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/*
* 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);
}
}
}