Add container velocity for all apps to be used by the caret (5b647067) · Commits · e / os / BlissLauncher3

src/com/android/launcher3/allapps/AllAppsTransitionController.java

+14 −6

Original line number	Diff line number	Diff line
		@@ -78,7 +78,7 @@ public class AllAppsTransitionController implements TouchController, VerticalPul
		private float mShiftRange; // changes depending on the orientation
		private float mProgress; // [0, 1], mShiftRange * mProgress = shiftCurrent

		private float mVelocityForCaret;
		private float mContainerVelocity;

		private static final float DEFAULT_SHIFT_RANGE = 10;

		@@ -208,7 +208,7 @@ public class AllAppsTransitionController implements TouchController, VerticalPul
		return false; // early termination.
		}

		mVelocityForCaret = velocity;
		mContainerVelocity = velocity;

		float shift = Math.min(Math.max(0, mShiftStart + displacement), mShiftRange);
		setProgress(shift / mShiftRange);
		@@ -305,9 +305,10 @@ public class AllAppsTransitionController implements TouchController, VerticalPul
		}

		/**
		* @param progress value between 0 and 1
		* @param progress value between 0 and 1, 0 shows all apps and 1 shows workspace
		*/
		public void setProgress(float progress) {
		float shiftPrevious = mProgress * mShiftRange;
		mProgress = progress;
		float shiftCurrent = progress * mShiftRange;

		@@ -339,6 +340,15 @@ public class AllAppsTransitionController implements TouchController, VerticalPul
		interpolation);
		updateCaret(progress);
		updateLightStatusBar(shiftCurrent);

		if (!mDetector.isDraggingState()) {
		mContainerVelocity = mDetector.computeVelocity(shiftCurrent - shiftPrevious,
		System.currentTimeMillis());
		}
		}

		public float getContainerVelocity() {
		return mContainerVelocity;
		}

		public float getProgress() {
		@@ -361,7 +371,6 @@ public class AllAppsTransitionController implements TouchController, VerticalPul
		return;
		}
		if (mDetector.isIdleState()) {
		mVelocityForCaret = -VerticalPullDetector.RELEASE_VELOCITY_PX_MS;
		preparePull(true);
		mAnimationDuration = duration;
		mShiftStart = mAppsView.getTranslationY();
		@@ -434,7 +443,6 @@ public class AllAppsTransitionController implements TouchController, VerticalPul
		}
		Interpolator interpolator;
		if (mDetector.isIdleState()) {
		mVelocityForCaret = VerticalPullDetector.RELEASE_VELOCITY_PX_MS;
		preparePull(true);
		mAnimationDuration = duration;
		mShiftStart = mAppsView.getTranslationY();
		@@ -513,7 +521,7 @@ public class AllAppsTransitionController implements TouchController, VerticalPul
		if (0f < shift && shift < 1f && !mLauncher.useVerticalBarLayout()) {
		// How fast are we moving as a percentage of the minimum fling velocity?
		final float pctOfFlingVelocity = Math.max(-1, Math.min(
		mVelocityForCaret / VerticalPullDetector.RELEASE_VELOCITY_PX_MS, 1));
		mContainerVelocity / VerticalPullDetector.RELEASE_VELOCITY_PX_MS, 1));

		mCaretDrawable.setCaretProgress(pctOfFlingVelocity);

src/com/android/launcher3/allapps/VerticalPullDetector.java

+16 −19

Original line number	Diff line number	Diff line
		@@ -93,10 +93,9 @@ public class VerticalPullDetector {

		private float mDownX;
		private float mDownY;
		private float mDownMillis;

		private float mLastY;
		private float mLastMillis;
		private long mCurrentMillis;

		private float mVelocity;
		private float mLastDisplacement;
		@@ -153,7 +152,6 @@ public class VerticalPullDetector {
		public boolean onTouchEvent(MotionEvent ev) {
		switch (ev.getAction()) {
		case MotionEvent.ACTION_DOWN:
		mDownMillis = ev.getDownTime();
		mDownX = ev.getX();
		mDownY = ev.getY();
		mLastDisplacement = 0;
		@@ -167,7 +165,7 @@ public class VerticalPullDetector {
		case MotionEvent.ACTION_MOVE:
		mDisplacementX = ev.getX() - mDownX;
		mDisplacementY = ev.getY() - mDownY;
		mVelocity = computeVelocity(ev, mVelocity);
		computeVelocity(ev);

		// handle state and listener calls.
		if (mState != ScrollState.DRAGGING && shouldScrollStart()) {
		@@ -190,10 +188,7 @@ public class VerticalPullDetector {
		}
		// Do house keeping.
		mLastDisplacement = mDisplacementY;

		mLastY = ev.getY();
		mLastMillis = ev.getEventTime();

		return true;
		}

		@@ -245,21 +240,23 @@ public class VerticalPullDetector {
		/**
		* Computes the damped velocity using the two motion events and the previous velocity.
		*/
		private float computeVelocity(MotionEvent to, float previousVelocity) {
		float delta = computeDelta(to);

		float deltaTimeMillis = to.getEventTime() - mLastMillis;
		float velocity = (deltaTimeMillis > 0) ? (delta / deltaTimeMillis) : 0;
		if (Math.abs(previousVelocity) < 0.001f) {
		return velocity;
		private float computeVelocity(MotionEvent to) {
		return computeVelocity(to.getY() - mLastY, to.getEventTime());
		}

		public float computeVelocity(float delta, long currentMillis) {
		long previousMillis = mCurrentMillis;
		mCurrentMillis = currentMillis;

		float deltaTimeMillis = mCurrentMillis - previousMillis;
		float velocity = (deltaTimeMillis > 0) ? (delta / deltaTimeMillis) : 0;
		if (Math.abs(mVelocity) < 0.001f) {
		mVelocity = velocity;
		} else {
		float alpha = computeDampeningFactor(deltaTimeMillis);
		return interpolate(previousVelocity, velocity, alpha);
		mVelocity = interpolate(mVelocity, velocity, alpha);
		}

		private float computeDelta(MotionEvent to) {
		return to.getY() - mLastY;
		return mVelocity;
		}

		/**