Tutorials & Examples

This looks like a good guide for designing your interface.

Android Interaction Design Patterns |

 

Here is a simple subnet scanner. It scans the current class C subnet for a particular port number and tries to open a connection.

It logs all the IPs that are found to have that port open in a...

 

The attached project will generate and solve Sudoku puzzles (9x9). The code to solve the puzzles with was adapted from here (converted to B4A). The code to generate Sudoku puzzles with comes...

 

Hi all

*EDIT3*

For a much easier to set up and faster Android emulation please now look at this thread:

GeanyMotion...

 

This is an old tutorial. I recommend to instead watch the visual designer video tutorial: https://www.b4x.com/etp.html

There are several features in B4A that help you target Android...

 

Large projects and especially projects maintained by a group of developers usually require a source control system.
Using SVN with Basic4android is quite straightforward with a client tool such as...

 

My need was to sync calendars in which user 'A' changes the calendar and sends the change to other users by writing records to the hosted database.
The other users query periodically to see it...

 

Hi all.
I found this example in some old folders on my pc and decided to share here.
it is a simple example of how consume a api with http.

Fipe is a organization with control of cars...

 

It is recommended to use TabStripViewPager for new projects: https://www.b4x.com/android/forum/threads/63975/#content


The TabHost view is a very important view. It allows you to add...

 

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...

 

I have tested this on an Android 7.0 device only - take a screenshot of your activity. You need to enable the JavaObject library to make use of it.

@JordiCP solved my initial problem here...

 

It is recommend to use the new CameraEx class. It provides more functionality.
The new Camera library allows you to take pictures using the back facing camera.

The following steps are...

 

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...

 

hello, a small library of TessBaseAPI "tesseract4android-2.1.0" Ocr, you need to download tesseract4android-2.1.0.aar and junit-4.4.jar as Depends, for the tessdata languages...

 

Google never seizes to surprise us and its latest miracle is the following:

In order to fix this no matter if you have an EmailList set with the testers I have done two things. I do...

 

Two great tools for testing webapps and webhooks

Researching the internet I have found two great tools that can be used for testing webapps and webhooks. The first is called ngrok. What it does is that it creates a tunel to your web app and makes it accessible from the internet through https without port forwarding. It acts as a kind of...

www.b4x.com

 

Hi there

I'm hoping there are other methods of doing this..., if so, let's please share.

Anyway, a client was indicating the app I just sent does not work on their S7 samsung phone. So me, #bang...

 

Hello!

I'm new here, new to android and new to programming, and this is my first attempt at creating an app which uh.. lets my test my apps!

It's divided in two parts, one that puts the...

 

Many applications require access to a persistent storage. The two most common storage types are files and databases.
We will cover text files in this tutorial.

The predefined Files object has...

 

I am using the PageTurnView library & like it very much.

In my code I would like to destroy & create a TextPaginator object or at least clear the text buffer that was set within this object...