UIButton 设置圆角 边框颜色 点击回调方法

UIButton *signBtn = [UIButton buttonWithType:UIButtonTypeCustom];
signBtn.frame = CGRectMake(, , , );
[signBtn.layer setMasksToBounds:YES];
[signBtn.layer setCornerRadius:10.0]; //设置矩形四个圆角半径
[signBtn.layer setBorderWidth:1.0]; //边框宽度
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGColorRef colorref = CGColorCreate(colorSpace,(CGFloat[]){ , , ,  }); 

[signBtn.layer setBorderColor:colorref];//边框颜色

[signBtn setTitle:@"还  原" forState:UIControlStateNormal];//button title

[signBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];//title color

[signBtn addTarget:self action:@selector(buttonDonwRecover:) forControlEvents:UIControlEventTouchUpInside];//button 点击回调方法

signBtn.backgroundColor = [UIColor whiteColor];

- (void)buttonDonwRecover:(id)sender
{
    UIButton *btn = (UIButton *)sender;
}