如何在SwipeRefreshLayout中禁用刷新，而拖放事件从上到下发生在回收视图Android？

public class CustomSwipeRefreshLayout extends SwipeRefreshLayout {
    private View mTarget;

    public CustomSwipeRefreshLayout(Context context) {
        super(context);
    }

    public CustomSwipeRefreshLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public boolean canChildScrollUp() {
        if (mTarget != null) {
            if (mTarget instanceof RecyclerView) {
                RecyclerView recyclerView = (RecyclerView) mTarget;
                return recyclerView.canScrollVertically(-1);
            } else {
                return mTarget.canScrollVertically(-1);
            }
        }
        return super.canChildScrollUp();
    }

    @Override
    public void setRefreshing(boolean refreshing) {
        super.setRefreshing(refreshing);
        if (!refreshing) {
            setEnabled(true);
        }
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
            final View target = mTarget;
            final float y = ev.getY();
            if (target != null && y < target.getTop()) {
                setEnabled(false);
            }
        }
        return super.onInterceptTouchEvent(ev);
    }

    @Override
    public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) {
        if (mTarget != null && mTarget instanceof RecyclerView) {
            RecyclerView recyclerView = (RecyclerView) mTarget;
            recyclerView.requestDisallowInterceptTouchEvent(disallowIntercept);
        }
        super.requestDisallowInterceptTouchEvent(disallowIntercept);
    }

    @Override
    public void setEnabled(boolean enabled) {
        super.setEnabled(enabled);
        if (!enabled) {
            setRefreshing(false);
        }
    }

    @Override
    public void setOnChildScrollUpCallback(OnChildScrollUpCallback callback) {
        super.setOnChildScrollUpCallback(callback);
        if (callback != null) {
            mTarget = callback.getScrollUpView();
        }
    }
}

<com.example.CustomSwipeRefreshLayout
    android:id="@+id/swipeRefreshLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- Your content here -->

</com.example.CustomSwipeRefreshLayout>