给button添加边框和圆角

button是我们经常用到的控件，我把它的属性罗列一下：

UIButton *Button = [[UIButton alloc] initWithFrame:CGRectMake(100, 200, 120, 50)];
NSString *str = @"已认证";
[Button setTitle:[NSString stringWithFormat:@"%@",str] forState:UIControlStateNormal];
[Button setTitleEdgeInsets:UIEdgeInsetsMake(0, 5, 0, 0)];
[Button setImage:[UIImage imageNamed:@"i_ico_class.png"] forState:UIControlStateNormal];
/* 这样的可以控制边缘插入的位置 可以 让一个按钮的背景里面既有图片也有文字，图片和文字的位置可以随意用此调整 */
// [Button setImageEdgeInsets:str.length>1?UIEdgeInsetsMake(0, 3, 0, 0):UIEdgeInsetsMake(0, 20, 0, -40)];//上、左、下、右
[Button setImageEdgeInsets:UIEdgeInsetsMake(0, 3, 0, 0)];//上、左、下、右

Button.backgroundColor = RGB(87, 205, 66);
Button.clipsToBounds = YES;//裁剪
Button.titleLabel.font = [UIFont systemFontOfSize:18];//字体大小
Button.layer.cornerRadius = 25;//圆角半径
Button.layer.shadowOffset = CGSizeMake(3, 5);
Button.layer.shadowOpacity = 0.8;//阴影的透明度
Button.layer.shadowColor = RGB(87, 205, 66).CGColor;//阴影的颜色
Button.layer.borderColor = RGBA(255, 255, 255, 0.4).CGColor;//边框的颜色
Button.layer.borderWidth = 4;//边框的宽度
[Button addTarget:self action:@selector(weekChooseAction:) forControlEvents:UIControlEventTouchUpInside];//绑定方法
[self.view addSubview:Button];

//实现方法

-(void)weekChooseAction:(id)sender
{
[UIView animateWithDuration:2 animations:^{
self.view.backgroundColor = [UIColor redColor];
}];
}