Tutorials & Examples

Douglas Farias · Oct 31, 2019

Hi All.
I made this example for a chatbot app here on brasil and now i want to share it here.

This example use xCLV and IME lib (Already in B4A).
The messages fit...

Erel · Feb 3, 2013

The HttpServer library is a new library, based on an open source project named Jetty. This library allows you to easily embed an Http server in your application.

Http server means that you...

Erel · Feb 10, 2019

B4XTable.SetData expects a List where each entry in the list is an array of objects with the data of a single row.

The data can come from any source you like...

AnandGupta · Oct 29, 2019

Hi Friends,

As you know, I made an online sheet of Walt's B4XGoodies List and he helped me by providing download links of html and version text files...

Erel · Aug 29, 2016

Example was updated based on FileProvider class: https://www.b4x.com/android/forum/threads/class-fileprovider-share-files.97865/
See the above link if you are interested in sharing...

Erel · Feb 12, 2012

Using the NFC library you can read NFC tags formatted in NDEF form (NFC Data Exchange Format).
You can read more information about the internal process here: NFC Basics | Android Developers...

Erel · Jul 1, 2019

Android Support Library was implemented and maintained in the last 8 years by Google. It includes a wide range of features and it hides many of the differences between the various Android...

Erel · Jan 30, 2017

This is an extension to the MQTT chat room example: https://www.b4x.com/android/forum/threads/b4x-mqtt-chat-room.61568/#content
It is a chat room where one of the devices acts as a server...

Jmu5667 · Mar 8, 2019

Hello

I would like to share some observations with you all, is is based on https://www.b4x.com/android/forum/threads/background-location-tracking.99873/#post-628468

A problem that we all...

Erel · Nov 18, 2019

The "index pattern" is a pattern that you can see in many examples and libraries where resumable subs are used. It is a simple solution to avoid race conditions and unexpected states.

The...

Erel · Jun 13, 2013

Better to use: https://www.b4x.com/android/forum/threads/simple-progress-http-download.127214/#post-796463

The attached project includes a slightly modified version of HttpUtils2 and...

Erel · Jan 1, 2013

Starting from Basic4android v2.50 you can compile your project, or part of it to a regular library.

Why should I compile a library?

Break large projects into several smaller (more...

junglejet · Nov 9, 2019

I decided to become Google's darling. After a very old B4A app, that went perfect for many many years (API 8, targetSDK 14), was threatened to be thrown out of the app store, I decided to waste my...

Douglas Farias · Oct 31, 2019

Hi all.
Here is a simple pou game example (only one room).

This example use this another example, but now with images...

LucaMs · Oct 28, 2019

[A simple suggestion, not addressed to "experts"]

I am almost certain that some members, having to identify which view triggered an event, use the tags.

For example:

You have a kind...

Erel · Oct 23, 2019

The attached B4J example demonstrates how to implement lazy loading with editable items.

There are several interesting points...

makis_best · Oct 7, 2019

With this example I show how a decimal number can be translated to Greek words.

For example: Log(DeployCurrencyToText(1234.04)) give the result χίλια διακόσια τριάντα τέσσερα ευρώ και τέσσερα...

DonManfred · May 3, 2014

We start with a few DIMs for needed Variables

B4X:

sub Globals
    Dim ffiles,ffolders As List
    Dim root As String
End Sub

and a main sub from this tutorial

B4X:

Sub ReadDir(folder As String...

tufanv · Mar 22, 2017

Hello,

This is the first time I am preparing a tutorial for this great community so please excuse me for any mistakes or weak explanations. Methods of some of the implementation may not be %100...

Johan Schoeman · Dec 23, 2014

This is a simple project that makes use of the device's vibrator. You can do the following:
1. Switch the vibrator ON for a specified duration of time (in milliseconds)
2. Switch the vibrator...

Tutorials & Examples

Show only:

Responsive Chat Example

Embed an Http Server in your Android Application

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[B4X] B4XTable - Load data from SQL database

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B4XGoodies Check App

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Sharing files from your app with File Provider

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Reading NDEF data from NFC tags

AndroidX SDK

MQTT Chat with Auto Discovery

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Background Services in Android 8+ - Observations !

[B4X] Resumable subs and the index pattern

Download huge files with HttpUtils2

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Library compilation - Compile your project to a library

Upgrading a Google Maps app to targetSDK 28

POU Game example

[B4X] SELECT - don't waste tags

[B4X] xCLV - lazy loading with text input

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Decimal Number to Greek Words - Olografos

recursive Directorystructures and what to do with this filelist

Admob Mediation With Facebook

Vibrating Service - Also with Java code inside B4A project

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Tutorials & Examples

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