HoneycombMr1AnimatorCompatProvider.java revision c39d9c75590eca86a5e7e32a8824ba04a0d42e9b 
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
17package android.support.v4.animation;
18
19import android.animation.Animator;
20import android.animation.PropertyValuesHolder;
21import android.animation.TimeInterpolator;
22import android.animation.TypeEvaluator;
23import android.animation.ValueAnimator;
24import android.view.View;
25
26/**
27 * Uses framework Animators to provide ValueAnimatorCompat interface.
28 * <p>
29 * This is not a fully implemented API which is why it is not public.
30 */
31class HoneycombMr1AnimatorCompatProvider implements AnimatorProvider {
32
33    private TimeInterpolator mDefaultInterpolator;
34
35    @Override
36    public ValueAnimatorCompat emptyValueAnimator() {
37        return new HoneycombValueAnimatorCompat(ValueAnimator.ofFloat(0f, 1f));
38    }
39
40    static class HoneycombValueAnimatorCompat implements ValueAnimatorCompat {
41
42        final Animator mWrapped;
43
44        public HoneycombValueAnimatorCompat(Animator wrapped) {
45            mWrapped = wrapped;
46        }
47
48        @Override
49        public void setTarget(View view) {
50            mWrapped.setTarget(view);
51        }
52
53        @Override
54        public void addListener(AnimatorListenerCompat listener) {
55            mWrapped.addListener(new AnimatorListenerCompatWrapper(listener, this));
56        }
57
58        @Override
59        public void setDuration(long duration) {
60            mWrapped.setDuration(duration);
61        }
62
63        @Override
64        public void start() {
65            mWrapped.start();
66        }
67
68        @Override
69        public void cancel() {
70            mWrapped.cancel();
71        }
72
73        @Override
74        public void addUpdateListener(final AnimatorUpdateListenerCompat animatorUpdateListener) {
75            if (mWrapped instanceof ValueAnimator) {
76                ((ValueAnimator) mWrapped).addUpdateListener(
77                        new ValueAnimator.AnimatorUpdateListener() {
78                            @Override
79                            public void onAnimationUpdate(ValueAnimator animation) {
80                                animatorUpdateListener
81                                        .onAnimationUpdate(HoneycombValueAnimatorCompat.this);
82                            }
83                        });
84            }
85        }
86
87        @Override
88        public float getAnimatedFraction() {
89            return ((ValueAnimator) mWrapped).getAnimatedFraction();
90        }
91    }
92
93    static class AnimatorListenerCompatWrapper implements Animator.AnimatorListener {
94
95        final AnimatorListenerCompat mWrapped;
96
97        final ValueAnimatorCompat mValueAnimatorCompat;
98
99        public AnimatorListenerCompatWrapper(
100                AnimatorListenerCompat wrapped, ValueAnimatorCompat valueAnimatorCompat) {
101            mWrapped = wrapped;
102            mValueAnimatorCompat = valueAnimatorCompat;
103        }
104
105        @Override
106        public void onAnimationStart(Animator animation) {
107            mWrapped.onAnimationStart(mValueAnimatorCompat);
108        }
109
110        @Override
111        public void onAnimationEnd(Animator animation) {
112            mWrapped.onAnimationEnd(mValueAnimatorCompat);
113        }
114
115        @Override
116        public void onAnimationCancel(Animator animation) {
117            mWrapped.onAnimationCancel(mValueAnimatorCompat);
118        }
119
120        @Override
121        public void onAnimationRepeat(Animator animation) {
122            mWrapped.onAnimationRepeat(mValueAnimatorCompat);
123        }
124    }
125
126    @Override
127    public void clearInterpolator(View view) {
128        if (mDefaultInterpolator == null) {
129            mDefaultInterpolator = new ValueAnimator().getInterpolator();
130        }
131        view.animate().setInterpolator(mDefaultInterpolator);
132    }
133}
134