| /* |
| * Copyright 2018 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 androidx.core.view; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.ValueAnimator; |
| import android.os.Build; |
| import android.view.View; |
| import android.view.animation.Interpolator; |
| |
| import java.lang.ref.WeakReference; |
| |
| public final class ViewPropertyAnimatorCompat { |
| private static final String TAG = "ViewAnimatorCompat"; |
| private WeakReference<View> mView; |
| Runnable mStartAction = null; |
| Runnable mEndAction = null; |
| int mOldLayerType = -1; |
| // HACK ALERT! Choosing this id knowing that the framework does not use it anywhere |
| // internally and apps should use ids higher than it |
| static final int LISTENER_TAG_ID = 0x7e000000; |
| |
| ViewPropertyAnimatorCompat(View view) { |
| mView = new WeakReference<View>(view); |
| } |
| |
| static class ViewPropertyAnimatorListenerApi14 implements ViewPropertyAnimatorListener { |
| ViewPropertyAnimatorCompat mVpa; |
| boolean mAnimEndCalled; |
| |
| ViewPropertyAnimatorListenerApi14(ViewPropertyAnimatorCompat vpa) { |
| mVpa = vpa; |
| } |
| |
| @Override |
| public void onAnimationStart(View view) { |
| // Reset our end called flag, since this is a new animation... |
| mAnimEndCalled = false; |
| |
| if (mVpa.mOldLayerType > -1) { |
| view.setLayerType(View.LAYER_TYPE_HARDWARE, null); |
| } |
| if (mVpa.mStartAction != null) { |
| Runnable startAction = mVpa.mStartAction; |
| mVpa.mStartAction = null; |
| startAction.run(); |
| } |
| Object listenerTag = view.getTag(LISTENER_TAG_ID); |
| ViewPropertyAnimatorListener listener = null; |
| if (listenerTag instanceof ViewPropertyAnimatorListener) { |
| listener = (ViewPropertyAnimatorListener) listenerTag; |
| } |
| if (listener != null) { |
| listener.onAnimationStart(view); |
| } |
| } |
| |
| @Override |
| public void onAnimationEnd(View view) { |
| if (mVpa.mOldLayerType > -1) { |
| view.setLayerType(mVpa.mOldLayerType, null); |
| mVpa.mOldLayerType = -1; |
| } |
| if (Build.VERSION.SDK_INT >= 16 || !mAnimEndCalled) { |
| // Pre-v16 seems to have a bug where onAnimationEnd is called |
| // twice, therefore we only dispatch on the first call |
| if (mVpa.mEndAction != null) { |
| Runnable endAction = mVpa.mEndAction; |
| mVpa.mEndAction = null; |
| endAction.run(); |
| } |
| Object listenerTag = view.getTag(LISTENER_TAG_ID); |
| ViewPropertyAnimatorListener listener = null; |
| if (listenerTag instanceof ViewPropertyAnimatorListener) { |
| listener = (ViewPropertyAnimatorListener) listenerTag; |
| } |
| if (listener != null) { |
| listener.onAnimationEnd(view); |
| } |
| mAnimEndCalled = true; |
| } |
| } |
| |
| @Override |
| public void onAnimationCancel(View view) { |
| Object listenerTag = view.getTag(LISTENER_TAG_ID); |
| ViewPropertyAnimatorListener listener = null; |
| if (listenerTag instanceof ViewPropertyAnimatorListener) { |
| listener = (ViewPropertyAnimatorListener) listenerTag; |
| } |
| if (listener != null) { |
| listener.onAnimationCancel(view); |
| } |
| } |
| } |
| |
| /** |
| * Sets the duration for the underlying animator that animates the requested properties. |
| * By default, the animator uses the default value for ValueAnimator. Calling this method |
| * will cause the declared value to be used instead. |
| * |
| * @param value The length of ensuing property animations, in milliseconds. The value |
| * cannot be negative. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat setDuration(long value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().setDuration(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>alpha</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat alpha(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().alpha(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>alpha</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat alphaBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().alphaBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>translationX</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat translationX(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().translationX(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>translationY</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat translationY(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().translationY(value); |
| } |
| return this; |
| } |
| |
| /** |
| * Specifies an action to take place when the next animation ends. The action is only |
| * run if the animation ends normally; if the ViewPropertyAnimator is canceled during |
| * that animation, the runnable will not run. |
| * This method, along with {@link #withStartAction(Runnable)}, is intended to help facilitate |
| * choreographing ViewPropertyAnimator animations with other animations or actions |
| * in the application. |
| * |
| * <p>For example, the following code animates a view to x=200 and then back to 0:</p> |
| * <pre> |
| * Runnable endAction = new Runnable() { |
| * public void run() { |
| * view.animate().x(0); |
| * } |
| * }; |
| * view.animate().x(200).withEndAction(endAction); |
| * </pre> |
| * |
| * <p>For API 14 and 15, this method will run by setting |
| * a listener on the ViewPropertyAnimatorCompat object and running the action |
| * in that listener's {@link ViewPropertyAnimatorListener#onAnimationEnd(View)} method.</p> |
| * |
| * @param runnable The action to run when the next animation ends. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat withEndAction(Runnable runnable) { |
| View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 16) { |
| view.animate().withEndAction(runnable); |
| } else { |
| setListenerInternal(view, new ViewPropertyAnimatorListenerApi14(this)); |
| mEndAction = runnable; |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * Returns the current duration of property animations. If the duration was set on this |
| * object, that value is returned. Otherwise, the default value of the underlying Animator |
| * is returned. |
| * |
| * @see #setDuration(long) |
| * @return The duration of animations, in milliseconds. |
| */ |
| public long getDuration() { |
| View view; |
| if ((view = mView.get()) != null) { |
| return view.animate().getDuration(); |
| } else { |
| return 0; |
| } |
| } |
| |
| /** |
| * Sets the interpolator for the underlying animator that animates the requested properties. |
| * By default, the animator uses the default interpolator for ValueAnimator. Calling this method |
| * will cause the declared object to be used instead. |
| * |
| * @param value The TimeInterpolator to be used for ensuing property animations. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat setInterpolator(Interpolator value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().setInterpolator(value); |
| } |
| return this; |
| } |
| |
| /** |
| * Returns the timing interpolator that this animation uses. |
| * |
| * @return The timing interpolator for this animation. |
| */ |
| public Interpolator getInterpolator() { |
| View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 18) { |
| return (Interpolator) view.animate().getInterpolator(); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Sets the startDelay for the underlying animator that animates the requested properties. |
| * By default, the animator uses the default value for ValueAnimator. Calling this method |
| * will cause the declared value to be used instead. |
| * |
| * @param value The delay of ensuing property animations, in milliseconds. The value |
| * cannot be negative. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat setStartDelay(long value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().setStartDelay(value); |
| } |
| return this; |
| } |
| |
| /** |
| * Returns the current startDelay of property animations. If the startDelay was set on this |
| * object, that value is returned. Otherwise, the default value of the underlying Animator |
| * is returned. |
| * |
| * @see #setStartDelay(long) |
| * @return The startDelay of animations, in milliseconds. |
| */ |
| public long getStartDelay() { |
| View view; |
| if ((view = mView.get()) != null) { |
| return view.animate().getStartDelay(); |
| } else { |
| return 0; |
| } |
| } |
| |
| /** |
| * This method will cause the View's <code>rotation</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat rotation(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().rotation(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>rotation</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat rotationBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().rotationBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>rotationX</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat rotationX(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().rotationX(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>rotationX</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat rotationXBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().rotationXBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>rotationY</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat rotationY(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().rotationY(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>rotationY</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat rotationYBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().rotationYBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>scaleX</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat scaleX(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().scaleX(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>scaleX</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat scaleXBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().scaleXBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>scaleY</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat scaleY(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().scaleY(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>scaleY</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat scaleYBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().scaleYBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * Cancels all property animations that are currently running or pending. |
| */ |
| public void cancel() { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().cancel(); |
| } |
| } |
| |
| /** |
| * This method will cause the View's <code>x</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat x(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().x(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>x</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat xBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().xBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>y</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The value to be animated to. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat y(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().y(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>y</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat yBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().yBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>translationX</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat translationXBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().translationXBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>translationY</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat translationYBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().translationYBy(value); |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>translationZ</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * <p>Prior to API 21, this method will do nothing.</p> |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat translationZBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| view.animate().translationZBy(value); |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>translationZ</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * <p>Prior to API 21, this method will do nothing.</p> |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat translationZ(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| view.animate().translationZ(value); |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>z</code> property to be animated to the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * <p>Prior to API 21, this method will do nothing.</p> |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat z(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| view.animate().z(value); |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * This method will cause the View's <code>z</code> property to be animated by the |
| * specified value. Animations already running on the property will be canceled. |
| * |
| * <p>Prior to API 21, this method will do nothing.</p> |
| * |
| * @param value The amount to be animated by, as an offset from the current value. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat zBy(float value) { |
| View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| view.animate().zBy(value); |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * Starts the currently pending property animations immediately. Calling <code>start()</code> |
| * is optional because all animations start automatically at the next opportunity. However, |
| * if the animations are needed to start immediately and synchronously (not at the time when |
| * the next event is processed by the hierarchy, which is when the animations would begin |
| * otherwise), then this method can be used. |
| */ |
| public void start() { |
| View view; |
| if ((view = mView.get()) != null) { |
| view.animate().start(); |
| } |
| } |
| |
| /** |
| * The View associated with this ViewPropertyAnimator will have its |
| * {@link View#setLayerType(int, android.graphics.Paint) layer type} set to |
| * {@link View#LAYER_TYPE_HARDWARE} for the duration of the next animation. |
| * As stated in the documentation for {@link View#LAYER_TYPE_HARDWARE}, |
| * the actual type of layer used internally depends on the runtime situation of the |
| * view. If the activity and this view are hardware-accelerated, then the layer will be |
| * accelerated as well. If the activity or the view is not accelerated, then the layer will |
| * effectively be the same as {@link View#LAYER_TYPE_SOFTWARE}. |
| * |
| * <p>This state is not persistent, either on the View or on this ViewPropertyAnimator: the |
| * layer type of the View will be restored when the animation ends to what it was when this |
| * method was called, and this setting on ViewPropertyAnimator is only valid for the next |
| * animation. Note that calling this method and then independently setting the layer type of |
| * the View (by a direct call to |
| * {@link View#setLayerType(int, android.graphics.Paint)}) will result in some |
| * inconsistency, including having the layer type restored to its pre-withLayer() |
| * value when the animation ends.</p> |
| * |
| * <p>For API 14 and 15, this method will run by setting |
| * a listener on the ViewPropertyAnimatorCompat object, setting a hardware layer in |
| * the listener's {@link ViewPropertyAnimatorListener#onAnimationStart(View)} method, |
| * and then restoring the orignal layer type in the listener's |
| * {@link ViewPropertyAnimatorListener#onAnimationEnd(View)} method.</p> |
| * |
| * @see View#setLayerType(int, android.graphics.Paint) |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat withLayer() { |
| View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 16) { |
| view.animate().withLayer(); |
| } else { |
| mOldLayerType = view.getLayerType(); |
| setListenerInternal(view, new ViewPropertyAnimatorListenerApi14(this)); |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * Specifies an action to take place when the next animation runs. If there is a |
| * {@link #setStartDelay(long) startDelay} set on this ViewPropertyAnimator, then the |
| * action will run after that startDelay expires, when the actual animation begins. |
| * This method, along with {@link #withEndAction(Runnable)}, is intended to help facilitate |
| * choreographing ViewPropertyAnimator animations with other animations or actions |
| * in the application. |
| * |
| * <p>For API 14 and 15, this method will run by setting |
| * a listener on the ViewPropertyAnimatorCompat object and running the action |
| * in that listener's {@link ViewPropertyAnimatorListener#onAnimationStart(View)} method.</p> |
| * |
| * @param runnable The action to run when the next animation starts. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat withStartAction(Runnable runnable) { |
| View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 16) { |
| view.animate().withStartAction(runnable); |
| } else { |
| setListenerInternal(view, new ViewPropertyAnimatorListenerApi14(this)); |
| mStartAction = runnable; |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * Sets a listener for events in the underlying Animators that run the property |
| * animations. |
| * |
| * @param listener The listener to be called with AnimatorListener events. A value of |
| * <code>null</code> removes any existing listener. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat setListener(final ViewPropertyAnimatorListener listener) { |
| final View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 16) { |
| setListenerInternal(view, listener); |
| } else { |
| view.setTag(LISTENER_TAG_ID, listener); |
| setListenerInternal(view, new ViewPropertyAnimatorListenerApi14(this)); |
| } |
| } |
| return this; |
| } |
| |
| private void setListenerInternal(final View view, final ViewPropertyAnimatorListener listener) { |
| if (listener != null) { |
| view.animate().setListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationCancel(Animator animation) { |
| listener.onAnimationCancel(view); |
| } |
| |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| listener.onAnimationEnd(view); |
| } |
| |
| @Override |
| public void onAnimationStart(Animator animation) { |
| listener.onAnimationStart(view); |
| } |
| }); |
| } else { |
| view.animate().setListener(null); |
| } |
| } |
| |
| /** |
| * Sets a listener for update events in the underlying Animator that runs |
| * the property animations. |
| * |
| * <p>Prior to API 19, this method will do nothing.</p> |
| * |
| * @param listener The listener to be called with update events. A value of |
| * <code>null</code> removes any existing listener. |
| * @return This object, allowing calls to methods in this class to be chained. |
| */ |
| public ViewPropertyAnimatorCompat setUpdateListener( |
| final ViewPropertyAnimatorUpdateListener listener) { |
| final View view; |
| if ((view = mView.get()) != null) { |
| if (Build.VERSION.SDK_INT >= 19) { |
| ValueAnimator.AnimatorUpdateListener wrapped = null; |
| if (listener != null) { |
| wrapped = new ValueAnimator.AnimatorUpdateListener() { |
| @Override |
| public void onAnimationUpdate(ValueAnimator valueAnimator) { |
| listener.onAnimationUpdate(view); |
| } |
| }; |
| } |
| view.animate().setUpdateListener(wrapped); |
| } |
| } |
| return this; |
| } |
| } |
