Tutorials & Examples

This is the simplest of the examples and just loads and plays a midi file. It requires the Midi System Lib available here: https://www.b4x.com/android/forum/threads/midisystem.50106/ and...

 

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...

 

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...

 

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...

 

Installation instructions:

- Register your app in Google developer console: https://console.developers.google.com
You need to enable Google Maps Android API.
Then click on...

 

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...

 

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

 

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...

 

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...

 

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...

 

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...

 

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...

 

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...

 

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...

 

Erel made a fantastic example how to use Google's FCM Push-Messaging:
https://www.b4x.com/android/forum/t...-messages-firebase-cloud-messaging-fcm.67716/

To...

 

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...

 

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:

Sub...

 

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...

 

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

 

This tutorial assumes that you already have FirebaseAdMob2 implemented in your app.

Implementation is NOT tested in B4A. You can test it if you want.
If any of you...