SwipeBackLayout.java 文件源码

/**
 * Find out the scrollable child view
 * 这里添加了常用的一些可滑动类，特殊类需要添加
 *
 * @param target targetView
 */
private void findScrollView(ViewGroup target) {
    final int count = target.getChildCount();
    if (count > 0) {
        for (int i = 0; i < count; i++) {
            final View child = target.getChildAt(i);
            if (child instanceof AbsListView
                    || isInstanceOfClass(child, ScrollView.class.getName())
                    || isInstanceOfClass(child, NestedScrollView.class.getName())
                    || isInstanceOfClass(child, RecyclerView.class.getName())
                    || child instanceof HorizontalScrollView
                    || child instanceof ViewPager
                    || child instanceof WebView) {
                mScrollChild = child;
                break;
            } else if (child instanceof ViewGroup) {
                findScrollView((ViewGroup) child);
            }
        }
    }
    if (mScrollChild == null) mScrollChild = target;
}