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Fixing 1-point jump upon switching from DragView to drag shadow.

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Upon the end if the growth animation for DragView, we hide DragView and
show the framework DND drag shadow. Rounding problems caused shifting of the
drag image by 1 pixel when the transition happened.

Bug: 22028725
Change-Id: I2a2275a6d18c1a10ceecaecf8a279c6d11d8c7d8
This commit is contained in:
Vadim Tryshev
2015-08-07 15:09:39 -07:00
parent d07b5cd098
commit 9430ff23c8
1 changed files with 5 additions and 3 deletions
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src/com/android/launcher3/DragView.java
+5 -3
View File
@@ -199,9 +199,11 @@ public class DragView extends View {
public void provideDragShadowMetrics(Point size, Point touch) {
size.set((int)(mBitmap.getWidth() * getScaleX()), (int)(mBitmap.getHeight() * getScaleY()));
final int xGrowth = (int)(mBitmap.getWidth() * (getScaleX() - mInitialScale));
final int yGrowth = (int)(mBitmap.getHeight() * (getScaleY() - mInitialScale));
touch.set(mRegistrationX + xGrowth / 2, mRegistrationY + yGrowth / 2);
final float xGrowth = mBitmap.getWidth() * (getScaleX() - mInitialScale);
final float yGrowth = mBitmap.getHeight() * (getScaleY() - mInitialScale);
touch.set(
mRegistrationX + (int)Math.round(xGrowth / 2),
mRegistrationY + (int)Math.round(yGrowth / 2));
}
@Override