ios开发笔记-7-bug解决

bug解决：

1.

(null): Couldn't codesign /Users/ios/Library/Developer/Xcode/DerivedData/hyq2.0-ghkupheqogsvdpeqhaprewzzqhfb/Build/Products/Debug-iphoneos/hyq2.0.app/Frameworks/libswiftCore.dylib: codesign failed with exit code 1

解决办法：http://www.raywenderlich.com/forums/viewtopic.php?f=45&t=20561

2.

h在iOS中使用icon fontttp://www.cocoachina.com/industry/20131111/7327.html

3.

IQKeyBoardManager
UITextView 没有placeholder
使用IQKeyBoardManager时候，有可能把UITextField的placeHoldder带过来

解决方法：

class contentTextView: UITextView{

var placeholder: String?

}(通过继承设置一模一样的属性)

4.

Xcode 7 crashes while it is creating new file
http://stackoverflow.com/questions/32578494/xcode-7-crashes-while-it-is-creating-new-file