Nice catch... I never noticed that before. Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware
On Fri, Jul 20, 2012 at 9:07 AM, RichardC <richard.crit...@googlemail.com>wrote: > And not even your UI: > > *" The default implementation takes care of most of the UI per-instance > state for you by calling > onSaveInstanceState()<http://developer.android.com/reference/android/view/View.html#onSaveInstanceState%28%29> > on > each view in the hierarchy that has an id, and by saving the id of the > currently focused view (all of which is restored by the default > implementation of > onRestoreInstanceState(Bundle)<http://developer.android.com/reference/android/app/Activity.html#onRestoreInstanceState%28android.os.Bundle%29>). > If you override this method to save additional information not captured by > each individual view, you will likely want to call through to the default > implementation, otherwise be prepared to save all of the state of each view > yourself. "* > > > http://developer.android.com/reference/android/app/Activity.html#onSaveInstanceState(android.os.Bundle) > > > So any UI object with the same ID in both the old and new context will be > restored by the system > > On Friday, July 20, 2012 3:57:51 PM UTC+1, MagouyaWare wrote: > >> As Mark said earlier... The main purpose of onSaveInstanceState() is to >> save the current state of your UI so you can restore it when the activity >> comes back... That way the rotation appears seamless to the user. >> >> This would mean saving text in EditText objects, or the checked state of >> a CheckBox or RadioButton, etc... That shouldn't take very long to save... >> If you are doing other stuff in there that would need to be moved elsewhere. >> >> Thanks, >> Justin Anderson >> MagouyaWare Developer >> http://sites.google.com/site/**magouyaware<http://sites.google.com/site/magouyaware> >> >> >> On Fri, Jul 20, 2012 at 6:17 AM, Mark Murphy >> xxxxxxxxxxxxxxxxxxxxxxxxx wrote: >> >>> On Fri, Jul 20, 2012 at 8:06 AM, Andrew >>> xxxxxxxxxxxxxxxxxxxxxxxxxxxxx wrote: >>> > Yes, I agree that this probably is freezing UI. But there's a problem >>> here: >>> > this cannot be run on a spawned thread as OS may kill the process right >>> > after this call returns, thus, again, killing the saving thread in the >>> > middle! >>> >>> First, it is rather unlikely that the OS will "kill the process right >>> after this call returns". >>> >>> Second, if you are trying to do anything that takes a while in >>> onSaveInstanceState(), you're doing it wrong. You should be triggering >>> that work in other places (e.g., onPause(), on an explicit action bar >>> item click), and using a background thread in those places as well. >>> For example, onSaveInstanceState() has nothing to do with a persistent >>> data model (e.g., database). >>> >>> Third, as you are discovering, Android may terminate your work >>> *anyway* if you are taking a long time on the main application thread. >>> >>> -- >>> Mark Murphy (a Commons Guy) >>> http://commonsware.com | http://github.com/commonsguy >>> http://commonsware.com/blog | http://twitter.com/commonsguy >>> >>> _The Busy Coder's Guide to Android Development_ Version 3.8 Available! >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To post to this group, send email toxxxxxxxxxxxxxxxxx >>> >>> To unsubscribe from this group, send email to >>> xxxxxxxxxxxxxxxxxxxxx >>> >>> For more options, visit this group at >>> http://groups.google.com/**group/android-developers?hl=en<http://groups.google.com/group/android-developers?hl=en> >>> >> >> -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
