Tutorials & Examples

Blockchain
A digital ledger in which transactions made in bitcoin
or another cryptocurrency are recorded chronologically and publicly.
In more general terms, it’s...

 

Hi,

If your Facebook and firebase configurations are all ok but the auth event is not raising or if you are getting An account already exists with the same email address but different...

 

This app save each image into a server via FTP
and if you want download all images to merge into a video

Esta App salva cada imagen en un servidor via FTP
y si lo deseas puedes bajar todas las...

 

Hi everyone,

there is a new way to create the localizator class csv file and it is as easy now as it could never be in the past. Just watch the following video:

(23-6-2019)

In order...

 

I finally have reliable, stable printing to a blue tooth printer (Citizen CMP-10 and CMP-20) from my Samsung 5570L Galaxy Mini Android Device running v2.3.6

Attached is a skeleton project...

 

A much improved version is available here.

You can use the code in this example to show data in tabular form.

The table is...

 

Hello, i see here, that many people have problems to install there wear app to his watches.
I list the steps that are needed so that you can quickly look up when you need it.

Phone:
-install the...

 

(Here is the iOS version)
This is how you can set HTML data to Label (works only in release mode),

Dependencies: StringUtils, jSoup, LabelExtras

Here is the code,

Dim...

 

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...