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Adding overscroll to Workspace, AllApps and Customize

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-Also modified the background alpha interpolation during scrolling

Change-Id: I68db8fbe80f720c507ab3208d8b3dcd8aa4f2081
This commit is contained in:
Adam Cohen
2010-11-15 10:50:58 -08:00
parent c0bd58837a
commit 68d739365b
3 changed files with 101 additions and 41 deletions
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8
src/com/android/launcher2/SmoothPagedView.java
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@@ -138,7 +138,7 @@ public abstract class SmoothPagedView extends PagedView {
final int screenDelta = Math.max(1, Math.abs(whichPage - mCurrentPage));
final int newX = getChildOffset(whichPage) - getRelativeChildOffset(whichPage);
final int delta = newX - mScrollX;
final int delta = newX - mUnboundedScrollX;
int duration;
if (mScrollMode == OVERSHOOT_MODE) {
duration = (screenDelta + 1) * 100;
@@ -180,8 +180,9 @@ public abstract class SmoothPagedView extends PagedView {
if (!scrollComputed && mTouchState == TOUCH_STATE_SCROLLING) {
final float now = System.nanoTime() / NANOTIME_DIV;
final float e = (float) Math.exp((now - mSmoothingTime) / SMOOTHING_CONSTANT);
final float dx = mTouchX - mScrollX;
mScrollX += dx * e;
final float dx = mTouchX - mUnboundedScrollX;
scrollTo(Math.round(mUnboundedScrollX + dx * e), mScrollY);
mSmoothingTime = now;
// Keep generating points as long as we're more than 1px away from the target
@@ -189,5 +190,6 @@ public abstract class SmoothPagedView extends PagedView {
invalidate();
}
}
}
}