如何在iOS上爲超級視圖製作清晰顏色8

Question

請幫助。如何使在iOS 8模式的看法清晰的顏色，寫在iOS 7，

self.view.superview.backgroundColor = [UIColor clearColor];

工作，但不能在iOS 8.變得清晰，但不能完全

Answer 1

嘗試改變這樣的阿爾法值： -

[[UIColor clearColor] colorWithAlphaComponent:0.6]; 

Answer 2

如果你設置主UIViewController視圖的背景色，你需要se前TUP是：

- (void)setupModalPresentationStyle 
{ 
    self.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; 
    if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"8.0")) { 
     self.modalPresentationStyle = UIModalPresentationOverFullScreen; 
    } 
} 

- (void)awakeFromNib 
{ 
    [super awakeFromNib]; 
    [self setupModalPresentationStyle]; 
} 

當你提出這個UIViewController中，你需要設置當前呈現的UIViewController：

- (void)doneButtonTap:(id)sender { 
    self.modalPresentationStyle = UIModalPresentationCurrentContext; 
    [self presentViewController:detailsViewController animated:YES completion:nil]; 
}