Swift与OC代码转换实例

1.

Objectice-C code:

 1 NSShadow *shadow = [NSShadow new];
 2
 3 [shadow setShadowColor:[UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0]];
 4
 5 [shadow setShadowOffset:CGSizeMake(0, 1)];
 6
 7 NSDictionary *attributes = @{
 8
 9                                 NSForegroundColorAttributeName: [UIColor colorWithRed:220.0/255.0 green:104.0/255.0 blue:1.0/255.0 alpha:1.0],
10
11                                 NSShadowAttributeName: shadow,
12
13                                 NSFontAttributeName: [UIFont fontWithName:@"AmericanTypewriter" size:16.0]
14
15                              };
16
17 [self.navigationItem.rightBarButtonItem setTitleTextAttributes:attributes forState: UIControlStateNormal];
18
19 // Or you can use.
20
21 [[UIBarItem appearance] setTitleTextAttributes:attributes forState: UIControlStateNormal];

Swift Code:

// Bar title text color

let shadow = NSShadow()

shadow.shadowColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)

shadow.shadowOffset = CGSizeMake(0, 1)

let color : UIColor = UIColor(red: 220.0/255.0, green: 104.0/255.0, blue: 1.0/255.0, alpha: 1.0)

let titleFont : UIFont = UIFont(name: "AmericanTypewriter", size: 16.0)!

let attributes = [

                        NSForegroundColorAttributeName : color,

                        NSShadowAttributeName : shadow,

                        NSFontAttributeName : titleFont

                 ]

self.navigationItem.rightBarButtonItem?.setTitleTextAttributes(attributes, forState: UIControlState.Normal)

// Or you can use

UIBarItem.appearance().setTitleTextAttributes(attributes, forState: UIControlState.Normal)