Tutorials & Examples

(old) Google Maps Android v2 tutorial

• By Erel
• Dec 18, 2012

If you are using B4A v5.80+ then please follow this tutorial: https://www.b4x.com/android/forum/threads/google-maps.63930/#post-404386

GoogleMaps library requires v2.50 or above...

 

Attachments

• GoogleMaps.zip

  17.8 KB · Views: 11,594

Last edited: Feb 24, 2016

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EdditText Label Like SnapChat

• By Alexander Stolte
• Sep 29, 2017

Hello,

UPDATE

This version includes Multiline Support and Guaranteed functionality. The last version had a lot of bugs, that new example is more mature.

At the moment, I'm...

 

Last edited: Jul 14, 2022

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Creating a sticky service - long running background tasks

• By Erel
• Mar 7, 2013

Edit: Things have changed with newer versions of Android and new restrictions. Sticky services should not be used any more.

Background service example...

 

Last edited: Dec 9, 2018

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B4A -interpreter for Android / programming on the device

• By birnesoft
• May 27, 2014

B4A-Interpreter

I've made a B4A interpreter that runs B4A-Code on Android
to write easy B4A-test programs on my Phone.
To make an app only copy the source code back to the...

 

Attachments

• androidb4a.zip

  8 KB · Views: 753
• androidb4a2_7.zip

  7.3 KB · Views: 768
• B4AInterpreter0_3.zip

  354.4 KB · Views: 958
• B4Ainterpreter0_4.zip

  355.2 KB · Views: 674

Last edited: Jun 1, 2014

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Scrollview: Adding labels and setting their height automatically depending on the text(size)

• By KMatle
• Sep 16, 2017

This is just a simple example (and yes, there are others doing similar). You can modify this example it by using other colors, gradients, adding other views and so on to have a simple but good...

 

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Firebase Invites/ DynamicLink/ DeepLink [relationship between]

• By fredo
• Sep 15, 2017

Firebase has several extremely useful free server-based features for developers of mobile apps.

Spoiler: free?

The free "Spark Plan" is suitable for small business applications.​

...

 

Last edited: Sep 15, 2017

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Horizontal ScrollPage

• By Emme Developer
• Sep 7, 2017

Hi everybody!
I want to share this simple example of an HorizontalScrollView that works like ViewPager. Main difference between this and ViewPager is that HorizzontalScrollview has an only inner...

 

Attachments

• HorizzontalScrollPage.zip

  7.1 KB · Views: 643

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Android In-App Billing v3 Tutorial

• By Erel
• Jun 6, 2013

New version: GooglePlayBilling - In App Purchases

Spoiler: Old version. Not relevant

This tutorial covers the new API for in-app billing provided by Google.

The main differences between v3 and the previous...

 

Last edited: Mar 22, 2020

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Third party tool for screen recording

• By Erel
• Sep 6, 2017

I'm mostly using B4A-Bridge to connect the IDE to the Android devices. The built-in video recording feature doesn't work with B4A-Bridge.

I found a good alternative...

 

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Programmatically Setting AIRPLANE_MODE_ON and Off

• By fabero
• Aug 3, 2011

How to set Airplane mode ON e OFF?

I see this:
anddev.org • View topic - How to set airplane mode on/off

How I can traduce it, with B4A?

 

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ScrollView example

• By Erel
• Nov 16, 2010

The ScrollView is a very useful container which allows you to show many other views on a small screen.
The ScrollView holds an inner panel view which actually contains the other views.
The user...

 

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OCR OFFLINE - Tesseract

• By joilts
• Aug 28, 2015

I'm working in a project that needs OCR offline. Made a small progress and decided to share here and get some feedback.
I've searched a little bit at this forum and google about it. Found options...

 

Attachments

• tessTest.zip

  11.9 KB · Views: 1,802

Last edited: Aug 28, 2015

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DJI app java object to start video recording

• By shb777
• Aug 31, 2017

This starts recording video with your dji app

B4X:

'put this in process globals

   Dim AircraftInstance As JavaObject
  

    Dim CameraInstance As JavaObject


'Put this in AfterAircraftConnected...

 

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SQL Fiddle

• By Computersmith64
• Aug 17, 2017

There is a very useful online tool called SQL Fiddle that allows you to build test tables, populate them with data & run queries on them. This is great if you are trying to figure out how...

 

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Using a PlayStation 3 controller with your Android Device

• By wonder
• May 7, 2015

Using a PlayStation 3 controller with your Android Device
This tutorial is an extension of the B4A Generic Gamepad Support thread.

As you can...

 

Last edited: Aug 29, 2017

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Using Procedure in rdc Server

• By azzam223
• Aug 28, 2017

Hello Every Who can not know to use procedure with rdc there are two ways To do that

the first one is use Call keyword like this

B4X:

sql.getcategoryproducts=Call Getprodbycat(?)

this way...

 

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Adding Tripod Mode to your DJI Mobile app

• By shb777
• Aug 24, 2017

Adding Tripod Mode to your DJI Mobile app



Tripod mode for DJI drones, limits the speed of your drone to around 2 mph. So you're less
likely to hit something, when your in confined spaces, or...

 

Last edited: Aug 24, 2017

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B4A-Bridge a new way to connect to your device

• By Erel
• Feb 24, 2011

There are several options to develop with B4A:
- Android emulator or a VM.
- Connect to a real device in USB debugging mode
- Connect to a real device with B4A-Bridge.

I recommend starting with...

 

Attachments

• upload_2016-9-29_9-29-57.png

  14.3 KB · Views: 6,267

Last edited: Nov 11, 2019

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Upload image to server, PostMultipart and PHP

• By rscheel
• Aug 10, 2017

A small example like loading an image with PostMultipart and PHP, I have been useful, you can adapt it needs.

Code B4A

B4X:

Sub CargaImagen
    Dim j As HttpJob
    Dim img As String =...

 

Last edited: Aug 11, 2017

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[B4A] MsMariaDb with Resumable Subs

• By walt61
• Aug 18, 2017

Hi all,

I was looking into 'de-spaghettifying' my code that uses @DonManfred 's MsMariaDb...

 

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