Tutorials & Examples

Android can synthesize and play text.
Using the TTS library you can easily add this feature to your application.

Sub Process_Globals...

 

Hi Erel,

Finally decided to buy the Android version.
After paying via Plimus I was waiting for your email to download the .exe file, etc.

Quite some hours later I noticed that there were...

 

The following code draws a "selection" window when you move the finger:

Sub Globals
    Dim Canvas1 As Canvas
    Dim Rect1 As Rect
    Dim sx, sy As Int
End Sub

Sub Activity_Create(FirstTime...

 

This is an old tutorial. All new implementations of network solutions should be based on AsyncStreams.

The Network library allows you to communicate over TCP/IP with other computers or...

 

The Animation library allows you to animate views.
These small animations are really nice and can affect the user overall impression of your application.

The attached program demonstrates the...

 

Hi,

Sorry for the silly question.

I have created a layout with a single label called jbox.
I simply want to set the text of the label in the program but cant seem to do it.

My code ...

 

A much improved version is available here.

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

The table is...

 

JSON format is a a format similar to XML but usually it is shorter and easier to parse.
Many web services now work with JSON. JSON official site: JSON

Using the new JSON library, you can...

 

The code in this tutorial should not be used for new projects.
New tutorial: https://www.b4x.com/android/forum/threads/android-bluetooth-bluetoothadmin-tutorial.14768/#content

This...

 

SwiFTP Server
This utility allows you to transfer files or applications to a device that is not connected by cable to your computer.
You can find it by searching the Android market. When it...

 

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...

 

if you want run any shell command as superuser(you must have rooted phone), try this:

Dim Command, Runner As String
Dim StdOut, StdErr As StringBuilder
Dim Result As Int
Dim Ph As Phone...

 

It is simpler to parse XML with Xml2Map class: https://www.b4x.com/android/forum/threads/b4x-xml2map-simple-way-to-parse-xml-documents.74848/

The XmlSax library provides an XML Sax...

 

Here is a tip for exploring the folders on the emulator and also its mounted SD-card (if you have added one like I did). I couldn't find a file-explorer in the emulator.

You can use a program...

 

The result of compiling your application is an APK file. This is a package file that contains the compiled source code and the assets files.
The APK file must be signed before installation...

 

Hi,

I have attached a little game. It's the old Pong.
At this time I still have no Android device. (Christmas will be soon :sign0060

Could someone be so nice to test it on a device and...

 

Update 2018:

New video tutorial:


The source code is available here...

 

The Type keyword is used to create your own types or structures. You can use such types to create simple structures that group some values.
However you can also use it to create more complex...

 

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...

 

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...