调整图像大小以适合比例 [英] Resize image to fit proportions

问题描述

在我的应用程序设计中，我有一个正方形空间来存放来自远程服务器的图像.但是，有时图像是横向矩形而不是正方形.

In the design of my app, I have a square space for an image that comes from a remote server. However, occasionally the image is a landscape rectangle instead of a square.

我不想裁剪图像，而是将其缩放到足以适合正方形约束的程度，然后用一些背景色(也许是白色)填充剩余空间.

I don't want to crop the image, but instead scale it down far enough to fit inside the square constraints, then fill in the remaining space with some background color, white maybe.

推荐答案

将 UIImageView 的 contentMode 设置为 UIViewContentModeScaleAspectFit .

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