2017.01.02

1. Q: App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.
   A: You have to set the NSAllowsArbitraryLoads key to YES under NSAppTransportSecurity dictionary in your .plist file.

2017.01.05

1. pod相关
   http://stackoverflow.com/questions/20755044/how-to-install-cocoa-pods

2017.01.08

1. QRCodeSanner (swift 3.0)
   https://github.com/yannickl/QRCodeReader.swift

2. Swift 3.0 tutorials
   https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/GuidedTour.html

3. How to use CocoaPods
   https://www.raywenderlich.com/97014

2017.01.09

1. Swift Navigation Bar Image Title
   http://stackoverflow.com/questions/24803178/swift-navigation-bar-image-title

2. How to add multiple UIBarButtonItems on right side of Navigation Bar?
   http://stackoverflow.com/questions/30341263/how-to-add-multiple-uibarbuttonitems-on-right-side-of-navigation-bar

3. selector swift 3.0
   #selector(buttonTapped(_:))

4. add badge button to bar buttonitem
   http://www.stefanovettor.com/2016/04/30/adding-badge-uibarbuttonitem/

2017.01.10

1. Can't set titleView in the center of navigation bar
   http://stackoverflow.com/questions/28121388/cant-set-titleview-in-the-center-of-navigation-bar-because-back-button

2017.01.11