共享扩展不上传全尺寸图像

Question

我正在为我的 iOS 应用程序开发共享扩展。我真的做了所有的事情，但问题是我的代码只适用于小图像，但是当我上传从设备相机拍摄的图像时，上传失败，只有文本被上传。

- (void)performUploadWith:(NSDictionary *)parameters imageFile:(UIImage *)image{

NSString *boundary = @"SportuondoFormBoundary";


//    NSURLSessionConfiguration *configuration= [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:configurationName];

//    NSURLSession *session=[NSURLSession sessionWithConfiguration:configuration delegate:self delegateQueue:nil];
//    NSMutableURLRequest *request;//[NSURLRequest pho]

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
configuration.HTTPAdditionalHeaders = @{
                                        @"api-key"       : @"55e76dc4bbae25b066cb",
                                        @"Accept"        : @"application/json",
                                        @"Content-Type"  : [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary]
                                        };

NSURLSession *session=[NSURLSession sessionWithConfiguration:configuration delegate:self delegateQueue:nil];


NSMutableData *body = [NSMutableData data];


for (NSString *key in parameters)
{
    [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", key] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithFormat:@"%@\r\n", [parameters objectForKey:key]] dataUsingEncoding:NSUTF8StringEncoding]];

}

NSData *imageData = UIImageJPEGRepresentation(image, 0.8);
NSLog(@"imageDATE, %@", imageData);
if (imageData)
{
    [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"image.jpg\"\r\n", @"file"] dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:[@"Content-Type: image/jpg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:imageData];
    [body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
}
[body appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];




// Data uploading task. We could use NSURLSessionUploadTask instead of NSURLSessionDataTask if we needed to support uploads in the background
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@%@",kURLBase,kURLAddPostDL]];
NSLog(@"url %@",url);
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:10000];
request.HTTPMethod = @"POST";
request.HTTPBody = body;



NSURLSessionUploadTask *upload=[session uploadTaskWithRequest:request fromData:request.HTTPBody];
[upload resume];
}

---

我将我的代码更新为此，并在服务器上检查我的请求从未到达服务器。我正在使用此代码

        NSInteger randomNumber = arc4random() % 1000000;
    NSURLSessionConfiguration *config = [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:[NSString stringWithFormat:@"testSession.foo.%d", randomNumber]];
    config.sharedContainerIdentifier=kGroupNameToShareData;
  session = [NSURLSession sessionWithConfiguration:config delegate:self delegateQueue:nil];
  NSURLSessionUploadTask  *uploadTask = [session uploadTaskWithRequest:request fromFile:[NSURL        URLWithString:[NSString stringWithFormat:@"file://%@", dataSrcImagePath]]];

   [uploadTask resume];

Answer 1

扩展程序不允许有自己的缓存磁盘空间。需要与应用分享

上传大图需要缓存磁盘空间，所以上传失败。

您需要使用以下代码创建 url 会话：

let configName = "com.shinobicontrols.ShareAlike.BackgroundSessionConfig"
let sessionConfig = NSURLSessionConfiguration.backgroundSessionConfigurationWithIdentifier(configName)
// Extensions aren't allowed their own cache disk space. Need to share with application
sessionConfig.sharedContainerIdentifier = "group.ShareAlike"
let session = NSURLSession(configuration: sessionConfig)

然后将应用组设置为扩展目标和包含应用。

以及更多信息，您可以参考以下链接： http://www.shinobicontrols.com/blog/posts/2014/07/21/ios8-day-by-day-day-2-sharing-extension

Answer 2

您应该使用后台 NSURLSession，因为您应该通过在您的 NSExtensionContext 实例上调用 completeRequestByReturningItems 来尽快关闭共享 UI。

Answer 3

问题是我没有使用后台会话

  NSURLSessionConfiguration *configuration= [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:configurationName];

---

- (void)performUploadWith3:(NSDictionary *)parameters imageFile:(UIImage *)image

{

NSString *fileName = @"image.file";
NSString *boundary= @"Boundary+2EB36F87257DBBD4";

NSURL *storeURL = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:kGroupNameToShareData];


storeURL=[storeURL URLByAppendingPathComponent:fileName];
NSLog(@"sotre url %@",storeURL);

NSData *imageData =  UIImageJPEGRepresentation(image, 0.8);

imageData =[self appendParams:parameters andImage:image bondary:boundary];


if (!([imageData writeToFile:[storeURL path] atomically:YES]))
{
    NSLog(@"Failed to save file.");
}


NSString *string=@"URL here";


NSURL *url = [NSURL URLWithString:string];

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request setHTTPMethod:@"POST"];


NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];
[request setValue:contentType forHTTPHeaderField:@"Content-Type"];

for (NSString *key in parameters)
{
    [request setValue:[parameters objectForKey:key] forHTTPHeaderField:key];

}


if (session == nil)
{
    //If this is the first upload in this batch, set up a new session

    //Each background session needs a unique ID, so get a random number
    NSInteger randomNumber = arc4random() % 1000000;


    sessionConfiguration = [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:[NSString stringWithFormat:@"and unique name"]];
    sessionConfiguration.sharedContainerIdentifier=kGroupNameToShareData;
    // config.HTTPMaximumConnectionsPerHost = 1;


    session = [NSURLSession  sessionWithConfiguration:sessionConfiguration delegate:self delegateQueue:nil];

    //Set the session ID in the sending message structure so we can retrieve it from the
    //delegate methods later
    //            [sendingMessage setValue:session.configuration.identifier forKey:@"sessionId"];
    NSLog(@"config %@",sessionConfiguration.sharedContainerIdentifier);
}




if([[NSFileManager defaultManager]fileExistsAtPath:[storeURL path]])
{

    NSURLSessionUploadTask  *uploadTask = [session uploadTaskWithRequest:request fromFile:storeURL];
    [uploadTask resume];
}
else
    NSLog(@"file does not exsit");

    NSLog(@"desc %@",[session sessionDescription]);



    //   NSLog(@"state %ld", [uploadTask state]);

    }