1/* 2 * Copyright (C) 2017 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 17package android.support.wear.widget; 18 19import android.animation.Animator; 20import android.os.Build; 21import android.support.annotation.RequiresApi; 22import android.support.annotation.RestrictTo; 23import android.support.annotation.RestrictTo.Scope; 24 25/** 26 * Convenience class for listening for Animator events that implements the AnimatorListener 27 * interface and allows extending only methods that are necessary. 28 * 29 * @hide Hidden until this goes through review 30 */ 31@RequiresApi(Build.VERSION_CODES.KITKAT_WATCH) 32@RestrictTo(Scope.LIBRARY_GROUP) 33public class SimpleAnimatorListener implements Animator.AnimatorListener { 34 35 private boolean mWasCanceled; 36 37 @Override 38 public void onAnimationCancel(Animator animator) { 39 mWasCanceled = true; 40 } 41 42 @Override 43 public void onAnimationEnd(Animator animator) { 44 if (!mWasCanceled) { 45 onAnimationComplete(animator); 46 } 47 } 48 49 @Override 50 public void onAnimationRepeat(Animator animator) {} 51 52 @Override 53 public void onAnimationStart(Animator animator) { 54 mWasCanceled = false; 55 } 56 57 /** 58 * Called when the animation finishes. Not called if the animation was canceled. 59 */ 60 public void onAnimationComplete(Animator animator) {} 61 62 /** 63 * Provides information if the animation was cancelled. 64 * 65 * @return True if animation was cancelled. 66 */ 67 public boolean wasCanceled() { 68 return mWasCanceled; 69 } 70} 71