iOS layer.borderWidth

Question

UIView *view = [[UIView alloc]initWithFrame:CGRectMake(100,100,100,100)];
view.backgroundColor = [UIColor redColor];
view.layer.borderWidth = 1.0;
view.layer.borderColor = [UIColor blueColor].CGColor;
UIImageView *image = [[UIImageView alloc]initWithFrame:CGRectMake(-8, -10, 20, 20)];
image.image = [UIImage imageNamed:@"sample"];
[view addSubview:image];

圖像在視圖中，但邊界線是透明的……・ ・請給我解決方法。

Answer 1

嘗試使用：

image.clipsToBounds = YES;

Answer 2

 image.contentMode = UIViewContentModeScaleAspectFit;

添加上面的代碼行，問題將得到解決。