/* * Copyright (C) 2011 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.server.wm; import android.app.ActivityOptions; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Point; import android.os.Debug; import android.os.Handler; import android.os.IRemoteCallback; import android.util.Slog; import android.view.WindowManager; import android.view.WindowManagerPolicy; import android.view.animation.AlphaAnimation; import android.view.animation.Animation; import android.view.animation.AnimationSet; import android.view.animation.AnimationUtils; import android.view.animation.DecelerateInterpolator; import android.view.animation.Interpolator; import android.view.animation.ScaleAnimation; import com.android.internal.util.DumpUtils.Dump; import com.android.server.AttributeCache; import com.android.server.wm.WindowManagerService.H; import java.io.PrintWriter; import static android.view.WindowManagerPolicy.TRANSIT_NONE; import static android.view.WindowManagerPolicy.TRANSIT_UNSET; // State management of app transitions. When we are preparing for a // transition, mNextAppTransition will be the kind of transition to // perform or TRANSIT_NONE if we are not waiting. If we are waiting, // mOpeningApps and mClosingApps are the lists of tokens that will be // made visible or hidden at the next transition. public class AppTransition implements Dump { private static final String TAG = "AppTransition"; private static final float THUMBNAIL_ANIMATION_DECELERATE_FACTOR = 1.5f; private static final boolean DEBUG_APP_TRANSITIONS = WindowManagerService.DEBUG_APP_TRANSITIONS; private static final boolean DEBUG_ANIM = WindowManagerService.DEBUG_APP_TRANSITIONS; final Context mContext; final Handler mH; int mNextAppTransition = TRANSIT_UNSET; int mNextAppTransitionType = ActivityOptions.ANIM_NONE; String mNextAppTransitionPackage; Bitmap mNextAppTransitionThumbnail; // Used for thumbnail transitions. True if we're scaling up, false if scaling down boolean mNextAppTransitionScaleUp; IRemoteCallback mNextAppTransitionCallback; int mNextAppTransitionEnter; int mNextAppTransitionExit; int mNextAppTransitionStartX; int mNextAppTransitionStartY; int mNextAppTransitionStartWidth; int mNextAppTransitionStartHeight; boolean mAppTransitionReady = false; boolean mAppTransitionRunning = false; boolean mAppTransitionTimeout = false; final int mConfigShortAnimTime; final Interpolator mInterpolator; AppTransition(Context context, Handler h) { mContext = context; mH = h; mConfigShortAnimTime = context.getResources().getInteger( com.android.internal.R.integer.config_shortAnimTime); mInterpolator = AnimationUtils.loadInterpolator(context, com.android.internal.R.interpolator.decelerate_quad); } boolean isTransitionSet() { return mNextAppTransition != TRANSIT_UNSET; } boolean isTransitionNone() { return mNextAppTransition == TRANSIT_NONE; } boolean isTransitionEqual(int transit) { return mNextAppTransition == transit; } int getAppTransition() { return mNextAppTransition; } void setAppTransition(int transit) { mNextAppTransition = transit; } boolean isReady() { return mAppTransitionReady; } void setReady() { mAppTransitionReady = true; } boolean isRunning() { return mAppTransitionRunning; } void setRunning(boolean running) { mAppTransitionRunning = running; } boolean isTimeout() { return mAppTransitionTimeout; } void setTimeout(boolean timeout) { mAppTransitionTimeout = timeout; } Bitmap getNextAppTransitionThumbnail() { return mNextAppTransitionThumbnail; } void getStartingPoint(Point outPoint) { outPoint.x = mNextAppTransitionStartX; outPoint.y = mNextAppTransitionStartY; } int getType() { return mNextAppTransitionType; } void prepare() { mAppTransitionReady = false; mAppTransitionTimeout = false; } void goodToGo() { mNextAppTransition = WindowManagerPolicy.TRANSIT_UNSET; mAppTransitionReady = false; mAppTransitionRunning = true; mAppTransitionTimeout = false; } void clear() { mNextAppTransitionType = ActivityOptions.ANIM_NONE; mNextAppTransitionPackage = null; mNextAppTransitionThumbnail = null; } private AttributeCache.Entry getCachedAnimations(WindowManager.LayoutParams lp) { if (DEBUG_ANIM) Slog.v(TAG, "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 : "android"; int resId = lp.windowAnimations; if ((resId&0xFF000000) == 0x01000000) { packageName = "android"; } if (DEBUG_ANIM) Slog.v(TAG, "Loading animations: picked package=" + packageName); return AttributeCache.instance().get(packageName, resId, com.android.internal.R.styleable.WindowAnimation); } return null; } private AttributeCache.Entry getCachedAnimations(String packageName, int resId) { if (DEBUG_ANIM) Slog.v(TAG, "Loading animations: package=" + packageName + " resId=0x" + Integer.toHexString(resId)); if (packageName != null) { if ((resId&0xFF000000) == 0x01000000) { packageName = "android"; } if (DEBUG_ANIM) Slog.v(TAG, "Loading animations: picked package=" + packageName); return AttributeCache.instance().get(packageName, resId, com.android.internal.R.styleable.WindowAnimation); } return null; } Animation loadAnimation(WindowManager.LayoutParams lp, int animAttr) { int anim = 0; Context context = mContext; if (animAttr >= 0) { AttributeCache.Entry ent = getCachedAnimations(lp); if (ent != null) { context = ent.context; anim = ent.array.getResourceId(animAttr, 0); } } if (anim != 0) { return AnimationUtils.loadAnimation(context, anim); } return null; } private Animation loadAnimation(String packageName, int resId) { int anim = 0; Context context = mContext; if (resId >= 0) { AttributeCache.Entry ent = getCachedAnimations(packageName, resId); if (ent != null) { context = ent.context; anim = resId; } } if (anim != 0) { return AnimationUtils.loadAnimation(context, anim); } return null; } private Animation createExitAnimationLocked(int transit, int duration) { if (transit == WindowManagerPolicy.TRANSIT_WALLPAPER_INTRA_OPEN || transit == WindowManagerPolicy.TRANSIT_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. Animation a = new AlphaAnimation(1, 0); a.setDetachWallpaper(true); a.setDuration(duration); return a; } // For normal animations, the exiting element just holds in place. Animation a = new AlphaAnimation(1, 1); a.setDuration(duration); return a; } /** * 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. */ private static float computePivot(int startPos, float finalScale) { final float denom = finalScale-1; if (Math.abs(denom) < .0001f) { return startPos; } return -startPos / denom; } private Animation createScaleUpAnimationLocked(int transit, boolean enter, int appWidth, int appHeight) { Animation a = null; // 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. int duration; switch (transit) { case WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN: case WindowManagerPolicy.TRANSIT_ACTIVITY_CLOSE: duration = mContext.getResources().getInteger( com.android.internal.R.integer.config_shortAnimTime); break; default: duration = 300; break; } if (enter) { // Entering app zooms out from the center of the initial rect. float scaleW = mNextAppTransitionStartWidth / (float) appWidth; float scaleH = mNextAppTransitionStartHeight / (float) appHeight; Animation scale = new ScaleAnimation(scaleW, 1, scaleH, 1, computePivot(mNextAppTransitionStartX, scaleW), computePivot(mNextAppTransitionStartY, scaleH)); scale.setDuration(duration); AnimationSet set = new AnimationSet(true); Animation alpha = new AlphaAnimation(0, 1); scale.setDuration(duration); set.addAnimation(scale); alpha.setDuration(duration); set.addAnimation(alpha); set.setDetachWallpaper(true); a = set; } else { a = createExitAnimationLocked(transit, duration); } a.setFillAfter(true); final Interpolator interpolator = AnimationUtils.loadInterpolator(mContext, com.android.internal.R.interpolator.decelerate_cubic); a.setInterpolator(interpolator); a.initialize(appWidth, appHeight, appWidth, appHeight); return a; } Animation createThumbnailAnimationLocked(int transit, boolean enter, boolean thumb, int appWidth, int appHeight) { Animation a; final int thumbWidthI = mNextAppTransitionThumbnail.getWidth(); final float thumbWidth = thumbWidthI > 0 ? thumbWidthI : 1; final int thumbHeightI = mNextAppTransitionThumbnail.getHeight(); final float thumbHeight = thumbHeightI > 0 ? thumbHeightI : 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. int duration; switch (transit) { case WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN: case WindowManagerPolicy.TRANSIT_ACTIVITY_CLOSE: duration = mConfigShortAnimTime; break; default: duration = 250; break; } if (thumb) { // Animation for zooming thumbnail from its initial size to // filling the screen. if (mNextAppTransitionScaleUp) { float scaleW = appWidth / thumbWidth; float scaleH = appHeight / thumbHeight; Animation scale = new ScaleAnimation(1, scaleW, 1, scaleH, computePivot(mNextAppTransitionStartX, 1 / scaleW), computePivot(mNextAppTransitionStartY, 1 / scaleH)); AnimationSet set = new AnimationSet(true); Animation alpha = new AlphaAnimation(1, 0); scale.setDuration(duration); scale.setInterpolator( new DecelerateInterpolator(THUMBNAIL_ANIMATION_DECELERATE_FACTOR)); set.addAnimation(scale); alpha.setDuration(duration); set.addAnimation(alpha); set.setFillBefore(true); a = set; } else { float scaleW = appWidth / thumbWidth; float scaleH = appHeight / thumbHeight; Animation scale = new ScaleAnimation(scaleW, 1, scaleH, 1, computePivot(mNextAppTransitionStartX, 1 / scaleW), computePivot(mNextAppTransitionStartY, 1 / scaleH)); AnimationSet set = new AnimationSet(true); Animation alpha = new AlphaAnimation(1, 1); scale.setDuration(duration); scale.setInterpolator( new DecelerateInterpolator(THUMBNAIL_ANIMATION_DECELERATE_FACTOR)); set.addAnimation(scale); alpha.setDuration(duration); set.addAnimation(alpha); set.setFillBefore(true); a = set; } } else if (enter) { // Entering app zooms out from the center of the thumbnail. if (mNextAppTransitionScaleUp) { float scaleW = thumbWidth / appWidth; float scaleH = thumbHeight / appHeight; Animation scale = new ScaleAnimation(scaleW, 1, scaleH, 1, computePivot(mNextAppTransitionStartX, scaleW), computePivot(mNextAppTransitionStartY, scaleH)); scale.setDuration(duration); scale.setInterpolator( new DecelerateInterpolator(THUMBNAIL_ANIMATION_DECELERATE_FACTOR)); scale.setFillBefore(true); a = scale; } else { // noop animation a = new AlphaAnimation(1, 1); a.setDuration(duration); } } else { // Exiting app if (mNextAppTransitionScaleUp) { if (transit == WindowManagerPolicy.TRANSIT_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); } a.setDuration(duration); } else { float scaleW = thumbWidth / appWidth; float scaleH = thumbHeight / appHeight; Animation scale = new ScaleAnimation(1, scaleW, 1, scaleH, computePivot(mNextAppTransitionStartX, scaleW), computePivot(mNextAppTransitionStartY, scaleH)); scale.setDuration(duration); scale.setInterpolator( new DecelerateInterpolator(THUMBNAIL_ANIMATION_DECELERATE_FACTOR)); scale.setFillBefore(true); AnimationSet set = new AnimationSet(true); Animation alpha = new AlphaAnimation(1, 0); set.addAnimation(scale); alpha.setDuration(duration); alpha.setInterpolator(new DecelerateInterpolator( THUMBNAIL_ANIMATION_DECELERATE_FACTOR)); set.addAnimation(alpha); set.setFillBefore(true); set.setZAdjustment(Animation.ZORDER_TOP); a = set; } } a.setFillAfter(true); a.setInterpolator(mInterpolator); a.initialize(appWidth, appHeight, appWidth, appHeight); return a; } Animation loadAnimation(WindowManager.LayoutParams lp, int transit, boolean enter, int appWidth, int appHeight) { Animation a; if (mNextAppTransitionType == ActivityOptions.ANIM_CUSTOM) { a = loadAnimation(mNextAppTransitionPackage, enter ? mNextAppTransitionEnter : mNextAppTransitionExit); if (DEBUG_APP_TRANSITIONS || DEBUG_ANIM) Slog.v(TAG, "applyAnimation:" + " anim=" + a + " nextAppTransition=ANIM_CUSTOM" + " transit=" + transit + " isEntrance=" + enter + " Callers=" + Debug.getCallers(3)); } else if (mNextAppTransitionType == ActivityOptions.ANIM_SCALE_UP) { a = createScaleUpAnimationLocked(transit, enter, appWidth, appHeight); if (DEBUG_APP_TRANSITIONS || DEBUG_ANIM) Slog.v(TAG, "applyAnimation:" + " anim=" + a + " nextAppTransition=ANIM_SCALE_UP" + " transit=" + transit + " isEntrance=" + enter + " Callers=" + Debug.getCallers(3)); } else if (mNextAppTransitionType == ActivityOptions.ANIM_THUMBNAIL_SCALE_UP || mNextAppTransitionType == ActivityOptions.ANIM_THUMBNAIL_SCALE_DOWN) { mNextAppTransitionScaleUp = (mNextAppTransitionType == ActivityOptions.ANIM_THUMBNAIL_SCALE_UP); a = createThumbnailAnimationLocked(transit, enter, false, appWidth, appHeight); if (DEBUG_APP_TRANSITIONS || DEBUG_ANIM) { String animName = mNextAppTransitionScaleUp ? "ANIM_THUMBNAIL_SCALE_UP" : "ANIM_THUMBNAIL_SCALE_DOWN"; Slog.v(TAG, "applyAnimation:" + " anim=" + a + " nextAppTransition=" + animName + " transit=" + transit + " isEntrance=" + enter + " Callers=" + Debug.getCallers(3)); } } else { int animAttr = 0; switch (transit) { case WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_activityOpenEnterAnimation : com.android.internal.R.styleable.WindowAnimation_activityOpenExitAnimation; break; case WindowManagerPolicy.TRANSIT_ACTIVITY_CLOSE: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_activityCloseEnterAnimation : com.android.internal.R.styleable.WindowAnimation_activityCloseExitAnimation; break; case WindowManagerPolicy.TRANSIT_TASK_OPEN: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_taskOpenEnterAnimation : com.android.internal.R.styleable.WindowAnimation_taskOpenExitAnimation; break; case WindowManagerPolicy.TRANSIT_TASK_CLOSE: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_taskCloseEnterAnimation : com.android.internal.R.styleable.WindowAnimation_taskCloseExitAnimation; break; case WindowManagerPolicy.TRANSIT_TASK_TO_FRONT: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_taskToFrontEnterAnimation : com.android.internal.R.styleable.WindowAnimation_taskToFrontExitAnimation; break; case WindowManagerPolicy.TRANSIT_TASK_TO_BACK: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_taskToBackEnterAnimation : com.android.internal.R.styleable.WindowAnimation_taskToBackExitAnimation; break; case WindowManagerPolicy.TRANSIT_WALLPAPER_OPEN: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_wallpaperOpenEnterAnimation : com.android.internal.R.styleable.WindowAnimation_wallpaperOpenExitAnimation; break; case WindowManagerPolicy.TRANSIT_WALLPAPER_CLOSE: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_wallpaperCloseEnterAnimation : com.android.internal.R.styleable.WindowAnimation_wallpaperCloseExitAnimation; break; case WindowManagerPolicy.TRANSIT_WALLPAPER_INTRA_OPEN: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_wallpaperIntraOpenEnterAnimation : com.android.internal.R.styleable.WindowAnimation_wallpaperIntraOpenExitAnimation; break; case WindowManagerPolicy.TRANSIT_WALLPAPER_INTRA_CLOSE: animAttr = enter ? com.android.internal.R.styleable.WindowAnimation_wallpaperIntraCloseEnterAnimation : com.android.internal.R.styleable.WindowAnimation_wallpaperIntraCloseExitAnimation; break; } a = animAttr != 0 ? loadAnimation(lp, animAttr) : null; if (DEBUG_APP_TRANSITIONS || DEBUG_ANIM) Slog.v(TAG, "applyAnimation:" + " anim=" + a + " animAttr=0x" + Integer.toHexString(animAttr) + " transit=" + transit + " isEntrance=" + enter + " Callers=" + Debug.getCallers(3)); } return a; } void postAnimationCallback() { if (mNextAppTransitionCallback != null) { mH.sendMessage(mH.obtainMessage(H.DO_ANIMATION_CALLBACK, mNextAppTransitionCallback)); mNextAppTransitionCallback = null; } } void overridePendingAppTransition(String packageName, int enterAnim, int exitAnim, IRemoteCallback startedCallback) { if (isTransitionSet()) { mNextAppTransitionType = ActivityOptions.ANIM_CUSTOM; mNextAppTransitionPackage = packageName; mNextAppTransitionThumbnail = null; mNextAppTransitionEnter = enterAnim; mNextAppTransitionExit = exitAnim; postAnimationCallback(); mNextAppTransitionCallback = startedCallback; } else { postAnimationCallback(); } } void overridePendingAppTransitionScaleUp(int startX, int startY, int startWidth, int startHeight) { if (isTransitionSet()) { mNextAppTransitionType = ActivityOptions.ANIM_SCALE_UP; mNextAppTransitionPackage = null; mNextAppTransitionThumbnail = null; mNextAppTransitionStartX = startX; mNextAppTransitionStartY = startY; mNextAppTransitionStartWidth = startWidth; mNextAppTransitionStartHeight = startHeight; postAnimationCallback(); mNextAppTransitionCallback = null; } } void overridePendingAppTransitionThumb(Bitmap srcThumb, int startX, int startY, IRemoteCallback startedCallback, boolean scaleUp) { if (isTransitionSet()) { mNextAppTransitionType = scaleUp ? ActivityOptions.ANIM_THUMBNAIL_SCALE_UP : ActivityOptions.ANIM_THUMBNAIL_SCALE_DOWN; mNextAppTransitionPackage = null; mNextAppTransitionThumbnail = srcThumb; mNextAppTransitionScaleUp = scaleUp; mNextAppTransitionStartX = startX; mNextAppTransitionStartY = startY; postAnimationCallback(); mNextAppTransitionCallback = startedCallback; } else { postAnimationCallback(); } } @Override public String toString() { return "mNextAppTransition=0x" + Integer.toHexString(mNextAppTransition); } @Override public void dump(PrintWriter pw) { pw.print(" " + this); pw.print(" mAppTransitionReady="); pw.println(mAppTransitionReady); pw.print(" mAppTransitionRunning="); pw.print(mAppTransitionRunning); pw.print(" mAppTransitionTimeout="); pw.println(mAppTransitionTimeout); if (mNextAppTransitionType != ActivityOptions.ANIM_NONE) { pw.print(" mNextAppTransitionType="); pw.println(mNextAppTransitionType); } switch (mNextAppTransitionType) { case ActivityOptions.ANIM_CUSTOM: pw.print(" mNextAppTransitionPackage="); pw.println(mNextAppTransitionPackage); pw.print(" mNextAppTransitionEnter=0x"); pw.print(Integer.toHexString(mNextAppTransitionEnter)); pw.print(" mNextAppTransitionExit=0x"); pw.println(Integer.toHexString(mNextAppTransitionExit)); break; case ActivityOptions.ANIM_SCALE_UP: pw.print(" mNextAppTransitionStartX="); pw.print(mNextAppTransitionStartX); pw.print(" mNextAppTransitionStartY="); pw.println(mNextAppTransitionStartY); pw.print(" mNextAppTransitionStartWidth="); pw.print(mNextAppTransitionStartWidth); pw.print(" mNextAppTransitionStartHeight="); pw.println(mNextAppTransitionStartHeight); break; case ActivityOptions.ANIM_THUMBNAIL_SCALE_UP: case ActivityOptions.ANIM_THUMBNAIL_SCALE_DOWN: pw.print(" mNextAppTransitionThumbnail="); pw.print(mNextAppTransitionThumbnail); pw.print(" mNextAppTransitionStartX="); pw.print(mNextAppTransitionStartX); pw.print(" mNextAppTransitionStartY="); pw.println(mNextAppTransitionStartY); pw.print(" mNextAppTransitionScaleUp="); pw.println(mNextAppTransitionScaleUp); break; } if (mNextAppTransitionCallback != null) { pw.print(" mNextAppTransitionCallback="); pw.println(mNextAppTransitionCallback); } } }