1/*
2 * Copyright (C) 2014 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.keyguard;
18
19import android.content.Context;
20import android.view.View;
21import android.view.animation.AnimationUtils;
22import android.view.animation.Interpolator;
23
24/**
25 * A class to make nice disappear transitions for views in a tabular layout.
26 */
27public class DisappearAnimationUtils extends AppearAnimationUtils {
28
29    public DisappearAnimationUtils(Context ctx) {
30        this(ctx, DEFAULT_APPEAR_DURATION,
31                1.0f, 1.0f,
32                AnimationUtils.loadInterpolator(ctx, android.R.interpolator.linear_out_slow_in));
33    }
34
35    public DisappearAnimationUtils(Context ctx, long duration, float translationScaleFactor,
36            float delayScaleFactor, Interpolator interpolator) {
37        super(ctx, duration, translationScaleFactor, delayScaleFactor, interpolator);
38        mScaleTranslationWithRow = true;
39        mAppearing = false;
40    }
41
42    protected long calculateDelay(int row, int col) {
43        return (long) ((row * 60 + col * (Math.pow(row, 0.4) + 0.4) * 10) * mDelayScale);
44    }
45}
46