| /* |
| * Copyright (C) 2006 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.launcher3; |
| |
| import android.animation.TimeInterpolator; |
| import android.content.Context; |
| import android.view.animation.Interpolator; |
| import android.widget.Scroller; |
| |
| /** |
| * Extension of {@link android.widget.Scroller} with the ability to modify the |
| * Interpolator post-construction. |
| */ |
| public class LauncherScroller extends Scroller { |
| |
| private final InterpolatorWrapper mInterpolatorWrapper; |
| |
| public LauncherScroller(Context context) { |
| this(context, new InterpolatorWrapper()); |
| } |
| |
| private LauncherScroller(Context context, InterpolatorWrapper interpolatorWrapper) { |
| super(context, interpolatorWrapper); |
| mInterpolatorWrapper = interpolatorWrapper; |
| } |
| |
| public void setInterpolator(TimeInterpolator interpolator) { |
| mInterpolatorWrapper.interpolator = interpolator; |
| } |
| |
| private static class InterpolatorWrapper implements Interpolator { |
| |
| public TimeInterpolator interpolator; |
| |
| @Override |
| public float getInterpolation(float v) { |
| return interpolator == null ? v : interpolator.getInterpolation(v); |
| } |
| } |
| } |