Yes, onPause(). On Tue, Aug 11, 2009 at 9:45 PM, eags <[email protected]> wrote:
> > I guess a related question is, how do I guarantee that my app finishes > whenever it is not in the foreground? onPause() I guess. > > On Aug 11, 2:44 pm, Dianne Hackborn <[email protected]> wrote: > > I would guess there is something else going on. If you only press home, > > then that function should never be called. You could put a breakpoint in > it > > to verify. > > > > > > > > > > > > On Tue, Aug 11, 2009 at 11:54 AM, eags <[email protected]> wrote: > > > > > Thanks Dianne. I am still confused as to why consuming all events in > > > onKeyDown breaks the normal behavior when relaunching the app? If I > > > leave onKeyDown alone, pressing HOME takes me to the home screen and > > > relaunching takes me directly back to where I left off in the task. > > > However if I always return true from onKeyDown then after pressing > > > home and then relaunching, the task is restarted from the beginning. > > > Why is that? > > > > > Thanks again. > > > > > On Aug 10, 8:20 pm, Dianne Hackborn <[email protected]> wrote: > > > > The home and end call keys are intercepted by the system before ever > > > > reaching the application, and there is nothing you can do in the app > to > > > > modify their behavior (including overriding onKeyDown). > > > > > > All other keys (including back, menu, call, and search) are first > sent to > > > > the application and only perform their default action if the > application > > > > does not consume them. By returning true from onKeyDown(), you are > > > > consuming the events and not allowing their normal behavior to run. > > > > > > On Mon, Aug 10, 2009 at 7:15 PM, eags <[email protected]> wrote: > > > > > > > This behavior is actually very strange and apparently not quite as > > > > > simple as the event is not delivered to applications. > > > > > > > Indeed if I try and capture the key event, I cannot. However if I > > > > > just do this: > > > > > > > public boolean onKeyDown(int keyCode, KeyEvent event) > > > > > { > > > > > return true; > > > > > //return super.onKeyDown(keyCode, event); > > > > > } > > > > > > > and then press the home key, the Activity does not stay in the task > > > > > stack and launching again does not get me back to this activity but > > > > > the whole app is just launched again from the beginning. So it is > > > > > like there is something in the default implementation of onKeyDown > > > > > that makes the correct behavior work and I can't stop it from > > > > > happening but somehow I can break it but always retuning true from > > > > > onKeyDown. > > > > > > > Can anyone explain this behavior or point me to some documentation > > > > > that will clear this up? > > > > > > > Thanks. > > > > > > > On Aug 7, 8:04 pm, Marco Nelissen <[email protected]> wrote: > > > > > > The home key is not delivered to applications. > > > > > > > > On Fri, Aug 7, 2009 at 7:25 PM, eags<[email protected]> > wrote: > > > > > > > > > I have implemented onKeyDown and can successfully intercept > > > > > > > KEYCODE_BACK and many others to prohibit the default behavior. > Is > > > > > > > this not possible with KEYCODE_HOME? I have a test activity > that > > > will > > > > > > > only finish() if KEYCODE_A is seen. Even KEYCODE_BACK does > > > nothing. > > > > > > > However KEYCODE_HOME continues to have its effect. > > > > > > > > > Anyone have any insight into this? > > > > > > > > > Thanks. The test code is below. The strange thing to note is > that > > > > > > > although the toast in the if/else that should handle the > > > KEYCODE_HOME > > > > > > > never fires, if I relaunch the application the state is *not* > > > restored > > > > > > > so it is like either the onDestroy is being called (previously > I > > > tried > > > > > > > finish() also) or it is like the application is crashing for > some > > > > > > > other reason. > > > > > > > > > I'm confused. > > > > > > > > > import android.app.Activity; > > > > > > > import android.os.Bundle; > > > > > > > import android.view.KeyEvent; > > > > > > > import android.widget.Toast; > > > > > > > > > public class MainMenu extends Activity > > > > > > > { > > > > > > > public void onCreate(Bundle bun) > > > > > > > { > > > > > > > super.onCreate(bun); > > > > > > > setContentView(R.layout.main); > > > > > > > > > } > > > > > > > public boolean onKeyDown(int keyCode, KeyEvent event) > > > > > > > { > > > > > > > //if we get any key, clear the Splash Screen > > > > > > > if(keyCode==KeyEvent.KEYCODE_HOME) { > > > > > > > Toast.makeText(getApplicationContext(), "HIT!", > > > > > > > Toast.LENGTH_SHORT).show(); > > > > > > > onDestroy(); > > > > > > > return true; > > > > > > > } else { > > > > > > > Toast.makeText(getApplicationContext(), > "missed", > > > > > > > Toast.LENGTH_SHORT).show(); > > > > > > > return true; > > > > > > > } > > > > > > > //return super.onKeyDown(keyCode, event); > > > > > > > } > > > > > > > > > } > > > > > > -- > > > > Dianne Hackborn > > > > Android framework engineer > > > > [email protected] > > > > > > Note: please don't send private questions to me, as I don't have time > to > > > > provide private support, and so won't reply to such e-mails. All > such > > > > questions should be posted on public forums, where I and others can > see > > > and > > > > answer them. > > > > -- > > Dianne Hackborn > > Android framework engineer > > [email protected] > > > > Note: please don't send private questions to me, as I don't have time to > > provide private support, and so won't reply to such e-mails. All such > > questions should be posted on public forums, where I and others can see > and > > answer them. > > > -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. 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