我已经创建了UIButton方法。现在我想为动作按钮设置角落半径。我如何添加这个？

问题描述：

此代码不正确。我如何重写这段代码？或以其他方式解决这个问题。我已经创建了UIButton方法。现在我想为动作按钮设置角落半径。我如何添加这个？

- (IBAction)actionButton:(id)sender { 
} 
actionButton.layer.cornerRadius = 4.0f;

//my original code 
- (void)viewDidLoad { 
[super viewDidLoad]; 
// Do any additional setup after loading the view, typically from a nib. 
backGroundImage.image = [UIImage imageNamed:@"3.png"]; 
    blurAlertAction.layer.cornerRadius = 4.0f; 
} 

- (void)didReceiveMemoryWarning { 
[super didReceiveMemoryWarning]; 
// Dispose of any resources that can be recreated. 
} 


- (IBAction)blurAlertAction:(UIButton*)sender { 

sender.layer.cornerRadius = 4.0f; 
BlurViewAlert * addView = [BlurViewAlert new]; 
[addView bluredView]; 
[addView setBlurEffectStyle:UIBlurEffectStyleDark]; 
[addView setTitle:@"Set your goal"]; 
[addView setPlaceholder:@"$"]; 
addView.onSubmit = ^BOOL(NSString *value){ 
    NSLog(@"%@",value); 
    return YES; 
}; 

[addView show]; 
}

答

设置

目标C

- (IBAction)actionButton:(UIButton*)sender { 
    sender.layer.cornerRadius = 4; 

    // the above line is not working try below line 
    actionButton.layer.cornerRadius = 4.0f; 
}

夫特

func actionButton(sender:UIButton!) 
{ 
sender.layer.cornerRadius = 4 

// the above line is not working try below line 
    actionButton.layer.cornerRadius = 4 
println("Button is working") 
}

如果你想在外面 UIButton行动做到这一点

做这样

override func viewDidLoad() { 

super.viewDidLoad() 

    // then don't write here 
    actionButton.layer.cornerRadius = 4 

}

选择

- (void)viewDidLoad { 
[super viewDidLoad]; 
// Do any additional setup after loading the view, typically from a nib. 
backGroundImage.image = [UIImage imageNamed:@"3.png"]; 

} 




- (IBAction)blurAlertAction:(UIButton*)sender { 

sender.layer.cornerRadius = 4.0f; 

    }

检查更新的答案 –

谢谢。这是行得通的，但是当我点击这个按钮时，只会发生。 –

哦，简单的，然后删除视图做负载线和添加行中的按钮操作 –

答

定义这个IBAction为在哪里？如果您尝试为按钮设置角落半径，那么您可能需要将该发件人转换为UIButton *，然后设置该UIButton实例层的cornerRadius。

虽然我不会推荐这个解决方案。如果你可以发布你正在尝试解决的所有问题，我将能够更好地回答它。

答

通过在下面的方法，你的按钮：

目标C：

-(void)addRoundedCorner:(UIButton*)viewToRound Radius:(CGFloat)radius{ 
    CALayer* layer = viewToRound.layer; 
    layer.cornerRadius=radius; 
    layer.masksToBounds = true; 

}

这样称呼它：

[self addRoundedCorner:actionBtn Radius:4];

斯威夫特：

func addRoundedCorner(viewToRound:UIButton, radius:CGFloat) { 

    var layer:CALayer = viewToRound.layer; 
    layer.cornerRadius=radius 
    layer.masksToBounds = true 
} //F.E.

我已经创建了UIButton方法。现在我想为动作按钮设置角落半径。我如何添加这个？

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