| /* |
| * Copyright (C) 2010 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 static com.android.server.wm.ScreenRotationAnimationProto.ANIMATION_RUNNING; |
| import static com.android.server.wm.ScreenRotationAnimationProto.STARTED; |
| import static com.android.server.wm.WindowManagerDebugConfig.SHOW_SURFACE_ALLOC; |
| import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS; |
| import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; |
| import static com.android.server.wm.WindowManagerService.TYPE_LAYER_MULTIPLIER; |
| import static com.android.server.wm.WindowStateAnimator.WINDOW_FREEZE_LAYER; |
| |
| import android.content.Context; |
| import android.graphics.Matrix; |
| import android.graphics.Rect; |
| import android.util.Slog; |
| import android.util.proto.ProtoOutputStream; |
| import android.view.Display; |
| import android.view.DisplayInfo; |
| import android.view.Surface; |
| import android.view.Surface.OutOfResourcesException; |
| import android.view.SurfaceControl; |
| import android.view.animation.Animation; |
| import android.view.animation.AnimationUtils; |
| import android.view.animation.Transformation; |
| |
| import java.io.PrintWriter; |
| |
| class ScreenRotationAnimation { |
| private static final String TAG = TAG_WITH_CLASS_NAME ? "ScreenRotationAnimation" : TAG_WM; |
| |
| /* |
| * Layers for screen rotation animation. We put these layers above |
| * WINDOW_FREEZE_LAYER so that screen freeze will cover all windows. |
| */ |
| private static final int SCREEN_FREEZE_LAYER_BASE = WINDOW_FREEZE_LAYER + TYPE_LAYER_MULTIPLIER; |
| private static final int SCREEN_FREEZE_LAYER_ENTER = SCREEN_FREEZE_LAYER_BASE; |
| private static final int SCREEN_FREEZE_LAYER_SCREENSHOT = SCREEN_FREEZE_LAYER_BASE + 1; |
| private static final int SCREEN_FREEZE_LAYER_EXIT = SCREEN_FREEZE_LAYER_BASE + 2; |
| |
| private final Context mContext; |
| private final DisplayContent mDisplayContent; |
| private final float[] mTmpFloats = new float[9]; |
| private final Transformation mRotateExitTransformation = new Transformation(); |
| private final Transformation mRotateEnterTransformation = new Transformation(); |
| // Complete transformations being applied. |
| private final Transformation mExitTransformation = new Transformation(); |
| private final Transformation mEnterTransformation = new Transformation(); |
| private final Matrix mFrameInitialMatrix = new Matrix(); |
| private final Matrix mSnapshotInitialMatrix = new Matrix(); |
| private final Matrix mSnapshotFinalMatrix = new Matrix(); |
| private final Matrix mExitFrameFinalMatrix = new Matrix(); |
| private final WindowManagerService mService; |
| private SurfaceControl mSurfaceControl; |
| private BlackFrame mEnteringBlackFrame; |
| private int mWidth, mHeight; |
| |
| private int mOriginalRotation; |
| private int mOriginalWidth, mOriginalHeight; |
| private int mCurRotation; |
| |
| private Rect mOriginalDisplayRect = new Rect(); |
| private Rect mCurrentDisplayRect = new Rect(); |
| // The current active animation to move from the old to the new rotated |
| // state. Which animation is run here will depend on the old and new |
| // rotations. |
| private Animation mRotateExitAnimation; |
| private Animation mRotateEnterAnimation; |
| private boolean mStarted; |
| private boolean mAnimRunning; |
| private boolean mFinishAnimReady; |
| private long mFinishAnimStartTime; |
| private boolean mForceDefaultOrientation; |
| private BlackFrame mExitingBlackFrame; |
| private boolean mMoreRotateEnter; |
| private boolean mMoreRotateExit; |
| private long mHalfwayPoint; |
| |
| public ScreenRotationAnimation(Context context, DisplayContent displayContent, |
| boolean fixedToUserRotation, boolean isSecure, WindowManagerService service) { |
| mService = service; |
| mContext = context; |
| mDisplayContent = displayContent; |
| displayContent.getBounds(mOriginalDisplayRect); |
| |
| // Screenshot does NOT include rotation! |
| final Display display = displayContent.getDisplay(); |
| int originalRotation = display.getRotation(); |
| final int originalWidth; |
| final int originalHeight; |
| DisplayInfo displayInfo = displayContent.getDisplayInfo(); |
| if (fixedToUserRotation) { |
| // Emulated orientation. |
| mForceDefaultOrientation = true; |
| originalWidth = displayContent.mBaseDisplayWidth; |
| originalHeight = displayContent.mBaseDisplayHeight; |
| } else { |
| // Normal situation |
| originalWidth = displayInfo.logicalWidth; |
| originalHeight = displayInfo.logicalHeight; |
| } |
| if (originalRotation == Surface.ROTATION_90 |
| || originalRotation == Surface.ROTATION_270) { |
| mWidth = originalHeight; |
| mHeight = originalWidth; |
| } else { |
| mWidth = originalWidth; |
| mHeight = originalHeight; |
| } |
| |
| mOriginalRotation = originalRotation; |
| mOriginalWidth = originalWidth; |
| mOriginalHeight = originalHeight; |
| |
| final SurfaceControl.Transaction t = mService.mTransactionFactory.make(); |
| try { |
| mSurfaceControl = displayContent.makeOverlay() |
| .setName("ScreenshotSurface") |
| .setBufferSize(mWidth, mHeight) |
| .setSecure(isSecure) |
| .build(); |
| |
| // In case display bounds change, screenshot buffer and surface may mismatch so set a |
| // scaling mode. |
| SurfaceControl.Transaction t2 = mService.mTransactionFactory.make(); |
| t2.setOverrideScalingMode(mSurfaceControl, Surface.SCALING_MODE_SCALE_TO_WINDOW); |
| t2.apply(true /* sync */); |
| |
| // Capture a screenshot into the surface we just created. |
| final int displayId = display.getDisplayId(); |
| final Surface surface = mService.mSurfaceFactory.make(); |
| surface.copyFrom(mSurfaceControl); |
| SurfaceControl.ScreenshotGraphicBuffer gb = |
| mService.mDisplayManagerInternal.screenshot(displayId); |
| if (gb != null) { |
| try { |
| surface.attachAndQueueBufferWithColorSpace(gb.getGraphicBuffer(), |
| gb.getColorSpace()); |
| } catch (RuntimeException e) { |
| Slog.w(TAG, "Failed to attach screenshot - " + e.getMessage()); |
| } |
| // If the screenshot contains secure layers, we have to make sure the |
| // screenshot surface we display it in also has FLAG_SECURE so that |
| // the user can not screenshot secure layers via the screenshot surface. |
| if (gb.containsSecureLayers()) { |
| t.setSecure(mSurfaceControl, true); |
| } |
| t.setLayer(mSurfaceControl, SCREEN_FREEZE_LAYER_SCREENSHOT); |
| t.setAlpha(mSurfaceControl, 0); |
| t.show(mSurfaceControl); |
| } else { |
| Slog.w(TAG, "Unable to take screenshot of display " + displayId); |
| } |
| surface.destroy(); |
| } catch (OutOfResourcesException e) { |
| Slog.w(TAG, "Unable to allocate freeze surface", e); |
| } |
| |
| if (SHOW_TRANSACTIONS || SHOW_SURFACE_ALLOC) { |
| Slog.i(TAG_WM, |
| " FREEZE " + mSurfaceControl + ": CREATE"); |
| } |
| setRotation(t, originalRotation); |
| t.apply(); |
| } |
| |
| private static void createRotationMatrix(int rotation, int width, int height, |
| Matrix outMatrix) { |
| switch (rotation) { |
| case Surface.ROTATION_0: |
| outMatrix.reset(); |
| break; |
| case Surface.ROTATION_90: |
| outMatrix.setRotate(90, 0, 0); |
| outMatrix.postTranslate(height, 0); |
| break; |
| case Surface.ROTATION_180: |
| outMatrix.setRotate(180, 0, 0); |
| outMatrix.postTranslate(width, height); |
| break; |
| case Surface.ROTATION_270: |
| outMatrix.setRotate(270, 0, 0); |
| outMatrix.postTranslate(0, width); |
| break; |
| } |
| } |
| |
| public void writeToProto(ProtoOutputStream proto, long fieldId) { |
| final long token = proto.start(fieldId); |
| proto.write(STARTED, mStarted); |
| proto.write(ANIMATION_RUNNING, mAnimRunning); |
| proto.end(token); |
| } |
| |
| boolean hasScreenshot() { |
| return mSurfaceControl != null; |
| } |
| |
| private void setSnapshotTransform(SurfaceControl.Transaction t, Matrix matrix, float alpha) { |
| if (mSurfaceControl != null) { |
| matrix.getValues(mTmpFloats); |
| float x = mTmpFloats[Matrix.MTRANS_X]; |
| float y = mTmpFloats[Matrix.MTRANS_Y]; |
| if (mForceDefaultOrientation) { |
| mDisplayContent.getBounds(mCurrentDisplayRect); |
| x -= mCurrentDisplayRect.left; |
| y -= mCurrentDisplayRect.top; |
| } |
| t.setPosition(mSurfaceControl, x, y); |
| t.setMatrix(mSurfaceControl, |
| mTmpFloats[Matrix.MSCALE_X], mTmpFloats[Matrix.MSKEW_Y], |
| mTmpFloats[Matrix.MSKEW_X], mTmpFloats[Matrix.MSCALE_Y]); |
| t.setAlpha(mSurfaceControl, alpha); |
| } |
| } |
| |
| public void printTo(String prefix, PrintWriter pw) { |
| pw.print(prefix); pw.print("mSurface="); pw.print(mSurfaceControl); |
| pw.print(" mWidth="); pw.print(mWidth); |
| pw.print(" mHeight="); pw.println(mHeight); |
| pw.print(prefix); pw.print("mExitingBlackFrame="); pw.println(mExitingBlackFrame); |
| if (mExitingBlackFrame != null) { |
| mExitingBlackFrame.printTo(prefix + " ", pw); |
| } |
| pw.print(prefix); pw.print("mEnteringBlackFrame="); pw.println(mEnteringBlackFrame); |
| if (mEnteringBlackFrame != null) { |
| mEnteringBlackFrame.printTo(prefix + " ", pw); |
| } |
| pw.print(prefix); pw.print("mCurRotation="); pw.print(mCurRotation); |
| pw.print(" mOriginalRotation="); pw.println(mOriginalRotation); |
| pw.print(prefix); pw.print("mOriginalWidth="); pw.print(mOriginalWidth); |
| pw.print(" mOriginalHeight="); pw.println(mOriginalHeight); |
| pw.print(prefix); pw.print("mStarted="); pw.print(mStarted); |
| pw.print(" mAnimRunning="); pw.print(mAnimRunning); |
| pw.print(" mFinishAnimReady="); pw.print(mFinishAnimReady); |
| pw.print(" mFinishAnimStartTime="); pw.println(mFinishAnimStartTime); |
| pw.print(prefix); pw.print("mRotateExitAnimation="); pw.print(mRotateExitAnimation); |
| pw.print(" "); mRotateExitTransformation.printShortString(pw); pw.println(); |
| pw.print(prefix); pw.print("mRotateEnterAnimation="); pw.print(mRotateEnterAnimation); |
| pw.print(" "); mRotateEnterTransformation.printShortString(pw); pw.println(); |
| pw.print(prefix); pw.print("mExitTransformation="); |
| mExitTransformation.printShortString(pw); pw.println(); |
| pw.print(prefix); pw.print("mEnterTransformation="); |
| mEnterTransformation.printShortString(pw); pw.println(); |
| pw.print(prefix); pw.print("mFrameInitialMatrix="); |
| mFrameInitialMatrix.printShortString(pw); |
| pw.println(); |
| pw.print(prefix); pw.print("mSnapshotInitialMatrix="); |
| mSnapshotInitialMatrix.printShortString(pw); |
| pw.print(" mSnapshotFinalMatrix="); mSnapshotFinalMatrix.printShortString(pw); |
| pw.println(); |
| pw.print(prefix); pw.print("mExitFrameFinalMatrix="); |
| mExitFrameFinalMatrix.printShortString(pw); |
| pw.println(); |
| pw.print(prefix); pw.print("mForceDefaultOrientation="); pw.print(mForceDefaultOrientation); |
| if (mForceDefaultOrientation) { |
| pw.print(" mOriginalDisplayRect="); pw.print(mOriginalDisplayRect.toShortString()); |
| pw.print(" mCurrentDisplayRect="); pw.println(mCurrentDisplayRect.toShortString()); |
| } |
| } |
| |
| public void setRotation(SurfaceControl.Transaction t, int rotation) { |
| mCurRotation = rotation; |
| |
| // Compute the transformation matrix that must be applied |
| // to the snapshot to make it stay in the same original position |
| // with the current screen rotation. |
| int delta = DisplayContent.deltaRotation(rotation, Surface.ROTATION_0); |
| createRotationMatrix(delta, mWidth, mHeight, mSnapshotInitialMatrix); |
| |
| setSnapshotTransform(t, mSnapshotInitialMatrix, 1.0f); |
| } |
| |
| public boolean setRotation(SurfaceControl.Transaction t, int rotation, |
| long maxAnimationDuration, float animationScale, int finalWidth, int finalHeight) { |
| setRotation(t, rotation); |
| |
| // Don't start animation yet. |
| return false; |
| } |
| |
| /** |
| * Returns true if animating. |
| */ |
| private boolean startAnimation(SurfaceControl.Transaction t, long maxAnimationDuration, |
| float animationScale, int finalWidth, int finalHeight, boolean dismissing, |
| int exitAnim, int enterAnim) { |
| if (mSurfaceControl == null) { |
| // Can't do animation. |
| return false; |
| } |
| if (mStarted) { |
| return true; |
| } |
| |
| mStarted = true; |
| |
| // Figure out how the screen has moved from the original rotation. |
| int delta = DisplayContent.deltaRotation(mCurRotation, mOriginalRotation); |
| |
| final boolean customAnim; |
| if (exitAnim != 0 && enterAnim != 0) { |
| customAnim = true; |
| mRotateExitAnimation = AnimationUtils.loadAnimation(mContext, exitAnim); |
| mRotateEnterAnimation = AnimationUtils.loadAnimation(mContext, enterAnim); |
| } else { |
| customAnim = false; |
| switch (delta) { |
| case Surface.ROTATION_0: |
| mRotateExitAnimation = AnimationUtils.loadAnimation(mContext, |
| com.android.internal.R.anim.screen_rotate_0_exit); |
| mRotateEnterAnimation = AnimationUtils.loadAnimation(mContext, |
| com.android.internal.R.anim.screen_rotate_0_enter); |
| break; |
| case Surface.ROTATION_90: |
| mRotateExitAnimation = AnimationUtils.loadAnimation(mContext, |
| com.android.internal.R.anim.screen_rotate_plus_90_exit); |
| mRotateEnterAnimation = AnimationUtils.loadAnimation(mContext, |
| com.android.internal.R.anim.screen_rotate_plus_90_enter); |
| break; |
| case Surface.ROTATION_180: |
| mRotateExitAnimation = AnimationUtils.loadAnimation(mContext, |
| com.android.internal.R.anim.screen_rotate_180_exit); |
| mRotateEnterAnimation = AnimationUtils.loadAnimation(mContext, |
| com.android.internal.R.anim.screen_rotate_180_enter); |
| break; |
| case Surface.ROTATION_270: |
| mRotateExitAnimation = AnimationUtils.loadAnimation(mContext, |
| com.android.internal.R.anim.screen_rotate_minus_90_exit); |
| mRotateEnterAnimation = AnimationUtils.loadAnimation(mContext, |
| com.android.internal.R.anim.screen_rotate_minus_90_enter); |
| break; |
| } |
| } |
| |
| // Initialize the animations. This is a hack, redefining what "parent" |
| // means to allow supplying the last and next size. In this definition |
| // "%p" is the original (let's call it "previous") size, and "%" is the |
| // screen's current/new size. |
| mRotateEnterAnimation.initialize(finalWidth, finalHeight, mOriginalWidth, mOriginalHeight); |
| mRotateExitAnimation.initialize(finalWidth, finalHeight, mOriginalWidth, mOriginalHeight); |
| mAnimRunning = false; |
| mFinishAnimReady = false; |
| mFinishAnimStartTime = -1; |
| |
| mRotateExitAnimation.restrictDuration(maxAnimationDuration); |
| mRotateExitAnimation.scaleCurrentDuration(animationScale); |
| mRotateEnterAnimation.restrictDuration(maxAnimationDuration); |
| mRotateEnterAnimation.scaleCurrentDuration(animationScale); |
| |
| if (!customAnim && mExitingBlackFrame == null) { |
| try { |
| // Compute the transformation matrix that must be applied |
| // the the black frame to make it stay in the initial position |
| // before the new screen rotation. This is different than the |
| // snapshot transformation because the snapshot is always based |
| // of the native orientation of the screen, not the orientation |
| // we were last in. |
| createRotationMatrix(delta, mOriginalWidth, mOriginalHeight, mFrameInitialMatrix); |
| |
| final Rect outer; |
| final Rect inner; |
| if (mForceDefaultOrientation) { |
| // Going from a smaller Display to a larger Display, add curtains to sides |
| // or top and bottom. Going from a larger to smaller display will result in |
| // no BlackSurfaces being constructed. |
| outer = mCurrentDisplayRect; |
| inner = mOriginalDisplayRect; |
| } else { |
| outer = new Rect(-mOriginalWidth * 1, -mOriginalHeight * 1, |
| mOriginalWidth * 2, mOriginalHeight * 2); |
| inner = new Rect(0, 0, mOriginalWidth, mOriginalHeight); |
| } |
| mExitingBlackFrame = new BlackFrame(mService.mTransactionFactory, t, outer, inner, |
| SCREEN_FREEZE_LAYER_EXIT, mDisplayContent, mForceDefaultOrientation); |
| mExitingBlackFrame.setMatrix(t, mFrameInitialMatrix); |
| } catch (OutOfResourcesException e) { |
| Slog.w(TAG, "Unable to allocate black surface", e); |
| } |
| } |
| |
| if (customAnim && mEnteringBlackFrame == null) { |
| try { |
| Rect outer = new Rect(-finalWidth * 1, -finalHeight * 1, |
| finalWidth * 2, finalHeight * 2); |
| Rect inner = new Rect(0, 0, finalWidth, finalHeight); |
| mEnteringBlackFrame = new BlackFrame(mService.mTransactionFactory, t, outer, inner, |
| SCREEN_FREEZE_LAYER_ENTER, mDisplayContent, false); |
| } catch (OutOfResourcesException e) { |
| Slog.w(TAG, "Unable to allocate black surface", e); |
| } |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Returns true if animating. |
| */ |
| public boolean dismiss(SurfaceControl.Transaction t, long maxAnimationDuration, |
| float animationScale, int finalWidth, int finalHeight, int exitAnim, int enterAnim) { |
| if (mSurfaceControl == null) { |
| // Can't do animation. |
| return false; |
| } |
| if (!mStarted) { |
| startAnimation(t, maxAnimationDuration, animationScale, finalWidth, finalHeight, |
| true, exitAnim, enterAnim); |
| } |
| if (!mStarted) { |
| return false; |
| } |
| mFinishAnimReady = true; |
| return true; |
| } |
| |
| public void kill() { |
| if (mSurfaceControl != null) { |
| if (SHOW_TRANSACTIONS || |
| SHOW_SURFACE_ALLOC) { |
| Slog.i(TAG_WM, |
| " FREEZE " + mSurfaceControl + ": DESTROY"); |
| } |
| mService.mTransactionFactory.make().remove(mSurfaceControl).apply(); |
| mSurfaceControl = null; |
| } |
| if (mExitingBlackFrame != null) { |
| mExitingBlackFrame.kill(); |
| mExitingBlackFrame = null; |
| } |
| if (mEnteringBlackFrame != null) { |
| mEnteringBlackFrame.kill(); |
| mEnteringBlackFrame = null; |
| } |
| if (mRotateExitAnimation != null) { |
| mRotateExitAnimation.cancel(); |
| mRotateExitAnimation = null; |
| } |
| if (mRotateEnterAnimation != null) { |
| mRotateEnterAnimation.cancel(); |
| mRotateEnterAnimation = null; |
| } |
| } |
| |
| public boolean isAnimating() { |
| return hasAnimations(); |
| } |
| |
| public boolean isRotating() { |
| return mCurRotation != mOriginalRotation; |
| } |
| |
| private boolean hasAnimations() { |
| return mRotateEnterAnimation != null || mRotateExitAnimation != null; |
| } |
| |
| private boolean stepAnimation(long now) { |
| if (now > mHalfwayPoint) { |
| mHalfwayPoint = Long.MAX_VALUE; |
| } |
| if (mFinishAnimReady && mFinishAnimStartTime < 0) { |
| mFinishAnimStartTime = now; |
| } |
| |
| mMoreRotateExit = false; |
| if (mRotateExitAnimation != null) { |
| mMoreRotateExit = mRotateExitAnimation.getTransformation(now, |
| mRotateExitTransformation); |
| } |
| |
| mMoreRotateEnter = false; |
| if (mRotateEnterAnimation != null) { |
| mMoreRotateEnter = mRotateEnterAnimation.getTransformation(now, |
| mRotateEnterTransformation); |
| } |
| |
| if (!mMoreRotateExit) { |
| if (mRotateExitAnimation != null) { |
| mRotateExitAnimation.cancel(); |
| mRotateExitAnimation = null; |
| mRotateExitTransformation.clear(); |
| } |
| } |
| |
| if (!mMoreRotateEnter) { |
| if (mRotateEnterAnimation != null) { |
| mRotateEnterAnimation.cancel(); |
| mRotateEnterAnimation = null; |
| mRotateEnterTransformation.clear(); |
| } |
| } |
| |
| mExitTransformation.set(mRotateExitTransformation); |
| mEnterTransformation.set(mRotateEnterTransformation); |
| |
| final boolean more = mMoreRotateEnter || mMoreRotateExit |
| || !mFinishAnimReady; |
| |
| mSnapshotFinalMatrix.setConcat(mExitTransformation.getMatrix(), mSnapshotInitialMatrix); |
| |
| return more; |
| } |
| |
| void updateSurfaces(SurfaceControl.Transaction t) { |
| if (!mStarted) { |
| return; |
| } |
| |
| if (mSurfaceControl != null) { |
| if (!mMoreRotateExit) { |
| t.hide(mSurfaceControl); |
| } |
| } |
| |
| if (mExitingBlackFrame != null) { |
| if (!mMoreRotateExit) { |
| mExitingBlackFrame.hide(t); |
| } else { |
| mExitFrameFinalMatrix.setConcat(mExitTransformation.getMatrix(), |
| mFrameInitialMatrix); |
| mExitingBlackFrame.setMatrix(t, mExitFrameFinalMatrix); |
| if (mForceDefaultOrientation) { |
| mExitingBlackFrame.setAlpha(t, mExitTransformation.getAlpha()); |
| } |
| } |
| } |
| |
| if (mEnteringBlackFrame != null) { |
| if (!mMoreRotateEnter) { |
| mEnteringBlackFrame.hide(t); |
| } else { |
| mEnteringBlackFrame.setMatrix(t, mEnterTransformation.getMatrix()); |
| } |
| } |
| |
| t.setEarlyWakeup(); |
| setSnapshotTransform(t, mSnapshotFinalMatrix, mExitTransformation.getAlpha()); |
| } |
| |
| public boolean stepAnimationLocked(long now) { |
| if (!hasAnimations()) { |
| mFinishAnimReady = false; |
| return false; |
| } |
| |
| if (!mAnimRunning) { |
| if (mRotateEnterAnimation != null) { |
| mRotateEnterAnimation.setStartTime(now); |
| } |
| if (mRotateExitAnimation != null) { |
| mRotateExitAnimation.setStartTime(now); |
| } |
| mAnimRunning = true; |
| mHalfwayPoint = now + mRotateEnterAnimation.getDuration() / 2; |
| } |
| |
| return stepAnimation(now); |
| } |
| |
| public Transformation getEnterTransformation() { |
| return mEnterTransformation; |
| } |
| } |