Fixed AppBarLayout+RecyclerView fling bug

NoBounceBehavior.java

package your.package;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.design.widget.AppBarLayout;
import android.support.design.widget.CoordinatorLayout;
import android.util.AttributeSet;
import android.view.View;
import android.widget.OverScroller;

import java.lang.reflect.Field;

public class NoBounceBehavior extends AppBarLayout.Behavior {

    private OverScroller mHeaderScroller;

    public NoBounceBehavior(Context context, AttributeSet attrs) {
        super(context, attrs);
        findHeaderScroller(context);
    }
    
    private void findHeaderScroller(Context context) {
        if (mHeaderScroller != null)
            return;
        mHeaderScroller = new OverScroller(context);
        try {
            Class<?> clzHeaderBehavior = getClass().getSuperclass().getSuperclass();
            Field fieldScroller = clzHeaderBehavior.getDeclaredField("mScroller");
            fieldScroller.setAccessible(true);
            fieldScroller.set(this, mHeaderScroller);
        } catch (Exception e) {}
    }

    @Override
    public void onNestedScrollAccepted(@NonNull CoordinatorLayout coordinatorLayout, @NonNull AppBarLayout child, @NonNull View directTargetChild, @NonNull View target, int axes, int type) {
        super.onNestedScrollAccepted(coordinatorLayout, child, directTargetChild, target, axes, type);
        if (mHeaderScroller != null && mHeaderScroller.computeScrollOffset()) {
            mHeaderScroller.forceFinished(true);
        }
    }
}