Tutorials & Examples

Panels that blinks vertically and horizontally. Changes color/button/label/or any view for that matter.

EDIT 14 Nov 2014
Added modification to original Sliding Panels project by @Erel in...

 

Lib files are in the /files folder

 

Hi, there is attachment with example on how to get the method (b4a function - sub) name using Inline Java.
This can be useful in many cases, especially for error reporting - debugging, but there...

 

Hi expert
i'm trying B4A coming from Appcelerator.
It is very fast and simply

I try to use a scrollview populated from a sqllite db cursor with many records
my scrollview is very slow when...

 

Given the following class and code someone new to B4A might expect a different result to the one which is actually produced by the following code and class definition.

The Pleistocene_Mammal...

 

A video demonstrating several common programming mistakes:

 

I came across the attached project here and thought it is quite nifty. It is a post by a B4A member (@Lyndon Bermoy )

Have added an additional imageview to animate a second image...

 

It only prints to the log. Change the "message" in Sub Activity_Create

 

Done just for fun...work through the java code and you can create various derivatives for yourself by changing some of the code in some of the methods - eg add code to pass...

 

Good Day!

I've test this code to retrieve sms message, from my samsung, and it works.

' ------------------------------------------------------
Sub Process_Globals
Dim sms_idkey As Long...

 

Hello.
I have the following problem: I can not find an example of code written to run a remote connection to a SQLite DB.
I used the DRC to connect to a DB MS-SQL.
I do not understand if the DRC...

 

Introduction

This final tutorial has some explanatory comments about the two programs running on the Arduino and the Android device. Those programs should be largely self-explanatory as...

 

I am trying to use the examples relating to layout or multiple panels . But all the files give me error "The value cannot be null" "parameter name: input Error File twolayouts1.bal: "I have read...

 

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...

 

It would be very handy if we could fold up our code on If Then statements.

Thanks...

 

Hi all...

I'm posting this in the hopes that it'll help anyone programming with B4A to understand the life cycle of an activity. I struggled with this a bit, and the graphical representation...

 

Hi..
I have created one activity that contains AudioRecorder using audiorecorder library.
i want to start and stop recording from background using service.
timer is not working to stop...

 

Please use timo's version and not the one attached below!

 

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.