在 XCODE 中简单地调整 UIImage 的大小 [英] Simple resizing of UIImage in XCODE

问题描述

有什么方法可以在尽可能少的行中调整 UIImage 的大小?我不介意比例，我只想将图像分辨率设置为 80x60.就这些

Is there any way how to resize UIImage in as few lines as possible? I don't mind of ratio, I just want to set image resolution to 80x60. That's all

推荐答案

这可能有点矫枉过正，但是，您可以简单地获取图像，并以您想要的分辨率创建图形上下文，然后您可以将 tempImage 设置为 UIImageView，覆盖它.

This may be overkill but, you can simply take your image, and create a graphics context at that resolution you want, then you can set the tempImage as the UIImageView, overwriting it.

        UIImage *image = YourImageView.image;
        UIImage *tempImage = nil;
        CGSize targetSize = CGSizeMake(80,60);
        UIGraphicsBeginImageContext(targetSize);

        CGRect thumbnailRect = CGRectMake(0, 0, 0, 0);
        thumbnailRect.origin = CGPointMake(0.0,0.0);
        thumbnailRect.size.width  = targetSize.width;
        thumbnailRect.size.height = targetSize.height;

        [image drawInRect:thumbnailRect];

        tempImage = UIGraphicsGetImageFromCurrentImageContext();

        UIGraphicsEndImageContext();

        YourImageView.image = tempImage;

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