Tutorials & Examples

API for live information about COVID-19

##source##

Sub covid

    Dim cov1 As HttpJob
    cov1.Initialize("GetAddress", Me)...

 

While looking around on interesting projects to wrap i found a java console app (jar file) which is able to create and manage Certificates which can be used in your Server.
It manages Let´s...

 

* * * B4A on the Kindle Fire Device * * *

This tutorial is being written to help notify/guide B4A users of known issues that have been found using B4A with the kindle fire device and some...

 

Starting from v1.70 of Net, jNet and iNet libraries the asynchronous methods return a 'sender filter' object.
This object can be passed as the sender filter parameter in a Wait For call.
This...

 

Hey everyone,

I just came across this video and I thought I should share it with you:

 

EDIT: created a more comfortable library (b4xlib) based on this code, B4XTblClmUtils:
https://www.b4x.com/android/forum/threads/b4x-b4xtblclmutils-v-1-0.116672/post-729034

...

 

hi..
I prepared the youtube playlist using the examples in the forum.

Used libraries:
➡ Javaobject
➡ Labelextras
➡ Okhttputils2
➡ Snyoutube
➡ Stringutils
➡ Xcustomlistview
➡ Xml2map
➡ Xmlbuilder...

 

Lets say that we want to build a layout such as the above where the screen is split into two halves.

If we try to build this layout with a single layout file we will quickly meet a...

 

Use case: you downloaded an old example and you want to reset the manifest editor code so it will have the correct targetSdkVersion and theme.

Open the manifest editor, delete all text and save...

 

B4XCanvas is the cross platform version of Canvas.

Steps to using B4XCanvas:

1. Initialize and pass the target view. In most cases it will be a Panel (or Pane). It must be a Pane in B4J.
2. Make...

 

This library is based on the following open source project: https://github.com/astuetz/PagerSlidingTabStrip
License: http://www.apache.org/licenses/LICENSE-2.0

It...

 

Here is a ContentChooser Example project to choose a image at phone for use in a activity with image view. it works with B4A 9.x and Android 8.1...

 

Good morning,
I'd like to share the free "Android Development Environment Preparation" course.
This course helps prepare the B4A development environment to start developing Android apps.
I thank...

 

Trying to find an automated way to build a B4X library, I found this method, I'd like to share for improvements and suggestions.
I'm using B4J as the development environment for the sake of...

 

See attached B4A project:

1. It takes an image (png or jpg) and convert it into a byte array
2. The byte array is converted into a Base64 String
3. The String is then converted into a QR Code...

 

Hello All
I might be a bit late to the show with this one, but I've been busy completing paid work. Hopefully new members will find this useful.

The B4i example can be found here...

 

Hi all. Interfacing B4A with Arduino is really very simple and you can create any kind of application.
This is a simple example:



Code B4A:

#Region  Project Attributes...

 

I am happy to announce that the both the paperback and electronic versions of the B4A tutorial and reference book “B4A Rapid Android App Development using BASIC” by Wyken Seagrave have now been...

 

ENGLISH:
Good morning,
I would like to share the free course "Preparing development environment for B4 IOS".
This course helps prepare the B4I development environment and the MAc to start...

 

Hello Forum,

in this Example i want to show you, how to use the ASTabMenu togehther with the xCustomListView, to handle a lot of Tabs without getting into layout problems...