将UIView的表示保存到文件中 [英] Save UIView's representation to file

问题描述

将UIView表示保存到文件的最简单方法是什么？

What is the easiest way to save UIView's representation to file?

我的解决方案是，

 UIGraphicsBeginImageContext(someView.frame.size);
 [someView drawRect:someView.frame];
 UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
 UIGraphicsEndImageContext();

 NSString* pathToCreate = @"sample.png";

 NSData *imageData = [NSData dataWithData:UIImagePNGRepresentation(image)];
 [imageData writeToFile:pathToCreate atomically:YES];

但这似乎很棘手，我认为必须有更有效的方法来做到这一点。

but it seems tricky, and I think there must be more efficient way to do this.

推荐答案

你也可以使用这样的图层：

You can also use the layer like this:

UIGraphicsBeginImageContext(someView.bounds.size);
[someView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

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