ASIHTTP:上传UIImage? [英] ASIHTTP: Upload UIImage?
本文介绍了ASIHTTP:上传UIImage?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
有人可以告诉我如何在Objective-c中使用ASIHTTPRequest对象上传UIImage对象吗?我需要将其转换为NSData对象吗?
Can someone please tell me how I can use an ASIHTTPRequest object in Objective-c to upload an UIImage object? Do I need to convert it to an NSData object?
(这是一个头像上传网址)
(This is for an avatar upload url)
E.g.
UIImage *toUpload = [UIImage imageNamed:@"test.jpg"]
URL: "http://www.example.com/api/users/avatar/upload?access_token=12345"
RequestType: PUT
推荐答案
<下面是一个使用ASIFormRequest的例子,它也会尝试将图像压缩到给定的最大尺寸
Heres an example using ASIFormRequest that will also attempt to compress the image to given maximum size
//Compress the image
CGFloat compression = 0.9f;
CGFloat maxCompression = 0.1f;
int maxFileSize = 250*1024;
NSData *imageData = UIImageJPEGRepresentation(yourImage, compression);
while ([imageData length] > maxFileSize && compression > maxCompression)
{
compression -= 0.1;
imageData = UIImageJPEGRepresentation(yourImage, compression);
}
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:whereYourServerEndPointIs.com]];
[request addData:imageData withFileName:@"someFileName.jpeg" andContentType:@"image/jpeg" forKey:@"uploadedImage"];
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