| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License |
| */ |
| |
| package com.android.settingslib.animation; |
| |
| import android.content.Context; |
| import android.view.animation.AnimationUtils; |
| import android.view.animation.Interpolator; |
| |
| /** |
| * A class to make nice disappear transitions for views in a tabular layout. |
| */ |
| public class DisappearAnimationUtils extends AppearAnimationUtils { |
| |
| public DisappearAnimationUtils(Context ctx) { |
| this(ctx, DEFAULT_APPEAR_DURATION, |
| 1.0f, 1.0f, |
| AnimationUtils.loadInterpolator(ctx, android.R.interpolator.fast_out_linear_in)); |
| } |
| |
| public DisappearAnimationUtils(Context ctx, long duration, float translationScaleFactor, |
| float delayScaleFactor, Interpolator interpolator) { |
| this(ctx, duration, translationScaleFactor, delayScaleFactor, interpolator, |
| ROW_TRANSLATION_SCALER); |
| } |
| |
| public DisappearAnimationUtils(Context ctx, long duration, float translationScaleFactor, |
| float delayScaleFactor, Interpolator interpolator, RowTranslationScaler rowScaler) { |
| super(ctx, duration, translationScaleFactor, delayScaleFactor, interpolator); |
| mRowTranslationScaler = rowScaler; |
| mAppearing = false; |
| } |
| |
| protected long calculateDelay(int row, int col) { |
| return (long) ((row * 60 + col * (Math.pow(row, 0.4) + 0.4) * 10) * mDelayScale); |
| } |
| |
| private static final RowTranslationScaler ROW_TRANSLATION_SCALER = new RowTranslationScaler() { |
| |
| @Override |
| public float getRowTranslationScale(int row, int numRows) { |
| return (float) (Math.pow((numRows - row), 2) / numRows); |
| } |
| }; |
| } |