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Making the dismiss animation feel smoother.

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Bug: 27154882
Change-Id: Idbabfe396bc75b598861fd12b78c846f08243a90
This commit is contained in:
Winson
2016-04-15 19:06:54 -07:00
parent 19ecc8ce2d
commit bde852dbf5
3 changed files with 42 additions and 30 deletions
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43
packages/SystemUI/src/com/android/systemui/SwipeHelper.java
View File

@@ -51,11 +51,9 @@ public class SwipeHelper implements Gefingerpoken {
private float SWIPE_ESCAPE_VELOCITY = 100f; // dp/sec
private int DEFAULT_ESCAPE_ANIMATION_DURATION = 200; // ms
private int MAX_ESCAPE_ANIMATION_DURATION = 400; // ms
private int MAX_DISMISS_VELOCITY = 2000; // dp/sec
private int MAX_DISMISS_VELOCITY = 4000; // dp/sec
private static final int SNAP_ANIM_LEN = SLOW_ANIMATIONS ? 1000 : 150; // ms
public static float SWIPE_PROGRESS_FADE_START = 0f; // fraction of thumbnail width
// where fade starts
static final float SWIPE_PROGRESS_FADE_END = 0.5f; // fraction of thumbnail width
// beyond which swipe progress->0
private float mMinSwipeProgress = 0f;
@@ -102,8 +100,7 @@ public class SwipeHelper implements Gefingerpoken {
mFalsingThreshold = context.getResources().getDimensionPixelSize(
R.dimen.swipe_helper_falsing_threshold);
mFalsingManager = FalsingManager.getInstance(context);
mFlingAnimationUtils = new FlingAnimationUtils(context,
MAX_ESCAPE_ANIMATION_DURATION / 1000f /* maxLengthSeconds */);
mFlingAnimationUtils = new FlingAnimationUtils(context, getMaxEscapeAnimDuration() / 1000f);
}
public void setLongPressListener(LongPressListener listener) {
@@ -183,21 +180,23 @@ public class SwipeHelper implements Gefingerpoken {
mMaxSwipeProgress = maxSwipeProgress;
}
private float getSwipeProgressForOffset(View view) {
private float getSwipeProgressForOffset(View view, float translation) {
float viewSize = getSize(view);
final float fadeSize = SWIPE_PROGRESS_FADE_END * viewSize;
float result = 1.0f;
float pos = getTranslation(view);
if (pos >= viewSize * SWIPE_PROGRESS_FADE_START) {
result = 1.0f - (pos - viewSize * SWIPE_PROGRESS_FADE_START) / fadeSize;
} else if (pos < viewSize * (1.0f - SWIPE_PROGRESS_FADE_START)) {
result = 1.0f + (viewSize * SWIPE_PROGRESS_FADE_START + pos) / fadeSize;
}
float result = Math.abs(translation / viewSize);
return Math.min(Math.max(mMinSwipeProgress, result), mMaxSwipeProgress);
}
private float getSwipeAlpha(float progress) {
return Math.min(0, Math.max(1, progress / SWIPE_PROGRESS_FADE_END));
}
private void updateSwipeProgressFromOffset(View animView, boolean dismissable) {
float swipeProgress = getSwipeProgressForOffset(animView);
updateSwipeProgressFromOffset(animView, dismissable, getTranslation(animView));
}
private void updateSwipeProgressFromOffset(View animView, boolean dismissable,
float translation) {
float swipeProgress = getSwipeProgressForOffset(animView, translation);
if (!mCallback.updateSwipeProgress(animView, dismissable, swipeProgress)) {
if (FADE_OUT_DURING_SWIPE && dismissable) {
float alpha = swipeProgress;
@@ -208,7 +207,7 @@ public class SwipeHelper implements Gefingerpoken {
animView.setLayerType(View.LAYER_TYPE_NONE, null);
}
}
animView.setAlpha(getSwipeProgressForOffset(animView));
animView.setAlpha(getSwipeAlpha(swipeProgress));
}
}
invalidateGlobalRegion(animView);
@@ -485,7 +484,7 @@ public class SwipeHelper implements Gefingerpoken {
* view is being animated to dismiss or snap.
*/
public void onTranslationUpdate(View animView, float value, boolean canBeDismissed) {
updateSwipeProgressFromOffset(animView, canBeDismissed);
updateSwipeProgressFromOffset(animView, canBeDismissed, value);
}
private void snapChildInstantly(final View view) {
@@ -600,7 +599,15 @@ public class SwipeHelper implements Gefingerpoken {
}
protected float getEscapeVelocity() {
return SWIPE_ESCAPE_VELOCITY * mDensityScale;
return getUnscaledEscapeVelocity() * mDensityScale;
}
protected float getUnscaledEscapeVelocity() {
return SWIPE_ESCAPE_VELOCITY;
}
protected long getMaxEscapeAnimDuration() {
return MAX_ESCAPE_ANIMATION_DURATION;
}
protected boolean swipedFarEnough() {

27
packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
View File

@@ -60,8 +60,7 @@ import java.util.List;
class TaskStackViewTouchHandler implements SwipeHelper.Callback {
private static final int INACTIVE_POINTER_ID = -1;
private static final Interpolator STACK_TRANSFORM_INTERPOLATOR =
new PathInterpolator(0.73f, 0.33f, 0.42f, 0.85f);
private static final float CHALLENGING_SWIPE_ESCAPE_VELOCITY = 800f; // dp/sec
// The min overscroll is the amount of task progress overscroll we want / the max overscroll
// curve value below
private static final float MAX_OVERSCROLL = 0.7f / 0.3f;
@@ -125,7 +124,7 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
mSwipeHelper = new SwipeHelper(SwipeHelper.X, this, context) {
@Override
protected float getSize(View v) {
return mSv.getWidth();
return getScaledDismissSize();
}
@Override
@@ -138,6 +137,16 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
anim.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
mSwipeHelperAnimations.put(v, anim);
}
@Override
protected float getUnscaledEscapeVelocity() {
return CHALLENGING_SWIPE_ESCAPE_VELOCITY;
}
@Override
protected long getMaxEscapeAnimDuration() {
return 700;
}
};
mSwipeHelper.setDisableHardwareLayers(true);
}
@@ -500,7 +509,7 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
@Override
public boolean updateSwipeProgress(View v, boolean dismissable, float swipeProgress) {
updateTaskViewTransforms(getDismissFraction(v));
updateTaskViewTransforms(Interpolators.FAST_OUT_SLOW_IN.getInterpolation(swipeProgress));
return true;
}
@@ -616,13 +625,9 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
}
/**
* Returns the fraction which we should interpolate the other task views based on the dismissal
* of this given task.
*
* TODO: We can interpolate this to adjust when the other tasks should respond to the dismissal
* Returns the scaled size used to calculate the dismiss fraction.
*/
private float getDismissFraction(View v) {
float fraction = Math.min(1f, Math.abs(v.getTranslationX() / mSv.getWidth()));
return STACK_TRANSFORM_INTERPOLATOR.getInterpolation(fraction);
private float getScaledDismissSize() {
return 1.5f * Math.max(mSv.getWidth(), mSv.getHeight());
}
}

2
packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
View File

@@ -747,7 +747,7 @@ public class NotificationStackScrollLayout extends ViewGroup
public boolean updateSwipeProgress(View animView, boolean dismissable, float swipeProgress) {
if (!mIsExpanded && isPinnedHeadsUp(animView) && canChildBeDismissed(animView)) {
mScrimController.setTopHeadsUpDragAmount(animView,
Math.min(Math.abs(swipeProgress - 1.0f), 1.0f));
Math.min(Math.abs(swipeProgress / 2f - 1.0f), 1.0f));
}
return true; // Don't fade out the notification
}