I want to download pdf file. When I download small pdf file then I get plus value but when i download large file then I get minus value using afnetworking.
here is my code:
- (IBAction)download:(id)sender {
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#""]];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
NSString *pdfName = #"The_PDF_Name_I_Want.pdf";
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [[paths objectAtIndex:0] stringByAppendingPathComponent:pdfName];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:path append:NO];
[operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
NSLog(#"Download = %f", (float)totalBytesRead / totalBytesExpectedToRead);
self.progressView3.progress = (float)totalBytesRead / totalBytesExpectedToRead;
}];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Successfully downloaded file to %#", path);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
[operation start];
}
see my output
2016-04-06 15:04:53.842 pdf[8149:60b] Download = -811521.000000
2016-04-06 15:04:53.849 pdf[8149:60b] Download = -817179.000000
2016-04-06 15:04:53.860 pdf[8149:60b] Download = -819123.000000
2016-04-06 15:04:53.872 pdf[8149:60b] Download = -823469.000000
2016-04-06 15:04:53.879 pdf[8149:60b] Download = -826393.000000
2016-04-06 15:04:53.921 pdf[8149:60b] Download = -827820.000000
2016-04-06 15:04:53.932 pdf[8149:60b] Download = -830744.000000
2016-04-06 15:04:53.939 pdf[8149:60b] Download = -833662.000000
please solve my problem...
your problem is content length to upload pdf file in server
.totalBytesExpectedToRead is -1 if the Content-Length HTTP header isn't provided
by the server.you should either add this header to your server, or handle -1 by showing a UIActivityIndicator instead of a UIProgressView.
As your logs show, the totalBytesExpectedToRead is -1. This happens when the Content-Length isn't provided in the response headers.
You can handle this either by asking the server-side guys to return the appropriate Content-Length, or in the iOS app by showing a simple Activity Indicator instead of a Progress View.
Related
I am making an app that will transmit data from glasses to the server for broadcasting.
Til now i am able to download data from glasses to my iPhone document directory.
now i want to upload that downloaded data to my server so that we can broadcast that data to our users.
My iPhone and glasses are connected with each other with the help of WiFi, and i am trying to upload downloaded data via cellular network.
So basically my concept is that download data from glasses and upload that to server.
I have try to make my iPhone as a server to that my back end team could download data from my iPhone.
I got success in this method but the problem is that for this process the client and server should be on same private ip networks.
so now we have left with only one way that we download TS chucks from glasses and same time upload the TS file to our server for broadcasting.
I am using NFNetworking to download video chucks from glasses "TS File" but not able to upload that chucks to my server.
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://xxx.xx.xx.x/abc/trunk/WebServices/app/webroot/xyz"]];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request] ;
operation.outputStream = [NSOutputStream outputStreamWithURL:[NSURL URLWithString:#"http://abc.aa.a.a/xyz/trunk/WebServices/app/webroot/img/glasses/test/demo.ts"] append:NO];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
// NSLog(#"Successfully downloaded file to %#", path);
// NSLog(#"download finished!");
if(_delegate && [_delegate respondsToSelector:#selector(ZBTM3U8SegmentDownloaderFinishDownload:)])
{
[_delegate ZBTM3U8SegmentDownloaderFinishDownload:self];
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
// NSLog(#"Error: %#", error);
}];
[operation start];
It goes in success state but data is not uploaded on server
server folder show empty.
- (void)postVideoOnServer {
NSDictionary *requestDict = #{ #"uniqueToken":#"101", #"user_id":#"102",};
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [[paths objectAtIndex:0] stringByAppendingPathComponent:_tsFileName];
NSData *selectedVideo = [NSData dataWithContentsOfFile:path];
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
AFHTTPRequestOperation *operation = [manager POST:#"http://xxx.x.x.xx/myi/public_html/WebServices/broad/axy" parameters:requestDict constructingBodyWithBlock: ^(id <AFMultipartFormData> formData) {
[formData appendPartWithFileData:selectedVideo name:#"file" fileName:#"filename.ts" mimeType:#"video/quicktime"];
} success: ^(AFHTTPRequestOperation *operation, id responseObject)
{
NSInteger statusCode = operation.response.statusCode;
NSLog(#"Status Code ::%d", statusCode);
NSLog(#"Response ::%#", responseObject);
[self handleVideoServiceResponse:responseObject];
}
failure : ^(AFHTTPRequestOperation *operation, NSError *error)
{
NSLog(#"Error: %# %#", operation.responseString, error);
}];
[operation start];
}
it always return request time out error.
Thanks in advance.
Are you sure NSData *selectedVideo is not nil? i doubt you mime type too? Just a suggestion try use MIME: video/MP2T, it should fix your problem.
I am using AFNetworking Library,
How to download the large amount of data using AFNetworking Library to show the better performance?
I have followed the following steps:
".zip" files downloading the content from server.
I have added one url , like this i have so many url's to download the content from the server. It takes too much time. How to perform the fast downloading from server.
My Query is: If the url was not found on server, then it executes failure state.
but the ".zip" is storing in documents folder with empty content like zerobytes.
while am trying to extract the .zip it shows .cpgz format.
Let us know how to resolve this?
-(void)downloadSingFile:(NSUInteger )activityAtIndex totalCount:(NSUInteger )lessonTotalCount{
// http://118.102.131.158/IYG_wrapper/IYG_updated/IYG_G7_L03/IYG_UN_Mall.zip
NSString *activityUrl = [filterObjects objectAtIndex:activityAtIndex];
NSURL *zipFileAtUrl = [NSURL URLWithString:[activityUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
BOOL success = [libraryObj createFolderWithName:rootName];
if (success) {
activityPath = [[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:rootName] stringByAppendingPathComponent:[zipFileAtUrl lastPathComponent]];
}
NSURLRequest *request = [NSURLRequest requestWithURL:zipFileAtUrl];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:activityPath append:NO];
[operation setCompletionBlock:^{
sleep(1);
NSLog(#"sucessfully downloaded file %d",activityIndx);
[self extractSingleActivityAtindex:activityIndx];
}];
[operation start];
[operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
float percentDone = ((float)(totalBytesRead) / (float)(totalBytesExpectedToRead));
self.tableView.alpha = 0.7;
progressView.hidden = NO;
progressAlert.hidden = NO;
progressAlert.labelText = #"Downloading..";
[self updateProgress:percentDone];
NSLog(#"progress float value is: %.2f",percentDone);
}];
}
1.Please let us know, now i dont want to download the which is exist in documents folder path and also let us know whether the the file has been downloaded sucessfully or not.
A couple of thoughts:
If you want to know if it succeeded or not, rather than using setCompletionBlock, you should use setCompletionBlockWithSuccess:failure:.
In a related topic, I might be inclined to download the file to some temporary file (in the NSTemporaryDirectory() folder) and only once it was successfully downloaded, move it to the Documents folder. You want to completely eliminate the possibility of any in-progress download resulting in a file in Documents.
If you don't want to download a file that already exists in your Documents folder, then you have to program that logic yourself (i.e. use NSFileManager to see if the file exists, and if not, only then initiate the download).
Eliminate the sleep call. You never want to sleep (esp on the main thread). If you really want to trigger something to happen one second later, use dispatch_after:
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
NSLog(#"sucessfully downloaded file %d",activityIndx);
[self extractSingleActivityAtindex:activityIndx];
});
You need to take care of below points to achieve your functionality
Check file is already exist or not before download
Implement failure block and remove file at your activityPath
For reference, please check below code snippet.
-(void)downloadSingFile:(NSUInteger )activityAtIndex totalCount:(NSUInteger )lessonTotalCount{
// http://118.102.131.158/IYG_wrapper/IYG_updated/IYG_G7_L03/IYG_UN_Mall.zip
NSString *activityUrl = [filterObjects objectAtIndex:activityAtIndex];
NSURL *zipFileAtUrl = [NSURL URLWithString:[activityUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
BOOL success = [libraryObj createFolderWithName:rootName];
if (success) {
activityPath = [[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:rootName] stringByAppendingPathComponent:[zipFileAtUrl lastPathComponent]];
}
if ([[NSFileManager defaultManager]fileExistsAtPath:activityPath]) {
NSLog(#"File Already Exist");
[self extractSingleActivityAtindex:activityIndx];
return;
}
NSURLRequest *request = [NSURLRequest requestWithURL:zipFileAtUrl];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:activityPath append:NO];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
sleep(1);
NSLog(#"sucessfully downloaded file %d",activityIndx);
dispatch_async(dispatch_get_main_queue(), ^() {
[self extractSingleActivityAtindex:activityIndx];
});
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
// NSLog(#"ERR: %#", [error description]);
[[NSFileManager defaultManager]removeItemAtPath:activityPath error:nil];
}];
[operation start];
[operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
float percentDone = ((float)(totalBytesRead) / (float)(totalBytesExpectedToRead));
self.tableView.alpha = 0.7;
progressView.hidden = NO;
progressAlert.hidden = NO;
progressAlert.labelText = #"Downloading..";
[self updateProgress:percentDone];
NSLog(#"progress float value is: %.2f",percentDone);
}];
}
In my application i am trying to download thousands of images (each image size with a maximum of 3mb) and 10's of videos (each video size with a maximum of 100mb) and saving it in Documents Directory.
To achieve this i am using AFNetworking
Here my problem is i am getting all the data successfully when i am using a slow wifi (around 4mbps), but the same downloading if i am doing under a wifi with a speed of 100mbps the application is getting memory warning while downloading images and memory pressure issue while downloading videos and then application is crashing.
-(void) AddVideoIntoDocument :(NSString *)name :(NSString *)urlAddress{
NSMutableURLRequest *theRequest=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlAddress]];
[theRequest setTimeoutInterval:1000.0];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:theRequest];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [[paths objectAtIndex:0] stringByAppendingPathComponent:name];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:path append:NO];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Successfully downloaded file to %#", path);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
[operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
//NSLog(#"Download = %f", (float)totalBytesRead / totalBytesExpectedToRead);
}];
[operation start];
}
-(void)downloadRequestedImage : (NSString *)imageURL :(NSInteger) type :(NSString *)imgName{
NSMutableURLRequest *theRequest=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:imageURL]];
[theRequest setTimeoutInterval:10000.0];
AFHTTPRequestOperation *posterOperation = [[AFHTTPRequestOperation alloc] initWithRequest:theRequest];
posterOperation.responseSerializer = [AFImageResponseSerializer serializer];
[posterOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
//NSLog(#"Response: %#", responseObject);
UIImage *secImg = responseObject;
if(type == 1) { // Delete the image from DB
[self removeImage:imgName];
}
[self AddImageIntoDocument:secImg :imgName];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Image request failed with error: %#", error);
}];
[posterOperation start];
}
The above code i am looping according to the number of videos and images that i have to download
What is the reason behind that behaviour
I even have screen shots of memory allocation for both the scenarios
Please Help
Adding code for saving the downloaded images also
-(void)AddImageIntoDocument :(UIImage *)img :(NSString *)str{
if(img) {
NSData *pngData = UIImageJPEGRepresentation(img, 0.4);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *filePathName =[[paths objectAtIndex:0]stringByAppendingPathComponent:str];
[pngData writeToFile:filePathName atomically:YES];
}
else {
NSLog(#"Network Error while downloading the image!!! Please try again.");
}
}
The reason for this behavior is that you're loading your large files into memory (and presumably it's happening quickly enough that you app isn't having a chance to respond to memory pressure notifications).
You can mitigate this by controlling the peak memory usage by not loading these downloads into memory. When download large files, it's often better to stream them directly to persistent storage. To do this with AFNetworking, you can set the outputStream of the AFURLConnectionOperation, and it should stream the contents directly to that file, e.g.
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
NSString *documentsPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
NSString *path = [documentsPath stringByAppendingPathComponent:[url lastPathComponent]]; // use whatever path is appropriate for your app
operation.outputStream = [[NSOutputStream alloc] initToFileAtPath:path append:NO];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"successful");
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"failure: %#", error);
}];
[self.downloadQueue addOperation:operation];
BTW, you'll notice that I'm not just calling start on these requests. Personally, I always add them to a queue for which I've specified the maximum number of concurrent operations:
self.downloadQueue = [[NSOperationQueue alloc] init];
self.downloadQueue.maxConcurrentOperationCount = 4;
self.downloadQueue.name = #"com.domain.app.downloadQueue";
I think this is less critical regarding memory usage than the streaming of the results directly to a outputStream using persistent storage, but I find this is another mechanism for managing system resources when initiating many concurrent requests.
You can start using NSURLSession's downloadTask.
I think this will resolve your issue.
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://someSite.com/somefile.zip"]];
[[NSURLSession sharedSession] downloadTaskWithRequest:request
completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error)
{
// Use location (it's file URL in your system)
}];
Im noob in AFNetworking and I learning it now. I want download file from url and save in my app (Document Folder) but it dosen't work.I have one button that when click it start download.
this is my code for download file :
- (IBAction)downloads:(id)sender
{
NSLog(#"start downloads");
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://192.168.1.100/mamal/filemanager.php"]];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [paths objectAtIndex:0];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:[path stringByAppendingPathComponent:#"filemanager.php"] append:NO];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Successfully downloaded file to %#", path);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
}
in this code when click on button take me this massage = 'start downloads' but dont show me 'Successfully downloaded file to %#' why?? my code not complete???
You didn't start the operation. Use the following line to start the operation :
[operation start];
I want create one application that download any file from internet and store in document folder.
I searching in google and this site and I understand to use AFNetworking is better.
in this framework I can show progessView for show download status.
Im new in AFNetworking and I want you guide me about it and tell me with code that how to create one application that download file with AFNetworking and show progessView status download.
Use UIProgressview
Here in code progress is the UIProgressview used
filepath : the path to which the file is saved[Documents directory]
import
#import <AFNetworking/AFNetworking.h>
and to download
progress.progress = 0.0;
currentURL=#"http://www.selab.isti.cnr.it/ws-mate/example.pdf";
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:currentURL]];
AFURLConnectionOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *filePath = [[paths objectAtIndex:0] stringByAppendingPathComponent:#"MY_FILENAME_WITH_EXTENTION.pdf"];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:filePath append:NO];
[operation setDownloadProgressBlock:^(NSInteger bytesRead, NSInteger totalBytesRead, NSInteger totalBytesExpectedToRead) {
progress.progress = (float)totalBytesRead / totalBytesExpectedToRead;
}];
[operation setCompletionBlock:^{
NSLog(#"downloadComplete!");
}];
[operation start];
try this For AFNetworking Image download with Progress bar.
https://www.cocoacontrols.com/controls/nprimageview
and two folder are missing in this project, and you can download it from heare
https://github.com/nicnocquee/NPRImageView/tree/master/Externals