How do Android control auto-wrapping for TextView?

When text reach the end of the TextView, the next text will wrap to the new line.

How do Android implement/control this(So that we can override)?

I need to override something for my app, which doesn't do auto-wrapping correctly(known issue on Android 3.0+) with ImageSpan. But I don't know where to start.

I asked this question hoping to find a work-around fo开发者_如何学Pythonr the issue, but no answer yet.

You could extend TextView and override the paint() method.