Merge "Allow swipe-dismiss in either direction" into sc-dev (000b1d74) · Commits · e / os / android_frameworks_base

packages/SystemUI/res/values/dimens.xml

+0 −1

Original line number	Diff line number	Diff line
		@@ -334,7 +334,6 @@
		<dimen name="screenshot_action_container_corner_radius">10dp</dimen>
		<dimen name="screenshot_action_container_padding_vertical">6dp</dimen>
		<dimen name="screenshot_action_container_margin_horizontal">8dp</dimen>
		<dimen name="screenshot_action_container_padding_left">96dp</dimen>
		<dimen name="screenshot_action_container_padding_right">8dp</dimen>
		<!-- Radius of the chip background on global screenshot actions -->
		<dimen name="screenshot_button_corner_radius">20dp</dimen>

packages/SystemUI/src/com/android/systemui/screenshot/ScreenshotView.java

+44 −79

Original line number	Diff line number	Diff line
		@@ -142,6 +142,8 @@ public class ScreenshotView extends FrameLayout implements
		private ScreenshotViewCallback mCallbacks;
		private Animator mDismissAnimation;
		private boolean mPendingSharedTransition;
		private GestureDetector mSwipeDetector;
		private SwipeDismissHandler mSwipeDismissHandler;

		private final ArrayList<ScreenshotActionChip> mSmartChips = new ArrayList<>();
		private PendingInteraction mPendingInteraction;
		@@ -181,6 +183,23 @@ public class ScreenshotView extends FrameLayout implements
		mContext.getDisplay().getRealMetrics(mDisplayMetrics);

		mAccessibilityManager = AccessibilityManager.getInstance(mContext);

		mSwipeDetector = new GestureDetector(mContext,
		new GestureDetector.SimpleOnGestureListener() {
		final Rect mActionsRect = new Rect();

		@Override
		public boolean onScroll(
		MotionEvent ev1, MotionEvent ev2, float distanceX, float distanceY) {
		mActionsContainer.getBoundsOnScreen(mActionsRect);
		// return true if we aren't in the actions bar, or if we are but it isn't
		// scrollable in the direction of movement
		return !mActionsRect.contains((int) ev2.getRawX(), (int) ev2.getRawY())
		\|\| !mActionsContainer.canScrollHorizontally((int) distanceX);
		}
		});
		mSwipeDetector.setIsLongpressEnabled(false);
		mSwipeDismissHandler = new SwipeDismissHandler();
		}

		/**
		@@ -230,6 +249,15 @@ public class ScreenshotView extends FrameLayout implements
		inoutInfo.touchableRegion.set(touchRegion);
		}

		@Override // ViewGroup
		public boolean onInterceptTouchEvent(MotionEvent ev) {
		// always pass through the down event so the swipe handler knows the initial state
		if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
		mSwipeDismissHandler.onTouch(this, ev);
		}
		return mSwipeDetector.onTouchEvent(ev);
		}

		@Override // View
		protected void onFinishInflate() {
		mScreenshotStatic = requireNonNull(findViewById(R.id.global_screenshot_static));
		@@ -455,11 +483,7 @@ public class ScreenshotView extends FrameLayout implements

		createScreenshotActionsShadeAnimation().start();

		SwipeDismissHandler swipeDismissHandler = new SwipeDismissHandler();
		mScreenshotPreview.setOnTouchListener(swipeDismissHandler);
		mActionsContainer.setOnTouchListener(swipeDismissHandler);
		mActionsContainerBackground.setOnTouchListener(swipeDismissHandler);
		mBackgroundProtection.setOnTouchListener(swipeDismissHandler);
		setOnTouchListener(mSwipeDismissHandler);
		}
		});

		@@ -776,30 +800,16 @@ public class ScreenshotView extends FrameLayout implements
		}

		class SwipeDismissHandler implements OnTouchListener {

		// if distance moved on ACTION_UP is less than this, register a click
		// otherwise, run return animator
		private static final float CLICK_MOVEMENT_THRESHOLD_DP = 1;
		// distance needed to register a dismissal
		private static final float DISMISS_DISTANCE_THRESHOLD_DP = 30;

		private final GestureDetector mGestureDetector;
		private final float mDismissStartX;
		private final Rect mActionsRect = new Rect();

		private float mStartX;
		private float mStartY;
		private float mTranslationX = 0;

		// tracks whether mStartX has been set for this interaction
		private boolean mInteractionStarted = false;
		// tracks whether we're dragging the UI (as opposed to scrolling the actions bar)
		private boolean mIsDragging = false;

		SwipeDismissHandler() {
		GestureDetector.OnGestureListener gestureListener = new SwipeDismissGestureListener();
		mGestureDetector = new GestureDetector(mContext, gestureListener);
		mDismissStartX = mDismissButton.getX();
		}

		@Override
		@@ -807,13 +817,9 @@ public class ScreenshotView extends FrameLayout implements
		boolean gestureResult = mGestureDetector.onTouchEvent(event);
		mCallbacks.onUserInteraction();
		if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
		mInteractionStarted = true;
		mStartX = event.getRawX();
		mStartY = event.getRawY();
		return true;
		} else if (event.getActionMasked() == MotionEvent.ACTION_UP) {
		mInteractionStarted = false;
		mIsDragging = false;
		if (isPastDismissThreshold()
		&& (mDismissAnimation == null \|\| !mDismissAnimation.isRunning())) {
		if (DEBUG_INPUT) {
		@@ -821,87 +827,47 @@ public class ScreenshotView extends FrameLayout implements
		}
		mUiEventLogger.log(ScreenshotEvent.SCREENSHOT_SWIPE_DISMISSED);
		animateDismissal(createSwipeDismissAnimation());
		return true;
		} else if (MathUtils.dist(mStartX, mStartY, event.getRawX(), event.getRawY())
		> dpToPx(CLICK_MOVEMENT_THRESHOLD_DP)) {
		// if we've moved a non-negligible distance (but not past the threshold),
		} else {
		// if we've moved, but not past the threshold, start the return animation
		if (DEBUG_DISMISS) {
		Log.d(TAG, "swipe gesture abandoned");
		}
		// start the return animation
		if ((mDismissAnimation == null \|\| !mDismissAnimation.isRunning())) {
		createSwipeReturnAnimation().start();
		}
		return true;
		} else {
		if (view == mScreenshotPreview) {
		mScreenshotPreview.performClick();
		}
		}
		return true;
		}
		return gestureResult;
		}

		class SwipeDismissGestureListener extends GestureDetector.SimpleOnGestureListener {

		/**
		* This is somewhat complicated to handle because we want to allow scrolling the actions
		* bar (if it extends off the screen) as well as dismissing the UI horizontally by
		* dragging the actions bar. In addition, we don't get the initial ACTION_DOWN because
		* it is consumed by the action bar view.
		*
		* So, we use a gated system: first, keep track of the pointer location as we move;
		* next, check whether the actions bar can scroll in the direction we're moving in. If
		* it can, let the actions bar handle the event; otherwise, we've gone as far as we can
		* and can start dragging the UI instead.
		*/
		@Override
		public boolean onScroll(
		MotionEvent ev1, MotionEvent ev2, float distanceX, float distanceY) {
		mActionsContainer.getBoundsOnScreen(mActionsRect);
		if (!mInteractionStarted) {
		if (mActionsRect.contains((int) ev2.getRawX(), (int) ev2.getRawY())) {
		mStartX = ev2.getRawX();
		mInteractionStarted = true;
		}
		} else {
		float distance = ev2.getRawX() - mStartX;
		if ((mIsDragging && distance * mTranslationX > 0)
		\|\| !mActionsRect.contains((int) ev2.getRawX(), (int) ev2.getRawY())
		\|\| !mActionsContainer.canScrollHorizontally(-1 * (int) distance)) {
		mIsDragging = true;
		mTranslationX = distance;
		mScreenshotStatic.setTranslationX(mTranslationX);
		mScreenshotStatic.setTranslationX(ev2.getRawX() - mStartX);
		return true;
		} else {
		mStartX = ev2.getRawX();
		}
		}
		return false;
		}
		}

		private boolean isPastDismissThreshold() {
		if (mDirectionLTR) {
		return mTranslationX <= -1 * dpToPx(DISMISS_DISTANCE_THRESHOLD_DP);
		} else {
		return mTranslationX >= dpToPx(DISMISS_DISTANCE_THRESHOLD_DP);
		}
		float distance = Math.abs(mScreenshotStatic.getTranslationX());
		return distance >= dpToPx(DISMISS_DISTANCE_THRESHOLD_DP);
		}

		private ValueAnimator createSwipeDismissAnimation() {
		ValueAnimator anim = ValueAnimator.ofFloat(0, 1);
		float startX = mTranslationX;
		float finalX = mDirectionLTR
		? -1 * (mActionsContainerBackground.getX()
		+ mActionsContainerBackground.getWidth())
		float startX = mScreenshotStatic.getTranslationX();
		// make sure the UI gets all the way off the screen in the direction of movement
		// (the actions container background is guaranteed to be both the leftmost and
		// rightmost UI element in LTR and RTL)
		float finalX = startX < 0
		? -1 * mActionsContainerBackground.getRight()
		: mDisplayMetrics.widthPixels;

		anim.addUpdateListener(animation -> {
		float translation = MathUtils.lerp(startX, finalX,
		animation.getAnimatedFraction());
		float translation = MathUtils.lerp(startX, finalX, animation.getAnimatedFraction());
		mScreenshotStatic.setTranslationX(translation);

		setAlpha(1 - animation.getAnimatedFraction());
		});
		anim.setDuration(400);
		@@ -910,9 +876,8 @@ public class ScreenshotView extends FrameLayout implements

		private ValueAnimator createSwipeReturnAnimation() {
		ValueAnimator anim = ValueAnimator.ofFloat(0, 1);
		float startX = mTranslationX;
		float startX = mScreenshotStatic.getTranslationX();
		float finalX = 0;
		mTranslationX = 0;

		anim.addUpdateListener(animation -> {
		float translation = MathUtils.lerp(