Mac OS开发系列之NSImageView

//初始化NSImageView并设置它的大小
NSImageView *imgView = [[NSImageView alloc]initWithFrame:CGRectMake(self.view.frame.size.width/2-35, 100, 70, 70)];
//给图片赋值和iOS开发是一样的
imgView.image = [NSImage imageNamed:@"1"];

[self.view addSubview:imgView];

//设置圆角
imgView.wantsLayer = YES;
imgView.layer.cornerRadius = 35.0f;
imgView.layer.borderWidth = 2;
imgView.layer.borderColor = [NSColor greenColor].CGColor;
imgView.layer.masksToBounds = YES;