iOS Question Hook for applicationWillTerminate?

Private Sub Application_Start (Nav As NavigationController)
    'SetDebugAutoFlushLogs(True) 'Uncomment if program crashes before all logs are printed.
    NavControl = Nav
    Page1.Initialize("Page1")
    Page1.Title = "Page 1"
    Page1.RootPanel.Color = Colors.White
    NavControl.ShowPage(Page1)
    Log(File.Exists(File.DirDocuments, "test")) 'it will be true after the terminate event ran
End Sub

Private Sub Application_Terminate
    File.WriteString(File.DirDocuments, "test", "test")
    Log("you will not see this.")
End Sub

Private Sub Page1_Resize(Width As Int, Height As Int)
   
End Sub

Private Sub Application_Background
   
End Sub

#if OBJC
@end
@implementation B4IAppDelegate (terminate)
- (void)applicationWillTerminate:(UIApplication *)application {
    B4I* bi = [b4i_main new].bi;
[bi raiseEvent:nil event:@"application_terminate" params:nil];
}
#End If