Yes. This is perfect for use in the Surface view. The first code snippet can go anyplace. The relayout call should go where the // Do Stuff Here comment is.
The second bit should go where you want to call relayout at (but can't because it's in the background thread). On Fri, Feb 26, 2010 at 1:26 PM, social hub <[email protected]> wrote: > in this case I am doing inside a surfaceview does the same apply even for > surfaceview. > > Thanks for your feedback. > > > On Fri, Feb 26, 2010 at 3:17 PM, Gaunt Face > <[email protected]>wrote: > >> What I think you need to do is set up a Handler between the main >> activity and your background thread('s). >> >> Basically a Handler is a way to communicate between the main UI thread >> and background threads, this way anything that must be done on the UI >> event can be achieved by sending a message from the background thread >> through the handler, you then override the handleMessage function in >> the Handler and your good to go: >> >> mUIHandler = new Handler() { >> >> public void handleMessage(Message msg) >> { >> if(msg.arg1 == SOME_CONSTANT) >> { >> // Do Stuff Here >> } >> } >> >> }; >> >> >> Then in your background thread you'd do something like: >> >> Message msg = Message.obtain(); >> msg.arg1 = SOME_CONSTANT; >> >> mUIHandler.sendMessage(msg); >> >> Hope that helps, >> Matt >> >> On Feb 26, 5:05 pm, social hub <[email protected]> wrote: >> > Guys, >> > >> > I almost there of what i want to do but i am stuck at a point where I >> need >> > some expert pointers >> > >> > this is what i do so far >> > >> > I have rectangle white box >> > >> > on cliking the rectangle I will draw a toolbar beneath the box and also >> call >> > relayout to accomodate the toolbar ( size+100) ( i used surfaceview and >> in >> > secondary thread i draw the toolbar) >> > >> > on click again on rectangle box it will disappear the toolbar and also >> has >> > to resize the layout to original size (ie size-100) this is where I get >> > stuck. >> > >> > I can disappear the toolbar however I cant call relayout either from >> > secondary thread (says cant call from secondary thread). >> > >> > So I created a while loop in onlayout( this is where i create a thread >> to >> > draw the toolbar) if i call requestlayout after while loop ends it >> doesnt >> > do anything it doesnt call onmeasure etc. >> > >> > Please help me where I am doing wrong. >> >> -- >> 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
