Tutorials & Examples

Hi,

Last couple of days I have been testing compilation of B4A programs through Google Drive Filestream. Although it is a little bit slower it has a lot of advantages to do this:

- your OpenJDK...

 

B4A v4.30 includes a new tool named B4ABuilder.exe (and B4J includes a similar tool named B4JBuilder.exe).

This tool allows you to compile your projects from the command line. This can be useful...

 

Yes, you heard me right! It is possible to utilize the pointers and references (at least in terms of behavior) in B4X Java-based languages (B4A and B4J).

There is a lot to explain about...

 

Hi all.
Here is a simple example of how make a eyes folow the touch on a panel.

another example

a source is attached

 

Android Things is a new project of Google that extends the Android OS to SoC (System on a Chip) boards such as Raspberry Pi and Intel Edison.

https://developer.android.com/things/index.html...

 

More videos: https://www.b4x.com/etp.html

The example app is attached.
Note that the correct library that needs to be checked, except of B4XPreferencesDialog, is XUI Views...

 

New CLVHeader class replaces this implementation: https://www.b4x.com/android/forum/t...ce-animated-header-to-xcustomlistview.105343/

...

 

Sample project to intercept clicks and longclicks on images or text portions in a webview.

The test project was created, because it became necessary to find a suitable solution from the very much...

 

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...

 

Starting from August 2019 for new apps and November 2019 for updates, Google Play requires apps to set targetSdkVersion to 28.

The tutorial was updated with information related to API level 28...

 

This example demonstrates how you can use an OCR web service to recognize text in camera images.

The program allows you to take a picture and then send it to OCRWebService.

OCRWebService...

 

Adafruit IO is a cloud service built for IoT solutions. It provides two interfaces: MQTT and REST API. It is very simple to use it with B4X as demonstrated in this example.

It is more than...

 

B4XDialog from XUI Views library can show simple dialogs, template based dialogs and custom dialogs.

The example...

 

Depends on B4XTable v1.01+

It is very simple to add your own navigation features.

Code:

Sub btnNext_Click...

 

Check Trial Period using Dropbox (first version, improved version in Post #2)

Hello,

I have tried to find a solution to solve the control of the trial period of an app using the...

 

Good afternoon, I contribute to the community with a small example of the class B4XDrawer with material icons and fontawesome icons.

Thanks to the whole...

 

Hi,

in this tutorial i will show you how to add an in app product to your android app.

There is an official tutorial by @Erel so you should also check that out...

 

Sources used:
Main sources:
https://medium.com/@ssaurel/how-to-...r-a-crash-or-a-force-close-error-1a361677c0ce...

 

Here is a method using FTP to create a trial period for your app. Since there is no local file with trial information, the user cannot defeat it by manipulating stored data. Also, FTP calls are...

 

Using Kotlin libraries is similar to using Java libraries. The only difference is that we need to add references to two...