Tutorials & Examples

Android development starts here. Please do not post questions in this sub-forum.

[MinimaList] Player Scoreboard

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This example is a response to this thread.

You can click the labels to edit Player's name and score.
The results will be showed after click on OK.

Player's name cannot be...
 

Attachments

  • Player.zip
    14.5 KB · Views: 146

Using Camera2 with Zxing for live scan of 1D and 2D barcodes

I have used @Erel's sample project from here:


Have added a timer to get the preview bitmap every...
 

Attachments

  • core-3.3.2.zip
    493.6 KB · Views: 1,370
  • Camera2.zip
    16.5 KB · Views: 1,335
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Android 14 / targetSdkVersion 34 and Services

B4A v13.0+ should be used with targetSdkVersion 34+.

Android 14 continues the longtime trend of making services less flexible and more difficult to use (converging to iOS background tasks...
 
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[B4X] AS BottomActionSheet - Small Icon


In this example I will show you how you can add a small icon to an item and customize it to your needs.

A...
 

[B4A] Extended example of ContactsUtils to place shortcuts to contacts on the home screen

For some time now, it has not been possible to place short links to contacts on the home screen via the Contact Apps. Instead, the selected contact is always placed as a widget. However, since I...
 

Attachments

  • contact linking.zip
    10.6 KB · Views: 172

[B4X] AS Settings - ColorChooser Property


This setting allows users to select a color. For example, to change the main app color, which is a premium feature in...
 

Attachments

  • AS Settings ColorChooser Example.zip
    179.2 KB · Views: 158
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TessBaseAPI ocr

hello, a small library of TessBaseAPI "tesseract4android-2.1.0" Ocr, you need to download tesseract4android-2.1.0.aar and junit-4.4.jar as Depends, for the tessdata languages...
 

Attachments

  • tess4.1.zip
    24 KB · Views: 746

Android Live Wallpaper tutorial

The user can set live wallpapers by long pressing on the home screen and choosing Wallpapers - Live Wallpapers.
Creating a live wallpaper is not too difficult.
A service is responsible for...
 

Attachments

  • WallpaperExample.zip
    18 KB · Views: 219
  • LiveWallpaper.zip
    8.9 KB · Views: 213
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[B4X] Localizator - Localize your B4X applications

Localizator is a cross platform solution for strings localization.

The strings are defined in an Excel workbook.

SS-2016-07-07_17.00.16.png


They...
 

Attachments

  • B4J_LocalizatorExample.zip
    5.7 KB · Views: 1,659
  • ExcelWorkbook.zip
    7.1 KB · Views: 2,113
  • B4i_LocalizatorExample.zip
    6.1 KB · Views: 1,334
  • Localizator.bas
    4.4 KB · Views: 2,075
  • B4A_LocalizatorExample.zip
    11.6 KB · Views: 1,632
  • B4J_LocalizatorConverterSource.zip
    10 KB · Views: 863
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Tips or Tricks for using Android Emulator

I want to share a few tricks when using the Android Virtual Device or Emulator.

1. Increase font and icon size
Go to Settings (gear icons) from drawer/desktop/slide down menu and choose...
 
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[B4XPages] Admob Example

Check this other excellent example from @Jack Cole.

To help the new members to make money with B4A, I tried to compile all the relevant Admob code (except mediation) of the...
 

Attachments

  • b4xpages_admob_example6.zip
    57.8 KB · Views: 245
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Running B4A and B4J under Linux with wine - fully functional

I have just managed to install B4A and make it run (including B4ASdkManager) on my Xubuntu 18.04 and, since I have lost two days and one night putting things together, I thought it will be a good...
 
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[B4X] Simple audio call over internet with own TURN/relay server

Attachments

  • [B4A] Socket.io Simple Call Example.zip
    116.8 KB · Views: 1,298
  • [B4i] Socket.io Simple Call Example.zip
    111.7 KB · Views: 999
  • [Server] Socket.io Simple Call Example.zip
    2.4 KB · Views: 1,234
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Introduction to the libGDX library

Introduction to the libGDX library

What is libGDX ?

libGDX is a game engine. As we saw in the first tutorial, a game engine provides a framework to create...
 
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B4A-Bridge source code

B4A-Bridge is made of two components. One component is running on the device and the other is embedded in the IDE.
The device side is the server side. It waits for connections and when a...
 
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Offline Continuous Speech Recognition

This is a very old project which is unlikely to function correctly on newer versions of Android. The link to the project should still be active and if you want to use it for reference to...
 

Attachments

  • copyright.txt
    1.5 KB · Views: 2,088
  • Library.zip
    403.1 KB · Views: 1,083
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Handle the soft keyboard with the IME library

Android has very good support for custom input method editors (IMEs).
The downside for this powerful feature is that interacting with the soft keyboard can be sometimes quite complicated.

This...
 

Attachments

  • IME_Example.zip
    14.8 KB · Views: 389
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background voice recording

Hi..
I have created one activity that contains AudioRecorder using audiorecorder library.
i want to start and stop recording from background using service.
timer is not working to stop...
 

[Closed] Solutions to "The filename or extension is too long" error

This issue was solved with the B4A 13 Beta 6.

I saw many users (include me) with the problem "The filename or extension is too long", when try to compile the project with...
 
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Align the AES encryption and decryption results between B4X and the .NET platform

A C# friend who uses MAUI to develop Android apps, but the friend works well, so I recommend him to use B4A, and he got started after a few hours of basic tutorials. He implemented a way to make...
 

Attachments

  • AES B4X and .NET is the same.zip
    142.4 KB · Views: 228
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