AttributedString

AttributedString的初始化

通常初始化AttributedString的方式有两种：

NSString *str = @"Hello, the Word!";
NSMutableAttributedString *attribute = [[NSMutableAttributedString alloc] initWithString: str];

UILabel *textLabel1 = [[UILabel alloc] initWithFrame:CGRectMake(0, 64, 300, 50)];
textLabel1.numberOfLines = 0;
textLabel1.textAlignment = NSTextAlignmentLeft;
[self.view addSubview:textLabel1];

NSString *str = @"textLabel1: Hello, the Word!";
NSMutableAttributedString *attribute = [[NSMutableAttributedString alloc] initWithString:str];
[attribute addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"zapfino" size:15.0] range:NSMakeRange(0, str.length)];
[attribute addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:NSMakeRange(12, 4)];
[attribute addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(16, 5)];
textLabel1.attributedText = attribute;