detecting back arrow key

[drj]

Hi,

I am working with the tablet app.

I have one main activity that calls twenty other activities.

Once I have called an activity and using it , when I want to return to the main activity , I press that back arrow or navigation arrow (I am not sure the name) and the app returns to the main activity.

While I am in one of the called activities I want to detect that the user has pressed the back arrow navigation so I can save data to the data base before the navigation goes back to the main activity.

How does one do that? Must be some easy way?

Thanks,

Jerry

 

[stevel05]

Have a look in the beginners guide Chapter 17.6 or here

 

[drj]

Hi I am not sure that is the solution

Hi,

I took at a look at the reference and tried the following.

Sub Activity_Pause (UserClosed As Boolean)
If UserClosed Then
SaveFunctions


Else

End If

End Sub

When I put this in my and then pressed the back navigation arrow on the emulator nothing happened , in fact I put a debug on it and this code did not get executed.

I am looking for something simple - what is called when I return to my main activity via pressing this arrow. If I can detect this then I can save the data in the called activity before returning to the main. In Window 8 this is analogous to the GoBack arrow?

Jerry

 

[stevel05]

It works on mine, try using a Log Statement instead of Debug. I don't think you can interrupt the process (with modal dialogs or debug) once it's shutting down as it is when Activity_Pause is called.

Sub Activity_Pause (UserClosed As Boolean)
If UserClosed Then
     SaveFunctions

    Log("Saved...")
Else

End If

End Sub