Iphone 使用cornerradius IOS使其圆化时出现问题相关UIimageView

我在XIB文件中查看了UIView。在这个视图中有一个UIImageView和一个相同大小的按钮。我想让那个视图是圆形的，为此我使用了cornerRadius。视图的大小是92*92，这就是为什么我选择拐角半径为46的原因。下面是我的代码，我在评论代码本身的问题

- (void)viewDidLoad
{   
    [super viewDidLoad];
    _roundView.layer.cornerRadius = 46;
    flag=0;
    selectImage.layer.cornerRadius = 46;
    NSLog(@"%f",_roundView.frame.size.height);
    NSLog(@"%f",_roundView.frame.size.width);

    imageFrame = selectImage.frame;
    // when first view appear its perfectly round 
    // this is how i pick image from gallery 


    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo: (NSDictionary *)info {
    self.lastChosenMediaType = [info objectForKey:UIImagePickerControllerMediaType];
    if ([lastChosenMediaType isEqual:(NSString *)kUTTypeImage]) {
        UIImage *chosenImage = [info objectForKey:UIImagePickerControllerEditedImage];
        UIImage *shrunkenImage = shrinkImage(chosenImage, imageFrame.size);
        self.imagee = shrunkenImage;

        NSLog(@"%f",_roundView.frame.size.height); nslog = 92
        NSLog(@"%f",_roundView.frame.size.width);   nslog = 92
        NSLog(@"%f",_roundView.layer.cornerRadius); nslog = 46

        NSLog(@"%f",selectImage.frame.size.height);   nslog = 92
        NSLog(@"%f",selectImage.frame.size.width);   nslog = 92
        NSLog(@"%f",selectImage.layer.cornerRadius); nslog = 46

        selectImage.image = imagee;
        selectImage.layer.cornerRadius = 46;

        // now the issue is Image gets selected but it become rectangular 92 * 92 
    }

    [picker dismissModalViewControllerAnimated:YES];
}

试着用这个

_roundView.layer.masksToBounds = YES; 

请尝试以下代码：

_roundView.layer.cornerRadius = _roundView.frame.size.height / 2;
_roundView.layer.masksToBounds = YES;

必须绑定掩码。。 此外，如果使用公式而不是直接值，代码将变得更加灵活。 我希望它能帮助你！！祝你好运

试试下面的代码

roundView.layer.cornerRadius = 46;
_roundView.layer.masksToBounds = YES;


flag=0;



selectImage.layer.cornerRadius = 46;
selectImage.layer.masksToBounds = YES;



imageFrame = selectImage.frame;