Thank you for your reply Jason.
> On Oct 7, 2016, at 1:01 PM, Jason H <jh...@gmx.com> wrote:
>
> It seems like the activity catches it and removes itself from the stack.
> Is it crashing? If so paste the exception.
I think maybe you are correct.
I see no exceptions in adb. Instead it appeared the app was closed
deliberately.
Perhaps the problem is that I do not understand the Android back button. Does
an Android user expect the back button to close an app?
D/TSR (25898): ../source/source/mainwindow.cpp:812 (virtual void
tcmw::MainWindow::closeEvent(QCloseEvent*)): ************************* C L O S
E ******************
I/ActivityManager( 563): Process com.ditchwitch.tsr (pid 25898) (adj 9) has
died.
I/WindowState( 563): WIN DEATH: Window{42c61a48 u0
com.ditchwitch.tsr/com.ditchwitch.tsr.tsractivity.TsrActivity}
W/WindowManager( 563): Force-removing child win Window{42caa3f8 u0
SurfaceView} from container Window{42c61a48 u0
com.ditchwitch.tsr/com.ditchwitch.tsr.tsractivity.TsrActivity}
I expected Android button to retain my app state, suspend app to background,
then restore suspended state when reactivated.
-Ed
> >Has anyone seen this?
>
> I cannot find any useful clues in adb.
>
> The app terminates unless I add a keyReleaseEvent to accept the Key_Back.
>
>
> #if defined(Q_OS_ANDROID)
> ///
> /// Android back button kills TSR ?
> ///
> /// Adding a keyReleaseEvent that accepts the event prevents the crash.
> /// I do not understand reason why.
> ///
> /// Ignoring the Android back button will annoy users but is better than
> crashing.
> ///
> void MainWindow::keyReleaseEvent(QKeyEvent *event)
> {
> if( Qt::Key_Back == event->key())
> {
> qDebug("Android Back button");
> event->setAccepted(true);
> }
> }
> #endif
>
> Thanks in advance,
>
> -Ed
>
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