iOS Question App in background

[Giusy]

Hi,
I want, when the app is in background, only call a little sub.
It's possible, and how?
Thanks

 

[Andrew (Digitwell)]

Background Fetch could help you here. It will wake the app up at intervals.

https://www.b4x.com/android/forum/threads/background-fetch-downloads.56022/

 

[Giusy]

Oh @andrew it's too complex for me.
In effect when my mp3 play and the user press the home button (of the device), I want only modify my button in "pause".
What do you think, I have to give up?

 

[Andrew (Digitwell)]

I think you may find the correct solution here:

https://www.b4x.com/android/forum/threads/application-life-cycle.45935/#content

Do you want to know when the app is moving to background?

or do you want to perform processing whilst the app is in background?

 

[Giusy]

I want to know when the app is moving to background and call my sub

 

[Andrew (Digitwell)]

ok,
so it looks like you need to handle the Application_background event.

sub Application_background
 Log ("App Moving to Background")
' Your code here
end sub

 

[Giusy]

In fact this sub scares me much less than the others.
I'll try it and tell you something.
Thank you very much

 

[Giusy]

Hi @andrew with a breakpoint the program don't execute the sub

 

[Andrew (Digitwell)]

Not sure what your problem is.
I have just added the log message to the to a brand new app and it works fine for me.

 

[Giusy]

Hi, @andrew
even me in a simple program works.
Can it be due to the fact that I use a timer and the following routine?

Sub Timer1_Tick

    If Main.sploroISPLAYING =True Then     
       
        label1.Text =  ConvertToTimeFormat(SPLORO.Position) & " di " & ConvertToTimeFormat(SPLORO.Duration)
    Else
        Return
    End If
End Sub

 

[Andrew (Digitwell)]

Why don't you add a timer to the simple program and see what happens.

 

[Giusy]

Yes I will, Thanks Andrew
Good night