将图像裁剪为ImageView的大小 [英] Crop an Image to the size of an ImageView

问题描述

我有一个已经调整为圆形的ImageView，它包含一个内部图像，已经适合填充圆圈。唯一的问题是当我在我的应用程序的另一部分打开图像时，它不是一个圆形而是它的原始形式。这是因为我没有调整图像大小，而是调整了ImageView。所以我的问题是如何裁剪图像与它看起来一样（圆圈）？或者，如果有更好的解决方案，比如调整图像大小而不是View，我很乐意听到它！

I have an ImageView which is already resized to be a circle, and it contains an image inside, which is already fitted to fill the circle. The only problem is when I open the image in another part of my app it is not a circle but rather in its original form. This is because I didn't resize the image, but rather the ImageView. So my question is how can I crop the image to be the same as it looks (a circle)? Or, if there's a better solution to this like resizing the image rather than the View I would love to hear it!

以下是我用来调整ImageView大小的代码：

Here is the code I'm using to resize the ImageView:

self.profilePic.layer.cornerRadius = (self.profilePic.frame.size.height+20)/ 2;
self.profilePic.layer.masksToBounds = YES;
self.profilePic.clipsToBounds = YES;

推荐答案

这个怎么样？

self.profilePic.contentMode = UIViewContentModeScaleAspectFill;

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