具有圆angular和阴影的UIBarButtonItem

我想在UIBarButtonItem上有圆angular和阴影。

 UIButton *useButton = [UIButton buttonWithType:UIButtonTypeCustom]; 

然后，我尝试设置阴影和圆angular：

 useButton.layer.masksToBounds = NO; useButton.layer.cornerRadius = 4; useButton.layer.shadowOffset = CGSizeMake(0, 1.5); useButton.layer.shadowRadius = 0.5; useButton.layer.shadowOpacity = 1.0; useButton.layer.shadowColor = [BSTCMColorUtility colorFromHexString:@"#AFAFAF"].CGColor; 

最后我做了UIBarButtonItem ：

 UIBarButtonItem *useItem = [[UIBarButtonItem alloc] initWithCustomView:useButton]; [self.navigationItem setRightBarButtonItems:@[useItem]]; 

我没有得到圆angular，但我确实得到了阴影。

如果我添加：

 useButton.clipsToBounds = YES; 

和/或：

 useButton.layer.masksToBounds = YES; 

我得到圆angular，但没有阴影。 所以我想我会尝试添加一个子图层。

 CALayer *useButtonShadowLayer = [CALayer new]; useButtonShadowLayer.frame = useButton.frame; useButtonShadowLayer.cornerRadius = 4; useButtonShadowLayer.backgroundColor = [UIColor whiteColor].CGColor; useButtonShadowLayer.shadowOffset = CGSizeMake(0, 1.5); useButtonShadowLayer.shadowRadius = 0.5; useButtonShadowLayer.shadowOpacity = 1.0; useButtonShadowLayer.shadowColor = [BSTCMColorUtility colorFromHexString:@"#AFAFAF"].CGColor; useButton.layer.cornerRadius = 4; useButton.layer.masksToBounds = YES; UIView *parent = useButton.superview; [parent.layer insertSublayer:useButtonShadowLayer below:useButton.layer]; 

它似乎没有工作，我看不到阴影。 我得到圆angular寿。

在UIBarButtonItem / UIButton上不可能有圆angular和阴影？

Answer 1

试试这个更新的代码：

 UIButton *useButton = [UIButton buttonWithType:UIButtonTypeCustom]; useButton.frame = CGRectMake(100, 430, 100, 40); useButton.layer.masksToBounds = NO; useButton.layer.cornerRadius = 10; useButton.layer.shadowOffset = CGSizeMake(1.5, 1.5); useButton.layer.shadowRadius = 0.5; useButton.layer.shadowOpacity = 1.0; useButton.layer.shadowColor = [UIColor blackColor].CGColor; useButton.backgroundColor = [UIColor redColor]; UIBarButtonItem *useItem = [[UIBarButtonItem alloc] initWithCustomView:useButton]; [self.navigationItem setRightBarButtonItems:@[useItem]]; 

Answer 2

  UIButton *useButton = [UIButton buttonWithType:UIButtonTypeCustom]; useButton.frame = CGRectMake(0, 0, 60, 30); useButton.backgroundColor = [UIColor redColor]; useButton.layer.masksToBounds = NO; useButton.layer.cornerRadius = 4; useButton.layer.shadowOffset = CGSizeMake(0, 1.5); useButton.layer.shadowRadius = 5; useButton.layer.shadowOpacity = 1.0; // useButton.layer.shadowColor = [UIColor blackColor].CGColor; useButton.layer.borderColor = [UIColor blackColor].CGColor; [self.view addSubview:useButton]; UIBarButtonItem *useItem = [[UIBarButtonItem alloc] initWithCustomView:useButton]; [self.navigationItem setRightBarButtonItems:@[useItem]]; 

Answer 3

 btnname.layer.cornerRadius = 8.0; btnname.layer.shadowOffset = CGSizeMake(2, 2); 

Answer 4

 btn.layer.cornerRadius = 2.0 ; 

Answer 5

 buttonName.layer.cornerRadius = 2; buttonName.layer.borderWidth = 1; buttonName.layer.borderColor = [UIColor blacColor].CGColor;