B4J: IMPORTANT change in ABMaterial for B4J 5.80+

As B4J 5.80 has been updated to Jetty 9.4.6 (which contains an important change in the internal Session framework), you will need to update some code in StartServer() and StartServerHTTP2() in the ABMApplication module.

In pre B4J 5.80 with Jetty 9.3.x it was:

Dim joServer As JavaObject = srvr
joServer.GetFieldJO("server").RunMethod("stop", Null)
joServer.GetFieldJO("context").RunMethodJO("getSessionHandler", Null).RunMethodJO("getSessionManager", Null).RunMethodJO("getSessionCookieConfig", Null).RunMethod("setMaxAge", Array(31536000)) ' 1 year

'NEW FEATURE! Each App has its own Session Cookie
joServer.GetFieldJO("context").RunMethodJO("getSessionHandler", Null).RunMethodJO("getSessionManager", Null).RunMethodJO("getSessionCookieConfig", Null).RunMethod("setName", Array(ABMShared.AppName.ToUpperCase))
joServer.GetFieldJO("server").RunMethod("start", Null)

must be changed to this in B4J 5.80+ with Jetty 9.4.6:

Dim joServer As JavaObject = srvr
joServer.GetFieldJO("server").RunMethod("stop", Null)
joServer.GetFieldJO("context").RunMethodJO("getSessionHandler", Null).RunMethodJO("getSessionCookieConfig", Null).RunMethod("setMaxAge", Array(31536000)) ' 1 year

' NEW FEATURE! Each App has its own Session Cookie
joServer.GetFieldJO("context").RunMethodJO("getSessionHandler", Null).RunMethodJO("getSessionCookieConfig", Null).RunMethod("setName", Array(ABMShared.AppName.ToUpperCase))
joServer.GetFieldJO("server").RunMethod("start", Null)

' + This setting is with reservation until confirmation
Dim secs As Long = ABMShared.CacheScavengePeriodSeconds ' must be defined as a long, else you get a 'java.lang.RuntimeException: Method: setIntervalSec not matched.' error
joServer.GetFieldJO("context").RunMethodJO("getSessionHandler", Null).RunMethodJO("getSessionIdManager", Null).RunMethodJO("getSessionHouseKeeper", Null).RunMethod("setIntervalSec", Array As Object(secs))

This will be corrected in the next upcoming release 3.75 of ABMaterial.

Alwaysbusy

Click here to Donation and support ABMaterial

B4J: ABMaterial 3.20 Public/3.50 Donators Released!

ABMB4JABMaterial 3.50 for B4J introduces Drag & Drop of ABMContainers between Cells! This new feature took a couple of weeks to implement, but I’m proud of the result.
It opens up a whole new range of possibilities for Web Apps.

Not many bug fixing needed in this release. Proves ABMaterial is really stable and truly production ready! (Happy face)

ABMGoogleMap also adds the possibility to use marker clusters, which cleans up your google map if you have many markers in one map.

GM2

Head to the ABMaterial section on this blog to get your free copy of 3.20, or make a small donation to support the development and get the latest 3.50 version + 9 extra libraries and tools to use in your own projects!

Have a great summer!

Alwaysbusy

Click here to Donation and support ABMaterial

 

B4A + B4J: Profile your apps ‘live’ with ABMonitor

ABMonitor2

It has been some time since I could give my donators a new goodie;), and this time it is a library/tool to profile and monitor your B4J + B4A (7.01+) apps (not limited to ABMaterial WebApps!) I’ve been needing something like this for some time for my own projects, but couldn’t find one that suited me.  This can be a very good asset to find Memory Leaks or to track which method takes up to much time.

Using a very simple API, you can track how long the code execution time is, the times hit, average time, memory usage etc for any block of code you want to investigate.  I deliberately gave you this API freedom, as profiling ALL your code (as most programming languages do) is just drowning you in to much information so you don’t see the wood for the trees anymore.

QUICK NOTE: Do not forget to set your DONATORKEY and the port in the Viewer params.txt . The same port and the IP of your Viewer have to be used in the apps you are monitoring!

How it works:
ABMonitor uses the Jamon library, which has a extremely low overhead on your code. Just by disabling it (using the SetActive method), you can actually leave it in your production apps if you want (or use B4Js conditional compiling if you want to get rid of it all together in a production app).

ABMonitor consists of two main parts:
1. The ‘live’ ABMonitor Viewer.

Instructions: Simply start the Viewer in a command prompt using: java -jar ABMonitor.jar

This Viewer shows all the stuff you are monitoring with the API. It shows e.g. how many times some part of your code was hit, how long it took, what the average time was, when it was last accessed, memory consumption etc… It is presented in a TreeView Table, so you can check every detail (depending on how deep you’ve coded your profiling).  At the bottom, the last 50 runs are presented in some line charts.

Because the IDE of B4X is ‘live’, so is the Viewer! Thanks to this unique feature of the B4X products, you can update your code and see the results in the Viewer immediately.

Little side note: This ‘live’ IDE part is a little-known/promoted feature (except within the B4X community of course, as for us this is normal), but it has a HUGE advantage over any other tool out there.  In similar market aimed tools, like Xojo for example, you have to compile and re-compile every single time you make the smallest of changes to your code (on bigger projects it takes up to 20 minutes, some users reported). In B4X, just change the code, and continue running.  Not happy with it? Change it again and see what gives. BIG production time-saver! Some of you who used to program in VB6 know what I mean…

2. The ABMonitorB4X libraries (ABMonitorB4A.jar/ABMonitorB4J.jar).

Install instructions: Copy the xml and jars (dont’t forget jamon-2.81.jar), to your B4A or B4J libraries folder. In the IDE select the ABMonitorB4X library, the RandomAccessFile library and the Network library.

This API connects your own apps with the monitor. It basically consists of a Start and a Stop method.

First, we have to make the connection with the Viewer. Thanks to Erels new Resumable Subs, doing this is a breeze:

In Main make some declarations:

Sub Process_Globals
   Public Monitor As ABMonitor

   Private port As Int = 10090 ' <-- Set your Viewers Port!
   Private ip As String = "127.0.0.1" ' <-- Set your Viewers IP!
   Private abmonitor As AsyncStreams
   Private client As Socket

   ' Useful to quickly activate/deactivate the monitoring
   Public TRACKMONITOR As Boolean = True
End Sub

Next add the following resumable sub:

Sub ConnectMonitor()
   Dim c As Socket
   c.Initialize("client")
   c.Connect(ip, port, 5000)
   Wait For Client_Connected (Successful As Boolean)
   If Successful Then
     client = c
     abmonitor.InitializePrefix(client.InputStream, False, client.OutputStream, "abmonitor")
     Log("ABMonitor connected")
     Monitor.SetActive("Template", True,abmonitor, 5)
   Else
     Log("ABMonitor disconnected")
   End If
End Sub

Sub abmonitor_Error
   Monitor.SetActive("Template", False,Null, 0)
   Log("ABMonitor disconnected")
End Sub

You can set the interval the data should be send to the Viewer, in seconds, with the last parameter in ‘Monitor.SetActive(“Template”, True,abmonitor, 5)’.  In this example, it is every 5 seconds.  Note: This does not mean it is tracked every 5 seconds! The library will continue tracking everything, but it will only send all the info over to the Viewer every 5 seconds.

Finally, Initialize the monitor and call the resumable sub when your app starts (a good place is e.g. before StartMessageLoop in a Server app):

...
Monitor.Initialize("YOURDONATORKEY")

ConnectMonitor

StartMessageLoop

Ready to do some monitoring!

As I said, there are basically only two commands: Start and Stop.

There are two ways to monitor/profile your code (you can mix the use of them):

a. Monitor some code:
You want to monitor a query, or a whole sub, … In general this is a complete block of code.

Good practice is using the class/module name as the Group parameter, and the method name as the Label, but you can put whatever you want. This will later be used in the Viewer to group stuff. (Group and Label are the first and second parameters in the calls).

Example:

Private Sub WebSocket_Connected (WebSocket1 As WebSocket)
   If Main.TRACKMONITOR Then Main.Monitor.Start("ABMPageTemplate", "WebSocket_Connected", "")

   '   ... the code you want to monitor

   If Main.TRACKMONITOR Then Main.Monitor.Stop("ABMPageTemplate", "WebSocket_Connected", "")
End Sub

Or tracking a query:

..
If Main.TRACKMONITOR Then Main.Monitor.Start("ABMPageTemplate", "MySlowQuery", "")

Dim SQL_str As String
SQL_str = "SELECT cases.CaseID, cases.CaseUserID, cases.CaseType, cases.CaseSummary FROM tCases WHERE cases.CaseStatus=1;"
Dim cases As List = DBM.SQLSelect(SQL, SQL_str, Null)

If Main.TRACKMONITOR Then Main.Monitor.Stop("ABMPageTemplate", "MySlowQuery", "")
...

b. Monitor methods which are used in multiple places, and you want to know where it was called.
You have for example a page.Refresh method, which is called in multiple places. You can use the third parameter to set the ‘caller’. In general there will only be one line of code between the start() and stop().

This caller will later be used in the Viewer to build a call tree (or stack trace)

Example:

Private Sub WebSocket_Connected (WebSocket1 As WebSocket)
     ...
     If Main.TRACKMONITOR Then Main.Monitor.Start("ABMPageTemplate", "page.Refresh", "WebSocket_Connected")
     page.Refresh
     If Main.TRACKMONITOR Then Main.Monitor.Stop("ABMPageTemplate", "page.Refresh", "WebSocket_Connected")
     ...
End Sub

public Sub ConnectPage()
   ...
   ' refresh the page
   If Main.TRACKMONITOR Then Main.Monitor.Start("ABMPageTemplate", "page.Refresh", "ConnectPage")
   page.Refresh
   If Main.TRACKMONITOR Then Main.Monitor.Stop("ABMPageTemplate", "page.Refresh", "ConnectPage")
   ...
End Sub

As you can see, you are totally free to monitor anything you want.

Call for action: if anyone out there is a guru in making B4i libraries, please PM me!  The java library code is quite simple and it shouldn’t be to hard for an experienced B4i library coder to write one which can connect to the same Viewer.  If we got this one too, then we’ve covered all major platforms in B4X!

ABMonitor is part of a multi-pack on libraries, frameworks and tools all Donators to this blog receive.

Included are currently:

ABMaterial (B4J) A very powerful framework combining a tuned Materialize CSS with the free programming tool B4J. It allows creating Web Apps that not only look great thanks to Googles Material Design, but can be programmed with the powerful free tool from Anywhere Software without having to write a single line of HTML, CSS or Javascript code!

ABExchange (B4J) It can be used to sync the ABMCalendar control with your exchange server and outlook. It can also send a mail.

ABJasperReports (B4J) his is a little library that allows you to export reports created in Jasper Reports in your B4J applications. They can be exported to pdf, html and xls. You can use parameters defined in JasperReports.

ABPDFBox (B4J) With this library you can print PDF files (either by showing a dialogbox or directly to a specified printer). Works in UI and NON-UI apps.

ABMonitor (B4J + B4A) Tool to monitor/profile your B4A (7.01+) and B4J code! Includes the libraries for both platform + the ABMonitor Viewer. See the tutorial for more info.

ABCron (B4J + B4A) A more advanced timer library that can schedule more intelligently tasks using Cron expressions. You can also set a start and end datetime. I’ve added a method RestartApplicationNONUI() that should restart you .jar file when the Cron expression is met.

ABEvaluator (B4J + B4A) Evaluate mathematical expressions. You can also write your own functions in B4J/B4A.

ABPlugin (B4J) Create Live plugins for you own apps. This means you can create plugins that can be added/removed while your app is running. Note it is a little experiment that shows the power of B4J. The ‘compile to library’ feature of B4J is very handy to create plugins.

ABZXCVBN (B4J + B4A) Realistic password strength estimation.

ABTreeTableView (B4J) Custom B4J component which combines a TreeView with a TableView.

Until next time!

Alwaysbusy

Click here to Donation and support ABMaterial

B4J: New in ABMaterial 3.50: Drag and Drop about anything

ABMDragDrop

It may have been a bit silent the last few weeks around ABMaterial, but behind the scenes I have been working nights and weekends on maybe the biggest new feature since Chipmunk was introduced: Drag & Drop!

In 3.50, it will be possible to drag ABMContainers (and hence about anything in it) from one cell to another.

Let’s watch a video demonstration first:

Pretty cool hè!

How it works in B4J:
I explain the basics here, the DragDrop demo project included in the ABMaterial 3.50 download will show all tricks shown in the demo video.

1. Page_ParseEvent() gets a little bit of extra code to sync the moves made in the browser with our server

...
If SubExists(Me, eventName) Then
     Params.Remove("eventname")
     Params.Remove("eventparams")
     ' BEGIN NEW DRAGDROP
     If eventName = "page_dropped" Then
       page.ProcessDroppedEvent(Params)
     End If
     ' END NEW DRAGDROP
     Select Case Params.Size
     ...

2. Next we define a ‘DRAG’ group:

' name, minimum height of a cell
page.DragDropCreateGroup("DRAG", 150)

3. We add cells to this ‘DRAG’ group we want to drag & drop between. The last ‘null’ parameter can be any ABMComponent you want to use a title of the cell (e.g. the COLUMN X ABMLabel in the demo).

page.DragDropAddZone("DRAG", "DRAGCELL1", page.Cell(3,1),null)
page.DragDropAddZone("DRAG", "DRAGCELL2", page.Cell(3,2),null)
page.DragDropAddZone("DRAG", "DRAGCELL3", page.Cell(3,3),null)

4. We add our draggable ABMContainers to the cells. Note: they MUST be added with AddArrayComponent!

Here we also enable them to be draggable with cont.EnableDragDropZone().  There is also a shortcut method to enable/disable all ‘Zones/Cells’ in a group with cont.EnableDragDropAllZonesFromGroup() in one go.

page.Cell(3,1).AddArrayComponent(CreateCard("1", True, True, True, "I may be dragged everywhere", "../images/list1.jpg"), "Cards")
...

Sub CreateCard(ID As String, AllowInCell1 As Boolean, AllowInCell2 As Boolean, AllowInCell3 As Boolean, Title As String, image As String) As ABMContainer
  Dim cont As ABMContainer
  cont.Initialize(page, ID, "")
  cont.AddRows(1,True,"").AddCells12(1, "")
  cont.BuildGrid

  cont.IsTextSelectable = False

  If AllowInCell1 Then
    ' can be dragged to zone 1 of 'DRAG'
    cont.EnableDragDropZone("DRAG","DRAGCELL1",True)
  End If
  If AllowInCell2 Then
    ' can be dragged to zone 2 of 'DRAG'
    cont.EnableDragDropZone("DRAG","DRAGCELL2",True)
  End If
  If AllowInCell3 Then
    ' can be dragged to zone 3 of 'DRAG'
    cont.EnableDragDropZone("DRAG","DRAGCELL3",True)
  End If
  cont.EnableDragDropZone("DRAG","DRAGCELL4",True) ' for the sidebar

  Dim card As ABMCard
  card.InitializeAsCard(page, "card", "MY CARD", Title, ABM.CARD_SMALL, "")
  card.Image = image
  card.AddAction("Press me")

  ' add the card to the page
  cont.Cell(1,1).AddComponent(card)
  Return cont
End Sub

5. There are three events you will receive (all on Page level):

Sub Page_DragStart(component As String, source As String)
  Log("Drag start: " & component)
End Sub

Sub Page_DragCancelled(component As String, source As String)
  Log("Drag cancelled: " & component)
End Sub

' there are four parameters: component, source , target, before
Sub Page_Dropped(Params As Map)
  Log("Dropped: " & Params.Get("component"))
End Sub

And this is basically it! Very simple without having to write any HTML, CSS, PHP or Javascript. All done in pure B4J!

I’m finishing up ABMaterial 3.50, ABMonitor (an upcoming article on this for B4J and B4A soon on the blog) and ABTreeTableView now and early next week I think I may be able to release it to the donators.

Cheers,

Alwaysbusy

Click here to Donation and support ABMaterial

B4J: New section and page navigation feature in ABMaterial (3.02)

PageNav2

ABMaterial 3.02 Maintenance Release will have a new feature, especially useful for ‘one page’ apps/websites to navigate. It intruduces ‘sections‘ within a page. A section is a logical grouping of rows, which can have its own background and a new extra navigation method/menu.

Sections must be declared at the BuildPage() stage, and are typically created right after the page.BuildGrid() method.

First, let me show you how it works and then I’ll explain how this is archieved with just 12 lines of B4J code!

Video:

Code (creating the Theme):

theme.Page.AddSection("section1", ABM.COLOR_BLACK, "", ABM.COLOR_WHITE, "")
theme.Page.AddSection("section2", ABM.COLOR_BLACK, "", ABM.COLOR_BROWN, ABM.INTENSITY_LIGHTEN4)
theme.Page.AddSection("section3", ABM.COLOR_WHITE, "", ABM.COLOR_BLUE, ABM.INTENSITY_LIGHTEN3)
theme.Page.AddSection("section4", ABM.COLOR_WHITE, "", ABM.COLOR_GREY, ABM.INTENSITY_DARKEN3)

Code (Adding the sections & the navigation)

page.CreateSection("section1", 1,1,ABM.COLOR_WHITE, "", "", "", "","calc(100vh - 56px)", 56, 500, ABM.VISIBILITY_ALL,"Section1")
page.SetSectionNavigation("section1", "section2", "Go to Section 2", ABM.SECTION_BUTTONTYPE_DOWN, "section1", "Section 1" )
page.CreateSection("section2", 2,2,ABM.COLOR_GREEN, "", "../images/bg-1.jpg", ABM.CONTAINERIMAGE_REPEAT_NOREPEAT, ABM.CONTAINERIMAGE_POSITION_COVER, "calc(100vh - 56px)", 56, 500, ABM.VISIBILITY_ALL, "Section2")
page.SetSectionNavigation("section2", "section3", "Go to Section 3", ABM.SECTION_BUTTONTYPE_DOWN, "section2", "Section 2")
page.CreateSection("section3", 3,3,ABM.COLOR_BLUE, "", "", "", "", "calc(100vh - 56px)", 56, 500, ABM.VISIBILITY_ALL,"Section3")
page.SetSectionNavigation("section3", "section4", "Go to Section 4", ABM.SECTION_BUTTONTYPE_DOWN, "section3", "Section 3")
page.CreateSection("section4", 4,4,ABM.COLOR_BLACK, "", "", "", "", "calc(100vh - 56px)", 56, 500, ABM.VISIBILITY_ALL, "Section4")
page.SetSectionNavigation("section4", "section1", "Back to Section 1", ABM.SECTION_BUTTONTYPE_UP, "section4", "Section 4")

In this example each section has only a height of 1 row (hence the from row 1 to row 1, from row 2 to row 2,…)

But, this can be any size, e.g. from row 5 to row 25. Something like:

page.CreateSection("section5", 5,25,ABM.COLOR_BLACK, "", "", "", "", "calc(100vh - 56px)", 56, 500, ABM.VISIBILITY_ALL, "Section4")

NOTE: Sections cannot be nested or overlapping!

The tricky part are the minHeight and scrollTop params. In the above examples, I’ve set the minHeight to the browsers height, minus the height of the TopBar: “calc(100vh – 56px)”.
For scrollTop, I’ve set it the the height of the TopBar so the top of the section is right under the navigation bar: 56

ABMaterial 3.02 Maintenance Release will go out in acouple of days to the donators with 25 bug fixes and implemented wishes!

Alwaysbusy

Click here to Donation and get the latest ABMaterial first!

B4J: ABMaterial Facebook-like timeline in less than 200 lines!

ABMFacebook50

I recently had a question if it was possible to create a Facebook-like WebApp with ABMaterial for B4J. I had some time to spare tonight (yeah right):rolleyes: and decided to give it a go…

All I needed were a couple of ABMContainers and the new CloseContent/OpenContent feature introduced in 3.02. The existing NextContent system would provide the infinite page.

It also uses a ABMCustomComponent for the ‘Like’ feature (I based it on this project), and you can find the source code of the class under the video:

About an hour, and 200 lines of B4J code later, I had a working timeline!  A real project would of course need some way to add an article, save them in the database, user management, etc but this is out of scope of this article.

Note: This example will be included in the upcoming 3.02 Maintenance Update, but I would like to share the source source code for the ‘Like’ functionality beforehand.

Source code for the ‘Like’ custom component.
You’ll need this zip file for the images and js/css files. Put the images and css in the /www/css/custom folder, the js file in the /www/js/custom/ folder.

The class LikeComponent:

'Class module
Sub Class_Globals
   Public ABMComp As ABMCustomComponent
   Public Counter As Int
End Sub

'Initializes the object. Countries and data are Json Strings
Public Sub Initialize(InternalPage As ABMPage, ID As String, AlreadyLiked As Int)
   ABMComp.Initialize("ABMComp", Me, InternalPage, ID)
   Counter = AlreadyLiked
End Sub

Sub ABMComp_Build(internalID As String) As String
   Return $"
<div id="${internalID} class="facebook-reaction"><!-- container div for reaction system -->
        <span class="like-btn"> <!-- Default like button -->
          <span class="like-btn-emo like-btn-default"></span> <!-- Default like button emotion-->
           <span class="like-btn-text">Like</span> <!-- Default like button text,(Like, wow, sad..) default:Like  -->
<ul class="reactions-box"> <!-- Reaction buttons container-->
	<li class="reaction reaction-like" data-reaction="Like"></li>
	<li class="reaction reaction-love" data-reaction="Love"></li>
	<li class="reaction reaction-haha" data-reaction="HaHa"></li>
	<li class="reaction reaction-wow" data-reaction="Wow"></li>
	<li class="reaction reaction-sad" data-reaction="Sad"></li>
	<li class="reaction reaction-angry" data-reaction="Angry"></li>
</ul>
</span>
<div class="like-stat"> <!-- Like statistic container-->
           <span class="like-emo"> <!-- like emotions container -->
             <span class="like-btn-like"></span> <!-- given emotions like, wow, sad (default:Like) -->
           </span>
           <span class="like-details">${Counter} others</span></div>
</div>
"$
End Sub

Sub ABMComp_FirstRun(InternalPage As ABMPage, internalID As String)
   Dim script As String = $"$("#${internalID} .reaction").on("click",function(){  // like click
     var data_reaction = $(this).attr("data-reaction");
     $("#${internalID} .like-details").html("You and ${Counter} others");
     $("#${internalID} .like-btn-emo").removeClass().addClass('like-btn-emo').addClass('like-btn-'+data_reaction.toLowerCase());
     $("#${internalID} .like-btn-text").text(data_reaction).removeClass().addClass('like-btn-text').addClass('like-btn-text-'+data_reaction.toLowerCase()).addClass("active");;

     if(data_reaction == "Like") {
         $("#${internalID} .like-emo").html('<span class="like-btn-like"></span>');
     } else {
         $("#${internalID} .like-emo").html('<span class="like-btn-like"></span><span class="like-btn-'+data_reaction.toLowerCase()+'"></span>');
     }
     var json = {'target': '${internalID}', 'like': data_reaction};
     b4j_raiseEvent('likecomponent_liked', json);
     });    

     $("#${internalID} .like-btn-text").on("click",function(){ // undo like click
     if($(this).hasClass("active")){
       $("#${internalID} .like-btn-text").text("Like").removeClass().addClass('like-btn-text');
       $("#${internalID} .like-btn-emo").removeClass().addClass('like-btn-emo').addClass("like-btn-default");
       $("#${internalID} .like-emo").html('<span class="like-btn-like"></span>');
       $("#${internalID} .like-details").html("${Counter} others");
       var json = {'target':'${internalID}'};
         b4j_raiseEvent('likecomponent_unliked', json);
       }
     })"$

   InternalPage.ws.Eval(script, Array As Object(ABMComp.ID))
   ' flush not needed, it's done in the refresh method in the lib
End Sub

Sub ABMComp_Refresh(InternalPage As ABMPage, internalID As String)

End Sub

' do the stuff needed when the object is removed
Sub ABMComp_CleanUp(InternalPage As ABMPage, internalID As String)

End Sub

Usage:

Sub Class_Globals
   ...
   Dim myLike As LikeComponent
   ...
End Sub

' adding the component
myLike.initialize(page, ID & "Like", Rnd(20, 500))
myContainer.Cell(4,1).AddComponent(myLike.ABMComp)

Events (the name LikeComponent is set in the FirstRun() method of the class:

public Sub LikeComponent_Liked(value As Map)
   Log(value.Get("like") & " ----> " & value.Get("target"))
End Sub

public Sub LikeComponent_UnLiked(value As Map)
   Log("Unliked ----> " & value.Get("target"))
End Sub

Et voila,  a nice little demonstration of what you can make using B4J and ABMaterial.

I’ll end with a little word of advice:

If you only plan to learn one programming language this year, B4X is definitely the one you should pick!  With ABMaterial, I give you the power to write responsive, professional WebApps, and with the other B4X tools you write native Android, iOS, Desktop (Mac, Windows, Linux), Raspberry Pi and Arduino apps.  All with the same language!  You’ll wonder why you ever bothered looking at all those other pricy programming tools out there…

Happy programming!

Alwaysbusy

Click here to Donation and get the latest ABMaterial first!

B4J:Programming LEGO Mindstorms EV3

b4lego

I was wondering if it would be possible to use B4J to program the Lego Mindstorms EV3 Brick for some time. So, some weeks ago, I finally spend a couple of evenings looking into it. And yes, B4J goes Robotics! It uses a modified LeJOS Firmware.

I upgraded LeJOS to support Java 1.8, which is probably the most technical part of the project.  I cannot provide it here, as it depends on your Java version but if you follow the next steps, you can build your own.  This is done on a Windows PC:


Upgrading the LeJOS Firmware to use Java 1.8

The following procedure will install the java 8 environment compatible with leJOS 9.0 from windows 7. The only extra tool needed is 7ZIP (a free tool) which can generate tar and gz format.  In the following I use a temporary directoyr as F:\temp. Replace it with your own temp directory wherever it appears.

  1. Go to java site http://www.oracle.com/technetwork/java/ … 82511.html
  2. Create an account if you dont have one then Accept Licensee agreement and download ejdk-8-xxxxxxx-linux-arm-sflt-xxxxxxxx.tar.gz or the latest java8 jre for EV3.
  3. Unzip this file in your F:\temp directory. For simpler process you may rename the extracted directory  as ejdk8. Run 7zip as administrator!
  4. Go to directory ejdk8\ejdk1.8.0\bin. Save the file jrecreate.bat. Now right click on jrecreate.bat and select “modify”.  Add one first line to the bat file as SET JAVA_HOME=C:\Progra~2\Java\jdk1.8.xxxx.  this is where java8 is installed on my system. Program~2 stand for Program Files (x86) but is easier to type.
  5. Start a command window: Start->All prog->Accessory->commands.
  6. In this window type in the following commands
    F:
    cd temp
    cd ejdk8\ejdk1.8.0\bin
    jrecreate.bat –dest newjre –profile compact2 –vm clientIt should start creating the new jre files in the directory “newjre” under ejdk8\ejdk1.8.0\bin
    Wait for the final message.
    Close the command window.
  7. With file explorer go to F:\temp\ejdk8\ejdk1.8.0\bin. Copy “newjre” directory back to F:\temp
  8. Rename the “newjre” directory as something expected by LeJOS such as
    ejre-8-b132-linux-arm-sflt
  9. Right click on it. Open with 7ZIP and add to archive. Select tar format. It will create ejre-8-b132-linux-arm-sflt.tar file.
  10. Right click on tar copy then add archive with gzip format. It will create ejre-8-b132-linux-arm-sflt.tar.gz. You have created the JRE file for java8 expected by EV3.
  11. Insert your SD card and format it.
  12. Copy the ejre-8-b132-linux-arm-sflt.tar.gz under the sd card top directory.
  13. Go to C:\Program Files\leJOS EV3
  14. Now remove the SD from PV and insert the card into the EV3 brick then power it. Wait for the end of the install (about 10mn).

If anything goes wrong, format again the SD, empty the F:\temp directory and restart at step 3.  if it persist try another SD card.

Your brick is ready!


Next I wrote a B4J wrapper for the basics like motors, sensors etc. This project is just a hobby and may grow in the future. But I just wanted to share this first video (badly directed so no Oscars here, unless…)

Obviously, I wanted to test out my code, but I had to build a bot first.  Well, I was in for a surprise! It took me over 3 hours to build EV3D4 and I can tell you, I’m not a very patient person so I may have taken some shortcuts in the construction.

What happens in the video:
1. I uploaded the B4J created .jar file to the brick via ssh and I’m ready to start it.
2. After some time, it runs (on the brick shows a disclamer and waits for a key).
3. I disconnect the brick, put it on the ground and press a button on the brick.
4. I programmed the IR sensor so if it sees a wall, it turns away, else it keeps going.

Fun fact is you can use B4J-Bridge.jar on the brick!

This is handy as debugging a Brick is a b*tch. You must have a lot of patience and prepared to restart your brick A LOT. This is not a B4J limitation, just to say how unstable programming a Brick is in general.

Coding is straightforward in B4J (this is all the code I wrote, including turning if it is about to hit a wall):

Sub Process_Globals
   Private StartTimer As Timer
   Public EV3 As ABLegoEV3
   Public LeftMotor As ABLLargeRegulatedMotor
   Public RightMotor As ABLLargeRegulatedMotor
   Public Sensor As ABLIRSensor
   Public sp As ABLSensorMode

   Public control As Int = 0
   Public distance As Int = 255
End Sub

Sub AppStart (Args() As String)
   LeftMotor.Initialize("B")
   RightMotor.Initialize("C")

   LeftMotor.ResetTachoCount
   RightMotor.resetTachoCount
   LeftMotor.rotateTo(0)
   RightMotor.rotateTo(0)
   LeftMotor.Speed = 400
   RightMotor.Speed = 400
   LeftMotor.Acceleration = 800
   RightMotor.Acceleration = 800

   Log("starting sensor")
   Sensor.Initialize("S4")
   sp = Sensor.DistanceMode 

   IntroMessage

   StartTimer.Initialize("StartTimer", 100)
   StartTimer.Enabled = True
   StartMessageLoop
End Sub

Sub StartTimer_Tick
   ' read the sensor
   Dim sample(sp.sampleSize) As Float
   control = Sensor.getRemoteCommand(0)
   sp.fetchSample(sample, 0)
   distance = sample(0)
   Log("Control: " & control & " Distance: " & distance) 

   If distance < 70 Then
     Log("A wall!")
     EV3.Button.LEDPattern(2)

     LeftMotor.rotate2(-180, True) ' start Motor.B rotating backward
     RightMotor.rotate(-180)  ' rotate C farther To make the turn
     If Bit.And(DateTime.Now, 1) <> 0 Then
         LeftMotor.rotate2(-180, True) ' start Motor.B rotating backward
         RightMotor.rotate(180)  ' rotate C farther To make the turn
     Else
         RightMotor.rotate2(-180, True) ' start Motor.B rotating backward
         LeftMotor.rotate(180) ' rotate C farther To make the turn
     End If
  Else
     Log("Let's walk")
     EV3.Button.LEDPattern(1)

     LeftMotor.Speed = 400
     RightMotor.Speed = 400
     LeftMotor.Backward ' my motors are installed inverted on this robot
     RightMotor.Backward
  End If
End Sub

Sub IntroMessage()
   Dim g As ABLGraphicsLCD = EV3.GraphicsLCD
   g.clear
   g.drawString("Bumper Car Demo", 5, 0, 0)
   g.Font = g.Font.SmallFont
   g.drawString("Demonstration of the Behavior", 2, 20, 0)
   g.drawString("subsumption classes. Requires", 2, 30, 0)
   g.drawString("a wheeled vehicle with two", 2, 40, 0)
   g.drawString("independently controlled", 2, 50, 0)
   g.drawString("motors connected to motor", 2, 60, 0)
   g.drawString("ports B and C, and an", 2, 70, 0)
   g.drawString("infrared sensor connected", 2, 80, 0)
   g.drawString("to port 4.", 2, 90, 0)

   ' Quit GUI button:
   g.Font = g.Font.SmallFont
   Dim y_quit As Int = 100
   Dim width_quit As Int = 45
   Dim height_quit As Int = width_quit/2
   Dim arc_diam As Int = 6
   g.drawString("QUIT", 9, y_quit+7, 0)
   g.drawLine(0, y_quit,  45, y_quit) ' top line
   g.drawLine(0, y_quit,  0, y_quit+height_quit-arc_diam/2) ' left line
   g.drawLine(width_quit, y_quit,  width_quit, y_quit+height_quit/2) ' right line
   g.drawLine(0+arc_diam/2, y_quit+height_quit,  width_quit-10, y_quit+height_quit) ' bottom line
   g.drawLine(width_quit-10, y_quit+height_quit, width_quit, y_quit+height_quit/2) ' diagonal
   g.drawArc(0, y_quit+height_quit-arc_diam, arc_diam, arc_diam, 180, 90)

   ' Enter GUI button:
   g.fillRect(width_quit+10, y_quit, height_quit, height_quit)
   g.drawString2("GO", width_quit+15, y_quit+7, 0,True)

   EV3.Button.WaitForAnyPress
   If (EV3.Button.ESCAPE.isDown()) Then
     ExitApplication2(0)
   End If
   g.clear
End Sub

As I said, this is just for fun. No idea how far this will go.  You can download the source code for the B4J library from my Github.

Cheers,

Alwaysbusy

B4J: Msgbox and Inputbox in ABMaterial 2.51

upload_2017-2-12_12-0-6Sometimes you just need to show a quick Msgbox or a single-field Inputbox to the user. In ABMaterial for B4J you have probably, just like me, already made a couple of modal sheets to do this.

But in 2.51 I’ve integrated the possibility for such cases just to do it in one line of code (like a normal msgbox/inputbox).

It replaces the default looking ‘alert’ box from JavaScript to a more modern looking box.  The SweetAlert2 library, which is build on the orginal SweetAlert one, has been extended for ABMaterial so you can ‘Theme’ about anything you want.

For example, to show the msgbox you see on top of this article, this is the code you need to write:

page.Msgbox("MSGBOX1", "This is a very simple msgbox", "Msgbox()", "OK", "")

Some more examples:

theme.AddMsgBoxTheme("image")
theme.MsgBox("image").ConfirmButtonColor = ABM.COLOR_GREEN
theme.MsgBox("image").CancelButtonColor = ABM.COLOR_RED
theme.MsgBox("image").SetImage("https://unsplash.it/400/200", 400, 200)
theme.MsgBox("image").BackColor = ABM.COLOR_BLUEGREY
theme.MsgBox("image").BackColorIntensity = ABM.INTENSITY_LIGHTEN5

page.Msgbox2("MSGBOX3", "This is an msgbox with an image using a {C:#00AA00}theme{/C}!", "Msgbox2() 2", "OK","CANCEL",True, ABM.MSGBOX_TYPE_WARNING, "image")

upload_2017-2-12_12-2-24

page.InputBox("INPUTBOX1", "This is an inputbox for text.","OK", "CANCEL", True, ABM.INPUTBOX_TYPE_QUESTION, ABM.INPUTBOX_QUESTIONTYPE_TEXT,"","Type some text...", "", "Please enter something!", "")

upload_2017-2-12_12-3-30

page.InputBox("INPUTBOX3", "This is an inputbox for a password.","OK", "CANCEL", True, ABM.INPUTBOX_TYPE_QUESTION, ABM.INPUTBOX_QUESTIONTYPE_PASSWORD,"","Type your password...", "", "Please enter a password", "")

upload_2017-2-12_12-3-43

page.InputBox("INPUTBOX6", "This is an inputbox with a radio selection.","OK", "CANCEL", True, ABM.INPUTBOX_TYPE_QUESTION, ABM.INPUTBOX_QUESTIONTYPE_RADIO,"#00ff00", "","{'#ff0000': 'Red','#00ff00': 'Green','#0000ff': 'Blue'}", "You must select a color", "")

upload_2017-2-12_12-4-43

page.InputBox("INPUTBOX7", "This is an inputbox with a checkbox.","OK", "CANCEL", True, ABM.INPUTBOX_TYPE_QUESTION, ABM.INPUTBOX_QUESTIONTYPE_CHECKBOX,"", "I agree with the terms and conditions","", "Please agree with the conditions", "")

upload_2017-2-12_12-5-51

Events:

Sub page_MsgboxResult(returnName As String, result As String)
   myToastId = myToastId + 1
   page.ShowToast("toast" & myToastId, "toastgreen", returnName & " " & result, 5000)
End Sub

Sub page_InputboxResult(returnName As String, result As String)
   myToastId = myToastId + 1
   page.ShowToast("toast" & myToastId, "toastred", returnName & " " & result, 5000)
End Sub

ABMaterial Mainenance Release 2.51 will be available for the donators in the following days.

Alwaysbusy

Click here to Donation and get the latest ABMaterial first!

B4J: Custom component ABMGridTable (Team Project)

One of the most asked for components in ABMaterial is an editable Grid.  We already have ABMTable and ABMTableMutable, but they have their limitations when it comes to being editable. So, as this kind of object is huge, I suggest we make it a Team Effort to build one.

I did have a look around and found a nice one jsGrid which is feature rich, easy to use and fits rather well with the ABMaterial look and feel.

I already did the first part: modified the default CSS so it works with ABMaterial (checkboxes and combos did not work), created a basic class template and a sample on how to use it in a webapp.

Copy the CSS and JS files from the zip the css/custom/ and /js/custom/ folders of the ABMaterial www folder.
Start with localhost:51042/GridDemo

My current result looks like this (allows adding, deleting, changing, sorting and filtering):

upload_2017-2-6_12-34-40

Creating even such a complex component is very easy in B4J with ABMaterial.  Lets dive into some code:

The ABMTableGrid class

'Class module
Sub Class_Globals
	Public ABMComp As ABMCustomComponent
	Private cmbCountries As String
	Private DBdata As String
End Sub

'Initializes the object. Countries and data are Json Strings
Public Sub Initialize(InternalPage As ABMPage, ID As String, Countries As String, data As String)
	ABMComp.Initialize("ABMComp", Me, InternalPage, ID)
	cmbCountries = Countries
	DBdata = data
End Sub

Sub ABMComp_Build(internalID As String) As String
	Return $"
<div id="${internalID}"></div>
<script>var _${internalID};</script>"$
End Sub

Sub ABMComp_FirstRun(InternalPage As ABMPage, internalID As String)
	Dim script As String = $"_${internalID} = $("#${internalID}").jsGrid({
		height: "100%",
		width: "100%",
		filtering: true,
		inserting: true,
		editing: true,
		sorting: true,
		paging: true,
		autoload: true,
		pageSize: 10,
		pageButtonCount: 5,
		deleteConfirm: "Do you really want to delete the client?",
		controller: {
			loadData: function(filter) {
				return $.grep(${DBdata}, function(client) {
					var fName = filter.Name.toUpperCase();
					var fAddress = filter.Address.toUpperCase();
					return (!filter.Name || client.Name.toUpperCase().indexOf(fName) > -1)
						&& (!filter.Age || client.Age === filter.Age)
						&& (!filter.Address || client.Address.toUpperCase().indexOf(fAddress) > -1)
						&& (!filter.Country || client.Country === filter.Country)
						&& (filter.Married === undefined || client.Married === filter.Married);
					});
			},
			insertItem: function(insertingClient) {
				var json = JSON.stringify(insertingClient);
				b4j_raiseEvent('${ABMComp.ID}_inserted', {'value':json});
			},
			updateItem: function(updatingClient) {
				var json = JSON.stringify(updatingClient);
				b4j_raiseEvent('${ABMComp.ID}_updated', {'value':json});
			},
			deleteItem: function(deletingClient) {
				var json = JSON.stringify(deletingClient);
				b4j_raiseEvent('${ABMComp.ID}_deleted', {'value':json});
			}
		},
		fields: [
			{ name: "Name", type: "text", width: 150 },
			{ name: "Age", type: "number", width: 50 },
			{ name: "Address", type: "text", width: 200 },
			{ name: "Country", type: "select", items: ${cmbCountries}, valueField: "Id", textField: "Name" },
			{ name: "Married", type: "checkbox", title: "Is Married", sorting: false},
			{ type: "control" }
		]
	});"$

	InternalPage.ws.Eval(script, Array As Object(ABMComp.ID))
	' flush not needed, it's done in the refresh method in the lib
End Sub

public Sub SetDBData(data As String)
	DBdata = data
End Sub

Sub ABMComp_Refresh(InternalPage As ABMPage, internalID As String)
	Dim script As String = $"$("#${internalID}").jsGrid("refresh");"$
	InternalPage.ws.Eval(script, Null)
End Sub

Usage in a WebApp:

Sub Class_Globals
	...
	Dim myTableGrid As ABMTableGrid
	' fake database for demo purposes
	Dim database As Map
End Sub

' make sure you copied the files from the .zip in the right folders
public Sub BuildPage()
	...
	page.AddExtraCSSFile("custom/jsgrid.min.css")
	page.AddExtraCSSFile("custom/jsgrid-theme.min.css")
	page.AddExtraJavaScriptFile("custom/jsgrid.min.js")
	...
End Sub

public Sub ConnectPage()
	...
	' as for the demo, we fake a real database here
	LoadFakeData

	page.Cell(2,1).SetFixedHeight(500)

	' for our combo, we add a Json string counting the countries
	myTableGrid.Initialize(page, "myTableGrid", $"[
		{ Name: "", Id: 0 },
		{ Name: "United States", Id: 1 },
		{ Name: "Canada", Id: 2 },
		{ Name: "United Kingdom", Id: 3 },
		{ Name: "France", Id: 4 },
		{ Name: "Brazil", Id: 5 },
		{ Name: "China", Id: 6 },
		{ Name: "Russia", Id: 7 }
	]"$, LoadData)
    page.Cell(2,1).AddComponent(myTableGrid.ABMComp)
	...
End Sub

Sub LoadData() As String
	' we have to return a Json string
	Dim data As StringBuilder
	data.Initialize
	data.Append("[")
	For i = 0 To database.size - 1
		If i > 0 Then
			data.Append(",")
		End If
		data.Append(database.get(i))
	Next
	data.Append("]")
	Return data.ToString
End Sub

Sub myTableGrid_Inserted(value As Map)
	log(value.get("ID")
End Sub

Sub myTableGrid_Updated(value As Map)
	log(value.get("ID")
End Sub

Sub myTableGrid_Deleted(value As Map)
	log(value.get("ID")
End Sub

Sub LoadFakeData()
	database.Initialize
	database.Put(0,$"{"ID": 0,"Name": "Otto Clay","Age": 61,"Country": 6,"Address": "Ap #897-1459 Quam Avenue","Married": false}"$)
	database.Put(1,$"{"ID": 1,"Name": "Connor Johnston","Age": 73,"Country": 7,"Address": "Ap #370-4647 Dis Av.","Married": false}"$)
	...
End Sub

As you can see, adding this rather complex component took me about 10 minutes to make, literally the time to put on a pot of Java. (pun intended!)

So this is were you guys can come in!

Some suggestions:
1. Adapt my class so the fields are generic (maybe by passing a Map with field definitions in initialize and then ‘build’ the correct JavaScript string in FirstRun?).
2. I only have set some basic parameters (like sorting, filtering etc), but this component has a lot more to offer. They can become properties of the class. See the jsGrid link at the top of this article.

Download the full source code and share your changes in this B4J Forum topic, so everyone can benefit from your creation.

Alwaysbusy

Click here to Donation if you like my work

B4J: ABMaterial 2.20 Public/2.50 Donators released

abmaterial250

This is just an announcement for the new version(s) of ABMaterial for B4J! It has been a while since I’ve been able to release a new free (public) version, but it is worth the wait!

As the donators already know, 2.20 was a major release, as it tackled a whole new reconnecting system.  If you’re using the free version (pre 2.00), make sure you read the included documents to see how you need to upgrade to the new version!

It was also the first version that introduced the Grid Builder.  With this tool, it is now very easy to create your responsive framework.

2.50 containes a lot of new stuff, as you’ve read in the posts on this blog: ABMChat, ABMPlanner and ABMPercentSlider are only a few of the new things.  Worth mentioning are the major changes in the ABMPivot component, adding new features like exporting to Excel, collapsable rows and columns, new presentations and so on.

Check out the online demo abmaterial.com or download your free copy from the B4J website.

Donators will receive a download link for 2.50 shortly.

Happy Programming!

Alwaysbusy

Click here to Donation if you like my work

B4J: New ABMPlanner and ABMPercentSlider (ABMaterial 2.50)

abmplannerA friend of mine, who is a doctor, wanted me to write a scheduling webapp. He had some perticular requests:

1. You should be able to schedule per 5 minutes
2. But still need to be able to see the whole week
3. Wanted only to see the 5 working days (no weekends)
4. Should see from 06:00 to 21:00
5. As his assistant has to ‘fill’ the schedule, he also wanted somehow to show her when he would not be available.

I told him this quickly added up to showing about 840 possible appointments I had to show him on his desktop, tablet and iPhone. “Yes”, was his dry answer…

I didn’t know any such object, so I’ve put on my thinking hat and came up with ABMPlanner for B4J!

Although it has been written especially for his needs, I’m sure it can come in handy for other kind of projects too. For example you can schedule per 5, 10, 15, 20 or 30 minutes. You can set the start/end time of a day. And it can show a full week (including the weekend). You can give each task different colors etc…

It can also show the week as a ‘HeatMap’, so he can see very fast where he can put someone in-between other patients.

The second component ABMPercentSlider (in the video when the modalsheet is opened) is an alternative radio group component. It ranges the possibilities in a ‘percentage’ range, with 5% intervals.

But have a look at the video (app is work in progress and sorry it is in dutch). It can be intimidating at first glance, but once you ‘get’ it, it’s actually a breeze to schedule stuff.

Some relevant code:

BuildPage:

Dim plan As ABMPlanner
plan.Initialize(page, "plan", False, 6,20, 5,False,"black")
plan.UseHeatMap("1,3,6")
page.Cell(2,1).AddComponent(plan)

Adding a task (loading a random generated week):

Sub LoadRandomWeek(StartDay As Long,doRefresh As Boolean)
   Dim plan As ABMPlanner = page.Component("plan")
   plan.ClearPlanner

   Dim Days(7) As String
   Dim Day As Int = DateTime.GetDayOfMonth(StartDay)
   Dim nextDay As Long = StartDay
   Dim perNext As Period
   perNext.Initialize
   perNext.Days = 1
   For i = 0 To 6
     If ActiveDay = -1 Then
       If DateTime.Date(nextDay) = DateTime.Date(DateTime.Now) Then
         ActiveDay = i
       End If
     End If
     Days(i)   = Day
     If Days(i).Length = 1 Then
       Days(i) = "0" &amp; Days(i)
     End If
     nextDay = DateUtils.AddPeriod(nextDay, perNext)
     Day = DateTime.GetDayOfMonth(nextDay)
   Next
   Dim mins As List
   mins.Initialize
   mins.Add(1)
   mins.Add(3)
   mins.Add(6)
   mins.Add(12)
   plan.SetDayLabels("MA " &amp; Days(0), "DI " &amp; Days(1), "WO " &amp; Days(2), "DO " &amp; Days(3), "VR " &amp; Days(4),  "ZA " &amp; Days(5),  "ZO " &amp; Days(6))
   Dim PerTotal As Int = 12

   For i = 0 To 4
     Dim u As Int = 6
     Dim m As Int = 0
     Dim l As Int = 0
     Dim lIndex As Int
     Do While u &lt; 21
       Do While m &lt; PerTotal    
         m = m + Rnd(1,3)          
         lIndex = Rnd(0,3)
         l = mins.Get(lIndex)
         If (u*PerTotal + m + l) &lt; (21*PerTotal) And m &lt; PerTotal And (i &lt;&gt; 2 Or u &lt;=11 ) Then
           Dim patient As String = FirstNames.get(Rnd(0,19)) &amp; " " &amp; LastNames.get(Rnd(0,19))
           counter = counter + 1
           plan.AddTask(NewTask(i, "T" &amp; counter,u,m,l,patient,lIndex)) ' taskid must be a string!                
         End If
         m = m + l
       Loop
       m = m - PerTotal
       u = u + 1
     Loop
   Next

   plan.SetActiveDay(ActiveDay)
   For i = 12 To 20
     plan.SetHourStatus(2,i,False)
   Next
   If doRefresh Then
     plan.Refresh
   End If
End Sub

Events:

Sub plan_ActiveDayChanged(day As Int)
   Log("New day: " &amp; day)
   ActiveDay = day
   ' important to sync the server with the browser!
   Dim plan As ABMPlanner = page.Component("plan")
   plan.SetActiveDay(ActiveDay)
End Sub

Sub plan_MinutesClicked(Value As String)
   Dim spl() As String = Regex.Split(";", Value)
   ' spl(0) is here always 0, as this would contain the menu item clicked.  This is to be uniform with the MenuClicked Value param
   Log("Day: " &amp; spl(1))
   Log("Hour: " &amp; spl(2))
   Log("MinPer5: " &amp; spl(3))
   ' use the ABM.PLANNER_STATUS_ constants to check the status
   Log("Status: " &amp; spl(4))
   Log("Task ID: " &amp; spl(5))

   page.ShowModalSheet("patientafspraak")
End Sub

Sub plan_MenuClicked(MenuType As String, Value As String)
   Dim spl() As String = Regex.Split(";", Value)
   Dim plan As ABMPlanner = page.Component("plan")
   Log("MenuType: " &amp; MenuType)
   Log("Value: " &amp; Value)
   Select Case MenuType
     Case ABM.PLANNER_MENUTYPE_DAY
       ' update the database

       Log("Day: " &amp; spl(1))

       Select Case spl(0)
         Case ABM.PLANNER_MENU_SETFREE
           plan.SetDayStatus(spl(1), True)
         Case ABM.PLANNER_MENU_SETNOTAVAILABLE
           plan.SetDayStatus(spl(1), False)
       End Select

       ' IMPORTANT to perform the action in the browser
       plan.PerfromDayHourMenuAction
     Case ABM.PLANNER_MENUTYPE_HOUR
       ' update the database

       Log("Day: " &amp; spl(1))
       Log("Hour: " &amp; spl(2))

       Select Case spl(0)
         Case ABM.PLANNER_MENU_SETFREE
           plan.SetHourStatus(spl(1), spl(2), True)
         Case ABM.PLANNER_MENU_SETNOTAVAILABLE
           plan.SetHourStatus(spl(1), spl(2), False)
       End Select

       ' IMPORTANT to perform the action in the browser
       plan.PerfromDayHourMenuAction  
     Case ABM.PLANNER_MENUTYPE_MIN
       ' update the database

       Log("Day: " &amp; spl(1))
       Log("Hour: " &amp; spl(2))
       Log("MinPer5: " &amp; spl(3))
       ' use the ABM.PLANNER_STATUS_ constants to check the status
       Log("Status: " &amp; spl(4))
       Log("Task ID: " &amp; spl(5))

       Select Case spl(0)
         Case ABM.PLANNER_MENU_CUT
           cutTaskID = spl(5)
           copyTask = plan.GetTask(spl(5))
           IsCut = True
           myToastID = myToastID + 1
           page.ShowToast("toast" &amp; myToastID, "toastred", "Verplaats " &amp; copyTask.Text &amp; " naar...", 5000)
         Case ABM.PLANNER_MENU_COPY
           copyTask = plan.GetTask(spl(5))
           IsCut = False
           myToastID = myToastID + 1
           page.ShowToast("toast" &amp; myToastID, "toastred", "Kopieer " &amp; copyTask.Text &amp; " naar...", 5000)
         Case ABM.PLANNER_MENU_PASTE
           If IsCut Then
             plan.RemoveTask2(cutTaskID)
           Else
             counter = counter + 1
             copyTask = copyTask.Clone("T" &amp; counter)
           End If
           copyTask.Day = spl(1)
           copyTask.StartHour = spl(2)      
           copyTask.StartMinututesPer = spl(3)
           plan.AddTask(copyTask)      
           plan.Refresh
           If IsCut Then
             myToastID = myToastID + 1
             page.ShowToast("toast" &amp; myToastID, "toastred", copyTask.Text &amp; " verplaatst!", 5000)
           Else
             myToastID = myToastID + 1
             page.ShowToast("toast" &amp; myToastID, "toastred", copyTask.Text &amp; " gekopieerd!", 5000)
           End If
         Case ABM.PLANNER_MENU_DELETE
           plan.RemoveTask2(spl(5))
           plan.Refresh
       End Select

   End Select
End Sub

These are the final components for ABMaterial 2.50. I’m now going to prepare everything for the next release. (updating the demos etc), so donators will receive these new toys shortly…

Alwaysbusy

Click here to Donation and support ABMaterial

 

 

B4J: ABMaterial 2.20 with ABMGridBuilder

gridbuilder1

Responsive design is great, but at the same time something that is not so easy to grasp as it works over different levels.  ABMaterial has been using this concept from the very beginning using Materialize CSS and to make it easier, I created a builder for it.

A great start was the implementation done for Bootstrap: Shoelace.io.  I liked the idea of ‘drawing’ your grid.  However, for ABMaterial, I did want more.

Objectives:

  1. Needed to generate B4J source code, not html
  2. I wanted a way to return B4J code back to the builder
  3. Some extra functionalities to insert cells before/after another
  4. Save/Load to re-use designs.
  5. The generated code should include a ‘description’ of the grid.
  6. A ‘light’ and a ‘dark’ theme for night owls like me

Here is a little demonstration on how to work with it:

It generates code something like this:

'PHONE
'╔═══════════════════════════════════════════════════════════════════════════════════╗
'║ 1,1                                                                               ║
'╠═══════════════════════════════════════════════════════════════════════════════════╣
'║ 2,1                       | 2,2                       | 2,3                       ║
'║-----------------------------------------------------------------------------------║
'║ 2,4                       | 2,5                       | 2,6                       ║
'║-----------------------------------------------------------------------------------║
'║ 2,7                       | 2,8                       | 2,9                       ║
'║-----------------------------------------------------------------------------------║
'║ 2,10                      | 2,11                      | 2,12                      ║
'╠═══════════════════════════════════════════════════════════════════════════════════╣
'║ 3,1                                                                               ║
'╠═══════════════════════════════════════════════════════════════════════════════════╣
'║ 4,1                                                                               ║
'╚═══════════════════════════════════════════════════════════════════════════════════╝

'TABLET
'╔═══════════════════════════════════════════════════════════════════════════════════════════════════════════╗
'║ 1,1                                                                                                       ║
'╠═══════════════════════════════════════════════════════════════════════════════════════════════════════════╣
'║ 2,1                      | 2,2                      | 2,3                      | 2,4                      ║
'║-----------------------------------------------------------------------------------------------------------║
'║ 2,5                      | 2,6                      | 2,7                      | 2,8                      ║
'║-----------------------------------------------------------------------------------------------------------║
'║ 2,9                      | 2,10                     | 2,11                     | 2,12                     ║
'╠═══════════════════════════════════════════════════════════════════════════════════════════════════════════╣
'║ 3,1                                                                                                       ║
'╠═══════════════════════════════════════════════════════════════════════════════════════════════════════════╣
'║ 4,1                                                                                                       ║
'╚═══════════════════════════════════════════════════════════════════════════════════════════════════════════╝

'DESKTOP
'╔═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╗
'║ 1,1                                                                                                                               ║
'╠═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╣
'║ 2,1      | 2,2      | 2,3      | 2,4      | 2,5      | 2,6      | 2,7      | 2,8      | 2,9      | 2,10     | 2,11     | 2,12     ║
'╠═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╣
'║ 3,1                                                                                                                               ║
'╠═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╣
'║ 4,1                                                                                                                               ║
'╚═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╝

cont1.AddRows(1, True,"").AddCells12(1,"")
cont1.AddRows(1, True,"").AddCellsOS(12,0,0,0,4,3,1,"")
cont1.AddRows(2, True,"").AddCells12(1,"")
cont1.BuildGrid ' IMPORTANT!

This description of the grid is very handy when you start adding your components. As you can see in the video, copying the AddRows lines and parsing them back into the builder makes it easy to make changes.

The functionalities are all in the grid itself so you can work fast:

gridbuilder2

ABMGridBuilder is completely written in B4J, so it runs on all desktop platforms (Windows, OSX, Linux).

Tools like this make creating WebApps with ABMaterial and B4J even easier.  It is astonishing how versatile the B4X programming suite from Anywhere Software really is.  It is unique, fast, super stable and full of features nowhere else to be found. I’m so glad I discovered this great tool!

Donators will receive their mail with the download link shortly.

See ya!

Alwaysbusy

Click here to Donation and support ABMaterial

 

B4J: ABMaterial building a QR Code component

qrcodecomp

On the B4J forum, liulifeng77 asked the question how he could draw a QR Code in an ABMaterial web page.

I had 5 minutes to spare, so I created the QRCode component using ABMCustomComponent. It is using this javascript library: https://github.com/davidshimjs/qrcodejs

The component class CompQRCode:

'Class module
Sub Class_Globals
     Public ABMComp As ABMCustomComponent
     Public myText As String
   Public myWidth As Int
   Public myHeight As Int
   Public myColorDark As String
   Public myColorLight As String
   Public myCorrectLevel As String
End Sub
'Initializes the object. You can add parameters to this method if needed.
Public Sub Initialize(InternalPage As ABMPage, ID As String, text As String, width As Int, height As Int, colorDark As String, colorLight As String, correctLevel As String)
     ABMComp.Initialize("ABMComp", Me, InternalPage, ID)
     myText = text
   myWidth = width
   myHeight = height
   myColorDark = colorDark
   myColorLight = colorLight
   myCorrectLevel = correctLevel
End Sub
Sub ABMComp_Build(internalID As String) As String
  Return $"
<div id="${internalID}svg"/></div>
<script>var qrcode${internalID};</script>"$
End Sub
' Is useful to run some initalisation script.
Sub ABMComp_FirstRun(InternalPage As ABMPage, internalID As String)
   Dim script As String = $"qrcode${internalID} = new QRCode(document.getElementById("${internalID}svg"), {
  text: "${myText}",
  width: ${myWidth},
  height: ${myHeight},
  colorDark : "${myColorDark}",
  colorLight : "${myColorLight}",
  correctLevel : ${myCorrectLevel}
});"$
     InternalPage.ws.Eval(script, Array As Object(ABMComp.ID))
     ' flush not needed, it's done in the refresh method in the lib
End Sub
' runs when a refresh is called
Sub ABMComp_Refresh(InternalPage As ABMPage, internalID As String)
   Dim script As String = $"qrcode${internalID}.clear();
   qrcode${internalID}.makeCode("${myText}");"$
     InternalPage.ws.Eval(script, Array As Object(ABMComp.ID))
End Sub
' do the stuff needed when the object is removed
Sub ABMComp_CleanUp(InternalPage As ABMPage, internalID As String)
End Sub

Usage (if you want to change its text at run time, put the declaration in Class_globals):

Dim QRCode As CompQRCode

In BuildPage() load the javascript library:

page.AddExtraJavaScriptFile("custom/qrcode.min.js")

In ConnectPage():

QRCode.Initialize(page, "qrcode", "Alwaysbusy's ABMaterial", 128,128, "#000000", "transparent", "QRCode.CorrectLevel.H")
page.Cell(3,1).AddComponent(QRCode.ABMComp)

Et voila, another new component!

Alwaysbusy

Click here to Donation and support ABMaterial

B4J: ABMaterial Public 1.22/Donators 2.00 now released

It has been a long night to get everything ready, but I’m happy to release the new version(s) of ABMaterial for B4J!

2.00 is a major release.  Lots of new stuff and some changes that were really needed in preparation of the upcoming (ABMaterial Abstract Desinger) ABMAD tool.

Highlights of the releases:

1.22: New component ABMPatternLock

ABMPatternLock is yet another authentication method you can use based on the popular Pattern Lock you see in e.g. Android.

patternlock

1.22: ABMContainer can collapse

ABMContainer can be initialized as a collapsable component.  As a collapsable has a header and a body and clicking on the header will collapse/expand the body.  This can be used as an alternative for an ABMCard so you can build your own.

1.22: Support for Font-Awesome icons

If you set: page.UseFontAwesome = true then you can, next to the material icons, also use the Font Awesome Icon library (634 icons in used version Font Awesome 4.6.3)
See fontawesome.io for a list of icons.

fontawesome

2.00: New component ABMChronologylist

The ABMChronologyList is a vertical timeline component. Useful to give an overview of a limited period. It is device aware so e.g. on a phone, all items will be one under each other.

chronology

2.00: New helper ABMSideBar

In ABMaterial 2.00, you will be able to define multiple side bars (sliding in from the right). I’ve tried to mimic the usage of ABMSideBar as much of the existing Side Navigation menu. The tricky part was making it work well with the NavigationBar, on all screensizes.

Check out the online demo abmaterial.com or download your free copy from the B4J website.  Make sure you read the included README.TXT files.  It contains some important info and shows some tips and tricks.

That’s it for now.  Next big release will be all about ABMAD. Until next time!

Alwaysbusy

Click here to Donation if you like my work

B4J: Future steps for ABMaterial

evolution

As ABMaterial has grown to a production ready framework for WebApps using B4J, I recently started a poll on the B4X forum to find out what could be the next steps in its evolution.

I came up with 3 things to do. They would require about the same develop time, but it could be useful to see what the actual users of ABMaterial would like me to work on next.

The possible choices were:

1. ABMXPlay
This is the component you have seen some demos of and will be more for game developers. It still needs a lot of attention before it can be released.

2. B4JS
The Basic to Javascript transpiler is now in its very early stages. It is a tough one to write without finishing ABMXplay first, as the ABMXPlay component would be the first to really benefit from it. The B4J core functions have been covered, but big parts of all ABMComponents need to be refactored to start using B4JS.

3. ABMaterialAbstractDesigner
A full blown Abstract Visual Designer like the one in B4J. This is NOT a code generator but the real deal. Code generators may look nice at first sight, but  have a huge disadvantage: they go one way. ABMAbstractDesigner would work like the B4X ones: you create a layout, develop, change the layout, continue to develop and so on without losing what you have written in code. I’ll use the grid designer I’ve shown as a proof of concept in another post + the possibility to put ABMComponents on them. I’ve done some tests this weekend and it would work very similar as the other B4X tools.

4. Other (please specify)

The poll is now nearly ended and besides some interesting messages with excellent pointers, it was quite obvious from the beginning that the ABMaterialAbstractDesigner (will need a working title for this project, lets call it ABMAD for now…) would be the next part I’ll be working on. (Almost 75% in the poll at the time of writing).  This was also my preferred choice as one user did not really have the patience to wait for me and started to write some kind of code generator.  However, his limited knowledge of the ABMaterial framework has the potential of starting to reflect bad on ABMaterial itself so it is time for me to jump in.

Making ABMAD will happen in a couple of logical steps:

  1. Making the ABMaterial components ready for a designer.  This will ask for some (minor) changes to them so they can be serialized and expose their properties to the designer.
  2. Making a grid builder.  This is the biggest step new users have to overcome nowadays.
  3. Making a properties view for the components.
  4. Drag/Drop facilities to add components to specific cells
  5. Let the ABMaterial library communicate with the Designer output in a similar way as B4X does now.

This will not happen overnight, but the benefits for ABMaterial programmers will be substantial.  This will NOT be a simple code generator. ABMAD will work bidirectional.  And you’ll be able to make layouts in ABMAD and mix them with manually written code like you can do in B4X/ABMaterial now.

Note: To avoid future misunderstandings, the license of ABMaterial 2.0 will include the following statement:

4. YOU AGREE NOT TO DISTRIBUTE, FOR A FEE, AN APPLICATION USING THE LIBRARY THAT, AS ITS PRIMARY PURPOSE, IS DESIGNED TO BE AN AID IN THE DEVELOPMENT OF SOFTWARE FOR YOUR APPLICATION’S END USER. SUCH APPLICATION INCLUDES, BUT IS NOT LIMITED TO, A DEVELOPMENT IDE OR A B4J SOURCE CODE GENERATOR.

Let me explain. The philosophy of ABMaterial (and myself) is giving anyone the chance to easily build great WebApps without having to spend any money. One of the reasons I picked B4J was because it is free. Those who can spare something, donate to stimulate my continuation on the project and in so help giving other not so fortunate people an equal chance to grow. Any derived development tool or generator that uses ABMaterial must follow this philosophy so the tool must be available with 100% of its features for free (not even a ‘limited’ free version is acceptable).

This has no impact on whatever WebApp you make with ABMaterial, but is solely a protection against some ‘money-grubber’ who sees the potential of the ABMaterial framework and thinks of making some easy money using my engine by simply writing a layer above it. Just to be clear, ‘FEE’ here means ANY form of payment or compensation, donations included.

So now that this is out of the way, I think it’s time to step up to the drawing board and start to make some decisions on how ABMAD will look like.

Fun times ahead!

Alwaysbusy

Click here to Donation and support ABMaterial

 

 

 

 

 

 

 

B4J: Creating your own components in ABMaterial

abmcustgauge

Although ABMaterial has already a lot of components build-in, sometimes you just need a specific one.  I had a question on the B4J forum from CGP who needed a Gauge component.

So let’s build one! CGP had found a very nice library JustGage that would allow him to get the Gauge he wanted. Its value had to be updateable from within B4J, and this was a bit tricky. It looked like we have to be a bit creative because this javascript library did not connect its parent tag with the created JustGage.

We will have to keep track of the JustGage variable ourselves by adding a script tag in the build:

Sub ABMComp_Build(internalID As String) As String
  Return $"<div id="${internalID}"></div><script>var _${internalID};</script>"$
End Sub

The rest of the code is straight forward and we can just follow the javascript instructions and add them in our relative events.

An ABMaterial custom component has 4 important events:

ABMComp_Build(): This is where we have to add the html tag (anchor) for the new component.  In this particular case we also have to add a <script> tag that will hold our justGage variable.  We can then later use this variable to update the Gauge chart.

ABMComp_FirstRun(): Here we can add a script that will run, well, at first run. In most cases, this is where we add the libraries javascript initialization code. The B4J $””$ Smartstrings are in methods like this particulary handy. Use them!

ABMComp_Refresh(): The place where we can adjust properties of the javascript component.  Like for this component, we’ll adjust the value of the gauge.

ABMComp_CleanUp(): An event that is raised when the component is removed.  Could be useful to do some cleanup in the html of set javascript variables to null.

Here is the complete B4J code for our customGauge component:

Sub Class_Globals
   Public ABMComp As ABMCustomComponent
  Public myValue As Int
  Public myLabel As String
End Sub

'Initializes the object. You can add parameters to this method if needed.
Public Sub Initialize(InternalPage As ABMPage, ID As String, value As Int, name As String)
  ABMComp.Initialize("ABMComp", Me, InternalPage, ID)
  myValue = value
  myLabel = name
End Sub

Sub ABMComp_Build(internalID As String) As String
  Return $"<div id="${internalID}"></div><script>var _${internalID};</script>"$
End Sub

' Is useful to run some initalisation script.
Sub ABMComp_FirstRun(InternalPage As ABMPage, internalID As String)
  Dim script As String = $"_${internalID} = new JustGage({
  id: "${internalID}",
  value: ${myValue},
  Min: 0,
  Max: 100,
  relativeGaugeSize: true,
  title: "${myLabel}"
  });"$

  InternalPage.ws.Eval(script, Array As Object(ABMComp.ID))
  ' flush not needed, it's done in the refresh method in the lib
End Sub

' runs when a refresh is called
Sub ABMComp_Refresh(InternalPage As ABMPage, internalID As String)
  Dim script As String = $"_${internalID}.refresh(${myValue});"$
  InternalPage.ws.Eval(script, Null)
End Sub

' do the stuff needed when the object is removed
Sub ABMComp_CleanUp(InternalPage As ABMPage, internalID As String)

End Sub

Now, how do we use our new component in our B4J ABMaterial WebApp?

First, we’ll need to make our custGauge a global variable on the page:

Sub Class_Globals
  Dim custGauge As CustomGauge
  ...

Next, we add the justGauge libraries in the BuildPage().  We’ve placed them in \www\js\custom folder so we can add:

Sub BuildPage()
  ...
  page.AddExtraJavaScriptFile("custom/justgage.js")
  page.AddExtraJavaScriptFile("custom/raphael-2.1.4.min.js")
  ...

In the ConnectPage, we’ll create the actual Gauge and we add a button so we can change its value:

Sub ConnectPage()
  ...
  custGauge.Initialize(page, "custGauge", 25, "Test")
  page.Cell(7,1).AddComponent(custGauge.ABMComp)

  Dim custGaugebtn1 As ABMButton
  custGaugebtn1.InitializeRaised(page, "custGaugebtn1", "", "", "BUTTON", "")
   page.Cell(7,1).AddComponent(custGaugebtn1)
   ...

And finally we add out button code to adjust the value of the Gauge:

Sub custGaugebtn1_Clicked(Target As String)
   custGauge.myValue = Rnd(10,100)
   custGauge.ABMComp.Refresh
End Sub

And just like that, it looks like a fun new component we’ve got in B4J ABMaterial!

Until next time,

Alwaysbusy

Click here to Donation and support ABMaterial

 

B4J: ABMaterial Public 1.12/Donators 1.20 now released

So, what happened to 1.09, 1.10 and 1.11?
Version 1.09 does not exist. I’ve changed it to 1.10 so I can use the major number as the main release update and the minor number for maintenance releases. e.g. maintenance releases for 1.10 are 1.11,1.12, etc… The next big release is 1.20.

Highlights of the releases:

All components are fully dynamic

In a ‘static’ page, all the components are written in the .html file. In a ‘dynamic’ page they are not. Only when you connect as a user, the components are inserted in their browser.

This seems trivial, but this actually means we can ‘write’ components (html, css and javascript) at run-time, depending on e.g. the user that logged in. Some user is allowed to see one chart, another user another chart. Or one may be able to delete a record from your database, another is not. Or showing a certain modal sheet depending on the user without having to add all possibilities in the HTML. Or show the page in different languages depending on who logged in!

New component ABMTimeLine

ABMTimeline is a component to present a time line of events. Using the ABMTimeLineElement you can create events, with some assets like images.

abmaterial-abmtimeline

New component ABMFlexWall

ABMFlexWall is a simple galarie component for images.  Together with the IsMaterialBoxed=true setting, it creates an easy to use image wall.

abmaterial-flexwall

Speed, the need for speed…

Following all the guidelines of Google, ABMaterial is one of the fastest framesworks around.  Not only in time of development, but this is certainly the case for the user experience. And all done in the background for you!

googletest

Firebase Auth and Storage support (1.20)

ABMaterial is always on top of new technologies.  Latest in line is support of Googles Firebase API. You can use Firebase Auth to login to your ABMaterial (1.20) WebApp and with Storage, you can upload/download files with ease. Together with B4X Firebase support, you can build the most powerful apps ever.

New components ABMSVGSurface, ABMFileInput, ABMTableMutable and ABMPatternLock (1.20)

Always on the move, new components are introduced with every release.  Donators can find more info on these new components in their mail.  More on this blog when 1.20 is released to the public.

So check out the online demo abmaterial.com or download your free copy from the B4J website

Until next time!

Alwaysbusy

Click here to Donation if you like my work

 

B4J: ABTelegram bots library

Bots are the next hot thing in 2016! So in my spare-spare time I’ve been working on a wrapper for the Telegram API v2.0. It has a rather unconventional API but I’m reworking it to make it very easy to write bots in B4J.

Bots could be very useful as yet another way to ‘talk’ with IoT devices. You can control LEDs, temperatures, ask for stats etc right from within the Telegram Chat App (which runs on about every kind of platform, being the desktop, a browser, iOS, Android, etc…). Or you can, like I did to test the wrapper, write a little game:

ABTelegram

Note: this library is in very early stages so the wrapper is not available for download yet. Full source code of the game will also be available when released.

Some sample code to show you how easy it is to write a bot in B4J (this is not the game code, just some tests):

Code to initialize the library:

Sub Process_Globals
   Dim ABT As ABTelegram
End Sub

Sub AppStart (Args() As String)
   Dim b As MyBot
   b.Initialize
   ABT.RegisterLongPollingBot(b.Bot)

   StartMessageLoop
End Sub

Code for the Bot:

'Class module
Sub Class_Globals
Dim ABT As ABTelegram
Public Bot As ABTLongPollingBot
Private botToken As String = &quot;207189xxxx:yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy&quot;
Private botUserName As String = &quot;zzzzzzzzzBot&quot;
'Private callbackCounter As Int
End Sub

'Initializes the object. You can add parameters to this method if needed.
Public Sub Initialize
Bot.Initialize(&quot;Bot&quot;, Me, botToken, botUserName)
Dim upds As List = Bot.botgetUpdates
For i = 0 To upds.Size - 1
Dim upd As ABTUpdate = upds.Get(i)
Log(&quot;Go update: &quot; &amp; upd.UpdateId)
Next
End Sub

Sub Bot_UpdateReceived(update As ABTUpdate)
Log(&quot;Got an update&quot;)
If update.hasMessage Then
Dim msg As ABTMessage = update.GetMessage
Log(&quot;Message: &quot; &amp; msg.Text)

'        Dim userPhotos As ABTUserProfilePhotos = Bot.BotGetUserProfilePhotos(msg.Chat.id)
'        Log(&quot;photos: &quot; &amp; userPhotos.TotalCount)
'        Dim Photos As List = userPhotos.Photos
'        For i = 0 To Photos.Size - 1
'            Dim photoSizes As ABTPhotoSizes = Photos.Get(i)
'            For j = 0 To photoSizes.Sizes.Size - 1
'                Dim photoSize As ABTPhotoSize = photoSizes.Sizes.Get(j)
'                Dim photoFile As ABTFile = Bot.BotGetFile(photoSize.FileId)
'                Log(photoFile.FilePath)
'
'                Dim job1 As HttpJob
'                job1.Initialize(&quot;Job&quot; &amp; j, Me)
'                job1.Tag = photoFile.FilePath.Replace(&quot;photo/&quot;, &quot;&quot;)
'
'                Dim url As String = &quot;https://api.telegram.org/file/bot&quot; &amp; botToken &amp; &quot;/&quot; &amp; photoFile.FilePath
'                   job1.Download(url)
'               Next
'        Next

'        callbackCounter = callbackCounter + 1
'        Bot.BotSendMessageAsync(callbackCounter, msg.ChatId, &quot;Alweer hallo &quot; &amp; msg.Chat.FirstName)

Bot.BotSendMessage(msg.ChatId, &quot;Using an Emoji &quot; &amp; &quot;:grinning: in the message!&quot;) ' see    https://github.com/vdurmont/emoji-java for a list of emojis

'        Bot.BotSendPhoto(True, msg.ChatId, File.DirApp &amp; &quot;/&quot; &amp; &quot;telegram.png&quot;)

'        callbackCounter = callbackCounter + 1
'        Bot.BotSendDocumentAsync(callbackCounter, True, msg.ChatId, File.DirApp &amp; &quot;/&quot; &amp; &quot;mydocument.pdf&quot;, &quot;mydocument.pdf&quot;)

'        Bot.BotSendDocument(True, msg.ChatId, File.DirApp &amp; &quot;/&quot; &amp; &quot;mydocument.pdf&quot;, &quot;mydocument.pdf&quot;)

Bot.BotSendAudio(True, msg.ChatId, File.DirApp &amp; &quot;/&quot; &amp; &quot;myaudio.mp3&quot;)

'        Bot.BotSendVideo(True, msg.ChatId, File.DirApp &amp; &quot;/&quot; &amp; &quot;myvideo.mp4&quot;)

'        Bot.BotSendSticker(True, msg.ChatId, File.DirApp &amp; &quot;/&quot; &amp; &quot;mysticker.webp&quot;)

'        Bot.BotSendContact(msg.ChatId, &quot;+32496000000&quot;, &quot;Alain&quot;)

'        Bot.BotSendChatAction(msg.ChatId, ABT.CHATACTIONTYPE_TYPING)

'        Bot.BotSendLocation(msg.ChatId, 50.8492, 2.8779)

'        Bot.BotSendVenue(msg.ChatId, 50.8492, 2.8779, &quot;my venue&quot;, &quot;Grote markt 1&quot;)

Bot.BotSendVoice(True, msg.ChatId, File.DirApp &amp; &quot;/&quot; &amp; &quot;telegram.ogg&quot;)

'        Dim keyb As ABTReplyKeyboard
'        Dim rows As List
'        rows.Initialize
'        Dim tmpRow As ABTInlineKeyboardRow
'        tmpRow.Initialize
'        tmpRow.AddButton(&quot;test button&quot;, &quot;http://one-two.com&quot;, &quot;&quot;, &quot;&quot;)
'        rows.Add(tmpRow)
'        keyb.InitializeAsInlineKeyboardMarkup(rows)
'        Bot.BotEditMessageTextEx(msg.ChatId, msg.MessageId, 0, &quot;Extended test&quot;, ABT.PARSEMODE_HTML, False, keyb)

Dim rkeyb As ABTReplyKeyboard
rkeyb.InitializeAsForceReplyKeyboard(False)
Bot.BotSendMessageEx(msg.ChatId, &quot;some test: reply please&quot;, ABT.PARSEMODE_HTML, False, False, 0, rkeyb)

'        Dim rkeyb2 As ABTReplyKeyboard
'        Dim rows2 As List
'        rows2.Initialize
'        For i = 1 To 100
'            Dim tmpRow2 As ABTKeyboardRow
'            tmpRow2.Initialize
'            tmpRow2.AddButton(&quot;Press me&quot;)
'            rows2.Add(tmpRow2)
'        Next
'        rkeyb2.InitializeAsReplyKeyboardMarkup(rows2,False, False, False)
'        Bot.BotSendMessageEx(msg.ChatId, &quot;some test: press the button&quot;, ABT.PARSEMODE_HTML, False, False, 0, rkeyb2)

'        Dim rkeyb3 As ABTReplyKeyboard
'        Dim rows3 As List
'        rows3.Initialize
'        Dim tmpRow3 As ABTInlineKeyboardRow
'        tmpRow3.Initialize
'        tmpRow3.AddButton(&quot;Show image&quot;, &quot;&quot;, &quot;showimage&quot;, &quot;&quot;)
'        rows3.Add(tmpRow3)
'
'        rkeyb3.InitializeAsInlineKeyboardMarkup(rows3)
'        Bot.BotSendMessageEx(msg.ChatId, &quot;some test: press the button&quot;, ABT.PARSEMODE_HTML, False, False, 0, rkeyb3)
End If
If update.hasCallbackQuery Then
Dim cquery As ABTCallbackQuery = update.GetCallbackQuery
Log(&quot;CallbackQuery: &quot; &amp; cquery.data)
Select Case cquery.Data
Case &quot;showimage&quot;
Dim msg As ABTMessage = cquery.Message

Bot.BotSendPhotoEx(True, msg.ChatId , File.DirApp &amp; &quot;/&quot; &amp; &quot;myphoto.jpg&quot;, &quot;A new photo of darth vader!&quot;,False, 0, Null )
Bot.BotSendLocation(msg.ChatId, 50.8492, 2.8779)
Bot.BotEditMessageText(msg.ChatId, msg.MessageId, &quot;&quot;, &quot;Shown&quot;)
End Select
End If
If update.hasInlineQuery Then
Dim ciquery As ABTInlineQuery = update.GetInlineQuery
Log(&quot;InlineQuery: &quot; &amp; ciquery.Query)
If ciquery.Query = &quot;loc&quot; Then
Dim lstResults As List
lstResults.Initialize
Dim myanswer As ABTInlineQueryResult
myanswer.InitializeAsLocation(&quot;1&quot;, 50.8492, 2.8779, &quot;Your location&quot;)
lstResults.Add(myanswer)
Bot.BotAnswerInlineQuery(ciquery.Id, lstResults)
End If
End If
If update.hasChosenInlineResult Then
Dim ccresult As ABTChosenInlineResult = update.GetChosenInlineResult
Log(&quot;ChosenInlineResult: &quot; &amp; ccresult.Query)
End If
End Sub

Sub Bot_AsyncSendReceived(methodType As String, callbackId As String, success As Boolean, asyncObject As ABTObject)
Log(&quot;Async method: &quot; &amp; callbackId &amp; &quot; &quot; &amp; methodType &amp; &quot; &quot; &amp; success)
If success And asyncObject &amp;lt;&amp;gt; Null Then
If asyncObject.objectType=&quot;ABTMessage&quot; Then
Dim message As ABTMessage = asyncObject
Log(&quot;Async callback: &quot; &amp; message.MessageId)
End If
End If
End Sub

Sub JobDone (Job As HttpJob)
Log(&quot;JobName = &quot; &amp; Job.JobName &amp; &quot;, Success = &quot; &amp; Job.Success)
If Job.Success = True Then
Dim fSave As OutputStream = File.OpenOutput(File.DirApp, Job.tag, False)
File.Copy2(Job.GetInputStream, fSave)
fSave.Close
Else
Log(&quot;Error: &quot; &amp; Job.ErrorMessage)
End If
Job.Release
End Sub

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B4J: ABMaterial Public 1.06/Donators 1.07 now released

The public version 1.06 of ABMaterial is now available from the B4J website!

Some highlights on this public release:

Theme and controls have a Colorize() method to quickly change a theme
Getting more out of the Theme system. Just by using the one single line in B4J, theme.Colorize(myColor), you can change the base color of ABMaterial. You can of course still tune it manually.

Colorizing a theme in one line in ABMaterial

ABMDataTimeScroller
New component to let the user choose a date through a scroller.  Can be used to get the date, the time or both. See the demo for more.

The DateTime Scroller of ABMaterial

ABMDateTimePicker
Alternative component to let the user choose a date/time.  The date can be picked on a calendar, the time on a clock. See the demo for more.

The Date picker of ABMaterial

The Time picker of ABMaterial

Speed gain by using minified versions of the javascript/css files
This is just the first step in speeding up ABMaterial and the user experience both on a desktop and a mobile device. I continue searching for methods to make ABMaterial even faster!

Read the README1.06.TXT for the full release notes.

Download ABMaterial Public version 1.06

Donators will receive an email with the download link to ABMaterial 1.07 containing two new controls, ABMEditor and ABMSocialShare.  A optimized TreeView and Google Analytics support is also included!

Happy programming!

Alwaysbusy

Click here to Donation if you like my work