Tutorials & Examples

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.​

...

 

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...

 

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...

 

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...

 

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?

 

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...

 

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...

 

This starts recording video with your dji app

'put this in process globals

   Dim AircraftInstance As JavaObject
  

    Dim CameraInstance As JavaObject


'Put this in AfterAircraftConnected...

 

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...

 

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

As you can...

 

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

sql.getcategoryproducts=Call Getprodbycat(?)

this way...

 

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...

 

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...

 

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

Code B4A

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

 

Hi all,

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

 

B4A is now available in a book that covers version 7.01.

For purchase visit http://pennypress.co.uk/b4a-russian/

ANDROID – это полюбившаяся во всем мире операционная система для мобильных...

 

This demo app shows how to use RenderScript ScriptIntrinsics in real time image processing. As an example the camera preview is converted into a cartoon like image. The processed image can be...

 

This tutorial explains the differences between the three methods.

The bottom line is that the best option is to use LoadBitmapResize and set the container gravity, if possible, to Gravity.CENTER...

 

Starting from B4A v7.0 the following warning will appear for DoEvents calls:
DoEvents is deprecated. It can lead to stability issues. Use Sleep(0) instead (if really needed).

The purpose of...

 

In my new app, I am using the Starter service. I have a few variables I am trying to create, and consume them in my "main" form.
But when I start my app, I get an error message of an undeclared...