| /* |
| * Copyright (C) 2012 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.view; |
| |
| import com.android.tools.layoutlib.annotations.LayoutlibDelegate; |
| |
| import android.animation.AnimationHandler; |
| import android.util.TimeUtils; |
| import android.view.animation.AnimationUtils; |
| |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| /** |
| * Delegate used to provide new implementation of a select few methods of {@link Choreographer} |
| * |
| * Through the layoutlib_create tool, the original methods of Choreographer have been |
| * replaced by calls to methods of the same name in this delegate class. |
| * |
| */ |
| public class Choreographer_Delegate { |
| private static final AtomicReference<Choreographer> mInstance = new AtomicReference<Choreographer>(); |
| |
| @LayoutlibDelegate |
| public static Choreographer getInstance() { |
| if (mInstance.get() == null) { |
| mInstance.compareAndSet(null, Choreographer.getInstance_Original()); |
| } |
| |
| return mInstance.get(); |
| } |
| |
| @LayoutlibDelegate |
| public static float getRefreshRate() { |
| return 60.f; |
| } |
| |
| @LayoutlibDelegate |
| static void scheduleVsyncLocked(Choreographer thisChoreographer) { |
| // do nothing |
| } |
| |
| public static void doFrame(long frameTimeNanos) { |
| Choreographer thisChoreographer = Choreographer.getInstance(); |
| |
| AnimationUtils.lockAnimationClock(frameTimeNanos / TimeUtils.NANOS_PER_MS); |
| |
| try { |
| thisChoreographer.mLastFrameTimeNanos = frameTimeNanos - thisChoreographer.getFrameIntervalNanos(); |
| thisChoreographer.mFrameInfo.markInputHandlingStart(); |
| thisChoreographer.doCallbacks(Choreographer.CALLBACK_INPUT, frameTimeNanos); |
| |
| thisChoreographer.mFrameInfo.markAnimationsStart(); |
| thisChoreographer.doCallbacks(Choreographer.CALLBACK_ANIMATION, frameTimeNanos); |
| |
| thisChoreographer.mFrameInfo.markPerformTraversalsStart(); |
| thisChoreographer.doCallbacks(Choreographer.CALLBACK_TRAVERSAL, frameTimeNanos); |
| |
| thisChoreographer.doCallbacks(Choreographer.CALLBACK_COMMIT, frameTimeNanos); |
| } finally { |
| AnimationUtils.unlockAnimationClock(); |
| } |
| } |
| |
| public static void clearFrames() { |
| Choreographer thisChoreographer = Choreographer.getInstance(); |
| |
| thisChoreographer.removeCallbacks(Choreographer.CALLBACK_INPUT, null, null); |
| thisChoreographer.removeCallbacks(Choreographer.CALLBACK_ANIMATION, null, null); |
| thisChoreographer.removeCallbacks(Choreographer.CALLBACK_TRAVERSAL, null, null); |
| thisChoreographer.removeCallbacks(Choreographer.CALLBACK_COMMIT, null, null); |
| |
| // Release animation handler instance since it holds references to the callbacks |
| AnimationHandler.sAnimatorHandler.set(null); |
| } |
| |
| public static void dispose() { |
| clearFrames(); |
| Choreographer.releaseInstance(); |
| } |
| } |