[android-beginners] Re: onSaveInstanceState question

2009-09-14 Thread Yusuf Saib (T-Mobile USA)
Google "root ". Yusuf Saib Android ·T· · ·Mobile· stick together The views, opinions and statements in this email are those of the author solely in their individual capacity, and do not necessarily represent those of T-Mobile USA, Inc. On Sep 12, 9:20 am, aamod rao wrote: > can anyone of u he

[android-beginners] Re: onSaveInstanceState question

2009-09-12 Thread aamod rao
can anyone of u help me to root my phone? On Sep 12, 6:35 am, Mark Murphy wrote: > jason wrote: > > Is there a way for an (sub-)activity to pass values to the previous > > activity on the stack (when Back key is pressed) without resorting to > > persistence storage or static varables in the app?

[android-beginners] Re: onSaveInstanceState question

2009-09-11 Thread Mark Murphy
jason wrote: > Is there a way for an (sub-)activity to pass values to the previous > activity on the stack (when Back key is pressed) without resorting to > persistence storage or static varables in the app? Use startActivityForResult() rather than startActivity() to start it, use setResult() to

[android-beginners] Re: onSaveInstanceState question

2009-09-11 Thread jason
Thanks, Mark. That was helpful. > If you are referring to activities started by one of your activities via > startActivity(), then, yes, the BACK button behaves the same. The BACK > button's job is to destroy the current activity and return control to > the previous activity on the stack. Is the

[android-beginners] Re: onSaveInstanceState question

2009-09-11 Thread Mark Murphy
jason wrote: > Is there a > way to trap Back key within an application and prevent/control this > behavior? Implement onKeyDown() in your activity and watch for KeyEvent.KEYCODE_BACK. Please bear in mind that your users will get irritated if you make it difficult for them to navigate your applic

[android-beginners] Re: onSaveInstanceState question

2009-09-11 Thread jason
Thanks, Mark. Hmm, pressing the Back key so easily kills the activity. Is there a way to trap Back key within an application and prevent/control this behavior? For sub-activity screens, does the Back key have the same behavior (killing the app/activity) or does it go back to the parent activity

[android-beginners] Re: onSaveInstanceState question

2009-09-11 Thread Mark Murphy
Mark Murphy wrote: > If you wish to save something when the activity is being destroyed, > implement onDestroy() and save it. Where you save it (flat file, > SharedPreferences, database, the Internet) is up to you. > > Bear in mind that onDestroy() may also be called in the case of a screen > rot

[android-beginners] Re: onSaveInstanceState question

2009-09-11 Thread Jose Ayerdis
You are so right!! 2009/9/11 Mark Murphy > > jason wrote: > > How does one then save and restore the application state when > > the Back key is pressed and then the application is brought to > > foreground? > > When the BACK button is pressed, the currently-running activity is > destroyed, not p

[android-beginners] Re: onSaveInstanceState question

2009-09-11 Thread Mark Murphy
jason wrote: > How does one then save and restore the application state when > the Back key is pressed and then the application is brought to > foreground? When the BACK button is pressed, the currently-running activity is destroyed, not put in the background. If you wish to save something when