orientation change

[gordon]

I guess I'm missing the obvious but .....
I have a main view which is called in activity_create thus

    If FirstTime Then
       Gps1.Initialize("GPS")
      Activity.LoadLayout("main")
      createDirectory
   End If

and in that view is a button, the click event of which is this

Sub btnMain_Click
   RemoveViews
   Activity.LoadLayout("screen2")
   
End Sub

(The sub routine RemoveViews is nothing other than a copy of the sub given in the tutorial working with views. )

screen2 has 2 variants, 1 for portrait and 1 for landscape. If screen2 is the active view I had hoped that a screen orientation change would result in screen2 still being in view, but for some reason after such an orientation change the loaded view is "main". Could someone put me out of my misery and explain what i am doing wrong please. Many thanks.

 

[klaus]

Instead of removing all views and loading a new layout you should use a new activity and then you'll get what you expect. Otherwise it's up to you , in your code, to manage what is the last layout when a screen orientation happens.

Best regards.

 

[gordon]

Ah yes I see now. Thanks for the prompt reply.

 

[mc73]

When you have a change in orientation, your activity is 'destroyed'. Then, activity_create is again executed, making the reappearance of your 'main' layout pretty logical. In order to avoid this, you should write somewhere your very last loaded layout and reload this specific one, in your activity_create. This, of course, can lead to a confusion. In case you don't really need for some reasons, multiple layouts in the very same activity, I suggest following Klaus' advice and generate multiple activities. After all, your code will be more crystal, at least this is my opinion.
Here's the description of activities' life cycle and so on: http://www.b4x.com/forum/basic4andr...-process-activities-life-cycle.html#post37980