Tutorials & Examples

Johan Schoeman · Apr 6, 2015

See the attached project. It uses a library that wraps a project that you can find here. There are files in the Objects/res/drawable and Objects/res/values folders that this...

Kevin · Jan 2, 2014

I recently ran into some issues after an update to my Galaxy S3 and after seeing a related post, I decided to write this quick tutorial. I didn't see information on this elsewhere in the forum...

wonder · Apr 3, 2015

Hi!

Since I've been messing around with trigonometry this week, I decided to give you guys an analog clock example. Enjoy!

B4X:

#Region  Project Attributes
    #ApplicationLabel: Analog Clock...

Johan Schoeman · Jul 25, 2014

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...

Johan Schoeman · Mar 27, 2015

Lib files are in the /files folder

Jaames · Mar 7, 2015

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...

Gianni4Forum · Mar 30, 2015

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...

keirS · Feb 27, 2015

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...

Erel · Jun 18, 2013

A video demonstrating several common programming mistakes:

Johan Schoeman · Mar 21, 2015

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...

Johan Schoeman · Mar 20, 2015

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

Johan Schoeman · Mar 20, 2015

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...

JhoeyBoy · Mar 13, 2015

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...

biggiu · Mar 5, 2015

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...

agraham · Mar 23, 2013

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...

palmaf · Mar 6, 2015

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...

Johan Schoeman · Feb 28, 2015

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...

rfresh · Apr 22, 2012

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

Thanks...

Shadow&Max · May 1, 2014

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...

iatall · Feb 23, 2015

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...

Tutorials & Examples

Show only:

Another Analog Clock

Attachments

Android 4.2+: ADB using USB & Developer Options

Analog Clock with Sound

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Panel Blinking

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Round Button - FunWithRoundButtons

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[Inline Java] Get The Method Name

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Async task help

How to Find a Wooly Mammoth Part 1 (Extending the B4A List object functionality using inline Java)

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[video] Common mistakes

Flip 3D View

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Cryptography - MD5 & SHA-1 (inline java code)

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imageManipulation (with inline java code)

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SMS Incoming & Reply Separation

SQLite, remote connection

Arduino ADK Coda

Multiple layout

Library (JAR) interface using inline Java code and "direct calling"

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[Wish] Code folding

Graphical Life Cycle of a B4A Activity

background voice recording

Tutorials & Examples

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