Hey Jeff I've tried what you have here but It doesn't work... I'm not sure I understand how this works...
I create this FlipLayout and gave it a background drawable. I added this layout than to my main view. I can see the FlipLayout but I don't see it rotated 45 degrees which is the amount I wanted to rotate... Could you help me out? thanks! Moto! On Jul 27, 12:53 pm, Jeff Sharkey <[email protected]> wrote: > Ah yes, that's what I was missing. :) > > j > > > > On Mon, Jul 27, 2009 at 8:22 AM, Romain Guy<[email protected]> wrote: > > > Your solution might not always work because you do not save/restore > > the Canvas in dispatchDraw(). > > > On Mon, Jul 27, 2009 at 2:46 AM, Jeff Sharkey<[email protected]> wrote: > > >> It's actually really easy, and you don't need to use animations. I > >> did something like this recently by using a wrapper layout that > >> adjusts the Canvas and any MotionEvents. (You could also use this > >> approach rotate the entire layout to any arbitraryangle.) > > >> I think romainguy told me to use Canvas.concat(mForward) instead of > >> setMatrix(), but I haven't updated the code in awhile. > > >> private static class FlipLayout extends FrameLayout { > >> private Matrix mForward = new Matrix(); > >> private Matrix mReverse = new Matrix(); > >> private float[] mTemp = new float[2]; > > >> public FlipLayout(Context context) { > >> super(context); > > >> mForward.postRotate(180); > >> mForward.invert(mReverse); > >> } > > >> �...@override > >> protected void dispatchDraw(Canvas canvas) { > >> canvas.setMatrix(mForward); > >> super.dispatchDraw(canvas); > >> } > > >> �...@override > >> public boolean dispatchTouchEvent(MotionEvent event) { > >> final float[] temp = mTemp; > >> temp[0] = event.getX(); > >> temp[1] = event.getY(); > > >> mReverse.mapPoints(temp); > > >> event.setLocation(temp[0], temp[1]); > >> return super.dispatchTouchEvent(event); > >> } > >> } > > >> On Fri, Jul 24, 2009 at 10:53 PM, Josh Hoffman<[email protected]> wrote: > > >>> I posted earlier today on this topic, but I'm re-posting as I haven't > >>> been able to locate my post via search. I apologize if this is indeed > >>> a double-post, but it seems something went wrong with the original. > > >>> I've been trying to find a means of rotating a view such that it is > >>> flipped upside-down and stays that way. I found the Rotation Animation > >>> method, but I have been unable to find a means of keeping the view > >>> rotated. Repeating the animation doesn't suit my purposes, and in fact > >>> I don't want an animation at all if possible. What I would like is > >>> something akin to a transformation, except to be used on aTextViewor > >>> a LinearLayout. > > >>> I have considering overriding methods to accomplish this task by > >>> slightly modifying the animation code, but I'm not sure how extensive > >>> the work for this would be. Additionally, I'm not sure where to find > >>> the source for those methods. > > >>> If anyone could recommend a means of accomplishing this task, whether > >>> it be by an override or perhaps something simple that I am missing, I > >>> would appreciate it very much. Thanks! > > >> -- > >> Jeff Sharkey > >> [email protected] > > > -- > > 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 > > -- > Jeff Sharkey > [email protected] --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
