I want to upload pending data to a server and then download all data from the server database at the same button click. But I'm not getting how to show progress bar showing the progress of uploading/downloading.I tried using "setDownloadTaskDidWriteDataBlock" but it is never called. My code:
-(void)asyncTask:(NSString *)strURL parameters:(NSDictionary *)dictParams success:(void (^)(NSDictionary *response))success failure:(void (^)(NSError *error))failure {
NSLog(@"parameters passed to server through services=%@",dictParams);
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
// [manager setResponseSerializer:[AFHTTPResponseSerializer serializer]];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript", @"text/html", nil];
[manager POST:strURL parameters:dictParams progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"inside requestPostUrl JSON: %@", responseObject);
if([responseObject isKindOfClass:[NSDictionary class]]) {
if(success) {
success(responseObject);
}
}
else {
NSDictionary *response = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingAllowFragments error:nil];
if(success) {
success(response);
}
}
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
if(failure) {
failure(error);
}
}];
//the below method is never triggered
[manager setDownloadTaskDidWriteDataBlock:^(NSURLSession *session,NSURLSessionDownloadTask *downloadTask, int64_t bytesWritten, int64_t totalBytesWritten, int64_t totalBytesExpectedToWrite) {
CGFloat written = totalBytesWritten;
CGFloat total = totalBytesExpectedToWrite;
CGFloat percentageCompleted = written/total;
NSLog(@"percentage completed=%f",percentageCompleted);
dispatch_async(dispatch_get_main_queue(), ^{
// here is what you want
// vc.progressBarView.progress = (CGFloat)totalBytesWritten / totalBytesExpectedToWrite;
});
//Return the completed progress so we can display it somewhere else in app
// if( progressBlock){
// dispatch_async(dispatch_get_main_queue(), ^{
// progressBlock(percentageCompleted,remoteURLPath);
// });
// }
}];
Someone please help me! Thank you!
try this code
- (void)sycLocations:(NSString *)strURL parameters:(NSDictionary *)dictParams success:(void (^)(NSDictionary *responce))success failure:(void (^)(NSError *error))failure {
__weak typeof(self) vc = self;
NSLog(@"parameters passed to server through services=%@",dictParams);
manager = [AFHTTPSessionManager manager];
// [manager setResponseSerializer:[AFHTTPResponseSerializer serializer]];
manager.requestSerializer = [AFJSONRequestSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript", @"text/html", nil];
[manager POST:strURL parameters:dictParams progress:^(NSProgress * _Nonnull uploadProgress){
[manager setDataTaskDidReceiveDataBlock:^(NSURLSession *session,
NSURLSessionDataTask *dataTask,
NSData *data)
{
if (dataTask.countOfBytesExpectedToReceive == NSURLSessionTransferSizeUnknown)
return;
NSUInteger code = [(NSHTTPURLResponse *)dataTask.response statusCode];
NSLog(@"status from server=%lu",(unsigned long)code);
if (!(code> 199 && code < 400))
return;
long long bytesReceived = [dataTask countOfBytesReceived];
long long bytesTotal = [dataTask countOfBytesExpectedToReceive];
dispatch_async(dispatch_get_main_queue(), ^{
NSLog(@"show progress status :) ................");
vc.progressBar.progress= (CGFloat)bytesReceived / bytesTotal;
});
}];
}success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
if([responseObject isKindOfClass:[NSDictionary class]]) {
if(success) {
success(responseObject);
}
}
else {
NSDictionary *response = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingAllowFragments error:nil];
if(success) {
success(response);
}
}
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
if(failure) {
failure(error);
}
}];
}