丹青不及你眉眼

Swift5.0

1

## Checklist - [x] New Extension - [x] New Test - [x] Changed more than one extension, but all changes are related - [ ] Trivial change (doesn't require changelog)

` ` When I use the 'renderSectionHeader' with PullList,It doesn't work. There is noting,The window is empty.

When I use it with Swift4.0,it crashed with this message:

1

`2017-07-04 14:17:52.193738+0800 Reflect[4302:1322488] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key name.' *** First throw call stack:...