Tutorials & Examples

B4A-Interpreter

I've made a B4A interpreter that runs B4A-Code on Android
to write easy B4A-test programs on my Phone.
To make an app only copy the source code back to the...

 

[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...

www.b4x.com

This is a very simple tutorial on how to use the CRUD options. A more detailed tutorial is coming soon...

 

B4A + B4i barcode reader.

Don't miss:

- #PlistExtra in B4i.
- Manifest code + #AdditionalJar in B4A

Depends...

 

Update 29/8/2018: i uploaded new version without FIREBASE to help who dont need

B4A is very good app to build Android app.
I want to use it built app same as Android Studio, so i make a...

 

p/s: i have uploaded patch file audio.xml

you must replace this file to your core library folder
(Exam: C:\Program Files (x86)\Anywhere Software\Basic4android\Libraries)

Thank @Erel and...

 

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...

 

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...

 

As you know, Map is a kind of list of pairs of data; each pair is composed of a key and a value which can be of any type.

An example that I believe can be useful:

You have a beautiful table...

 

[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...

www.b4x.com

This is a very simple tutorial on how to use the Realtime module. A more detailed...

 

Happy New Year!!!!
Here is a chat demo of FirebaseFirestore with Android, Windows & iOS

 

See attached project that you can use to make personalized QR codes with. Image that is superimposed over the QR code should preferably have a transparent background. You can do things like this...

 

This is a request from one of my subscriber. She is to develop an app to
1. Use Database to keep records
2. Add, Delete and Update DB
3. Create User Interface using any control available (UI)
4...

 

Hi all.
this example play Happy birthday to you music with beep. (Audio librarie)

Sub Globals
    Private lNotas As List
    Private lbNotas As Label
    Private tocando As Boolean
End Sub...

 

I have had some luck using JavaCV inline, here is how to do it:

Download this:
http://search.maven.org/remotecontent?filepath=org/bytedeco/javacv/0.11/javacv-0.11-bin.zip

Extract the .zip...

 

A code module to automatically generate SetLayout statements with percentage values.

It is more convenient to use than my example:
Create your layouts based on percentages...

 

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...

 

I have a very specialized POS application running on Android devices that would not qualify to be entered into the Play Store. These apps need to be updated whenever there are new features or bug...

 

A short description using the MFColorMatrix class from my MFLib.

A color matrix is a 4x5 matrix for transforming the color and alpha components of a Bitmap.
The definition of...

 

It wraps a tiny bit of this - just enough to show the clock. Thought it looked quite nifty...Have done nothing special to it other than painting the hands and the face a bit... Lib...

 

today i was in the requrement to write a search-routine in Database.
given was a table with lat an lon values. Goal was to find the nearest Entry.

Tablename: nw05
Fields: gidx (index), glat...