Merge "Low ram devices recents list is throwable" into oc-mr1-dev (b49fa218) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewScroller.java

+18 −5

Original line number	Diff line number	Diff line
		@@ -89,6 +89,9 @@ public class TaskStackViewScroller {
		mContext = context;
		mCb = cb;
		mScroller = new OverScroller(context);
		if (Recents.getConfiguration().isLowRamDevice) {
		mScroller.setFriction(0.06f);
		}
		mLayoutAlgorithm = layoutAlgorithm;
		mFlingAnimationUtils = new FlingAnimationUtils(context, 0.3f);
		}
		@@ -195,7 +198,6 @@ public class TaskStackViewScroller {
		return Float.compare(getScrollAmountOutOfBounds(mStackScrollP), 0f) != 0;
		}


		/**
		* Scrolls the closest task and snaps into place. Only used in recents for low ram devices.
		* @param velocity of scroll
		@@ -208,19 +210,30 @@ public class TaskStackViewScroller {
		\|\| stackScroll > mLayoutAlgorithm.mMaxScrollP) {
		return;
		}

		TaskStackLowRamLayoutAlgorithm algorithm = mLayoutAlgorithm.mTaskStackLowRamLayoutAlgorithm;
		float newScrollP = algorithm.getClosestTaskP(stackScroll,
		mLayoutAlgorithm.mNumStackTasks, velocity);
		float flingThreshold = ViewConfiguration.get(mContext).getScaledMinimumFlingVelocity();

		float flingThreshold = ViewConfiguration.get(mContext).getScaledMinimumFlingVelocity();
		if (Math.abs(velocity) > flingThreshold) {
		int minY = algorithm.percentageToScroll(mLayoutAlgorithm.mMinScrollP);
		int maxY = algorithm.percentageToScroll(mLayoutAlgorithm.mMaxScrollP);

		// Calculate the fling and snap to closest task from final y position, computeScroll()
		// never runs when cancelled with animateScroll() and the overscroll is not calculated
		// here
		fling(0 /* downScrollP /, 0 / downY */, algorithm.percentageToScroll(stackScroll),
		-velocity, minY, maxY, 0 /* overscroll */);
		float pos = algorithm.scrollToPercentage(mScroller.getFinalY());

		float newScrollP = algorithm.getClosestTaskP(pos, mLayoutAlgorithm.mNumStackTasks,
		velocity);
		ValueAnimator animator = ObjectAnimator.ofFloat(stackScroll, newScrollP);
		mFlingAnimationUtils.apply(animator, algorithm.percentageToScroll(stackScroll),
		algorithm.percentageToScroll(newScrollP), velocity);
		animateScroll(newScrollP, (int) animator.getDuration(), animator.getInterpolator(),
		null /* postRunnable */);
		} else {
		float newScrollP = algorithm.getClosestTaskP(stackScroll,
		mLayoutAlgorithm.mNumStackTasks, velocity);
		animateScroll(newScrollP, 300, Interpolators.ACCELERATE_DECELERATE,
		null /* postRunnable */);
		}