如果项目中有用到IQKeyboardManager,第三方库, 再用作者的库,UITextField成为第一响应都后, UITextField可能会被键盘挡住. IQKeyboardManager没有起到作用. <img width="1010" alt="pasted graphic 1" src="https://user-images.githubusercontent.com/16704305/49641346-dbfb3f00-fa4a-11e8-8b3c-009df8407626.png"> <img width="1002" alt="pasted graphic 2" src="https://user-images.githubusercontent.com/16704305/49641369-eae1f180-fa4a-11e8-968c-4e14c72b651e.png">