如果使用自定义子类替换默认视图，则cornerRadius不起作用

Question

Following setup:

i have a popupViewController that has a custom UIView subclass as its view, done in loadView

- (void)loadView
{
    CGRect startingPopupSize = CGRectMake(0.0f, 0.0f, 300.0f, 160.0f);
    _popupView = [[MoviePopupView alloc] initWithFrame:startingPopupSize];
    self.view = _popupView;
}

in this UIView Subclass i have the following code in it's init method

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {

        // Initialization code
        self.layer.masksToBounds = YES;
        self.layer.opaque = NO;
        self.clipsToBounds = YES;
        self.backgroundColor = [UIColor whiteColor];
        self.layer.borderWidth = 1.0f;
        self.layer.cornerRadius = 10.0f;
    }
    return self;
}

the problem is, the cornerRadius does not work for this view, but the border gets drawn, see here:

if i don't replace this view with the default uiview of the uiviewcontroller and instead add it as a subview, the cornerRadius works just fine (i want to replace it for several reasons).

any ideas why this is not working?

---

Edit:

if i just move the layers masksToBounds = YES property from the initWithFrame Method to the drawRect method it works. moving it to its viewcontrollers viewDidLoad doesn't.

- (void)drawRect:(CGRect)rect
{
    // Drawing code
    self.layer.masksToBounds = YES;

}

any ideas why this works? i think it is not the right place to set this property here.

Answer 1

You should make two views:

• background view
• text view

For background view set color you want for your text background. For text view set background color as clear color.