Tutorials & Examples

Remote Database Connector (RDC) is a middleware web server that allows you to easily connect your Android app to any type of remote database server.
Usually you will use it with a database...

 

(This is the first of a small series of code-based tutorials that I will post regarding OpenCV for B4A. I will try to focus mainly on how to use OpenCV in B4A, tips, best practices...

 

Dear,

I've read there are two "kinds" of SMS: normal text SMS and Data SMS: http://developer.android.com/refere...ager.html#sendDataMessage(java.lang.String...

 

While I'm new. I can not find a full and detailed example. How to make a beautiful effect for button when I click button. I like using a gradient fill please. I did not use in my work designer...

 

Basic4android v1.8 introduces a new tool named Manifest Editor.
Every Android application includes a file named AndroidManifest.xml.
This is an XML file that describes the application for the OS...

 

HttpUtils2 was replaced with OkHttpUtils2: https://www.b4x.com/android/forum/threads/okhttp-replaces-the-http-library.54723/
Both libraries are included in the IDE.


HttpUtils2 is a...

 

I am going to try and wrap this (CircularButton) from here
https://github.com/Alexrs95/Circula...alexrs/circularbutton/lib/CircularButton.java
Found it on the android-arsenal.com website...

 

I noticed this being asked a few times so I thought I'd share the version I've created.

This implementation requires that you have a server with PHP and MySQL. I am by no means a PHP or MySQL...

 

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...

 

By default, when there is an uncaught exception the program will show a message box with the error title and the user will be asked whether they want to continue or not.

There are several...

 

Probably not the most elegant way to do this calendar but it is working. It displays 42 days and will "grey out" the days of the previous/next month within the calendar month being displayed. The...

 

if you have android app with firebase notf.
this app for easy testing.

 

See attached project with inline Java code to create round imageviews. You only need library JavaObject V2.01 to be enabled.

 

The #AdditionalJar module attribute (introduced in B4A v3.80) allows us to reference external jars.
With the help of JavaObject it is now possible to integrate third party jars without a wrapper...

 

I have moved all my projects from Eclipse to Android Studio, so decided to write how I have done for generating JAR and XML file for Basic4Android.

1. Create new project - File>New Project or if...

 

I found some code on the internet that works with a standard ListView, an example is attached. I use ListView's all the time with large lists >3000 items and I will find this one useful.

It uses...

 

An improved version, based on CallSubDelayed is available here.
This example demonstrates how to work with more than one activity and how to pass information between the activities.
In...

 

The attached program displays the values of the different sensors:

It creates a PhoneSensors object for each type of sensor.
As you can...

 

The MediaPlayer is used to play audio files.
MediaPlayer supports formats like: mp3, midi, wave and ogg. The full list is available here: Android Supported Media Formats | Android Developers...

 

Edit: please see the updated tutorial: https://www.b4x.com/android/forum/threads/62488/#content

Starting from v2.70, the visual designer supports custom views.

Note that the WYSIWYG...