如何管理UIImageView内容模式？ [英] How to manage UIImageView content mode?

问题描述

我有一个具有一些固定矩形的UIImageView。但我的图像尺寸不固定。我想根据UIImageView的rect大小显示图像。无论图像的分辨率是大还是大，它都必须根据UIImageView的大小固定显示。我对使用以下资产很困惑。

I have an UIImageView with some fixed rect size. But my images are not fixed in size. I want to display images according to UIImageView's rect size. Whether image is big or large in resolution it must be in fixed display according to UIImageView's size. I am confused in using below assets.

UIViewContentModeScaleToFill,
UIViewContentModeScaleAspectFit,
UIViewContentModeScaleAspectFill,
UIViewContentModeRedraw

在autoresize掩码中设置什么？
他们的表现如何？

What to set in autoresize mask ? How do they behave ?

推荐答案

请尝试使用此代码，希望它能为您效劳。

Please try this code, Hope it will work for you.

设置 UIImageView contentMode 到 UIViewContentModeScaleAspectFill 如下：

imageView.contentMode = UIViewContentModeScaleAspectFill;

设置UIImageView的autoresizingMask如下：

set autoresizingMask of UIImageView as below :

imageView.autoresizingMask =   
    ( UIViewAutoresizingFlexibleBottomMargin
    | UIViewAutoresizingFlexibleHeight
    | UIViewAutoresizingFlexibleLeftMargin
    | UIViewAutoresizingFlexibleRightMargin
    | UIViewAutoresizingFlexibleTopMargin
    | UIViewAutoresizingFlexibleWidth );

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