富文本-控件字符串颜色不一样

1. lable

- (void)test:(NSString *)strStaus content:(NSString *)content
{
    
    NSString *str = [NSString stringWithFormat:@"回复 %@ %@ ",strStaus,content];
    
    NSMutableAttributedString *attrDescribeStr = [[NSMutableAttributedString alloc] initWithString:str];
    
    [attrDescribeStr addAttribute:NSForegroundColorAttributeName
     
                            value:[UIColor blueColor]
     
                            range:[str rangeOfString:strStaus]];

    self.contentLabel.attributedText = attrDescribeStr;
}

转载链接

2. UIButton

- (void)viewDidLoad {
    [super viewDidLoad];
    NSString * aStr = @"交流群246807516";
    NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@",aStr]];
    [str addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Arial-BoldItalicMT" size:16.0] range:NSMakeRange(0,3)];
    [str addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor]range:NSMakeRange(0,3)];
    
    UIButton * butn = [UIButton buttonWithType:UIButtonTypeCustom];
    butn.backgroundColor = [UIColor orangeColor];
    butn.frame = CGRectMake(100, 200, 200, 30);
    [butn setAttributedTitle:str forState:UIControlStateNormal];
    [butn addTarget:self action:@selector(click) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:butn];
}