Tutorials & Examples

B4A v6.80 adds several new features related to the ability to format rich strings.

CharSequence is a...

 

Please use XUI2D for new games: https://www.b4x.com/android/forum/threads/xui2d-example-pack.96454/

Spoiler

BitmapCreator is a relatively new cross-platform class for low level...

 

Starting from Android 7 we can extract more information about the satellite navigation status.
GPS is the first satellites system (the American system). There are several more systems now...

 

When I started again developing in B4A, I looked around my developed desktop applications to make something similar, as I will know what the result should be.

I choose my small attendance program...

 

HeartRateMonitor class searches for peripherals with the heart rate service (0x180D).

Once a peripheral device is found and connected then a notification is set for the heart rate measurement...

 

Not sure how many developers are familiar with the list of recent subs:

You can open it with Alt + N.
It is very useful...

 

The purpose of this framework is to allow you to easily add different types of charts to your projects.
The current version supports pie charts, line charts and bar charts.

The framework is...

 

Google has changed their policy regarding the following permissions:
READ_SMS, SEND_SMS, WRITE_SMS, RECEIVE_SMS
READ_CALL_LOG, WRITE_CALL_LOG, PROCESS_OUTGOING_CALLS

Only the default phone or...

 

As explained in this tutorial all store apps will soon be forced to target the latest SDK.

This means that we can no longer rely on the OS backwards compatibility features and need to...

 

A lot of developers like me use php as the backend component on a server to communicate with B4x apps. My intention is to create a thread with some "How to's" and best practices. Please feel free...

 

This guide is obsolete ! It is no more updated.
Please use the B4X Booklets.

A User's Guide in pdf format is available here : www.b4x.com/android/files/UserGuide.zip

This...

 

Don't use this. SimpleMediaManager is 100 times more powerful: [B4X] SimpleMediaManager (SMM) - framework for images, videos and more

Downloading images with HttpUtils2 is quite simple...

 

During the introduction to Amir_RecyclerView (ARV), it was necessary to understand the basic relationships between data and display.

Spoiler: Standard Listview

ListView is a view group that displays a list...

 

I happened to come across a very well written, and absolutely beautifully illustrated, article on how to best use animation in UX. I thought the forum might appreciate it, so here’s the link...

 

Attached you find an example with a ScrollView with a Panel higher than the screen.

The layouts are designed in the Designer, not in the code.

There are 2 layout files:
- Main with the...

 

One of the challenges that developers of any non-small Android app need to deal with, is the multiple possible entry points.

During development in almost all cases the application will start from...

 

See here: https://firebase.googleblog.com/2018/09/handle-fcm-messages-on-android.html?linkId=57036840

There are 3 types of messages you can send combined with your app's state (fore- or...

 

This solution is compatible with B4A, B4J and B4i.

Up until now there were two ways to send emails:

1. Using the default mobile app which required the user to actually send the message...

 

Starting from Android 5 (API 21) there is better support for kiosk applications.
Kiosk applications = applications that...

 

When you join a forum you have to define a username and type in your email address and a password. After that you receive an email to finish the registration. Today I want to show the process how...