Android Question Resumable subs cannot return a value.

[panagiotisden2]

i want to show a dialog in Activity_KeyPress if the back button was pressed with a msgboxasync and a wait for but i get this error. I was previously doing it with a msgbox result and i wanted to convert it to msgboxasync. isn't it possible?

 

[monki]

Read Erels post https://www.b4x.com/android/forum/threads/b4x-resumable-subs-sleep-wait-for.78601/#content

monki

 

[panagiotisden2]

Read Erels post https://www.b4x.com/android/forum/threads/b4x-resumable-subs-sleep-wait-for.78601/#content
https://www.b4x.com/android/forum/threads/b4x-resumable-subs-sleep-wait-for.78601/#content
monki

yes i saw that, so i must use the old method to show a msgbox in the activity_keypress?

 

[Erel]

You can do it with this code:

Sub Activity_KeyPress (KeyCode As Int) As Boolean 'Return True to consume the event
   If KeyCode = KeyCodes.KEYCODE_BACK Then
     HandleBackKey  
     Return True  
   End If
   Return False
End Sub

Private Sub HandleBackKey
  Msgbox2Async(Message, "Close?", "Yes", "No", "", Null, False)
   Wait For MsgBox_Result (Result As Int)
   If Result = DialogResponse.POSITIVE Then
     Activity.Finish
   End If 
End Sub

It is better than showing a modal dialog in the KeyPress event.

 

[panagiotisden2]

You can do it with this code:

Sub Activity_KeyPress (KeyCode As Int) As Boolean 'Return True to consume the event
   If KeyCode = KeyCodes.KEYCODE_BACK Then
     HandleBackKey 
     Return True 
   End If
   Return False
End Sub

Private Sub HandleBackKey
  Msgbox2Async(Message, "Close?", "Yes", "No", "", Null, False)
   Wait For MsgBox_Result (Result As Int)
   If Result = DialogResponse.POSITIVE Then
     Activity.Finish
   End If
End Sub

It is better than showing a modal dialog in the KeyPress event.

Thank you Erel, very clever solution. It fits my needs