如何将图像添加到UIView？这是我到目前为止所尝试的：
- UIView *imageHolder = [[UIView alloc] initWithFrame:CGRectMake(40,200,280,192)];
- UIImage *image = [UIImage imageNamed:@"bloodymoon.jpg"];
- [imageHolder addSubview:image]; // Error: Incompatible pointer types
- [self.mainView addSubview:imageHolder];
解决方法
试试UIImageView：
- UIImageView *imageHolder = [[UIImageView alloc] initWithFrame:CGRectMake(40,192)];
- UIImage *image = [UIImage imageNamed:@"bloodymoon.jpg"];
- imageHolder.image = image;
- // optional:
- // [imageHolder sizeToFit];
- [self.mainView addSubview:imageHolder];
