Tutorials & Examples

Updated implementation, based on B4XPages of https://www.b4x.com/android/forum/threads/android-bluetooth-bluetoothadmin-tutorial.14768/#content.

The code is much simpler...

 

Hi

Here is a tutorial that shows the steps of how to make an Android connection to MS SQL Server using jRDC2.

Download tutorial here:
Attached the Mobile...

 

In this example we add a MiddleButton that is larger than the internal one and is outside the TabMenu.

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Starting from B4A v5.0, B4A-Bridge over Bluetooth is no longer available. You can use B4A-Bridge over wifi or USB debug mode to connect the IDE to a device.

By creating a mobile hotspot you can...

 

Please test scanning of your NFC enabled credit card using the APK in the download link below. Please ensure that you have enabled NFC on your cell/device before you do a scan - the...

 

Hello hope your'e well.
Apps are getting more and more complicate and to work with the user needs a manual. This examples shows how you can add an help dialog to your B4XPages Project. The help...

 

It's time to learn how to use MQTT: https://www.b4x.com/android/forum/threads/59471/#content
It is simple and powerful. In most cases MQTT is the best solution for low level networks. Low...

 

Camera2 library is based on the Camera2 API introduced in Android 5 (API 21).
It is designed to work together with CamEx2 class.
It is supported by B4A v7.3+. The library will be included as...

 

Hi. Please place any new questions or comments about the B4X Browser here.

 

Hello
This is an example of how to back up and restore the SQL Lite database as the database produces three files with three extensions
with the following extensions 'db.db'...

 

For the First I said Thank Too Much For Great Mr.Errel That my Inspirator, StarDust and All Of member that i can't say person by person, i wish yours appologize of my bad english, this my first...

 

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...

 

android 12

 

This is a B4i and B4A example, which demonstrates various external files related tasks.

The behavior is not exactly the same as the platforms capabilities and behavior...

 

There are many ScrollView examples on the forum, I made a summary of them for my own use and I think it would be interesting for others.

Creating a table view based on ScrollView...

 

Hi everyone,

I posted a thread long ago about the audio/video calling over the internet. Here is a simple example of how you can call almost (will discuss below) realtime.

Why only a...

 

Requires B4A V9.90 or higher.

Hello fellow B4X developers.
Here is my example of using a broadcast address to automatically find another devices IP address on a network, then to use that IP...

 

If you want to check if the application is running on a Chromebook (for example to do some specific GUI reconfiguration to run in a resizable Window), you can use the following routine.
Hope it...

 

I had to deal with a database format transformation problem from Firebird to SqliteDb
I want to share my experience because I've already seen some users who asked questions about Firebird...

 

I've just added a speech to text facility to my note taking app using

SpeechToText - Continuous Offline Voice Recognition

This is a wrapper of Acephei VOSK , With this, you can add continuous offline speech recognition feature to your application, NOTE: As it works offline the app should be complied with the voice model. It will increase the app size by 30-40Mb. The accuracy depends on the voice model. You can...

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and text...