Device screen orientation in xamarin is usually configured from Host(Android/iOS) project as suggested here . But what if i need to change the screen orientation of one particular screen(say to landscape) in xamarin form and other screens are different (may be portrait), to do so there is no direct options available from xamarin form.
We will do the configuration in host project for the common screen orientation required throughout the application, to do any changes for particular screen need to touch back to the host project settings again because as of now there is no wrapper Form level API’s available.
For example consider the scenario that my Form project contains the Five screens out of that, for Third screen i need give support for both Portrait and Landscape and for all other remaining screen only in portrait. This can be done in android as follows,
Use the MessageCenter class to send the message from the Form screen for which orientation need to be changed and receive the same from Android MainActivity class.
ThirdPage.xamal.cs
public partial class ThirdPage : ContentPage
{
protected override void OnAppearing()
{
base.OnAppearing();
MessagingCenter.Send(this, "allowLandScapePortrait”);
}
//during page close setting back to portrait
protected override void OnDisappearing()
{
base.OnDisappearing();
MessagingCenter.Send(this, "preventLandScape");
}
}
