Why are you using your own fling mechanism with GestureDetector? ScrollView already handles all of that.
On Mon, Mar 30, 2009 at 2:18 PM, AlCapwn <[email protected]> wrote: > > > On Mar 30, 9:40 pm, Romain Guy <[email protected]> wrote: >> How is your scrolling implemented exactly? > > It just uses a ScrollView. > >> What is the view hierarchy? > ViewFlipper with children which have this layout: > > RelativeLayout > -> Image Button > -> ImageButton > -> EditText > -> LinearLayout (used only for a context menu, not visible or > focusable) > -> Scrollview > -> TextView > > The same onTouch and gesture listeners are used by the scrollview (for > trying to detect when to not autoscroll) and the textview (for fling > gestures). I've tried using only 1 view for this, but it didn't work. > Removing the listeners have no effect on the scrolling it seems. The > listeners themselves do nothing overly special, just try to detect a > gesture using the motion events and check if scrolling should be > stopped. > >> Have you tried profiling? > > Plenty of times. The trace shows 91% if spent in > GestureDetector#onTouchEvent and the rest in some small computations I > do. > > I've also tried removing some text from the textview occasionally and > it helps but I dont see why the scrolling would be that badly affected > with 400 lines of text. > > Thanks. > >> On Mon, Mar 30, 2009 at 1:39 PM, Al <[email protected]> wrote: >> >> > Currently, attempting to scroll when the textview has large amount of >> > text makes the app completely unresponsive. It doesnt ANR, but it >> > doesn't respond either. I've tried occasionally removing some text >> > from the textview and removing some spans also, but it doesnt seem to >> > help much. Any idea how to improve scrolling? It takes ages to scroll >> > up or down. I also tried throttling touch events but it hasnt helped >> > either. >> >> -- >> Romain Guy >> Android framework engineer >> [email protected] >> >> Note: please don't send private questions to me, as I don't have time >> to provide private support. All such questions should be posted on >> public forums, where I and others can see and answer them > > > -- Romain Guy Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support. 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. 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 -~----------~----~----~----~------~----~------~--~---
