UILabel的Corner Radius属性在iOS 7.1中不起作用

Question

I am setting the cornerRadius property for UILabel . Its working fine all version of iOS < 7.1 . Following code i have used,

UILabel *originaltagLbl = [[UILabel alloc]initWithFrame:CGRectMake(startX, startY, 100,30)];    
[originaltagLbl setFont:[UIFont fontWithName:@"MuseoSans-500" size:15]];
[originaltagLbl setTextAlignment:NSTextAlignmentCenter];
[originaltagLbl setTextColor:UIColorFromRGB(0xffffff)];
originaltagLbl.backgroundColor = [UIColor redColor];
originaltagLbl.layer.cornerRadius = 5;
originaltagLbl.layer.borderColor = [UIColor redColor].CGColor;
originaltagLbl.layer.borderWidth = 1;
[scrollView addSubview:originaltagLbl];

if i use this, just simply displaying the label as rectanglular box, So how to set the corner radius of UILabel in iOS 7.1

Answer 1

Add the next line to your code:

originaltagLbl.layer.masksToBounds = YES;

For information see this SO answer, or read documentation .

Answer 2

Swift 3/4/5

    yourlabel.layer.cornerRadius = 8 //your desire radius
    yourlabel.layer.masksToBounds = true

Answer 3

尝试将UILabel的clipsToBounds属性设置为YES

Answer 4

It's true that clipsToBounds works in 7.1, but the problem is in situations where you're scrolling/animating it's really slow and makes everything laggy.

Setting the background color on the layer instead of the uiview is all that is needed.

See: UILabel layer cornerRadius negatively impacting performance

Answer 5

You can use below code,

[[myLabel layer] setCornerRadius:5.0f];
[[myLabel layer] setMasksToBounds:YES];

thanks,

Answer 6

Swift 2 solution :

 @IBOutlet weak var your_label: UILabel! your_label.layer.cornerRadius = 5 your_label.layer.masksToBounds = true