保存恢复ListView当前位置

ListView.java

 private void saveCurrentPosition() {
        if (mListView != null) {
            int position = mListView.getFirstVisiblePosition();
            View v = mListView.getChildAt(0);
            int top = (v == null) ? 0 : v.getTop();
            //保存position和top
        }
    }
    
    private void restorePosition() {
        if (mFolder != null && mListView != null) {
            int position = 0;//取出保存的数据
            int top = 0;//取出保存的数据
            mListView.setSelectionFromTop(position, top);
        }
    }