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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package android.support.wearable.view;
     18 
     19 import android.animation.Animator;
     20 import android.annotation.TargetApi;
     21 import android.os.Build;
     22 
     23 /**
     24  * Convenience class for listening for Animator events that implements the AnimatorListener
     25  * interface and allows extending only methods that are necessary.
     26  */
     27 @TargetApi(Build.VERSION_CODES.KITKAT_WATCH)
     28 public class SimpleAnimatorListener implements Animator.AnimatorListener {
     29 
     30     private boolean mWasCanceled;
     31 
     32     @Override
     33     public void onAnimationCancel(Animator animator) {
     34         mWasCanceled = true;
     35     }
     36 
     37     @Override
     38     public void onAnimationEnd(Animator animator) {
     39         if (!mWasCanceled) {
     40             onAnimationComplete(animator);
     41         }
     42     }
     43 
     44     @Override
     45     public void onAnimationRepeat(Animator animator) {
     46     }
     47 
     48     @Override
     49     public void onAnimationStart(Animator animator) {
     50         mWasCanceled = false;
     51     }
     52 
     53     /**
     54      * Called when the animation finishes. Not called if the animation was canceled.
     55      */
     56     public void onAnimationComplete(Animator animator) {
     57     }
     58 
     59     /**
     60      * Provides information if the animation was cancelled.
     61      * @return True if animation was cancelled.
     62      */
     63     public boolean wasCanceled() {
     64         return mWasCanceled;
     65     }
     66 
     67 }
     68