iOS 创建一个UIImageView
示例
要以UIImageView编程方式创建，您所需要做的就是创建以下实例UIImageView：
//Swift let imageView = UIImageView() //Objective-C UIImageView *imageView = [[UIImageView alloc] init];
您可以设置的大小和位置UIImageView有CGRect：
//Swift imageView.frame = CGRect(x: 0, y: 0, width: 200, height: 200) //Objective-C imageView.frame = CGRectMake(0,0,200,200);
或者，您可以在初始化期间设置大小：
//Swift UIImageView(frame: CGRect(x: 0, y: 0, width: 200, height: 200)) //Objective-C UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0,200,200); //为UIImageView定义框架的另一种方法 UIImageView *imageView = [[UIImageView alloc] init]; CGRect imageViewFrame = imageView.frame; imageViewFrame.size.width = 200; imageViewFrame.size.height = 200; imageViewFrame.origin.x = 0; imageViewFrame.origin.y = 0; imageView.frame = imageViewFrame;
注意：必须导入UIKit才能使用UIImageView。