Add Transitions useful for Activity transitions. (d6107a31) · Commits · e / os / android_frameworks_base

api/current.txt

+66 −0

Original line number	Diff line number	Diff line
		@@ -1020,6 +1020,7 @@ package android {
		field public static final int shrinkColumns = 16843082; // 0x101014a
		field public static final deprecated int singleLine = 16843101; // 0x101015d
		field public static final int singleUser = 16843711; // 0x10103bf
		field public static final int slideEdge = 16843835; // 0x101043b
		field public static final int smallIcon = 16843422; // 0x101029e
		field public static final int smallScreens = 16843396; // 0x1010284
		field public static final int smoothScrollbar = 16843313; // 0x1010231
		@@ -27407,6 +27408,16 @@ package android.transition {
		method public void setResizeClip(boolean);
		}

		public class CircularPropagation extends android.transition.VisibilityPropagation {
		ctor public CircularPropagation();
		method public long getStartDelay(android.view.ViewGroup, android.transition.Transition, android.transition.TransitionValues, android.transition.TransitionValues);
		method public void setPropagationSpeed(float);
		}

		public class Explode extends android.transition.Visibility {
		ctor public Explode();
		}

		public class Fade extends android.transition.Visibility {
		ctor public Fade();
		ctor public Fade(int);
		@@ -27414,6 +27425,12 @@ package android.transition {
		field public static final int OUT = 2; // 0x2
		}

		public class MoveImage extends android.transition.Transition {
		ctor public MoveImage();
		method public void captureEndValues(android.transition.TransitionValues);
		method public void captureStartValues(android.transition.TransitionValues);
		}

		public final class Scene {
		ctor public Scene(android.view.ViewGroup);
		ctor public Scene(android.view.ViewGroup, android.view.View);
		@@ -27426,6 +27443,27 @@ package android.transition {
		method public void setExitAction(java.lang.Runnable);
		}

		public class SidePropagation extends android.transition.VisibilityPropagation {
		ctor public SidePropagation();
		method public long getStartDelay(android.view.ViewGroup, android.transition.Transition, android.transition.TransitionValues, android.transition.TransitionValues);
		method public void setPropagationSpeed(float);
		method public void setSide(int);
		field public static final int BOTTOM = 3; // 0x3
		field public static final int LEFT = 0; // 0x0
		field public static final int RIGHT = 2; // 0x2
		field public static final int TOP = 1; // 0x1
		}

		public class Slide extends android.transition.Visibility {
		ctor public Slide();
		ctor public Slide(int);
		method public void setSlideEdge(int);
		field public static final int BOTTOM = 3; // 0x3
		field public static final int LEFT = 0; // 0x0
		field public static final int RIGHT = 2; // 0x2
		field public static final int TOP = 1; // 0x1
		}

		public abstract class Transition implements java.lang.Cloneable {
		ctor public Transition();
		method public android.transition.Transition addListener(android.transition.Transition.TransitionListener);
		@@ -27443,8 +27481,11 @@ package android.transition {
		method public android.transition.Transition excludeTarget(android.view.View, boolean);
		method public android.transition.Transition excludeTarget(java.lang.Class, boolean);
		method public long getDuration();
		method public android.graphics.Rect getEpicenter();
		method public android.transition.Transition.EpicenterCallback getEpicenterCallback();
		method public android.animation.TimeInterpolator getInterpolator();
		method public java.lang.String getName();
		method public android.transition.TransitionPropagation getPropagation();
		method public long getStartDelay();
		method public java.util.List<java.lang.Integer> getTargetIds();
		method public java.util.List<android.view.View> getTargets();
		@@ -27454,10 +27495,17 @@ package android.transition {
		method public android.transition.Transition removeTarget(int);
		method public android.transition.Transition removeTarget(android.view.View);
		method public android.transition.Transition setDuration(long);
		method public void setEpicenterCallback(android.transition.Transition.EpicenterCallback);
		method public android.transition.Transition setInterpolator(android.animation.TimeInterpolator);
		method public void setPropagation(android.transition.TransitionPropagation);
		method public android.transition.Transition setStartDelay(long);
		}

		public static abstract class Transition.EpicenterCallback {
		ctor public Transition.EpicenterCallback();
		method public abstract android.graphics.Rect getEpicenter(android.transition.Transition);
		}

		public static abstract interface Transition.TransitionListener {
		method public abstract void onTransitionCancel(android.transition.Transition);
		method public abstract void onTransitionEnd(android.transition.Transition);
		@@ -27484,6 +27532,13 @@ package android.transition {
		method public void transitionTo(android.transition.Scene);
		}

		public abstract class TransitionPropagation {
		ctor public TransitionPropagation();
		method public abstract void captureValues(android.transition.TransitionValues);
		method public abstract java.lang.String[] getPropagationProperties();
		method public abstract long getStartDelay(android.view.ViewGroup, android.transition.Transition, android.transition.TransitionValues, android.transition.TransitionValues);
		}

		public class TransitionSet extends android.transition.Transition {
		ctor public TransitionSet();
		method public android.transition.TransitionSet addTransition(android.transition.Transition);
		@@ -27508,7 +27563,18 @@ package android.transition {
		method public void captureStartValues(android.transition.TransitionValues);
		method public boolean isVisible(android.transition.TransitionValues);
		method public android.animation.Animator onAppear(android.view.ViewGroup, android.transition.TransitionValues, int, android.transition.TransitionValues, int);
		method public android.animation.Animator onAppear(android.view.ViewGroup, android.view.View, android.transition.TransitionValues, android.transition.TransitionValues);
		method public android.animation.Animator onDisappear(android.view.ViewGroup, android.transition.TransitionValues, int, android.transition.TransitionValues, int);
		method public android.animation.Animator onDisappear(android.view.ViewGroup, android.view.View, android.transition.TransitionValues, android.transition.TransitionValues);
		}

		public abstract class VisibilityPropagation extends android.transition.TransitionPropagation {
		ctor public VisibilityPropagation();
		method public void captureValues(android.transition.TransitionValues);
		method public java.lang.String[] getPropagationProperties();
		method public int getViewVisibility(android.transition.TransitionValues);
		method public int getViewX(android.transition.TransitionValues);
		method public int getViewY(android.transition.TransitionValues);
		}

		}

core/java/android/app/ActivityOptions.java

+12 −15

Original line number	Diff line number	Diff line
		@@ -722,8 +722,6 @@ public class ActivityOptions {
		private static class ExitTransitionListener extends ResultReceiver
		implements Transition.TransitionListener {
		private boolean mSharedElementNotified;
		private Transition mExitTransition;
		private Transition mSharedElementTransition;
		private IRemoteCallback mTransitionCompleteCallback;
		private boolean mExitComplete;
		private boolean mSharedElementComplete;
		@@ -733,10 +731,15 @@ public class ActivityOptions {
		SharedElementSource sharedElementSource) {
		super(null);
		mSharedElementSource = sharedElementSource;
		mExitTransition = exitTransition;
		mExitTransition.addListener(this);
		mSharedElementTransition = sharedElementTransition;
		mSharedElementTransition.addListener(this);
		exitTransition.addListener(this);
		sharedElementTransition.addListener(new Transition.TransitionListenerAdapter() {
		@Override
		public void onTransitionEnd(Transition transition) {
		mSharedElementComplete = true;
		notifySharedElement();
		transition.removeListener(this);
		}
		});
		}

		@Override
		@@ -769,15 +772,9 @@ public class ActivityOptions {

		@Override
		public void onTransitionEnd(Transition transition) {
		if (transition == mExitTransition) {
		mExitComplete = true;
		notifyExit();
		mExitTransition.removeListener(this);
		} else {
		mSharedElementComplete = true;
		notifySharedElement();
		mSharedElementTransition.removeListener(this);
		}
		transition.removeListener(this);
		}

		@Override

core/java/android/transition/CircularPropagation.java

0 → 100644

+103 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2014 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		package android.transition;

		import android.graphics.Rect;
		import android.util.FloatMath;
		import android.util.Log;
		import android.view.View;
		import android.view.ViewGroup;

		/**
		* A propagation that varies with the distance to the epicenter of the Transition
		* or center of the scene if no epicenter exists. When a View is visible in the
		* start of the transition, Views farther from the epicenter will transition
		* sooner than Views closer to the epicenter. When a View is not in the start
		* of the transition or is not visible at the start of the transition, it will
		* transition sooner when closer to the epicenter and later when farther from
		* the epicenter. This is the default TransitionPropagation used with
		* {@link android.transition.Explode}.
		*/
		public class CircularPropagation extends VisibilityPropagation {
		private static final String TAG = "CircularPropagation";

		private float mPropagationSpeed = 4.0f;

		/**
		* Sets the speed at which transition propagation happens, relative to the duration of the
		* Transition. A <code>propagationSpeed</code> of 1 means that a View centered farthest from
		* the epicenter and View centered at the epicenter will have a difference
		* in start delay of approximately the duration of the Transition. A speed of 2 means the
		* start delay difference will be approximately half of the duration of the transition. A
		* value of 0 is illegal, but negative values will invert the propagation.
		*
		* @param propagationSpeed The speed at which propagation occurs, relative to the duration
		* of the transition. A speed of 4 means it works 4 times as fast
		* as the duration of the transition. May not be 0.
		*/
		public void setPropagationSpeed(float propagationSpeed) {
		if (propagationSpeed == 0) {
		throw new IllegalArgumentException("propagationSpeed may not be 0");
		}
		mPropagationSpeed = propagationSpeed;
		}

		@Override
		public long getStartDelay(ViewGroup sceneRoot, Transition transition,
		TransitionValues startValues, TransitionValues endValues) {
		if (startValues == null && endValues == null) {
		return 0;
		}
		int directionMultiplier = 1;
		TransitionValues positionValues;
		if (endValues == null \|\| getViewVisibility(startValues) == View.VISIBLE) {
		positionValues = startValues;
		directionMultiplier = -1;
		} else {
		positionValues = endValues;
		}

		int viewCenterX = getViewX(positionValues);
		int viewCenterY = getViewY(positionValues);

		Rect epicenter = transition.getEpicenter();
		int epicenterX;
		int epicenterY;
		if (epicenter != null) {
		epicenterX = epicenter.centerX();
		epicenterY = epicenter.centerY();
		} else {
		int[] loc = new int[2];
		sceneRoot.getLocationOnScreen(loc);
		epicenterX = Math.round(loc[0] + (sceneRoot.getWidth() / 2)
		+ sceneRoot.getTranslationX());
		epicenterY = Math.round(loc[1] + (sceneRoot.getHeight() / 2)
		+ sceneRoot.getTranslationY());
		}
		float distance = distance(viewCenterX, viewCenterY, epicenterX, epicenterY);
		float maxDistance = distance(0, 0, sceneRoot.getWidth(), sceneRoot.getHeight());
		float distanceFraction = distance/maxDistance;

		return Math.round(transition.getDuration() * directionMultiplier / mPropagationSpeed
		* distanceFraction);
		}

		private static float distance(float x1, float y1, float x2, float y2) {
		float x = x2 - x1;
		float y = y2 - y1;
		return FloatMath.sqrt((x * x) + (y * y));
		}
		}

core/java/android/transition/Explode.java

0 → 100644

+228 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2014 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		package android.transition;

		import android.animation.Animator;
		import android.animation.AnimatorListenerAdapter;
		import android.animation.AnimatorSet;
		import android.animation.ObjectAnimator;
		import android.animation.TimeInterpolator;
		import android.graphics.Path;
		import android.graphics.Rect;
		import android.util.FloatMath;
		import android.util.Log;
		import android.view.View;
		import android.view.ViewGroup;
		import android.view.animation.AccelerateInterpolator;
		import android.view.animation.DecelerateInterpolator;

		/**
		* This transition tracks changes to the visibility of target views in the
		* start and end scenes and moves views in or out from the edges of the
		* scene. Visibility is determined by both the
		* {@link View#setVisibility(int)} state of the view as well as whether it
		* is parented in the current view hierarchy. Disappearing Views are
		* limited as described in {@link Visibility#onDisappear(android.view.ViewGroup,
		* TransitionValues, int, TransitionValues, int)}.
		* <p>Views move away from the focal View or the center of the Scene if
		* no epicenter was provided.</p>
		*/
		public class Explode extends Visibility {
		private static final TimeInterpolator sDecelerate = new DecelerateInterpolator();
		private static final TimeInterpolator sAccelerate = new AccelerateInterpolator();
		private static final String TAG = "Explode";

		private static final String PROPNAME_SCREEN_BOUNDS = "android:out:screenBounds";

		private int[] mTempLoc = new int[2];

		public Explode() {
		setPropagation(new CircularPropagation());
		}

		private void captureValues(TransitionValues transitionValues) {
		View view = transitionValues.view;
		view.getLocationOnScreen(mTempLoc);
		int left = mTempLoc[0] + Math.round(view.getTranslationX());
		int top = mTempLoc[1] + Math.round(view.getTranslationY());
		int right = left + view.getWidth();
		int bottom = top + view.getHeight();
		transitionValues.values.put(PROPNAME_SCREEN_BOUNDS, new Rect(left, top, right, bottom));
		}

		@Override
		public void captureStartValues(TransitionValues transitionValues) {
		super.captureStartValues(transitionValues);
		captureValues(transitionValues);
		}

		@Override
		public void captureEndValues(TransitionValues transitionValues) {
		super.captureEndValues(transitionValues);
		captureValues(transitionValues);
		}

		private Animator createAnimation(final View view, float startX, float startY, float endX,
		float endY, float terminalX, float terminalY, TimeInterpolator interpolator) {
		view.setTranslationX(startX);
		view.setTranslationY(startY);
		if (startY == endY && startX == endX) {
		return null;
		}
		Path path = new Path();
		path.moveTo(startX, startY);
		path.lineTo(endX, endY);
		ObjectAnimator pathAnimator = ObjectAnimator.ofFloat(view, View.TRANSLATION_X,
		View.TRANSLATION_Y, path);
		pathAnimator.setInterpolator(interpolator);
		OutAnimatorListener listener = new OutAnimatorListener(view, terminalX, terminalY,
		endX, endY);
		pathAnimator.addListener(listener);
		pathAnimator.addPauseListener(listener);

		return pathAnimator;
		}

		@Override
		public Animator onAppear(ViewGroup sceneRoot, View view,
		TransitionValues startValues, TransitionValues endValues) {
		if (endValues == null) {
		return null;
		}
		Rect bounds = (Rect) endValues.values.get(PROPNAME_SCREEN_BOUNDS);
		calculateOut(sceneRoot, bounds, mTempLoc);

		final float endX = view.getTranslationX();
		final float startX = endX + mTempLoc[0];
		final float endY = view.getTranslationY();
		final float startY = endY + mTempLoc[1];

		return createAnimation(view, startX, startY, endX, endY, endX, endY, sDecelerate);
		}

		@Override
		public Animator onDisappear(ViewGroup sceneRoot, View view,
		TransitionValues startValues, TransitionValues endValues) {
		Rect bounds = (Rect) startValues.values.get(PROPNAME_SCREEN_BOUNDS);
		calculateOut(sceneRoot, bounds, mTempLoc);

		final float startX = view.getTranslationX();
		final float endX = startX + mTempLoc[0];
		final float startY = view.getTranslationY();
		final float endY = startY + mTempLoc[1];

		return createAnimation(view, startX, startY, endX, endY, startX, startY,
		sAccelerate);
		}

		private void calculateOut(View sceneRoot, Rect bounds, int[] outVector) {
		sceneRoot.getLocationOnScreen(mTempLoc);
		int sceneRootX = mTempLoc[0];
		int sceneRootY = mTempLoc[1];
		int focalX;
		int focalY;

		Rect epicenter = getEpicenter();
		if (epicenter == null) {
		focalX = sceneRootX + (sceneRoot.getWidth() / 2)
		+ Math.round(sceneRoot.getTranslationX());
		focalY = sceneRootY + (sceneRoot.getHeight() / 2)
		+ Math.round(sceneRoot.getTranslationY());
		} else {
		focalX = epicenter.centerX();
		focalY = epicenter.centerY();
		}

		int centerX = bounds.centerX();
		int centerY = bounds.centerY();
		float xVector = centerX - focalX;
		float yVector = centerY - focalY;

		if (xVector == 0 && yVector == 0) {
		// Random direction when View is centered on focal View.
		xVector = (float)(Math.random() * 2) - 1;
		yVector = (float)(Math.random() * 2) - 1;
		}
		float vectorSize = calculateDistance(xVector, yVector);
		xVector /= vectorSize;
		yVector /= vectorSize;

		float maxDistance =
		calculateMaxDistance(sceneRoot, focalX - sceneRootX, focalY - sceneRootY);

		outVector[0] = Math.round(maxDistance * xVector);
		outVector[1] = Math.round(maxDistance * yVector);
		}

		private static float calculateMaxDistance(View sceneRoot, int focalX, int focalY) {
		int maxX = Math.max(focalX, sceneRoot.getWidth() - focalX);
		int maxY = Math.max(focalY, sceneRoot.getHeight() - focalY);
		return calculateDistance(maxX, maxY);
		}

		private static float calculateDistance(float x, float y) {
		return FloatMath.sqrt((x * x) + (y * y));
		}

		private static class OutAnimatorListener extends AnimatorListenerAdapter {
		private final View mView;
		private boolean mCanceled = false;
		private float mPausedX;
		private float mPausedY;
		private final float mTerminalX;
		private final float mTerminalY;
		private final float mEndX;
		private final float mEndY;

		public OutAnimatorListener(View view, float terminalX, float terminalY,
		float endX, float endY) {
		mView = view;
		mTerminalX = terminalX;
		mTerminalY = terminalY;
		mEndX = endX;
		mEndY = endY;
		}

		@Override
		public void onAnimationCancel(Animator animator) {
		mView.setTranslationX(mTerminalX);
		mView.setTranslationY(mTerminalY);
		mCanceled = true;
		}

		@Override
		public void onAnimationEnd(Animator animator) {
		if (!mCanceled) {
		mView.setTranslationX(mTerminalX);
		mView.setTranslationY(mTerminalY);
		}
		}

		@Override
		public void onAnimationPause(Animator animator) {
		mPausedX = mView.getTranslationX();
		mPausedY = mView.getTranslationY();
		mView.setTranslationY(mEndX);
		mView.setTranslationY(mEndY);
		}

		@Override
		public void onAnimationResume(Animator animator) {
		mView.setTranslationX(mPausedX);
		mView.setTranslationY(mPausedY);
		}
		}
		}

core/java/android/transition/Fade.java

+46 −212

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