如何使UIImageView适合缩放图像
[英]How to make UIImageView fit scaled image
问题描述
I have a header view with a logo on the left which I want to be both left aligned and "Aspect Fit" scaled such that the image is as tall as possible in the available area. 
我有一个标头视图，在该标头视图的左侧有一个徽标，我想同时将其左对齐和“纵横比匹配”，以使图像在可用区域中尽可能高。 If I set the mode to "Left" then it does left align but the small image does not scale up. 如果将模式设置为“左”，则它会左对齐，但小图像不会放大。 If I set the mode to "Aspect Fit" then it scales up perfectly, but it is centered in the imageview with padding on the sides. 如果将模式设置为“宽高比”，则它会完美缩放，但会在imageview中居中，并在侧面填充。 I have tried adding an inequality for the width in autolayout but it has no effect. 我尝试为自动布局中的宽度添加不等式，但是它没有任何效果。 If I increase the content hugging priority of the imageview, then the image is displayed at its smallest size with no scaling up. 如果增加内容包含imageview的优先级，那么图像将以最小尺寸显示，并且不会放大。
How can I have the image scaled up and also remove the padding around the image? 如何放大图像并去除图像周围的填充物？
Here is my test layout: 这是我的测试布局：
2 个解决方案
解决方案1
2 2016-09-20 01:39:27
将模式设置为“宽高比填充”，然后重试。
解决方案2
0 2017-12-28 09:42:10
将模式设置为Aspect Fill然后将UIImageView调整为图像大小。
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