Reuse overlay view between two Visibility transitions (d4376bad) · Commits · e / os / android_frameworks_base

api/current.txt

+2 −1

Original line number	Diff line number	Diff line
		@@ -45785,7 +45785,8 @@ package android.transition {
		}

		public class TransitionValues {
		ctor public TransitionValues();
		ctor public deprecated TransitionValues();
		ctor public TransitionValues(android.view.View);
		field public final java.util.Map<java.lang.String, java.lang.Object> values;
		field public android.view.View view;
		}

core/java/android/transition/Transition.java

+6 −10

Original line number	Diff line number	Diff line
		@@ -531,7 +531,7 @@ public abstract class Transition implements Cloneable {
		View view = unmatchedStart.keyAt(i);
		if (view != null && isValidTarget(view)) {
		TransitionValues end = unmatchedEnd.remove(view);
		if (end != null && end.view != null && isValidTarget(end.view)) {
		if (end != null && isValidTarget(end.view)) {
		TransitionValues start = unmatchedStart.removeAt(i);
		mStartValuesList.add(start);
		mEndValuesList.add(end);
		@@ -738,9 +738,8 @@ public abstract class Transition implements Cloneable {
		if (end != null) {
		view = end.view;
		String[] properties = getTransitionProperties();
		if (view != null && properties != null && properties.length > 0) {
		infoValues = new TransitionValues();
		infoValues.view = view;
		if (properties != null && properties.length > 0) {
		infoValues = new TransitionValues(view);
		TransitionValues newValues = endValues.viewValues.get(view);
		if (newValues != null) {
		for (int j = 0; j < properties.length; ++j) {
		@@ -1431,8 +1430,7 @@ public abstract class Transition implements Cloneable {
		int id = mTargetIds.get(i);
		View view = sceneRoot.findViewById(id);
		if (view != null) {
		TransitionValues values = new TransitionValues();
		values.view = view;
		TransitionValues values = new TransitionValues(view);
		if (start) {
		captureStartValues(values);
		} else {
		@@ -1449,8 +1447,7 @@ public abstract class Transition implements Cloneable {
		}
		for (int i = 0; i < mTargets.size(); ++i) {
		View view = mTargets.get(i);
		TransitionValues values = new TransitionValues();
		values.view = view;
		TransitionValues values = new TransitionValues(view);
		if (start) {
		captureStartValues(values);
		} else {
		@@ -1576,8 +1573,7 @@ public abstract class Transition implements Cloneable {
		}
		}
		if (view.getParent() instanceof ViewGroup) {
		TransitionValues values = new TransitionValues();
		values.view = view;
		TransitionValues values = new TransitionValues(view);
		if (start) {
		captureStartValues(values);
		} else {

core/java/android/transition/TransitionValues.java

+14 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		package android.transition;

		import android.annotation.NonNull;
		import android.util.ArrayMap;
		import android.view.View;
		import android.view.ViewGroup;
		@@ -43,19 +44,32 @@ import java.util.Map;
		*/
		public class TransitionValues {

		/** @deprecated Use {@link #TransitionValues(View)} instead */
		@Deprecated
		public TransitionValues() {
		}

		public TransitionValues(@NonNull View view) {
		this.view = view;
		}

		/**
		* The View with these values
		*/
		@SuppressWarnings("NullableProblems") // Can't make it final because of deprecated constructor.
		@NonNull
		public View view;

		/**
		* The set of values tracked by transitions for this scene
		*/
		@NonNull
		public final Map<String, Object> values = new ArrayMap<String, Object>();

		/**
		* The Transitions that targeted this view.
		*/
		@NonNull
		final ArrayList<Transition> targetedTransitions = new ArrayList<Transition>();

		@Override

core/java/android/transition/Visibility.java

+87 −58

Original line number	Diff line number	Diff line
		@@ -360,15 +360,49 @@ public abstract class Visibility extends Transition {
		return null;
		}

		View startView = (startValues != null) ? startValues.view : null;
		View endView = (endValues != null) ? endValues.view : null;
		if (startValues == null) {
		// startValues(and startView) will never be null for disappear transition.
		return null;
		}

		final View startView = startValues.view;
		final View endView = (endValues != null) ? endValues.view : null;
		View overlayView = null;
		View viewToKeep = null;
		boolean reusingOverlayView = false;

		View savedOverlayView = (View) startView.getTag(R.id.transition_overlay_view_tag);
		if (savedOverlayView != null) {
		// we've already created overlay for the start view.
		// it means that we are applying two visibility
		// transitions for the same view
		overlayView = savedOverlayView;
		reusingOverlayView = true;
		} else {
		boolean needOverlayForStartView = false;

		if (endView == null \|\| endView.getParent() == null) {
		if (endView != null) {
		// endView was removed from its parent - add it to the overlay
		overlayView = endView;
		} else if (startView != null) {
		} else {
		needOverlayForStartView = true;
		}
		} else {
		// visibility change
		if (endVisibility == View.INVISIBLE) {
		viewToKeep = endView;
		} else {
		// Becoming GONE
		if (startView == endView) {
		viewToKeep = endView;
		} else {
		needOverlayForStartView = true;
		}
		}
		}

		if (needOverlayForStartView) {
		// endView does not exist. Use startView only under certain
		// conditions, because placing a view in an overlay necessitates
		// it being removed from its current parent
		@@ -385,38 +419,27 @@ public abstract class Visibility extends Transition {
		if (!parentVisibilityInfo.visibilityChange) {
		overlayView = TransitionUtils.copyViewImage(sceneRoot, startView,
		startParent);
		} else if (startParent.getParent() == null) {
		} else {
		int id = startParent.getId();
		if (id != View.NO_ID && sceneRoot.findViewById(id) != null
		&& mCanRemoveViews) {
		if (startParent.getParent() == null && id != View.NO_ID
		&& sceneRoot.findViewById(id) != null && mCanRemoveViews) {
		// no parent, but its parent is unparented but the parent
		// hierarchy has been replaced by a new hierarchy with the same id
		// and it is safe to un-parent startView
		overlayView = startView;
		} else {
		// TODO: Handle this case as well
		}
		}
		}
		}
		} else {
		// visibility change
		if (endVisibility == View.INVISIBLE) {
		viewToKeep = endView;
		} else {
		// Becoming GONE
		if (startView == endView) {
		viewToKeep = endView;
		} else if (mCanRemoveViews) {
		overlayView = startView;
		} else {
		overlayView = TransitionUtils.copyViewImage(sceneRoot, startView,
		(View) startView.getParent());
		}
		}
		}
		final int finalVisibility = endVisibility;

		if (overlayView != null) {
		// TODO: Need to do this for general case of adding to overlay
		final ViewGroupOverlay overlay;
		if (!reusingOverlayView) {
		overlay = sceneRoot.getOverlay();
		int[] screenLoc = (int[]) startValues.values.get(PROPNAME_SCREEN_LOCATION);
		int screenX = screenLoc[0];
		int screenY = screenLoc[1];
		@@ -424,12 +447,16 @@ public abstract class Visibility extends Transition {
		sceneRoot.getLocationOnScreen(loc);
		overlayView.offsetLeftAndRight((screenX - loc[0]) - overlayView.getLeft());
		overlayView.offsetTopAndBottom((screenY - loc[1]) - overlayView.getTop());
		final ViewGroupOverlay overlay = sceneRoot.getOverlay();
		overlay.add(overlayView);
		} else {
		overlay = null;
		}
		Animator animator = onDisappear(sceneRoot, overlayView, startValues, endValues);
		if (!reusingOverlayView) {
		if (animator == null) {
		overlay.remove(overlayView);
		} else {
		startView.setTagInternal(R.id.transition_overlay_view_tag, overlayView);
		final View finalOverlayView = overlayView;
		addListener(new TransitionListenerAdapter() {

		@@ -449,11 +476,13 @@ public abstract class Visibility extends Transition {

		@Override
		public void onTransitionEnd(Transition transition) {
		startView.setTagInternal(R.id.transition_overlay_view_tag, null);
		overlay.remove(finalOverlayView);
		transition.removeListener(this);
		}
		});
		}
		}
		return animator;
		}

		@@ -463,7 +492,7 @@ public abstract class Visibility extends Transition {
		Animator animator = onDisappear(sceneRoot, viewToKeep, startValues, endValues);
		if (animator != null) {
		DisappearListener disappearListener = new DisappearListener(viewToKeep,
		finalVisibility, mSuppressLayout);
		endVisibility, mSuppressLayout);
		animator.addListener(disappearListener);
		animator.addPauseListener(disappearListener);
		addListener(disappearListener);

core/res/res/values/ids.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -175,4 +175,7 @@

		<!-- Accessibility action to notify a window there is an outside touch. -->
		<item type="id" name="accessibilityActionOutsideTouch" />

		<!-- A tag used to save the view added to a transition overlay -->
		<item type="id" name="transition_overlay_view_tag" />
		</resources>