Tutorials & Examples

Attached project demonstrates two ways to interface with a JAR file:

1. Using the JavaObject run method "directly"
2. Making use of inline Java code

For method 1 you need to make use of...

 

Examples of image processing

Click on any one of the displayed images to change to an alternate image.

Made use of Jpeg library by @agraham

See...

 

The attached project (with inline Java code) will list all the sensors on your device in the project's log.

 

The attached project will generate and solve Sudoku puzzles (9x9). The code to solve the puzzles with was adapted from here (converted to B4A). The code to generate Sudoku puzzles with comes...

 

This example loads a midi file and records an extra track from either the on board keyboard, or an external USB midi device.

Please be careful when saving files as the recorded track will be...

 

This example allows creation of loops on multiple tracks as they are played. Just like a drum sequencer. It demonstrates creating a midi sequence and tracks, and adding events and messages...

 

This example allows playing a midi file to an external USB device which you can select. It also allows delaying the messages send to the usb device so you can hear them at the same time as the...

 

Hi all,

My contribute to the community a USB Serial service, you can add more activitys...

If you like this please press "like"

Thanks

camolas

 

Hi all,

My contribute to the community a TTS service for 2 Activitys, you can add more activitys...

If you like this please press "like"

Thanks

camolas

 

This is an example of how to build an app and sent intents to your pebble.

 

Thanks for your help Erel!!! I greatly appreciate your timely assistance, this active forum, the B4A community, and B4A itself!!! Gregg

Here's the Manifest file that incorporates two Intents...

 

If you are lazy creating views "by hand" or you simply want a "form" depending on a MySql table take a look at this small app.

Type in the Database and Table Name and the IP-Address of the server...

 

I'm currently messing about with libGDX and will be using the Accelerometer for input. I borrowed some code from the web and B4A'd it. It includes device rotation, orientation, resolution, X, Y, Z...

 

This is an attempt to create a RPN calculator (Reverse Polish Notation - as per HP calculators). You can store (STO) and recall (RCL) values of register X. It will store and retrieve last value of...

 

Here another Slid Panel.
I use the Ultimate List View ( paid from Informatix ) to swipe control, but someone can adapt the gesture library.

In the first time no image will appear in background...

 

I am leaving this project here for now. The majority of the work has been done to extract the critical information of a QR code - it is reported in the text box to the right of the qr...

 

Hi all.

Here is a BAS module to do 5 card poker scoring. Its some ugly code but it works.

I have promised myself I was going to re-write this code for over a year but cannot seem to find the...

 

The attached project is an example using the XtraViews library.

If one of the classes in that library is called "MovieView" then let's play some animated GIF movies.


Have fun...

 

What am I doing wrong

oRst = SQL.ExecQuery2("SELECT * FROM Bustrip ORDER BY sort Asc WHERE bus = ?", Array As String (Main.find))

 

An example of using Listview.
Open and save dialogs.
Screen orientation.
Don't forget to twist.

Done on 7 inch tablet.
B4A 2.3