Suspicious method call; should probably call "draw" rather than "onDraw"

今天在写一个文本阅读器时，出现以下错误：

 Suspicious method call; should probably call "draw" rather than "onDraw"

怎么看代码都没有错误。后来想是不是方法名onDraw与系统的什么方法冲突了吗？于是改了onDraw的方法名，就正确了。

pagefactory.Change_onDraw(mCurPageCanvas);
//pagefactory.onDraw(mCurPageCanvas);