Tutorials & Examples

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

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

BinaryClock.png Noting other than the B4A core lib required...
 

Attachments

  • BinaryClock.zip
    13.8 KB · Views: 645
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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: 4,608
  • screenshot-1319099154643.jpg
    4.9 KB · Views: 5,172
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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: 1,275
  • morseCode1.zip
    2.8 KB · Views: 1,040
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Showing Google turn by turn

Hi,

Below some sample code to show directly Turn by Turn navigation instead of map:

Sub ShowNavigation (Latitude As String,Longitude As String)
'google place, just show map
Dim...
 
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.Net FileTransfer - Implement AsyncStreams Prefix mode

Attachments

  • FileTransfer-Desktop.zip
    81.2 KB · Views: 4,798
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Android 5.0 Information and Resource Thread

Android 5.0 Lollipop is a pretty big update hence the major version number upgrade.
I wanted to make a thread to combine Android 5 SDK related resources since it is such a big update.
At the...
 
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Another Analog Clock



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...
 

Attachments

  • AnalogClockB4A.zip
    125.8 KB · Views: 1,121
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Android 4.2+: ADB using USB & Developer Options

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...
 
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Analog Clock with Sound

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...
 

Attachments

  • analog.zip
    9.9 KB · Views: 1,274
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Panel Blinking

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...
 

Attachments

  • BlinkingPanelHorizontally V3.zip
    9.2 KB · Views: 751
  • BlinkingPanel.zip
    7.6 KB · Views: 755
  • SlidingPanelsUpDown V2.zip
    9.7 KB · Views: 731
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Round Button - FunWithRoundButtons

Lib files are in the /files folder
 

Attachments

  • FunWithRoundButtons.zip
    93 KB · Views: 1,235
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[Inline Java] Get The Method Name

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...
 

Attachments

  • GetTheMethodName.zip
    13.9 KB · Views: 684
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Async task help

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

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...
 

Attachments

  • Inline Java And Lists.zip
    2 KB · Views: 477
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[video] Common mistakes

A video demonstrating several common programming mistakes:


 
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Flip 3D View

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...
 

Attachments

  • Flip3DView.zip
    138.7 KB · Views: 1,224
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Cryptography - MD5 & SHA-1 (inline java code)

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

Attachments

  • Cryptography_MD5_and_SHA1.zip
    12.4 KB · Views: 1,448
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imageManipulation (with inline java code)



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...
 

Attachments

  • imageManipulation.zip
    132.9 KB · Views: 1,080
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SMS Incoming & Reply Separation

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...
 
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