Tutorials & Examples

(NFCRW has been Updated !)
In this project You can scan and write your Ndef or NFC tags Very simply,
(This project is for B4XPages)

The Principal codes ...

 

NFC v2.00 adds support for low level access to the NFC features. This allows reading and writing from NFC tags.

The NFC library provides three features:
- Reading Ndef tags based intent filters...

 

This is a calendar manipulation class based on @DonManfred 's explorations which you can find at...

 

The Launcher icon always shows as 48x48 dip, but when translated into pixels on screens with different resolutions, this can become 48, 72, 96, 144 or even 192 pixels square. You should ideally...

 

This demo is a slight modification of @klaus's B4XPages SQLiteLight2 demo...

 

Hello Community!
This is the second UI Example by XTools Group and more examples are on the way
You can find our first UI Example Here :

[UI] [B4A] Camping App UI Example + Source...​

 

Tasker is a pretty legendary app that allows you to automate everything on your phone:
https://play.google.com/store/apps/details?id=net.dinglisch.android.taskerm

Developer reference...

 

This is for advanced users only. Please see Erel's important cautions about using this approach below.

This post and examples demonstrate how to extend B4XPages to allow orientation...

 

The attached project is a port of this example: [Server] Google Charts service to Basic4android.
A similar example with more charts is available here...

 

Here's a small example how to show/share file(s) from the internal storage (benefits: no permissions are needed)

What it does:

- creates a folder called "shared" (under File.DirInternal)
- this...

 

Hello,

Maybe this can be useful for others.
You can get the exact screen diagonal size (in inch) using the following simple routine.

Sub GetDevicePhysicalSize As Double
#If JAVA
import...

 

Not long ago Don provided example Provider Requester Activity based communication via Intents.

Although that Activity version had some hints in it for Service based version, it took several...

 

In debugging my current app I needed to reset back to basics to debug some code. I ended up creating this simple app which contains all the basics of a long-running background service (taken from...

 

I save the SQLite DB used by my apps in the directory corresponding to File.DirInternal, which is the app's exclusive space.

This, however, prevents you from accessing the DB from outside...

 

the huawei map kit will hopefully be integrated into the B4A soon..

i have opened a topic here, and huawei teams will provide support...

 

B4XCollections v1.13 includes a new sorting feature named B4XComparatorSort.
This feature allows sorting using a custom comparator class.
The comparator class is a class that you create and it...

 

Last weekend I migrated my XAMPP test environment (Apache/PHP/MySql). It came with PHP 7.x. Yesterday I wanted to test one of my Apps using AES and Mcrypt for it in PHP but it didn't work no more...

 

You download a project from the forum and when you run it, you get an error message similar to:

B4A Version: 10.2
Java Version: 8
Parsing code.    (0.11s)
Building folders structure...

 

Sample 1

A wrap for this Github project. Posting:
1. B4A sample project
2. Java Code - check the code inside the wrapper vs the Java sample code.
3. B4A lib files

A nice...

 

Hello team,

If you recieved an email about submiting Data Safety form at Google Play Console and your apps using Admob, you can watch this video to guide you.

More infos you can find...