Settings bundle values returning nil

Question

I added a Settings bundle to my app and in Xcode it appears in the root of my project tree view.

The Root.plist file looks like this:

&l         


        

Answer 1

Apparently the cause is that if my settings in the plist have defaults defined and the user has not explicitly set a value, then the value displayed in the Settings app will be the defaults from the plist file, however the NSUserDefaults API will still return nil.

Unfortunately this means that if the default value is meaningful (such as a default web-service address URI: "http://www.example.com") it must exist twice in my project: as a default in the plist and in my program code:

Root.plist:

  
      Key          mySettingKey
      Title        Some address
      Type         PSTextFieldSpecifier
      DefaultValue http://www.example.com
      IsSecure     
      KeyboardType Alphabet
  

Program.swift:

let ud = NSUserDefaults.standardUserDefaults()
ud.synchronize()

var mySettingValue = ud.stringForKey("mySettingKey")
if mySettingValue == nil {
    mySettingValue = "http://www.example.com"
}

That's surprising.