Tutorials & Examples

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...

 

Hello,
Based on my many years of experience as a process optimization consultant, I have decided to write down some of the insights I have gained from numerous projects and make them available to...

 

Check Elevate UI Demo 3 at post#6

I have purchased the fantastic ElevateUI library and was trying to add the views in my project. Since the library comes without any demo or manual, I was...

 

[B4X] [XUI] AS AppSummary

This library is used to describe the 3 or 4 most important functions of the app to the user the first time they use it, as an onboarding measure. The library can also be used as an update log if you have released a major update and want to inform the user which new things are now in the app. I...

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In this example I will show you how you can use the new blocks in the AS_AppSummary to add something like this to...

 

hello
if you have a panel and you want scroll this panel then you use this source.

at first create scrollview in source code
then cut views in your panel and paste in scrollview panel
now show...

 

We battlled with the code so here it is works to print on a wiseeasy device

#Region  Project Attributes
    #ApplicationLabel: B4A Example
    #VersionCode: 1
    #VersionName...

 

This is an example of creating a custom parser for...

 

When I was writing the b4xlib library, I encountered complicated steps, and I needed to decompress and compress the b4xlib file (zip format) frequently.

So I wrote this tool to automatically...

 

The GNSS library replaces the old GPS library. The GNSS library is available here: https://www.b4x.com/android/forum/threads/gnss-library-an-updated-gps-library.109110/#content...

 

[B4X] Supabase - The Open Source Firebase alternative

Supabase is an open source Firebase alternative. It provides all the backend services you need to build a product. Supabase uses Postgres database with real-time capabilities. Basically, supabase provides an interface to manage postgres database that you can use to create table and insert, edit...

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This is a very simple tutorial on how to use the storage file options.

Upload File...

 

This is an example of how some apps like file managers, antivirus and other apps that depends on access to DirRootExternal to create folders, create files and read files from the Root of the...

 

There are some examples on this forum for
1. saving Webview content as Bitmap,
2. creating PDF file using Printing library and
3. opening or sharing the PDF file to WhatsApp using...

 

[B4X] PocketBase - Open Source backend in 1 file

PocketBase was created to assist building self-contained applications that can run on a single server without requiring to install anything in addition. The basic idea is that the common functionality like crud, auth, files upload, auto TLS, etc. are handled out of the box, allowing you to focus...

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Please read the official documentation about deleting files in pocketbase...

 

[B4X] PocketBase - Open Source backend in 1 file

PocketBase was created to assist building self-contained applications that can run on a single server without requiring to install anything in addition. The basic idea is that the common functionality like crud, auth, files upload, auto TLS, etc. are handled out of the box, allowing you to focus...

www.b4x.com

If you develop with B4J with Pocketbase, then you simply enter the localhost address...

 

Here is a modified example where the web api server excepts XML payload.
Required latest WebApiUtils v3.05 and MiniORMUtils.

Change the URL to server

Private URL As String =...