| /* |
| * Copyright (C) 2021 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 com.android.internal.policy; |
| |
| import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_NO_ANIMATION; |
| import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_SUBTLE_ANIMATION; |
| import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_TO_SHADE; |
| import static android.view.WindowManager.TRANSIT_OLD_ACTIVITY_CLOSE; |
| import static android.view.WindowManager.TRANSIT_OLD_ACTIVITY_OPEN; |
| import static android.view.WindowManager.TRANSIT_OLD_TRANSLUCENT_ACTIVITY_CLOSE; |
| import static android.view.WindowManager.TRANSIT_OLD_TRANSLUCENT_ACTIVITY_OPEN; |
| import static android.view.WindowManager.TRANSIT_OLD_WALLPAPER_INTRA_CLOSE; |
| import static android.view.WindowManager.TRANSIT_OLD_WALLPAPER_INTRA_OPEN; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.ActivityManager; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.content.res.ResourceId; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.graphics.Rect; |
| import android.hardware.HardwareBuffer; |
| import android.os.SystemProperties; |
| import android.util.Slog; |
| import android.view.WindowManager.LayoutParams; |
| import android.view.WindowManager.TransitionOldType; |
| import android.view.animation.AlphaAnimation; |
| import android.view.animation.Animation; |
| import android.view.animation.AnimationSet; |
| import android.view.animation.AnimationUtils; |
| import android.view.animation.ClipRectAnimation; |
| import android.view.animation.Interpolator; |
| import android.view.animation.PathInterpolator; |
| import android.view.animation.ScaleAnimation; |
| import android.view.animation.TranslateAnimation; |
| |
| import com.android.internal.R; |
| |
| import java.util.List; |
| |
| /** @hide */ |
| public class TransitionAnimation { |
| // These are the possible states for the enter/exit activities during a thumbnail transition |
| public static final int THUMBNAIL_TRANSITION_ENTER_SCALE_UP = 0; |
| public static final int THUMBNAIL_TRANSITION_EXIT_SCALE_UP = 1; |
| public static final int THUMBNAIL_TRANSITION_ENTER_SCALE_DOWN = 2; |
| public static final int THUMBNAIL_TRANSITION_EXIT_SCALE_DOWN = 3; |
| |
| /** |
| * Maximum duration for the clip reveal animation. This is used when there is a lot of movement |
| * involved, to make it more understandable. |
| */ |
| private static final int MAX_CLIP_REVEAL_TRANSITION_DURATION = 420; |
| private static final int CLIP_REVEAL_TRANSLATION_Y_DP = 8; |
| private static final int THUMBNAIL_APP_TRANSITION_DURATION = 336; |
| |
| public static final int DEFAULT_APP_TRANSITION_DURATION = 336; |
| |
| /** Fraction of animation at which the recents thumbnail becomes completely transparent */ |
| private static final float RECENTS_THUMBNAIL_FADEOUT_FRACTION = 0.5f; |
| |
| private static final String DEFAULT_PACKAGE = "android"; |
| |
| private final Context mContext; |
| private final String mTag; |
| |
| private final LogDecelerateInterpolator mInterpolator = new LogDecelerateInterpolator(100, 0); |
| /** Interpolator to be used for animations that respond directly to a touch */ |
| private final Interpolator mTouchResponseInterpolator = |
| new PathInterpolator(0.3f, 0f, 0.1f, 1f); |
| private final Interpolator mClipHorizontalInterpolator = new PathInterpolator(0, 0, 0.4f, 1f); |
| private final Interpolator mDecelerateInterpolator; |
| private final Interpolator mLinearOutSlowInInterpolator; |
| private final Interpolator mThumbnailFadeOutInterpolator; |
| private final Rect mTmpFromClipRect = new Rect(); |
| private final Rect mTmpToClipRect = new Rect(); |
| private final Rect mTmpRect = new Rect(); |
| |
| private final int mClipRevealTranslationY; |
| private final int mConfigShortAnimTime; |
| private final int mDefaultWindowAnimationStyleResId; |
| |
| private final boolean mDebug; |
| private final boolean mGridLayoutRecentsEnabled; |
| private final boolean mLowRamRecentsEnabled; |
| |
| public TransitionAnimation(Context context, boolean debug, String tag) { |
| mContext = context; |
| mDebug = debug; |
| mTag = tag; |
| |
| mDecelerateInterpolator = AnimationUtils.loadInterpolator(context, |
| com.android.internal.R.interpolator.decelerate_cubic); |
| mLinearOutSlowInInterpolator = AnimationUtils.loadInterpolator(context, |
| com.android.internal.R.interpolator.linear_out_slow_in); |
| mThumbnailFadeOutInterpolator = input -> { |
| // Linear response for first fraction, then complete after that. |
| if (input < RECENTS_THUMBNAIL_FADEOUT_FRACTION) { |
| float t = input / RECENTS_THUMBNAIL_FADEOUT_FRACTION; |
| return mLinearOutSlowInInterpolator.getInterpolation(t); |
| } |
| return 1f; |
| }; |
| |
| mClipRevealTranslationY = (int) (CLIP_REVEAL_TRANSLATION_Y_DP |
| * mContext.getResources().getDisplayMetrics().density); |
| mConfigShortAnimTime = context.getResources().getInteger( |
| com.android.internal.R.integer.config_shortAnimTime); |
| |
| mGridLayoutRecentsEnabled = SystemProperties.getBoolean("ro.recents.grid", false); |
| mLowRamRecentsEnabled = ActivityManager.isLowRamDeviceStatic(); |
| |
| final TypedArray windowStyle = mContext.getTheme().obtainStyledAttributes( |
| com.android.internal.R.styleable.Window); |
| mDefaultWindowAnimationStyleResId = windowStyle.getResourceId( |
| com.android.internal.R.styleable.Window_windowAnimationStyle, 0); |
| windowStyle.recycle(); |
| } |
| |
| /** Loads keyguard animation by transition flags and check it is on wallpaper or not. */ |
| public Animation loadKeyguardExitAnimation(int transitionFlags, boolean onWallpaper) { |
| if ((transitionFlags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_NO_ANIMATION) != 0) { |
| return null; |
| } |
| final boolean toShade = |
| (transitionFlags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_TO_SHADE) != 0; |
| final boolean subtle = |
| (transitionFlags & TRANSIT_FLAG_KEYGUARD_GOING_AWAY_SUBTLE_ANIMATION) != 0; |
| return createHiddenByKeyguardExit(mContext, mInterpolator, onWallpaper, toShade, subtle); |
| } |
| |
| @Nullable |
| public Animation loadKeyguardUnoccludeAnimation() { |
| return loadDefaultAnimationRes(com.android.internal.R.anim.wallpaper_open_exit); |
| } |
| |
| @Nullable |
| public Animation loadVoiceActivityOpenAnimation(boolean enter) { |
| return loadDefaultAnimationRes(enter |
| ? com.android.internal.R.anim.voice_activity_open_enter |
| : com.android.internal.R.anim.voice_activity_open_exit); |
| } |
| |
| @Nullable |
| public Animation loadVoiceActivityExitAnimation(boolean enter) { |
| return loadDefaultAnimationRes(enter |
| ? com.android.internal.R.anim.voice_activity_close_enter |
| : com.android.internal.R.anim.voice_activity_close_exit); |
| } |
| |
| @Nullable |
| public Animation loadAppTransitionAnimation(String packageName, int resId) { |
| return loadAnimationRes(packageName, resId); |
| } |
| |
| @Nullable |
| public Animation loadCrossProfileAppEnterAnimation() { |
| return loadAnimationRes(DEFAULT_PACKAGE, |
| com.android.internal.R.anim.task_open_enter_cross_profile_apps); |
| } |
| |
| @Nullable |
| public Animation loadCrossProfileAppThumbnailEnterAnimation() { |
| return loadAnimationRes( |
| DEFAULT_PACKAGE, com.android.internal.R.anim.cross_profile_apps_thumbnail_enter); |
| } |
| |
| /** Load animation by resource Id from specific package. */ |
| @Nullable |
| public Animation loadAnimationRes(String packageName, int resId) { |
| if (ResourceId.isValid(resId)) { |
| AttributeCache.Entry ent = getCachedAnimations(packageName, resId); |
| if (ent != null) { |
| return loadAnimationSafely(ent.context, resId, mTag); |
| } |
| } |
| return null; |
| } |
| |
| /** Load animation by resource Id from android package. */ |
| @Nullable |
| public Animation loadDefaultAnimationRes(int resId) { |
| return loadAnimationRes(DEFAULT_PACKAGE, resId); |
| } |
| |
| /** Load animation by attribute Id from specific LayoutParams */ |
| @Nullable |
| public Animation loadAnimationAttr(LayoutParams lp, int animAttr, int transit) { |
| int resId = Resources.ID_NULL; |
| Context context = mContext; |
| if (animAttr >= 0) { |
| AttributeCache.Entry ent = getCachedAnimations(lp); |
| if (ent != null) { |
| context = ent.context; |
| resId = ent.array.getResourceId(animAttr, 0); |
| } |
| } |
| resId = updateToTranslucentAnimIfNeeded(resId, transit); |
| if (ResourceId.isValid(resId)) { |
| return loadAnimationSafely(context, resId, mTag); |
| } |
| return null; |
| } |
| |
| /** Load animation by attribute Id from android package. */ |
| @Nullable |
| public Animation loadDefaultAnimationAttr(int animAttr) { |
| int resId = Resources.ID_NULL; |
| Context context = mContext; |
| if (animAttr >= 0) { |
| AttributeCache.Entry ent = getCachedAnimations(DEFAULT_PACKAGE, |
| mDefaultWindowAnimationStyleResId); |
| if (ent != null) { |
| context = ent.context; |
| resId = ent.array.getResourceId(animAttr, 0); |
| } |
| } |
| if (ResourceId.isValid(resId)) { |
| return loadAnimationSafely(context, resId, mTag); |
| } |
| return null; |
| } |
| |
| @Nullable |
| private AttributeCache.Entry getCachedAnimations(LayoutParams lp) { |
| if (mDebug) { |
| Slog.v(mTag, "Loading animations: layout params pkg=" |
| + (lp != null ? lp.packageName : null) |
| + " resId=0x" + (lp != null ? Integer.toHexString(lp.windowAnimations) : null)); |
| } |
| if (lp != null && lp.windowAnimations != 0) { |
| // If this is a system resource, don't try to load it from the |
| // application resources. It is nice to avoid loading application |
| // resources if we can. |
| String packageName = lp.packageName != null ? lp.packageName : DEFAULT_PACKAGE; |
| int resId = getAnimationStyleResId(lp); |
| if ((resId & 0xFF000000) == 0x01000000) { |
| packageName = DEFAULT_PACKAGE; |
| } |
| if (mDebug) { |
| Slog.v(mTag, "Loading animations: picked package=" + packageName); |
| } |
| return AttributeCache.instance().get(packageName, resId, |
| com.android.internal.R.styleable.WindowAnimation); |
| } |
| return null; |
| } |
| |
| @Nullable |
| private AttributeCache.Entry getCachedAnimations(String packageName, int resId) { |
| if (mDebug) { |
| Slog.v(mTag, "Loading animations: package=" |
| + packageName + " resId=0x" + Integer.toHexString(resId)); |
| } |
| if (packageName != null) { |
| if ((resId & 0xFF000000) == 0x01000000) { |
| packageName = DEFAULT_PACKAGE; |
| } |
| if (mDebug) { |
| Slog.v(mTag, "Loading animations: picked package=" |
| + packageName); |
| } |
| return AttributeCache.instance().get(packageName, resId, |
| com.android.internal.R.styleable.WindowAnimation); |
| } |
| return null; |
| } |
| |
| /** Returns window animation style ID from {@link LayoutParams} or from system in some cases */ |
| public int getAnimationStyleResId(@NonNull LayoutParams lp) { |
| int resId = lp.windowAnimations; |
| if (lp.type == LayoutParams.TYPE_APPLICATION_STARTING) { |
| // Note that we don't want application to customize starting window animation. |
| // Since this window is specific for displaying while app starting, |
| // application should not change its animation directly. |
| // In this case, it will use system resource to get default animation. |
| resId = mDefaultWindowAnimationStyleResId; |
| } |
| return resId; |
| } |
| |
| public Animation createRelaunchAnimation(Rect containingFrame, Rect contentInsets, |
| Rect startRect) { |
| setupDefaultNextAppTransitionStartRect(startRect, mTmpFromClipRect); |
| final int left = mTmpFromClipRect.left; |
| final int top = mTmpFromClipRect.top; |
| mTmpFromClipRect.offset(-left, -top); |
| // TODO: Isn't that strange that we ignore exact position of the containingFrame? |
| mTmpToClipRect.set(0, 0, containingFrame.width(), containingFrame.height()); |
| AnimationSet set = new AnimationSet(true); |
| float fromWidth = mTmpFromClipRect.width(); |
| float toWidth = mTmpToClipRect.width(); |
| float fromHeight = mTmpFromClipRect.height(); |
| // While the window might span the whole display, the actual content will be cropped to the |
| // system decoration frame, for example when the window is docked. We need to take into |
| // account the visible height when constructing the animation. |
| float toHeight = mTmpToClipRect.height() - contentInsets.top - contentInsets.bottom; |
| int translateAdjustment = 0; |
| if (fromWidth <= toWidth && fromHeight <= toHeight) { |
| // The final window is larger in both dimensions than current window (e.g. we are |
| // maximizing), so we can simply unclip the new window and there will be no disappearing |
| // frame. |
| set.addAnimation(new ClipRectAnimation(mTmpFromClipRect, mTmpToClipRect)); |
| } else { |
| // The disappearing window has one larger dimension. We need to apply scaling, so the |
| // first frame of the entry animation matches the old window. |
| set.addAnimation(new ScaleAnimation(fromWidth / toWidth, 1, fromHeight / toHeight, 1)); |
| // We might not be going exactly full screen, but instead be aligned under the status |
| // bar using cropping. We still need to account for the cropped part, which will also |
| // be scaled. |
| translateAdjustment = (int) (contentInsets.top * fromHeight / toHeight); |
| } |
| |
| // We animate the translation from the old position of the removed window, to the new |
| // position of the added window. The latter might not be full screen, for example docked for |
| // docked windows. |
| TranslateAnimation translate = new TranslateAnimation(left - containingFrame.left, |
| 0, top - containingFrame.top - translateAdjustment, 0); |
| set.addAnimation(translate); |
| set.setDuration(DEFAULT_APP_TRANSITION_DURATION); |
| set.setZAdjustment(Animation.ZORDER_TOP); |
| return set; |
| } |
| |
| private void setupDefaultNextAppTransitionStartRect(Rect startRect, Rect rect) { |
| if (startRect == null) { |
| Slog.e(mTag, "Starting rect for app requested, but none available", new Throwable()); |
| rect.setEmpty(); |
| } else { |
| rect.set(startRect); |
| } |
| } |
| |
| public Animation createClipRevealAnimationLocked(int transit, boolean enter, Rect appFrame, |
| Rect displayFrame, Rect startRect) { |
| final Animation anim; |
| if (enter) { |
| final int appWidth = appFrame.width(); |
| final int appHeight = appFrame.height(); |
| |
| // mTmpRect will contain an area around the launcher icon that was pressed. We will |
| // clip reveal from that area in the final area of the app. |
| setupDefaultNextAppTransitionStartRect(startRect, mTmpRect); |
| |
| float t = 0f; |
| if (appHeight > 0) { |
| t = (float) mTmpRect.top / displayFrame.height(); |
| } |
| int translationY = mClipRevealTranslationY + (int) (displayFrame.height() / 7f * t); |
| int translationX = 0; |
| int translationYCorrection = translationY; |
| int centerX = mTmpRect.centerX(); |
| int centerY = mTmpRect.centerY(); |
| int halfWidth = mTmpRect.width() / 2; |
| int halfHeight = mTmpRect.height() / 2; |
| int clipStartX = centerX - halfWidth - appFrame.left; |
| int clipStartY = centerY - halfHeight - appFrame.top; |
| boolean cutOff = false; |
| |
| // If the starting rectangle is fully or partially outside of the target rectangle, we |
| // need to start the clipping at the edge and then achieve the rest with translation |
| // and extending the clip rect from that edge. |
| if (appFrame.top > centerY - halfHeight) { |
| translationY = (centerY - halfHeight) - appFrame.top; |
| translationYCorrection = 0; |
| clipStartY = 0; |
| cutOff = true; |
| } |
| if (appFrame.left > centerX - halfWidth) { |
| translationX = (centerX - halfWidth) - appFrame.left; |
| clipStartX = 0; |
| cutOff = true; |
| } |
| if (appFrame.right < centerX + halfWidth) { |
| translationX = (centerX + halfWidth) - appFrame.right; |
| clipStartX = appWidth - mTmpRect.width(); |
| cutOff = true; |
| } |
| final long duration = calculateClipRevealTransitionDuration(cutOff, translationX, |
| translationY, displayFrame); |
| |
| // Clip third of the from size of launch icon, expand to full width/height |
| Animation clipAnimLR = new ClipRectLRAnimation( |
| clipStartX, clipStartX + mTmpRect.width(), 0, appWidth); |
| clipAnimLR.setInterpolator(mClipHorizontalInterpolator); |
| clipAnimLR.setDuration((long) (duration / 2.5f)); |
| |
| TranslateAnimation translate = new TranslateAnimation(translationX, 0, translationY, 0); |
| translate.setInterpolator(cutOff ? mTouchResponseInterpolator |
| : mLinearOutSlowInInterpolator); |
| translate.setDuration(duration); |
| |
| Animation clipAnimTB = new ClipRectTBAnimation( |
| clipStartY, clipStartY + mTmpRect.height(), |
| 0, appHeight, |
| translationYCorrection, 0, |
| mLinearOutSlowInInterpolator); |
| clipAnimTB.setInterpolator(mTouchResponseInterpolator); |
| clipAnimTB.setDuration(duration); |
| |
| // Quick fade-in from icon to app window |
| final long alphaDuration = duration / 4; |
| AlphaAnimation alpha = new AlphaAnimation(0.5f, 1); |
| alpha.setDuration(alphaDuration); |
| alpha.setInterpolator(mLinearOutSlowInInterpolator); |
| |
| AnimationSet set = new AnimationSet(false); |
| set.addAnimation(clipAnimLR); |
| set.addAnimation(clipAnimTB); |
| set.addAnimation(translate); |
| set.addAnimation(alpha); |
| set.setZAdjustment(Animation.ZORDER_TOP); |
| set.initialize(appWidth, appHeight, appWidth, appHeight); |
| anim = set; |
| } else { |
| final long duration; |
| switch (transit) { |
| case TRANSIT_OLD_ACTIVITY_OPEN: |
| case TRANSIT_OLD_ACTIVITY_CLOSE: |
| duration = mConfigShortAnimTime; |
| break; |
| default: |
| duration = DEFAULT_APP_TRANSITION_DURATION; |
| break; |
| } |
| if (transit == TRANSIT_OLD_WALLPAPER_INTRA_OPEN |
| || transit == TRANSIT_OLD_WALLPAPER_INTRA_CLOSE) { |
| // If we are on top of the wallpaper, we need an animation that |
| // correctly handles the wallpaper staying static behind all of |
| // the animated elements. To do this, will just have the existing |
| // element fade out. |
| anim = new AlphaAnimation(1, 0); |
| anim.setDetachWallpaper(true); |
| } else { |
| // For normal animations, the exiting element just holds in place. |
| anim = new AlphaAnimation(1, 1); |
| } |
| anim.setInterpolator(mDecelerateInterpolator); |
| anim.setDuration(duration); |
| anim.setFillAfter(true); |
| } |
| return anim; |
| } |
| |
| public Animation createScaleUpAnimationLocked(int transit, boolean enter, |
| Rect containingFrame, Rect startRect) { |
| Animation a; |
| setupDefaultNextAppTransitionStartRect(startRect, mTmpRect); |
| final int appWidth = containingFrame.width(); |
| final int appHeight = containingFrame.height(); |
| if (enter) { |
| // Entering app zooms out from the center of the initial rect. |
| float scaleW = mTmpRect.width() / (float) appWidth; |
| float scaleH = mTmpRect.height() / (float) appHeight; |
| Animation scale = new ScaleAnimation(scaleW, 1, scaleH, 1, |
| computePivot(mTmpRect.left, scaleW), |
| computePivot(mTmpRect.top, scaleH)); |
| scale.setInterpolator(mDecelerateInterpolator); |
| |
| Animation alpha = new AlphaAnimation(0, 1); |
| alpha.setInterpolator(mThumbnailFadeOutInterpolator); |
| |
| AnimationSet set = new AnimationSet(false); |
| set.addAnimation(scale); |
| set.addAnimation(alpha); |
| set.setDetachWallpaper(true); |
| a = set; |
| } else if (transit == TRANSIT_OLD_WALLPAPER_INTRA_OPEN |
| || transit == TRANSIT_OLD_WALLPAPER_INTRA_CLOSE) { |
| // If we are on top of the wallpaper, we need an animation that |
| // correctly handles the wallpaper staying static behind all of |
| // the animated elements. To do this, will just have the existing |
| // element fade out. |
| a = new AlphaAnimation(1, 0); |
| a.setDetachWallpaper(true); |
| } else { |
| // For normal animations, the exiting element just holds in place. |
| a = new AlphaAnimation(1, 1); |
| } |
| |
| // Pick the desired duration. If this is an inter-activity transition, |
| // it is the standard duration for that. Otherwise we use the longer |
| // task transition duration. |
| final long duration; |
| switch (transit) { |
| case TRANSIT_OLD_ACTIVITY_OPEN: |
| case TRANSIT_OLD_ACTIVITY_CLOSE: |
| duration = mConfigShortAnimTime; |
| break; |
| default: |
| duration = DEFAULT_APP_TRANSITION_DURATION; |
| break; |
| } |
| a.setDuration(duration); |
| a.setFillAfter(true); |
| a.setInterpolator(mDecelerateInterpolator); |
| a.initialize(appWidth, appHeight, appWidth, appHeight); |
| return a; |
| } |
| |
| /** |
| * This animation is created when we are doing a thumbnail transition, for the activity that is |
| * leaving, and the activity that is entering. |
| */ |
| public Animation createThumbnailEnterExitAnimationLocked(int thumbTransitState, |
| Rect containingFrame, int transit, HardwareBuffer thumbnailHeader, |
| Rect startRect) { |
| final int appWidth = containingFrame.width(); |
| final int appHeight = containingFrame.height(); |
| Animation a; |
| setupDefaultNextAppTransitionStartRect(startRect, mTmpRect); |
| final int thumbWidthI = thumbnailHeader != null ? thumbnailHeader.getWidth() : appWidth; |
| final float thumbWidth = thumbWidthI > 0 ? thumbWidthI : 1; |
| final int thumbHeightI = thumbnailHeader != null ? thumbnailHeader.getHeight() : appHeight; |
| final float thumbHeight = thumbHeightI > 0 ? thumbHeightI : 1; |
| |
| switch (thumbTransitState) { |
| case THUMBNAIL_TRANSITION_ENTER_SCALE_UP: { |
| // Entering app scales up with the thumbnail |
| float scaleW = thumbWidth / appWidth; |
| float scaleH = thumbHeight / appHeight; |
| a = new ScaleAnimation(scaleW, 1, scaleH, 1, |
| computePivot(mTmpRect.left, scaleW), |
| computePivot(mTmpRect.top, scaleH)); |
| break; |
| } |
| case THUMBNAIL_TRANSITION_EXIT_SCALE_UP: { |
| // Exiting app while the thumbnail is scaling up should fade or stay in place |
| if (transit == TRANSIT_OLD_WALLPAPER_INTRA_OPEN) { |
| // Fade out while bringing up selected activity. This keeps the |
| // current activity from showing through a launching wallpaper |
| // activity. |
| a = new AlphaAnimation(1, 0); |
| } else { |
| // noop animation |
| a = new AlphaAnimation(1, 1); |
| } |
| break; |
| } |
| case THUMBNAIL_TRANSITION_ENTER_SCALE_DOWN: { |
| // Entering the other app, it should just be visible while we scale the thumbnail |
| // down above it |
| a = new AlphaAnimation(1, 1); |
| break; |
| } |
| case THUMBNAIL_TRANSITION_EXIT_SCALE_DOWN: { |
| // Exiting the current app, the app should scale down with the thumbnail |
| float scaleW = thumbWidth / appWidth; |
| float scaleH = thumbHeight / appHeight; |
| Animation scale = new ScaleAnimation(1, scaleW, 1, scaleH, |
| computePivot(mTmpRect.left, scaleW), |
| computePivot(mTmpRect.top, scaleH)); |
| |
| Animation alpha = new AlphaAnimation(1, 0); |
| |
| AnimationSet set = new AnimationSet(true); |
| set.addAnimation(scale); |
| set.addAnimation(alpha); |
| set.setZAdjustment(Animation.ZORDER_TOP); |
| a = set; |
| break; |
| } |
| default: |
| throw new RuntimeException("Invalid thumbnail transition state"); |
| } |
| |
| return prepareThumbnailAnimation(a, appWidth, appHeight, transit); |
| } |
| |
| /** |
| * This alternate animation is created when we are doing a thumbnail transition, for the |
| * activity that is leaving, and the activity that is entering. |
| */ |
| public Animation createAspectScaledThumbnailEnterExitAnimationLocked(int thumbTransitState, |
| int orientation, int transit, Rect containingFrame, Rect contentInsets, |
| @Nullable Rect surfaceInsets, @Nullable Rect stableInsets, boolean freeform, |
| Rect startRect, Rect defaultStartRect) { |
| Animation a; |
| final int appWidth = containingFrame.width(); |
| final int appHeight = containingFrame.height(); |
| setupDefaultNextAppTransitionStartRect(defaultStartRect, mTmpRect); |
| final int thumbWidthI = mTmpRect.width(); |
| final float thumbWidth = thumbWidthI > 0 ? thumbWidthI : 1; |
| final int thumbHeightI = mTmpRect.height(); |
| final float thumbHeight = thumbHeightI > 0 ? thumbHeightI : 1; |
| final int thumbStartX = mTmpRect.left - containingFrame.left - contentInsets.left; |
| final int thumbStartY = mTmpRect.top - containingFrame.top; |
| |
| switch (thumbTransitState) { |
| case THUMBNAIL_TRANSITION_ENTER_SCALE_UP: |
| case THUMBNAIL_TRANSITION_EXIT_SCALE_DOWN: { |
| final boolean scaleUp = thumbTransitState == THUMBNAIL_TRANSITION_ENTER_SCALE_UP; |
| if (freeform && scaleUp) { |
| a = createAspectScaledThumbnailEnterFreeformAnimationLocked( |
| containingFrame, surfaceInsets, startRect, defaultStartRect); |
| } else if (freeform) { |
| a = createAspectScaledThumbnailExitFreeformAnimationLocked( |
| containingFrame, surfaceInsets, startRect, defaultStartRect); |
| } else { |
| AnimationSet set = new AnimationSet(true); |
| |
| // In portrait, we scale to fit the width |
| mTmpFromClipRect.set(containingFrame); |
| mTmpToClipRect.set(containingFrame); |
| |
| // Containing frame is in screen space, but we need the clip rect in the |
| // app space. |
| mTmpFromClipRect.offsetTo(0, 0); |
| mTmpToClipRect.offsetTo(0, 0); |
| |
| // Exclude insets region from the source clip. |
| mTmpFromClipRect.inset(contentInsets); |
| |
| if (shouldScaleDownThumbnailTransition(orientation)) { |
| // We scale the width and clip to the top/left square |
| float scale = |
| thumbWidth / (appWidth - contentInsets.left - contentInsets.right); |
| if (!mGridLayoutRecentsEnabled) { |
| int unscaledThumbHeight = (int) (thumbHeight / scale); |
| mTmpFromClipRect.bottom = mTmpFromClipRect.top + unscaledThumbHeight; |
| } |
| |
| Animation scaleAnim = new ScaleAnimation( |
| scaleUp ? scale : 1, scaleUp ? 1 : scale, |
| scaleUp ? scale : 1, scaleUp ? 1 : scale, |
| containingFrame.width() / 2f, |
| containingFrame.height() / 2f + contentInsets.top); |
| final float targetX = (mTmpRect.left - containingFrame.left); |
| final float x = containingFrame.width() / 2f |
| - containingFrame.width() / 2f * scale; |
| final float targetY = (mTmpRect.top - containingFrame.top); |
| float y = containingFrame.height() / 2f |
| - containingFrame.height() / 2f * scale; |
| |
| // During transition may require clipping offset from any top stable insets |
| // such as the statusbar height when statusbar is hidden |
| if (mLowRamRecentsEnabled && contentInsets.top == 0 && scaleUp) { |
| mTmpFromClipRect.top += stableInsets.top; |
| y += stableInsets.top; |
| } |
| final float startX = targetX - x; |
| final float startY = targetY - y; |
| Animation clipAnim = scaleUp |
| ? new ClipRectAnimation(mTmpFromClipRect, mTmpToClipRect) |
| : new ClipRectAnimation(mTmpToClipRect, mTmpFromClipRect); |
| Animation translateAnim = scaleUp |
| ? createCurvedMotion(startX, 0, startY - contentInsets.top, 0) |
| : createCurvedMotion(0, startX, 0, startY - contentInsets.top); |
| |
| set.addAnimation(clipAnim); |
| set.addAnimation(scaleAnim); |
| set.addAnimation(translateAnim); |
| |
| } else { |
| // In landscape, we don't scale at all and only crop |
| mTmpFromClipRect.bottom = mTmpFromClipRect.top + thumbHeightI; |
| mTmpFromClipRect.right = mTmpFromClipRect.left + thumbWidthI; |
| |
| Animation clipAnim = scaleUp |
| ? new ClipRectAnimation(mTmpFromClipRect, mTmpToClipRect) |
| : new ClipRectAnimation(mTmpToClipRect, mTmpFromClipRect); |
| Animation translateAnim = scaleUp |
| ? createCurvedMotion(thumbStartX, 0, |
| thumbStartY - contentInsets.top, 0) |
| : createCurvedMotion(0, thumbStartX, 0, |
| thumbStartY - contentInsets.top); |
| |
| set.addAnimation(clipAnim); |
| set.addAnimation(translateAnim); |
| } |
| a = set; |
| a.setZAdjustment(Animation.ZORDER_TOP); |
| } |
| break; |
| } |
| case THUMBNAIL_TRANSITION_EXIT_SCALE_UP: { |
| // Previous app window during the scale up |
| if (transit == TRANSIT_OLD_WALLPAPER_INTRA_OPEN) { |
| // Fade out the source activity if we are animating to a wallpaper |
| // activity. |
| a = new AlphaAnimation(1, 0); |
| } else { |
| a = new AlphaAnimation(1, 1); |
| } |
| break; |
| } |
| case THUMBNAIL_TRANSITION_ENTER_SCALE_DOWN: { |
| // Target app window during the scale down |
| if (transit == TRANSIT_OLD_WALLPAPER_INTRA_OPEN) { |
| // Fade in the destination activity if we are animating from a wallpaper |
| // activity. |
| a = new AlphaAnimation(0, 1); |
| } else { |
| a = new AlphaAnimation(1, 1); |
| } |
| break; |
| } |
| default: |
| throw new RuntimeException("Invalid thumbnail transition state"); |
| } |
| |
| return prepareThumbnailAnimationWithDuration(a, appWidth, appHeight, |
| THUMBNAIL_APP_TRANSITION_DURATION, mTouchResponseInterpolator); |
| } |
| |
| /** |
| * Prepares the specified animation with a standard duration, interpolator, etc. |
| */ |
| private Animation prepareThumbnailAnimation(Animation a, int appWidth, int appHeight, |
| int transit) { |
| // Pick the desired duration. If this is an inter-activity transition, |
| // it is the standard duration for that. Otherwise we use the longer |
| // task transition duration. |
| final int duration; |
| switch (transit) { |
| case TRANSIT_OLD_ACTIVITY_OPEN: |
| case TRANSIT_OLD_ACTIVITY_CLOSE: |
| duration = mConfigShortAnimTime; |
| break; |
| default: |
| duration = DEFAULT_APP_TRANSITION_DURATION; |
| break; |
| } |
| return prepareThumbnailAnimationWithDuration(a, appWidth, appHeight, duration, |
| mDecelerateInterpolator); |
| } |
| |
| |
| private Animation createAspectScaledThumbnailEnterFreeformAnimationLocked(Rect frame, |
| @Nullable Rect surfaceInsets, @Nullable Rect startRect, |
| @Nullable Rect defaultStartRect) { |
| getNextAppTransitionStartRect(startRect, defaultStartRect, mTmpRect); |
| return createAspectScaledThumbnailFreeformAnimationLocked(mTmpRect, frame, surfaceInsets, |
| true); |
| } |
| |
| private Animation createAspectScaledThumbnailExitFreeformAnimationLocked(Rect frame, |
| @Nullable Rect surfaceInsets, @Nullable Rect startRect, |
| @Nullable Rect defaultStartRect) { |
| getNextAppTransitionStartRect(startRect, defaultStartRect, mTmpRect); |
| return createAspectScaledThumbnailFreeformAnimationLocked(frame, mTmpRect, surfaceInsets, |
| false); |
| } |
| |
| private void getNextAppTransitionStartRect(Rect startRect, Rect defaultStartRect, Rect rect) { |
| if (startRect == null && defaultStartRect == null) { |
| Slog.e(mTag, "Starting rect for container not available", new Throwable()); |
| rect.setEmpty(); |
| } else { |
| rect.set(startRect != null ? startRect : defaultStartRect); |
| } |
| } |
| |
| private AnimationSet createAspectScaledThumbnailFreeformAnimationLocked(Rect sourceFrame, |
| Rect destFrame, @Nullable Rect surfaceInsets, boolean enter) { |
| final float sourceWidth = sourceFrame.width(); |
| final float sourceHeight = sourceFrame.height(); |
| final float destWidth = destFrame.width(); |
| final float destHeight = destFrame.height(); |
| final float scaleH = enter ? sourceWidth / destWidth : destWidth / sourceWidth; |
| final float scaleV = enter ? sourceHeight / destHeight : destHeight / sourceHeight; |
| AnimationSet set = new AnimationSet(true); |
| final int surfaceInsetsH = surfaceInsets == null |
| ? 0 : surfaceInsets.left + surfaceInsets.right; |
| final int surfaceInsetsV = surfaceInsets == null |
| ? 0 : surfaceInsets.top + surfaceInsets.bottom; |
| // We want the scaling to happen from the center of the surface. In order to achieve that, |
| // we need to account for surface insets that will be used to enlarge the surface. |
| final float scaleHCenter = ((enter ? destWidth : sourceWidth) + surfaceInsetsH) / 2; |
| final float scaleVCenter = ((enter ? destHeight : sourceHeight) + surfaceInsetsV) / 2; |
| final ScaleAnimation scale = enter |
| ? new ScaleAnimation(scaleH, 1, scaleV, 1, scaleHCenter, scaleVCenter) |
| : new ScaleAnimation(1, scaleH, 1, scaleV, scaleHCenter, scaleVCenter); |
| final int sourceHCenter = sourceFrame.left + sourceFrame.width() / 2; |
| final int sourceVCenter = sourceFrame.top + sourceFrame.height() / 2; |
| final int destHCenter = destFrame.left + destFrame.width() / 2; |
| final int destVCenter = destFrame.top + destFrame.height() / 2; |
| final int fromX = enter ? sourceHCenter - destHCenter : destHCenter - sourceHCenter; |
| final int fromY = enter ? sourceVCenter - destVCenter : destVCenter - sourceVCenter; |
| final TranslateAnimation translation = enter ? new TranslateAnimation(fromX, 0, fromY, 0) |
| : new TranslateAnimation(0, fromX, 0, fromY); |
| set.addAnimation(scale); |
| set.addAnimation(translation); |
| return set; |
| } |
| |
| /** |
| * @return whether the transition should show the thumbnail being scaled down. |
| */ |
| private boolean shouldScaleDownThumbnailTransition(int orientation) { |
| return mGridLayoutRecentsEnabled |
| || orientation == Configuration.ORIENTATION_PORTRAIT; |
| } |
| |
| private static int updateToTranslucentAnimIfNeeded(int anim, @TransitionOldType int transit) { |
| if (transit == TRANSIT_OLD_TRANSLUCENT_ACTIVITY_OPEN |
| && anim == R.anim.activity_open_enter) { |
| return R.anim.activity_translucent_open_enter; |
| } |
| if (transit == TRANSIT_OLD_TRANSLUCENT_ACTIVITY_CLOSE |
| && anim == R.anim.activity_close_exit) { |
| return R.anim.activity_translucent_close_exit; |
| } |
| return anim; |
| } |
| |
| /** |
| * Calculates the duration for the clip reveal animation. If the clip is "cut off", meaning that |
| * the start rect is outside of the target rect, and there is a lot of movement going on. |
| * |
| * @param cutOff whether the start rect was not fully contained by the end rect |
| * @param translationX the total translation the surface moves in x direction |
| * @param translationY the total translation the surfaces moves in y direction |
| * @param displayFrame our display frame |
| * |
| * @return the duration of the clip reveal animation, in milliseconds |
| */ |
| private static long calculateClipRevealTransitionDuration(boolean cutOff, float translationX, |
| float translationY, Rect displayFrame) { |
| if (!cutOff) { |
| return DEFAULT_APP_TRANSITION_DURATION; |
| } |
| final float fraction = Math.max(Math.abs(translationX) / displayFrame.width(), |
| Math.abs(translationY) / displayFrame.height()); |
| return (long) (DEFAULT_APP_TRANSITION_DURATION + fraction |
| * (MAX_CLIP_REVEAL_TRANSITION_DURATION - DEFAULT_APP_TRANSITION_DURATION)); |
| } |
| |
| /** |
| * Prepares the specified animation with a standard duration, interpolator, etc. |
| */ |
| private static Animation prepareThumbnailAnimationWithDuration(Animation a, int appWidth, |
| int appHeight, long duration, Interpolator interpolator) { |
| if (duration > 0) { |
| a.setDuration(duration); |
| } |
| a.setFillAfter(true); |
| if (interpolator != null) { |
| a.setInterpolator(interpolator); |
| } |
| a.initialize(appWidth, appHeight, appWidth, appHeight); |
| return a; |
| } |
| |
| private static Animation createCurvedMotion(float fromX, float toX, float fromY, float toY) { |
| return new TranslateAnimation(fromX, toX, fromY, toY); |
| } |
| |
| /** |
| * Compute the pivot point for an animation that is scaling from a small |
| * rect on screen to a larger rect. The pivot point varies depending on |
| * the distance between the inner and outer edges on both sides. This |
| * function computes the pivot point for one dimension. |
| * @param startPos Offset from left/top edge of outer rectangle to |
| * left/top edge of inner rectangle. |
| * @param finalScale The scaling factor between the size of the outer |
| * and inner rectangles. |
| */ |
| public static float computePivot(int startPos, float finalScale) { |
| |
| /* |
| Theorem of intercepting lines: |
| |
| + + +-----------------------------------------------+ |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| x | y | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | + | +--------------------+ | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | +--------------------+ | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | +-----------------------------------------------+ |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| + ++ |
| p ++ |
| |
| scale = (x - y) / x |
| <=> x = -y / (scale - 1) |
| */ |
| final float denom = finalScale - 1; |
| if (Math.abs(denom) < .0001f) { |
| return startPos; |
| } |
| return -startPos / denom; |
| } |
| |
| @Nullable |
| public static Animation loadAnimationSafely(Context context, int resId, String tag) { |
| try { |
| return AnimationUtils.loadAnimation(context, resId); |
| } catch (Resources.NotFoundException e) { |
| Slog.w(tag, "Unable to load animation resource", e); |
| return null; |
| } |
| } |
| |
| public static Animation createHiddenByKeyguardExit(Context context, |
| LogDecelerateInterpolator interpolator, boolean onWallpaper, |
| boolean goingToNotificationShade, boolean subtleAnimation) { |
| if (goingToNotificationShade) { |
| return AnimationUtils.loadAnimation(context, R.anim.lock_screen_behind_enter_fade_in); |
| } |
| |
| final int resource; |
| if (subtleAnimation) { |
| resource = R.anim.lock_screen_behind_enter_subtle; |
| } else if (onWallpaper) { |
| resource = R.anim.lock_screen_behind_enter_wallpaper; |
| } else { |
| resource = R.anim.lock_screen_behind_enter; |
| } |
| |
| AnimationSet set = (AnimationSet) AnimationUtils.loadAnimation(context, resource); |
| |
| // TODO: Use XML interpolators when we have log interpolators available in XML. |
| final List<Animation> animations = set.getAnimations(); |
| for (int i = animations.size() - 1; i >= 0; --i) { |
| animations.get(i).setInterpolator(interpolator); |
| } |
| |
| return set; |
| } |
| } |
