Using Activity Manager, operating on the HistoryRecord list Guobin
2010/2/9 sheng wang <[email protected]> > Hi GuoBin, > > 1. My translucent activity will be the root acitivity, and very possible > the home screen will be just behind, but what is the programmable way that > can get a activity variable equals to the Home Launcher ? > > > > 2010/2/8 Guobin <[email protected]> > >> 1. Possibly there are ways to find the activity behind the current >> >> one. >> Precondition: All activity are fullscreen. >> If your activity is the root activity, then Home is in behind. >> Otherwise find the previous activity in the task stack. >> > > 1. My translucent activity will be the root acitivity, and very possible > the home screen will be just behind, but what is the programmable way that > can get a activity variable equals to the Home Launcher in my activity? > > >> 2. You could send the touch event to other activity, but it's useless >> I think. >> The Android Window Mananger can only handle UI events for one view >> hirarchy at one time. >> May you send the event to the other activity, but no one can handle >> it. >> > > 2. In my understanding the activity behind in OnResume status, but it's > still running. I'm really not sure about that I will try some test on it . > > >> >> BRs >> Guobin >> >> On Feb 8, 12:50 pm, sheng wang <[email protected]> wrote: >> > Hi GuoBin, >> > >> > I understand what u mean below. I think that's the standard way the >> android >> > deal with the event. Event goes through a current path within the >> activity. >> > No event will go out of the current activity. >> > >> > As a surround way, is there any method that can let the current activity >> > find out who is behind him? so he might communicate with the one behind >> > it? >> > >> > Anyway, think you for taking your time to think the question. >> > >> > Shawn. >> > >> > 2010/2/8 Guobin <[email protected]> >> > >> > > > 1. Whether the event can be send down to any thing behind the >> current >> > > > activity. >> > > No, you can't. >> > > On the Android platform, you define an Activity's UI using a hierarchy >> > > of View and ViewGroup nodes. >> > > Home & your activity are different activity, they have their own view >> > > hierarchy. >> > > Key events are always delivered to the View currently in focus. They >> > > are dispatched starting from the top of the View hierarchy, and then >> > > down, until they reach the appropriate destination. >> > > But not the view of other activity. >> > >http://developer.android.com/guide/topics/ui/ui-events.html >> > >> > > Guobin >> > >> > > -- >> > > You received this message because you are subscribed to the Google >> > > Groups "Android Developers" group. >> > > To post to this group, send email to >> [email protected] >> > > To unsubscribe from this group, send email to >> > > [email protected]<android-developers%[email protected]> >> <android-developers%[email protected]<android-developers%[email protected]> >> > >> > > 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 [email protected] >> To unsubscribe from this group, send email to >> [email protected]<android-developers%[email protected]> >> 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 [email protected] > To unsubscribe from this group, send email to > [email protected]<android-developers%[email protected]> > 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
