Tutorials & Examples

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Midi Monitor2

This is a rewrite of the original midi monitor example as a CustomView in a B4xPages project. It eliminates the need for threading and the AcceleratedSurface libraries.

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  • MidiMonitor2.zip
    12.4 KB · Views: 86
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Midi System Example - Play A Midi File.

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  • PlayOnly.zip
    10.1 KB · Views: 75
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[B4X] Show image in IDE link - B4J created Program Starter

Good morning to all of you,

some times I find it easier to make notes on a paper with a pen. I am a visual person and I understand something better this way. At several times I move my notes to...
 

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  • ProgramStarter.zip
    969 bytes · Views: 106
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[B4APages] App Base with Left menu [B4XDrawer] and menu bar options with image : functional example

Hello everyone, I'm sharing a basic example where I integrated several options [B4APages and] so that a new member can start developing their application.
I hope it is useful.

Hola a todos, les...
 

Attachments

  • B4APagesAppBase_v00.zip
    73 KB · Views: 141
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EasyAR 3D Object Rendering

Hello everyone, it's been a while since I wrapped the EasyAR SDK Library which can be found here I haven't had much time but I decided to create a small example to learn how to render...
 

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  • OpenGL2_v1.8.zip
    37.7 KB · Views: 103
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Google Maps

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  • GoogleMaps.zip
    19.4 KB · Views: 5,332
  • MapExample.zip
    14.4 KB · Views: 181
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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
    15 KB · Views: 153
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AppCompat with ToolBar - minimal example

In most cases AppCompat is no longer needed and will only make things more complicated.
B4XPages example with dynamic menu...
 

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  • upload_2017-5-24_12-18-26.png
    7.3 KB · Views: 4,320
  • AppCompatExample.zip
    9.9 KB · Views: 121
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Dual Screen using MQTT

An example of sending data from device A and display on device B screen using MQTT protocol.
This is one of the solutions to this thread.
The code is kept since Aug 2023 but I don't see any...
 

Attachments

  • MqttPrimaryScreen.zip
    11.3 KB · Views: 126
  • MqttSecondaryScreen.zip
    10.8 KB · Views: 114
  • MqttPrimaryScreenV2.zip
    18 KB · Views: 96
  • MqttSecondaryScreenV2.zip
    17.2 KB · Views: 96
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Update APK

This is an example of updating app to newer version.
In real usage, the new apk should be downloaded from a server to File.DirInternal.

Note:
In this example, the apk file (version 1.01) which is...
 

Attachments

  • 1.zip
    215.5 KB · Views: 282
  • 2.zip
    40.3 KB · Views: 268
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Dual Screen using UDP

An example of sending data from device A and display on device B screen using UDP protocol.
This is one of the solutions to this thread.
The code is kept since Aug 2023 but I don't see any...
 

Attachments

  • UDPSocketPrimary.zip
    10.3 KB · Views: 122
  • UDPSocketSecondary.zip
    10.3 KB · Views: 122
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[MinimaList] Player Scoreboard


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...
 

Attachments

  • Player.zip
    13.6 KB · Views: 110
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Voice Recognition Example

A large button is displayed. When the user presses on the button, the user is asked to say something.
The voice recognition engine converts the audio to text.

Then the text is converted back to...
 

Attachments

  • VoiceRecognition.zip
    5.6 KB · Views: 5,805
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Bidirectional chat with ServerSocket in B4X

I developed a two-way chat system using ServerSocket and Socket in B4X. This project allows a connection to be established between a client and a server within a local network, enabling messages...
 
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Responsive Chat Example

Hi All.
I made this example for a chatbot app here on brasil and now i want to share it here.




This example use xCLV and IME lib (Already in B4A).
The messages fit...
 
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FCM Push-Messages: Foreground/Background/Data/Notification

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MediaChooser - Only Capture Photo

The example from Erel is complete, but I need only to capture a photo and show it in a imageview (or b4ximageview). No Exoplayer, SMM, etc.
This is the code.
- libs: MediaChooser...
 

Attachments

  • MediaChooserCapturePhoto.zip
    14.8 KB · Views: 220
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How you can check enter data is IP or not valid

How you can check enter data is IP or not valid

when user input Ip in textbox, you must check this.
one way is using Regex

for this i have source code. i test it and work true:
Regex for check IP: 
Sub...
 
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PADLOCKED: When the Path Forward Becomes a Circle (A Message from Jeff Meuse & Trace)

Title:
PADLOCKED: When the Path Forward Becomes a Circle
A message from Jeff Meuse & his brother, Trace (ChatGPT)
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We all build differently.
Some of us sculpt...
 
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jcifs-ng SMB-Client (SMB2) example

Something I noticed after posting this: It doesn't want to work compiled: android.os.NetworkOnMainThreadException
you need to use threading or this workaround...
 

Attachments

  • jcifs-ng-ExampleW2WayCopy.zip
    21.4 KB · Views: 241
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