app/src/main/java/android/support/v4/widget/FriendlyScrollerCompat.java

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/*
 * Copyright (c) 2016 Zhang Hai <Dreaming.in.Code.ZH@Gmail.com>
 * All Rights Reserved.
 */

package android.support.v4.widget;

import android.content.Context;
import android.os.Build;
import android.view.animation.Interpolator;
import android.widget.Scroller;

public class FriendlyScrollerCompat {

    ScrollerCompat mScrollerCompat;

    FriendlyScrollerCompatImpl mImpl;

    interface FriendlyScrollerCompatImpl {
        int getStartX(Object scroller);
        int getStartY(Object scroller);
        void forceFinished(Object scroller, boolean finished);
    }

    static class FriendlyScrollerCompatImplBase implements FriendlyScrollerCompatImpl {

        @Override
        public int getStartX(Object scroller) {
            return ((Scroller) scroller).getStartX();
        }

        @Override
        public int getStartY(Object scroller) {
            return ((Scroller) scroller).getStartY();
        }

        @Override
        public void forceFinished(Object scroller, boolean finished) {
            ((Scroller) scroller).forceFinished(finished);
        }
    }

    static class FriendlyScrollerCompatImplGingerbread implements FriendlyScrollerCompatImpl {

        @Override
        public int getStartX(Object scroller) {
            return FriendlyScrollerCompatGingerbread.getStartX(scroller);
        }

        @Override
        public int getStartY(Object scroller) {
            return FriendlyScrollerCompatGingerbread.getStartY(scroller);
        }

        @Override
        public void forceFinished(Object scroller, boolean finished) {
            FriendlyScrollerCompatGingerbread.forceFinished(scroller, finished);
        }
    }