我正在尝试使用Share扩展上传图像,但问题是当我添加后台任务时它给了我这个错误,它说后台任务不支持nsdata但是wwdc会话正在nsdata中上传图像.你能告诉我问题在哪里吗？以及我如何解决它
@H_403_4@NSString *boundary = @"SportuondoFormBoundary";
NSString * configurationName = @"com.xxxxxxxx.PhotoSharing.backgroundConfiguration";
NSURLSessionConfiguration *configuration= [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:configurationName];
[configuration setSharedContainerIdentifier:kGroupNameToShareData];
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];
解决方法
看来Up NSURLSessionUploadTask不支持大尺寸NSData,
但是你可以给NSURLSessionUploadTask一个文件路径上传到服务器上,或者把你的图像暂时写在磁盘上然后给出路径.
但是你可以给NSURLSessionUploadTask一个文件路径上传到服务器上,或者把你的图像暂时写在磁盘上然后给出路径.
Uploads using backgroundSessionConfiguration and NSURLSessionUploadTask cause app to crash
更新 ：
@H_403_4@//Create a file to upload UIImage *image = [UIImage imageNamed:@"onboarding-4@2x.png"]; NSData *imageData = UIImagePNGRepresentation(image); NSFileManager *fileManager = [NSFileManager defaultManager]; NSArray *URLs = [fileManager URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask]; NSString *documentsDirectory = [[URLs objectAtIndex:0] absoluteString];//这是filePath URL
@H_403_4@NSString *filePath = [documentsDirectory stringByAppendingString:@"testfile.png"]; [imageData writeToFile:filePath atomically:YES]; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:@"https://file.upload/destination"]]; [request setHTTPMethod:@"PUT"];//这里使用的是filePath.
@H_403_4@NSURLSessionUploadTask *uploadTask = [upLoadSession uploadTaskWithRequest:request fromFile:[NSURL URLWithString:filePath] completionHandler:^(NSData *data,NSURLResponse *response,NSError *error) { //code }];