UIView设置阴影

//UIView设置阴影
[[viewTest layer] setShadowOffset:CGSizeMake(1, 1)];
[[viewTest layer] setShadowRadius:5];
[[viewTest layer] setShadowOpacity:1];
[[viewTest layer] setShadowColor:[UIColor blackColor].CGColor];
//UIView设置边框
[[viewTest layer] setCornerRadius:5];
[[viewTest layer] setBorderWidth:2];
[[viewTest layer] setBorderColor:[UIColor whiteColor].CGColor];
[self.view addSubview:viewTest];