如何在iOS中调整图像大小？ [英] How to resize an image in iOS?

问题描述

您好我想将图片发送到网络服务。但我想将用户选择的任何图像调整为75 x 75并将其发送到Web服务。如何将此图像调整为75 x 75

hi I want to send an image to a web service. But I want to resize user selected any image into 75 x 75 and send it to web service. How can I resize this image into 75 x 75

谢谢

推荐答案

尝试实现以下代码。它可能对您有所帮助：

Try to implement the code below. It may be helpful for you:

    CGRect rect = CGRectMake(0,0,75,75);
    UIGraphicsBeginImageContext( rect.size );
    [yourCurrentOriginalImage drawInRect:rect];
    UIImage *picture1 = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    NSData *imageData = UIImagePNGRepresentation(picture1);
    UIImage *img=[UIImage imageWithData:imageData];

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