Tutorials & Examples

This is a common question and for a good reason.

Custom views classes are not views by themselves.
The views tree only holds views.
This means that this code cannot work:

Dim...

 

Hello!

As already told in another thread, i'm working on a navigation app using Google Maps API in combination with Google Directions http-requests for routing.

The http-Requests looks as...

 

Attached is a little program shows how to read a directory content, show the filenames in a listview, and showing an example of the selected image file in imageview.

Duplicated from the...

 

One of the new features of Android 4 is the more powerful recent apps list. The user can remove tasks or applications from the list with a swipe gesture.

The result of this action is not fully...

 

Tasker is a pretty legendary app that allows you to automate everything on your phone:
https://play.google.com/store/apps/details?id=net.dinglisch.android.taskerm

Developer reference...

 

Hi

Here is a tutorial that shows the steps of how to make an Android connection to MS SQL Server using jRDC2.

Download tutorial here:
Attached the Mobile...

 

This is a full working example of real time ObjectDetection (in this case, cars) using cascadeClassifiers, getting the input from a recorded video file, making use of Videocapture. The example was...

 

Start with this tutorial if you are not familiar with custom views: [B4X] Custom Views with Enhanced Designer Support

With the help of XUI it is quite simple to create custom views classes...

 

B4XImageView is a new custom view, added to XUI Views v2.40.

It adds several useful resize modes to the standard ImageView:

(Images source...

 

Hi, How do I display a animated GIF?
Now it just shows up as a static image.

 

How can i define the Color of the horizontal Lines between Listview Items?

 

B4XPlusMinus is a cross platform control introduced in XUI Views v2.05: https://www.b4x.com/android/forum/threads/b4x-xui-views-cross-platform-views-and-dialogs.100836/...

 

I am going to try and wrap this (CircularButton) from here
https://github.com/Alexrs95/Circula...alexrs/circularbutton/lib/CircularButton.java
Found it on the android-arsenal.com website...

 

BitmapCreator (BC) continues to evolve. Version 4.5 update is a large update with several new drawing features.

Background

At its core BC holds an array of bytes that represent an image...

 

The purpose of this tutorial is to cover the various communication options available for B4X developers.

Will start with two important utilities:

• AsyncStreams...

 

Private sign keys created with B4A v7.80 or less together with Java 8u151+ will fail with the above error message. Note that it does not affect existing keys.
It is related to a change in the...

 

Hey everyone,

Here I will explain how you can make an evaluation/trial version of your app using an online database.
With this, the user will be able to open up the app x times. When 0 is...

 

Edit: Google AdMob does support rewarded ads without mediation.
You can use this unit id to test it: rewardAd.LoadAd("ca-app-pub-3940256099942544/5224354917")
Make sure to use FirebaseAdMob...

 

B4XDrawer v1.53 adds support for B4J. This is a good opportunity to create a B4XPages example using B4XDrawer.
It does require some configuration so pay attention.

The example is...

 

This example shows how to create an app that can act as a sharing target. It will be listed in the list of apps that show when the user shares an image.

The first step is to add an intent filter...