Tutorials & Examples

I'm opening this thread to collect tricks and caveats I'm coming across while converting my projects to B4XPages

CallSub from Service
Looks like a service that is started at boot may...

 

ETP is a series of video tutorials about B4X. The purpose is to allow developers with any programming experience, including no experience, to learn how to program with B4X.

The videos are...

 

Data source: https://ourworldindata.org/coronavirus-source-data

Cross platform example based on B4XTable and xChart...

 

RandomAccessFile v1.30 introduces two new methods named: WriteEncryptedObject and ReadEncryptedObject.
These methods are similar to WriteObject and ReadObject methods. The difference is that the...

 

Here is a simples exemple how to make a simple loading screen with a timer.
you can use to make a splash screnn too.

is based on webview
-html
-css

The html and gif is on files folder

This is...

 

Hi there

The purpose of this is to demo how one can add, update, read and display mysql database records into a webview.


1. Setting up development environment

For this...

 

Edit by Erel: Don't use WebView for this. Unlike Google Maps SDK, it is not free, more difficult to implement and Google Maps SDK will work better...

 

It wraps a tiny bit of this - just enough to show the clock. Thought it looked quite nifty...Have done nothing special to it other than painting the hands and the face a bit... Lib...

 

B4XPages makes many things simple and even trivial.
As Android developers, we are dealing with these challenges for many years now so it might take us a while to understand how simple things can...

 

The attached b4xlib library is a cross platform list of colors:

It is a XUI custom view. The custom view is based on two...

 

Cross platform version, based on B4XPages, of...

 

CloudKVS solves a difficult and common problem. The user needs to work with online data, however as this is a mobile app we cannot assume that the device will always be connected to the remote...

 

This is a simple example that demonstrates a recommended method of sharing code and files between B4A, B4i and B4J.
It is...

 

Have done this just for the fun of it. Have wrapped this posting. The B4A code is short and sweet:

#Region  Project Attributes
    #ApplicationLabel: Compass
    #VersionCode: 1...

 

The next code add the funcionality in b4x to capture the click & longClick using Touch, in case of b4j add the option to fire the longClick using the Right Mouse Click or the secondary mouse...

 

Hi,

Had made an application in B4A (my first in B4A) to display COVID-19 statistics.
Lots of data is specific to India. You can change them to reflect data from your country.

Used quite a bit of...

 

Edit: Starting from v5.00 there is support for multiple themes. See this post for more information: https://www.b4x.com/android/forum/threads/themes-and-fonts-in-5-0.54338/#post-340927

 

SavePictureToFile(XUIImageToJPEGByteArray(CreateThumbnail(xui.LoadBitmapResize(File.DirAssets,"Snapchat-248558753.jpg",150dip,150dip,True)),150dip,150dip,50),File.DirRootExternal,"test.jpg")

...

 

This example uses PreoptimizedCLV to create a list of BBCodeViews.
In most cases it will be simpler to create a single BBCodeView, as BBCodeView is scrollable. However there might be...

 

Custom views are designed to be added with the designer.

It is however very simple to create a layout file with the custom view and load it multiple times...