Question

我正在尝试接收网址图片并将图片发布为base64格式。

我这样解决但我找不到任何解决方案。

我的.h文件

@interface urlconnection : NSObject
{
    id delegate;
    NSMutableData *receivedData;
    NSURL *url;
    // NSData * imageData;
    IBOutlet NSImageView * myimages; 
        //and also trying UIImageView also atleast i didn't receive the image  
}

@property (nonatomic,retain) NSMutableData *receivedData;
@property (retain) id delegate;

- (void)post: (NSString *)urlString;

@end

我的实施文件是

- (void)post: (NSString *)urlString {
        myimages.image = [NSImageView imageWithData:[NSData dataWithContentsOfURL:
            [NSURL URLWithString:@"http://www.iphonedevelopers.com/files/2010/03/iphone-sdk2.jpg" ]]];
        NSLog(@"image shown successfully");

        NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:
            [NSURL URLWithString:@"http://www.iphonedevelopers.com/files/2010/03/iphone-sdk2.jpg"]];  

    [request setHTTPMethod:@"POST"];
    [request setValue:@"image/" 
        forHTTPHeaderField:@"Content-type"];
    [request setValue:[NSString stringWithFormat:@"%d", imageData length]] 
        forHTTPHeaderField:@"Content-length"];
    [request setHTTPBody:imageData];
    [[NSURLConnection alloc] initWithRequest:request delegate:self];

请朋友帮助我，因为我是新概念

请建议这个概念的最佳教程......

Answer 1

要发布图片，您需要一个能够在服务器端接收图片的正确服务器网络服务。

试试此链接可以帮助您upload your image from application

我认为使用异步文件下载图像将是下载图像的正确方法，因为您的代码将冻结应用程序，直到您的图像下载。

您可以试试这个link.可能会有更好的下载示例。

Answer 2

myimages.image = [UIImage imageWithData：[NSData dataWithContentsOfURL：[NSURL

    URLWithString:@"http://www.iphonedevelopers.com/files/2010/03/iphone-sdk2.jpg" ]]];

Answer 3

从网址获取图片：

  yourImageView.image= [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:stringContainningURL]]];

如何从网址接收图像以及如何发布？

3 个答案: