Screen Orientation fixed-portrait-or-landscape?

[mudaj]

I appreciate how useful multiple screen orientations are for most applications, but I have an app that will be used actively on a device strapped to user's forearm. Often the user might be at awkward angles like 45 degrees when they look at the screen, so I would like to keep it fixed in either portrait or landscape (chosen by the user preference).

Is there a way to force a particular screen orientation and keep it fixed for the duration, no matter how it is rotated?

 

[kickaha]

You can set the orientation before compilation (Project menu > Orientations supported), but I am not aware of any way to make this user selectable.

 

[mudaj]

Thanks kickaha, did not even notice that menu!

 

[Erel]

You can also change the orientation at runtime with Phone.SetOrientation: Basic4android - Phone
Once you change it to portrait or landscape it will not change automatically by the sensors.