ObjC to Swift : NSDictionary to Swift Dictionary

Objective-C

NSString * objCString = @"String";
BOOL objCBool = YES;

NSDictionary * dictionary = @{ @"stringKey" : objCString,
                               @"boolKey"   : [NSNumber numberWithBool: objCBool] };

NSString * stringInDictionary = dictionary[@"stringKey"];
BOOL boolInDictionary = [[NSNumber numberWithBool: dictionary[@"boolKey"]] boolValue];

Swift

let swiftString = "String"
let swiftBool = true

dictionary: Dictionary = [ "stringKey" : swiftString,
                           "boolKey"   : swiftBool ]

let stringInDictionary = dictionary["stringKey"] as! String
let boolInDictionary = dictionary["boolKey"] as! Bool