iOS view的圆角和阴影并存

 UIView *v=[[UIView alloc]initWithFrame:CGRectMake(10, 10, 100, 100)];
    v.backgroundColor=[UIColor yellowColor];
    //v.layer.masksToBounds=YES;这行去掉
    v.layer.cornerRadius=10;
    v.layer.shadowColor=[UIColor redColor].CGColor;
    v.layer.shadowOffset=CGSizeMake(10, 10);
    v.layer.shadowOpacity=0.5;
    v.layer.shadowRadius=5;

    [self.view addSubview:v];

效果如下