Label设置多种字体、颜色的示例代码如下:
NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"Using NSAttributed String,try your best to test attributed string text"];
[str addAttribute:NSForegroundColorAttributeName
value:[UIColor blueColor]
range:NSMakeRange(0,5)];
[str addAttribute:NSForegroundColorAttributeName
value:[UIColor redColor]
range:NSMakeRange(6,12)];
[str addAttribute:NSForegroundColorAttributeName
value:[UIColor greenColor]
range:NSMakeRange(19,6)];
[str addAttribute:NSFontAttributeName
value:[UIFont fontWithName:@"Arial" size:30.0]
range:NSMakeRange(0, 5)];
[str addAttribute:NSFontAttributeName
value:[UIFont fontWithName:@"Arial" size:30.0]
range:NSMakeRange(6, 12)];
[str addAttribute:NSFontAttributeName
value:[UIFont fontWithName:@"Arial" size:30.0]
range:NSMakeRange(19, 6)];
UILabel *attrLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 150, 320 - 40, 90)];
attrLabel.attributedText = str;
attrLabel.numberOfLines = 0;
说明
NSMutableAttributedString类可以添加各种样式,常用的设置key有:
- NSForegroundColorAttributeName 设置前景色,也就是文本颜色
- NSFontAttributeName 设置字体
- NSBackgroundColorAttributeName 设置背景色
Label支持换行符
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(20, 450, 320 - 20, 45)];
[label setTextColor:[UIColorblackColor]];
[label setText:@"图片不会被拉伸。\n设置按钮上的图片"];
[label setFont:[UIFont boldSystemFontOfSize:15]];
label.textAlignment = NSTextAlignmentLeft;
label.numberOfLines = 0;
[self.view addSubview:label];