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am 9f44ea8f: am 54daab10: Merge "Improve fling physics for recents" into lmp-mr1-dev

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* commit '9f44ea8fbcee80816f4ce6eeca2568ccd06d5a15':
  Improve fling physics for recents
This commit is contained in:
Jorim Jaggi
2014-12-04 21:47:35 +00:00
committed by Android Git Automerger
parent b6d16dc53f 9f44ea8fbc
commit 638e8068d2
2 changed files with 7 additions and 16 deletions
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4
packages/SystemUI/src/com/android/systemui/recents/views/SwipeHelper.java
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@@ -50,7 +50,6 @@ public class SwipeHelper {
private float SWIPE_ESCAPE_VELOCITY = 100f; // dp/sec private float SWIPE_ESCAPE_VELOCITY = 100f; // dp/sec
private int DEFAULT_ESCAPE_ANIMATION_DURATION = 75; // ms private int DEFAULT_ESCAPE_ANIMATION_DURATION = 75; // ms
private int MAX_ESCAPE_ANIMATION_DURATION = 150; // ms private int MAX_ESCAPE_ANIMATION_DURATION = 150; // ms
private int MAX_DISMISS_VELOCITY = 2000; // dp/sec
private static final int SNAP_ANIM_LEN = SLOW_ANIMATIONS ? 1000 : 250; // ms private static final int SNAP_ANIM_LEN = SLOW_ANIMATIONS ? 1000 : 250; // ms
public static float ALPHA_FADE_START = 0.15f; // fraction of thumbnail width public static float ALPHA_FADE_START = 0.15f; // fraction of thumbnail width
@@ -350,8 +349,7 @@ public class SwipeHelper {
} }
private void endSwipe(VelocityTracker velocityTracker) { private void endSwipe(VelocityTracker velocityTracker) {
float maxVelocity = MAX_DISMISS_VELOCITY * mDensityScale; velocityTracker.computeCurrentVelocity(1000 /* px/sec */);
velocityTracker.computeCurrentVelocity(1000 /* px/sec */, maxVelocity);
float velocity = getVelocity(velocityTracker); float velocity = getVelocity(velocityTracker);
float perpendicularVelocity = getPerpendicularVelocity(velocityTracker); float perpendicularVelocity = getPerpendicularVelocity(velocityTracker);
float escapeVelocity = SWIPE_ESCAPE_VELOCITY * mDensityScale; float escapeVelocity = SWIPE_ESCAPE_VELOCITY * mDensityScale;

19
packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
View File

@@ -143,22 +143,21 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
// Initialize the velocity tracker // Initialize the velocity tracker
initOrResetVelocityTracker(); initOrResetVelocityTracker();
mVelocityTracker.addMovement(createMotionEventForStackScroll(ev)); mVelocityTracker.addMovement(createMotionEventForStackScroll(ev));
// Check if the scroller is finished yet
mIsScrolling = mScroller.isScrolling();
break; break;
} }
case MotionEvent.ACTION_MOVE: { case MotionEvent.ACTION_MOVE: {
if (mActivePointerId == INACTIVE_POINTER_ID) break; if (mActivePointerId == INACTIVE_POINTER_ID) break;
// Initialize the velocity tracker if necessary
initVelocityTrackerIfNotExists();
mVelocityTracker.addMovement(createMotionEventForStackScroll(ev));
int activePointerIndex = ev.findPointerIndex(mActivePointerId); int activePointerIndex = ev.findPointerIndex(mActivePointerId);
int y = (int) ev.getY(activePointerIndex); int y = (int) ev.getY(activePointerIndex);
int x = (int) ev.getX(activePointerIndex); int x = (int) ev.getX(activePointerIndex);
if (Math.abs(y - mInitialMotionY) > mScrollTouchSlop) { if (Math.abs(y - mInitialMotionY) > mScrollTouchSlop) {
// Save the touch move info // Save the touch move info
mIsScrolling = true; mIsScrolling = true;
// Initialize the velocity tracker if necessary
initVelocityTrackerIfNotExists();
mVelocityTracker.addMovement(createMotionEventForStackScroll(ev));
// Disallow parents from intercepting touch events // Disallow parents from intercepting touch events
final ViewParent parent = mSv.getParent(); final ViewParent parent = mSv.getParent();
if (parent != null) { if (parent != null) {
@@ -237,6 +236,8 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
case MotionEvent.ACTION_MOVE: { case MotionEvent.ACTION_MOVE: {
if (mActivePointerId == INACTIVE_POINTER_ID) break; if (mActivePointerId == INACTIVE_POINTER_ID) break;
mVelocityTracker.addMovement(createMotionEventForStackScroll(ev));
int activePointerIndex = ev.findPointerIndex(mActivePointerId); int activePointerIndex = ev.findPointerIndex(mActivePointerId);
int x = (int) ev.getX(activePointerIndex); int x = (int) ev.getX(activePointerIndex);
int y = (int) ev.getY(activePointerIndex); int y = (int) ev.getY(activePointerIndex);
@@ -246,9 +247,6 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
if (!mIsScrolling) { if (!mIsScrolling) {
if (yTotal > mScrollTouchSlop) { if (yTotal > mScrollTouchSlop) {
mIsScrolling = true; mIsScrolling = true;
// Initialize the velocity tracker
initOrResetVelocityTracker();
mVelocityTracker.addMovement(createMotionEventForStackScroll(ev));
// Disallow parents from intercepting touch events // Disallow parents from intercepting touch events
final ViewParent parent = mSv.getParent(); final ViewParent parent = mSv.getParent();
if (parent != null) { if (parent != null) {
@@ -267,11 +265,6 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
/ maxOverScroll)); / maxOverScroll));
} }
mScroller.setStackScroll(curStackScroll + deltaP); mScroller.setStackScroll(curStackScroll + deltaP);
if (mScroller.isScrollOutOfBounds()) {
mVelocityTracker.clear();
} else {
mVelocityTracker.addMovement(createMotionEventForStackScroll(ev));
}
} }
mLastMotionX = x; mLastMotionX = x;
mLastMotionY = y; mLastMotionY = y;