Implement ability to fling to QS in empty space (dc96d631) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java

+57 −7

Original line number	Diff line number	Diff line
		@@ -76,6 +76,12 @@ public class NotificationPanelView extends PanelView implements
		private VelocityTracker mVelocityTracker;
		private boolean mQsTracking;

		/**
		* If set, the ongoing touch gesture might both trigger the expansion in {@link PanelView} and
		* the expansion for quick settings.
		*/
		private boolean mConflictingQsExpansionGesture;

		/**
		* Whether we are currently handling a motion gesture in #onInterceptTouchEvent, but haven't
		* intercepted yet.
		@@ -423,11 +429,21 @@ public class NotificationPanelView extends PanelView implements

		private void flingQsWithCurrentVelocity() {
		float vel = getCurrentVelocity();
		flingSettings(vel, flingExpandsQs(vel));
		}

		// TODO: Better logic whether we should expand or not.
		flingSettings(vel, vel > 0);
		private boolean flingExpandsQs(float vel) {
		if (Math.abs(vel) < mFlingAnimationUtils.getMinVelocityPxPerSecond()) {
		return getQsExpansionFraction() > 0.5f;
		} else {
		return vel > 0;
		}
		}

		private float getQsExpansionFraction() {
		return (mQsExpansionHeight - mQsMinExpansionHeight)
		/ (mQsMaxExpansionHeight - mQsMinExpansionHeight);
		}
		@Override
		public boolean onTouchEvent(MotionEvent event) {
		if (mBlockTouches) {
		@@ -443,20 +459,48 @@ public class NotificationPanelView extends PanelView implements
		return true;
		}
		}
		if (event.getActionMasked() == MotionEvent.ACTION_DOWN && getExpandedFraction() == 1f
		&& mStatusBar.getBarState() != StatusBarState.KEYGUARD) {

		// Down in the empty area while fully expanded - go to QS.
		mQsTracking = true;
		mConflictingQsExpansionGesture = true;
		onQsExpansionStarted();
		mInitialHeightOnTouch = mQsExpansionHeight;
		mInitialTouchY = event.getX();
		mInitialTouchX = event.getY();
		}
		if (mQsTracking \|\| mQsExpanded) {
		return onQsTouch(event);
		onQsTouch(event);
		if (!mConflictingQsExpansionGesture) {
		return true;
		}
		}
		if (event.getActionMasked() == MotionEvent.ACTION_CANCEL
		\|\| event.getActionMasked() == MotionEvent.ACTION_UP) {
		mConflictingQsExpansionGesture = false;
		}

		super.onTouchEvent(event);
		return true;
		}

		@Override
		protected boolean flingExpands(float vel, float vectorVel) {
		boolean expands = super.flingExpands(vel, vectorVel);

		// If we are already running a QS expansion, make sure that we keep the panel open.
		if (mQsExpansionAnimator != null) {
		expands = true;
		}
		return expands;
		}

		@Override
		protected boolean hasConflictingGestures() {
		return mStatusBar.getBarState() != StatusBarState.SHADE;
		}

		private boolean onQsTouch(MotionEvent event) {
		private void onQsTouch(MotionEvent event) {
		int pointerIndex = event.findPointerIndex(mTrackingPointer);
		if (pointerIndex < 0) {
		pointerIndex = 0;
		@@ -501,14 +545,17 @@ public class NotificationPanelView extends PanelView implements
		mQsTracking = false;
		mTrackingPointer = -1;
		trackMovement(event);
		float fraction = getQsExpansionFraction();
		if ((fraction != 0f \|\| y >= mInitialTouchY)
		&& (fraction != 1f \|\| y <= mInitialTouchY)) {
		flingQsWithCurrentVelocity();
		}
		if (mVelocityTracker != null) {
		mVelocityTracker.recycle();
		mVelocityTracker = null;
		}
		break;
		}
		return true;
		}

		@Override
		@@ -894,6 +941,9 @@ public class NotificationPanelView extends PanelView implements

		@Override
		protected void setOverExpansion(float overExpansion, boolean isPixels) {
		if (mConflictingQsExpansionGesture) {
		return;
		}
		if (mStatusBar.getBarState() != StatusBarState.KEYGUARD) {
		mNotificationStackScroller.setOnHeightChangedListener(null);
		if (isPixels) {

packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java

+4 −1

Original line number	Diff line number	Diff line
		@@ -301,6 +301,8 @@ public abstract class PanelView extends FrameLayout {
		mTrackingPointer = -1;
		trackMovement(event);
		if ((mTracking && mTouchSlopExceeded)
		\|\| Math.abs(x - mInitialTouchX) > mTouchSlop
		\|\| Math.abs(y - mInitialTouchY) > mTouchSlop
		\|\| event.getActionMasked() == MotionEvent.ACTION_CANCEL) {
		float vel = 0f;
		float vectorVel = 0f;
		@@ -317,6 +319,7 @@ public abstract class PanelView extends FrameLayout {
		boolean expands = onEmptySpaceClick(mInitialTouchX);
		onTrackingStopped(expands);
		}

		if (mVelocityTracker != null) {
		mVelocityTracker.recycle();
		mVelocityTracker = null;
		@@ -447,7 +450,7 @@ public abstract class PanelView extends FrameLayout {
		* @param vectorVel the length of the vectorial velocity
		* @return whether a fling should expands the panel; contracts otherwise
		*/
		private boolean flingExpands(float vel, float vectorVel) {
		protected boolean flingExpands(float vel, float vectorVel) {
		if (Math.abs(vectorVel) < mFlingAnimationUtils.getMinVelocityPxPerSecond()) {
		return getExpandedFraction() > 0.5f;
		} else {