Tutorials & Examples

Android development starts here. Please do not post questions in this sub-forum.

User Password Security

A couple of good advices, especially for beginners.

 
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Creating a Prototype Mobile App Using JQuery Mobile

I have been working on a tool to create a prototype app using JQuery Mobile inside B4A. Currently the only way to create a prototype is via code. You can later distribute this prototype as an apk...
 

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  • add site.png
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  • register.png
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  • sites.png
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World Time - 7 segment digital clocks x 6



The attached project creates 6 x digital clocks (simulating 7 segment display). It will display the default time of your device on all 6 the clocks when the app is launched. Click on...
 

Attachments

  • DigitalClockWorld.zip
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make your app more flexible AND/OR compatible with ios (b4i)

Here's a little sample skeleton for using classes vs activities and making your app more compatible with b4i )

It's more flexible (i.e. create multiple "pages" of the same form, a good example...
 
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libGDX and Parallax (scrolling) background with multiple layers

Hi.

This is example with two simple classes "ParallaxLayer" and "ParallaxBackground".
It help us to make scrolling backgrounds very easily in just few lines of code and
"unlimited" number of...
 
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Writing good documentation

When you finally finish your gee wiz killer app and want to write the documentation for it explaining how to use it, there are some things you need to consider.

First, find someone with no...
 
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Arduino ADK Programming

Introduction

This tutorial deals with connecting the Arduino to your PC and ensuring that we can run programs on it. It includes a brief description of the programming language for the...
 
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Parse HTML code

Here is my module to parse HTML code, tag by tag.
It's specific to my needs, but you can alter it to suit specific tags. If you need help, don't hesitate to ask.
As a warning, I probably didn't...
 
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Full Android 4.x UI

Hi,

In the past creating a UI in B4A annoyed me a lot, not because of a bad designer but the lack of nice UI components. With the StdActionbar and some AH libraries it all got better and it...
 

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  • ui_actionwithpager.png
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  • ui_actionbar.png
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  • ui_drawer.png
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  • ui_main.png
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Fancy Code

Just like the clothes you wear, the code you write will also reflect your personal style.
Let's get fancy, shall we?
B4X: 
'Ugly:
     Dim validation As Boolean
     Dim sum = 1 + 1 As Int...
 
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LoadBitmapSample -- How Well It Works

I thought I'd provide an interesting look at how well LoadBitmapSample works.

My current Game App that I'm working on generates a Release APK of 10MBytes in size.
The App has the following...
 
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Make your app compatible with Android 5.0 devices

This is an old thread. It is not relevant if you are using newer versions of B4A.

In order for your current applications to run properly on Android 5.0 devices you need to:

1. Compile your...
 
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How to use ABPhysicsEngine and GameSprite View together

Hi

I would like to share with you this small example on how to use ABPhysicsEngine and GameSprite View together.

I would like to thanks the authors for those greate libraries...
 

Attachments

  • theProject.zip
    145.3 KB · Views: 801
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Game Physics: Gravity

Game Physics: Gravity

In this tutorial I will explain and exemplify through a simple "runner" game how to apply physics to any B4X object.
May it be a Panel, a Label, an ImageView...
 

Attachments

  • Sunset Run.zip
    22.7 KB · Views: 1,462
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Running your apk as an extension on Google Chrome

I have just found this out and its such a marvel to share. These are the steps for a MS-Windows install

Step 1
  1. Download the ARChon runtime from...
 

Attachments

  • extensions.png
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Rapid Debugger

Basic4android v3.0 includes a new debugger named rapid debugger.



The rapid debugger is a very sophisticated debugger with...
 
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DialogView: A complete walk-through guide

Introduction

Since we discovered b4a I looked for a flexible and developer friendly dialog library with an extensive and versatile object model. Unfortunately I could not find...
 
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A Binary Clock

Noting other than the B4A core lib required...
 

Attachments

  • BinaryClock.zip
    13.8 KB · Views: 701
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BetterSlidingPanels - Nice sliding panels with page indicator

Based on Erels SlidingPanels example I created another version which is a bit more "touch friendly".

My changes:

  • Move panels while touching the screen and moving your finger...
 

Attachments

  • BetterSlidingPanels.zip
    13.9 KB · Views: 4,717
  • screenshot-1319099154643.jpg
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Torch plus Morse code from the Flash and the Vibrator

The attached project has a dual purpose:
1. Send Morse Codes with the camera flash
2. Serve as a Torch

The Morse Code functionality might be useful when you are lost in mid ocean and need to...
 

Attachments

  • JHSflashMorse.zip
    84.4 KB · Views: 1,366
  • morseCode1.zip
    2.8 KB · Views: 1,123
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