绘制过程中获取数据的数组大小不符合

[pokedo0]

绘制过程中获取数据的数组大小不符合

[pokedo0]

Process: com.example.delitto.myapplication, PID: 3227
java.lang.IndexOutOfBoundsException: Index: 24, Size: 0
at java.util.ArrayList.get(ArrayList.java:411)
at com.example.delitto.myapplication.decoration.TitleItemDecoration.onDraw(TitleItemDecoration.java:62)
at android.support.v7.widget.RecyclerView.onDraw(RecyclerView.java:3722)

代码处:
if (null != mDatas.get(position).getDate() && !mDatas.get(position).getDate().equals(mDatas.get(position - 1).getDate())) {
//不为空 且跟前一个tag不一样了，说明是新的分类，也要title
drawTitleArea(c, left, right, child, params, position);
} else {
//none
}

[mcxtzhang]

ItemDecoration的移步：https://github.com/mcxtzhang/SuspensionIndexBar