prevent screen orientation

[Cor]

How to prevent screen orientation?

Only show program in portrait or landscape

grCor

 

[Erel]

You can control the orientation by checking Project - Orientations Supported - ...

 

[Cor]

Is this possible to do it by code?

grCor

 

[Erel]

No. The orientation settings affect the application AndroidManifest.xml file. This file describes the application for the OS. One of the parameters is the orientation mode. Therefore it must be done during compilation.

 

[Cor]

But how to detect a orientation change and act on it

grCor

 

[Erel]

But how to detect a orientation change and act on it

This is a different question. Each time an orientation change occurs the activity is recreated. You can check the orientation in Activity_Create with Activity.Height / Width or with GetDeviceLayout.
See this post for the recommended way for handling multiple layouts:
http://www.b4x.com/forum/basic4andr...2-guess-my-number-visual-designer-events.html