在一个Label上设置多种颜色字体
2015-06-26 16:09 甘雨路 阅读(763) 评论(0) 编辑 收藏 举报 
1 #import "AppDelegate.h"
2
3 @interface AppDelegate ()
4
5 @end
6
7 @implementation AppDelegate
8
9
10 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
11 self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
12
13 // Override point for customization after application launch.
14 self.window.backgroundColor = [UIColor whiteColor];
15
16 UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10, 100, 300, 200)];
17 // 设置多属性字符串
18 NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"Using NSAttributed String"];
19 // 设置蓝色字体，范围(0, 5)，其中空格也算一个占位符
20 [str addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:NSMakeRange(0, 5)];
21 // 设置红色字体，范围(6, 12)，其中空格也算一个占位符
22 [str addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(6, 12)];
23 // 设置红色字体，范围(13, 6)，其中空格也算一个占位符
24 [str addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(13, 6)];
25
26 label.attributedText = str;
27
28 [self.window addSubview:label];
29 [self.window makeKeyAndVisible];
30 return YES;
31 }
32
33 @end
