对于经常使用本地UI开发App的Corona用户，有个好消息，那就是现在已经不需要编译到真机来测试本地UI了，直接在Mac模拟器上就可以直接开测，当然只在每日构建639以后版本开始支持这个功能。
目前支持在Mac模拟器下测试的本地UI包括：
- TextField – see the Text Fields docs.
- TextBox – see the Text Boxes docs
- Video Player – see the media.playVideo() docs
- iSight Photo Capture (e.g. Webcam) – see the media.show() docs
- WebView – see the Web Popup docs. This one’s quite unstable because of technical issues with Apple’s own WebView UI component, so this one might not behave exactly as it does on your mobile device (but is usable nonetheless).
