1/*
2 * Copyright (C) 2011 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 com.android.launcher2;
18
19import android.animation.ValueAnimator;
20import android.animation.ValueAnimator.AnimatorUpdateListener;
21
22abstract class LauncherAnimatorUpdateListener implements AnimatorUpdateListener {
23    public void onAnimationUpdate(ValueAnimator animation) {
24        final float b = (Float) animation.getAnimatedValue();
25        final float a = 1f - b;
26        onAnimationUpdate(a, b);
27    }
28
29    abstract void onAnimationUpdate(float a, float b);
30}