After trying I was able to upload an image taken from the camera to my webserver.
But what I do no understand is why the image quality is crappy, low resolution, very few colors. Is there a way to get a better quality ?
here is my code :
NSURL *url = [NSURL URLWithString:#"http://localhost"];
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
NSData *imageData = UIImageJPEGRepresentation(image, 0.9);
NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:#"POST" path:#"/upload.php" parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
[formData appendPartWithFileData:imageData name:#"file" fileName:#"temp.jpeg" mimeType:#"image/jpeg"];
}];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
NSLog(#"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
}];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
{
NSString *response = [operation responseString];
NSLog(#"response: [%#]",response);
//[MBProgressHUD hideHUDForView:self.view animated:YES];
}
failure:^(AFHTTPRequestOperation *operation, NSError *error)
{
//[MBProgressHUD hideHUDForView:self.view animated:YES];
if([operation.response statusCode] == 403)
{
NSLog(#"Upload Failed");
return;
}
NSLog(#"error: %#", [operation error]);
}];
[operation start];
thanks Regis
Sorry guys in order to work on my webserver I use realVnc. The set up of RealVnc was set to low resolution !!! I did change setup to have a better resolution and now the problem is solved!
Related
I am using the code below to retrieve data from Url via PHP file, the tableview controller will start the Activity Indicator. What I am trying to do is to stop the indicator As soon as there are no data has been loaded to the tableview.
Her is the code;
NSString *urlString = [NSString stringWithFormat:#"http:/MyWebSite/ChoseMyLike.php?userName=%#", myString];
NSURL *url = [NSURL URLWithString:[urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSURLSessionTask *task = [[NSURLSession sharedSession] dataTaskWithURL:url completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (!data) {
NSLog(#"connection error: %#", error);
return;
}
NSError *parseError;
NSArray *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&parseError];
if (!json) {
NSLog(#"JSON Parsing error: %#", parseError);
NSLog(#"data = %#", [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);
return;
}
NSMutableArray *results = [[NSMutableArray alloc]init];
for (int i = 0; i < json.count; i++) {
NSString *cQasidaName = json[i][#"qasidaName"];
NSString *cQasidaShaerName = json[i][#"qasidaShaerName"];
NSString *cQasidaBody = json[i][#"qasidaBody"];
NSString *cQasidaDate = json[i][#"myDate"];
NSString *cQasidaTime = json[i][#"myTime"];
NSString *cQasidaRate = json[i][#"myRate"];
NSString *cQasidaId = json[i][#"qasidaId"];
NSString *cQasidaUserName = json[i][#"userName"];
NSString *cTheUserId = json[i][#"theUserId"];
NSString *cTheUserNameArabic = json[i][#"userNameArabic"];
[results addObject:[[ListOfObjects alloc] initWithQasidaName: (NSString *) cQasidaName andQasidaShaerName: (NSString *) cQasidaShaerName andQasidaBody: (NSString *) cQasidaBody andQasidaDate: (NSString *) cQasidaDate andQasidaTime: (NSString *) cQasidaTime andQasidaRate: (NSString *)cQasidaRate andQasidaId:cQasidaId andQasidaUserName:cQasidaUserName andTheUserId:cTheUserId andTheUserNameArabic:cTheUserNameArabic]];
}
dispatch_async(dispatch_get_main_queue(), ^{
self.listArray = results;
[self.tableView reloadData];
[spinner stopAnimating];
});
}];
[task resume];
}
At the moment the indicator is not stopping. What do I need to do?
Thanks
Simply call [spinner stopAnimating]; for all return paths:
if (!data) {
NSLog(#"connection error: %#", error);
[spinner stopAnimating];
return;
}
and
if (!json) {
NSLog(#"JSON Parsing error: %#", parseError);
NSLog(#"data = %#", [[NSString alloc] initWithData:data
encoding:NSUTF8StringEncoding]);
[spinner stopAnimating];
return;
}
Note: it's much easier to have a single return statement and then you can always call [spinner stopAnimating]; at the end of the method... consider restructuring your code.
I have written a REST service that serves up some data. It is passcode protected.
I am trying to write a background process that will grab the data and stuff it into a sqlLite db I have in the app.
I did this initially without authentication using :
- (void) callWebService {
dispatch_sync(kBgQueue, ^{
NSData* data = [NSData dataWithContentsOfURL:
scoularDirectoryURL];
[self performSelectorOnMainThread:#selector(fetchedData:) withObject:data waitUntilDone:YES];
});
}
This worked fine but I don't think I can add authentication to that. If I can I would just use that.
What I am looking for is a nice, simple explanation of NSURLSession using user/password authentication.
I think your question is vague and underspecified. That said, here's one solution, from here:
-(void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)( NSURLSessionAuthChallengeDisposition disposition, NSURLCredential *credential))completionHandler
{
if (_sessionFailureCount == 0) {
NSURLCredential *cred = [NSURLCredential credentialWithUser:self.userName password:self.password persistence:NSURLCredentialPersistenceNone];
completionHandler(NSURLSessionAuthChallengeUseCredential, cred);
} else {
completionHandler(NSURLSessionAuthChallengeCancelAuthenticationChallenge, nil);
}
_sessionFailureCount++;
}
I strongly recommend that you read and re-read the Apple docs on this.
For me the following code works:
NSString *userName=#"user:";
NSString *userPassword=#"password";
NSString *authStr= [userName stringByAppendingString:userPassword];
NSString *url=#"http://000.00.0.0:0000/service.json";
NSData *authData = [authStr dataUsingEncoding:NSUTF8StringEncoding];
NSString *authValue = [NSString stringWithFormat: #"Basic %#",[authData base64EncodedStringWithOptions:0]];
NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]];
[request setValue:authValue forHTTPHeaderField:#"Authorization"];
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *response,
NSData *data, NSError *connectionError)
NSDictionary *theDictionary = [NSJSONSerialization JSONObjectWithData:data
options:0
error:NULL];
NSDictionary *host = [theDictionary objectForKey : #"host"];
// json nested
self.label.text = [host objectForKey:#"key1"];
self.label.text = [host objectForKey:#"key2"];
regards
I am trying to to use mail api from sendgrid.com but everytime it finishes with failure block.
Also I don't understand how to send the image as an attachment in the email. Can anybody tell me whats wrong in below code & how can I send image ? I am using below code for now
-(void)sendEmail
{
NSMutableDictionary *params = [[NSMutableDictionary alloc]init];
[params setValue:#"username" forKey:#"api_user"];
[params setValue:#"sdsfddf23423" forKey:#"api_key"];
[params setValue:#"test#gmail.com" forKey:#"to"];
[params setValue:#"test user" forKey:#"toname"];
[params setValue:#"Test SendGrid" forKey:#"subject"];
[params setValue:#"Test SendGrid from iOS app" forKey:#"text"];
[params setValue:#"noreply#gmail.com" forKey:#"from"];
NSURL *url = [NSURL URLWithString:#"https://sendgrid.com/api"];
AFHTTPClient *client = [[AFHTTPClient alloc] initWithBaseURL: url];
NSMutableURLRequest *request = [client requestWithMethod:POST path:#"/mail.send.json" parameters:params];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
{
NSDictionary *response = [NSJSONSerialization JSONObjectWithData:responseObject options:0 error:nil];
DLog(#"Get latest product info response : %#", response);
NSLog(#"Success");
} failure: ^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Failure");
}];
[operation start];
}
Thanks in advance.
Update
I made some changes in code & now I can send the email successfully as below
-(void)sendEmailWithoutImage
{
NSDictionary *parameters = #{#"api_user": #"username",
#"api_key": #"sdsfddf23423",
#"subject":#"Test SendGrid",
#"from":#"noreply#gmail.com",
#"to":#"test#gmail.com",
#"text":#"Test SendGrid from iOS app"};
[[MyAPIClient sharedAPIClient] POST:#"mail.send.json" parameters:parameters success:^(NSURLSessionDataTask *task, id responseObject)
{
NSLog(#"Success::responseObject : %#", responseObject);
} failure:^(NSURLSessionDataTask *task, NSError *error) {
NSLog(#"Error::Mail response : %#", error);
}];
}
But when I try to send the image as attachment then it result in 400 bad request. So I think there is some error in my file uploading block. Here is my code
-(void)sendEmailWithImage
{
NSDictionary *parameters = #{#"api_user": #"username",
#"api_key": #"sdsfddf23423",
#"subject":#"Test SendGrid",
#"from":#"noreply#gmail.com",
#"to":#"test#gmail.com",
#"text":#"Test SendGrid from iOS app"};
[[MyAPIClient sharedAPIClient] POST:#"mail.send.json" parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData)
{
UIImage *image = [UIImage imageNamed:#"redWine.png"];
NSData *imageToUpload = UIImagePNGRepresentation(image);
[formData appendPartWithFileData:imageToUpload name:#"files" fileName:[NSString stringWithFormat:#"%#",#"abc.png"] mimeType:#"image/png"];
}
success:^(NSURLSessionDataTask *task, id responseObject)
{
NSLog(#"Success::responseObject : %#", responseObject);
}
failure:^(NSURLSessionDataTask *task, NSError *error)
{
NSLog(#"Error::Mail response : %#", error);
}];
}
Can you anybody tell me whats going wrong while uploading the image ?
Thanks
Just modified your code a little. It looks like there was an issue with the parameters being sent and the URL path.
Also since you are already using AFNetworking to make your POST request, you can follow their docs and example on how to send a photo over here: http://cocoadocs.org/docsets/AFNetworking/2.0.1/
NSDictionary *parameters = #{#"api_user": #"username",
#"api_key": #"sdsfddf23423",
#"Test SendGrid":#"test",
#"from":#"noreply#gmail.com",
#"to":#"test#gmail.com",
#"text":#"Test SendGrid from iOS app"};
NSURL *url = [NSURL URLWithString:#"https://sendgrid.com/api/"];
AFHTTPClient *client = [[AFHTTPClient alloc] initWithBaseURL: url];
NSMutableURLRequest *request = [client requestWithMethod:#"POST" path:#"mail.send.json" parameters:parameters];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
{
NSDictionary *response = [NSJSONSerialization JSONObjectWithData:responseObject options:0 error:nil];
// DLog(#"Get latest product info response : %#", response);
NSLog(#"Success: %#", response);
} failure: ^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"%#",error);
}];
[operation start];
Update**
Created a Sendgrid-ios library to make it easier to send an email and photo attachment.
//create Email Object
gridmail *msg = [gridmail user:#"username" andPass:#"password"];
//set parameters
msg.to = #"foo#bar.com";
msg.subject = #"subject goes here";
msg.from = #"me#bar.com";
msg.text = #"hello world";
msg.html = #"<h1>hello world!</h1>";
//Image attachment
[msg attachImage:self.photo];
//Send email through Web API Transport
[msg sendWithWeb];
In my current xcode project, I need to send parameter values to a url and need to retrieve an xml file based on the parameter values sent.
I tried the below code but it's not working:
(IBAction)myButtonClick:(id)sender
{
NSURL *oRequestURL =
[NSURL URLWithString:#"http://xyz .com/air/1.0/search?from=MAA&to=CJB&depart-date=2012-06-30&adults=2&children=2&infants=1&way=one&cabin-type=Economy&sort=asc"];
NSMutableURLRequest *oRequest = [[[NSMutableURLRequest alloc]init]autorelease];
[oRequest setHTTPMethod:#"POST"];
[oRequest setURL: oRequestURL];
NSMutableData *oHttpBody = [NSMutableData data];
[oHttpBody appendData:[#"This is HTTP Request body" dataUsingEncoding:NSUTF8StringEncoding]];
[oRequest setValue:[oHttpBody length] forHTTPHeaderField:#"Content-Length"];
NSError *oError = [[NSError alloc]init];
NSHTTPURLResponse *oResponseCode = nil;
NSData *oResponseData = [NSURLConnection sendSynchronousRequest:oRequest returningResponse:oResponseCode error:oError];
if ([oResponseCode statusCode]> 200) {
NSLog(#"Status code is greater than 200");
}
NSString *strResult=[[NSString alloc]initWithData:oResponseData encoding:NSUTF8StringEncoding];
NSLog(#"The result is %s",strResult);
}
I have searched many sites and books but could not find a solution.
Would be of great help if a link to a tutorial or some other useful resource can be provided. Appreciate your great help.
Thank You.
Hi,
I have found the solution. The code is as below. Hope it helps someone else:)
- (IBAction)myButtonPressed:(id)sender
{
NSString *urlAsString = #"http://api.abc.com/air/1.0/search?from=MAA&to=CJB&depart-date=2012-09-30&adults=2&children=2&infants=1&way=one&cabin-type=Economy&sort=asc";
NSURL *url = [NSURL URLWithString:urlAsString];
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
[urlRequest setValue:#"2193141de2g7e2a34bb19bc3aa52b3b5" forHTTPHeaderField:#"X-XX-API-KEY"];
[urlRequest setTimeoutInterval:30.0f];
[urlRequest setHTTPMethod:#"GET"];
NSOperationQueue *queue = [[NSOperationQueue alloc]init];
[NSURLConnection
sendAsynchronousRequest:urlRequest queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)
{
if ([data length]>0 &&
error == nil)
{
NSString *html = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"HTML = %#", html);
}
else if ([data length]== 0 && error==nil) {
NSLog(#"Nothing was downloaded");
}
else if (error!= nil) {
NSLog(#"Error occured = %#", error);
}
}];
}
Check my app if you don't really understand ( Quick Notes!) But here it goes. My app is a notes app so it allows the user to select from few different kinds of note colors and designs below. When the user selects one, it changes the note above to what ever they set it to. So i need a button that will save the picture they selected, and when the leave the view and come back they can click the load button and the same image they selected will appear. I am using Xcode 4.3.
NSImageView is what your looking for.
This contains info on saving the file (look at the answer with code): Implement drag from NSImageView and save image to a file
The Code:
-(IBAction)saveImageButtonPushed:(id)sender
{
NSBitmapImageRep *rep;
NSData *data;
NSImage *image;
[self lockFocus];
rep = [[NSBitmapImageRep alloc] initWithFocusedViewRect:[self frame]];
[self unlockFocus];
image = [[[NSImage alloc] initWithSize:[rep size]] autorelease];
[image addRepresentation:rep];
data = [rep representationUsingType: NSPNGFileType properties: nil];
//save as png but failed
[data writeToFile: #"asd.png" atomically: NO];
//save as pdf, succeeded but with flaw
data = [self dataWithPDFInsideRect:[self frame]];
[data writeToFile:#"asd.pdf" atomically:YES];
}
//......
#end
To load an image:
The Code:
NSImage loadedImage = [[NSImage alloc] initWithContentsOfFile: NSString* filePath]
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"yyyyMMddHHmmss"];
NSDate *date = [[NSDate date] dateByAddingTimeInterval:1];
profile_img = [NSString stringWithFormat:#"%#.png",[dateFormatter stringFromDate:date]];
[profile_img retain];
NSLog(#"formattedDateString: %#",profile_img);
NSData *imageToUpload = UIImagePNGRepresentation(Img_View.image);
AFHTTPClient *client= [AFHTTPClient clientWithBaseURL:[NSURL URLWithString:ServerPath]];
NSMutableURLRequest *request = [client multipartFormRequestWithMethod:#"POST" path:#"Upload.php" parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
[formData appendPartWithFileData: imageToUpload name:#"file" fileName:profile_img mimeType:#"image/png"];
}];
AFHTTPRequestOperation *operation2 = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation2 setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation2, id responseObject)
{
NSString *response = [operation2 responseString];
NSLog(#"response: [%#]",response);
NSString *post = [NSString stringWithFormat:#"Images=%#",profile_img];
NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO];
NSString *postLength = [NSString stringWithFormat:#"%d", [post length]];
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:#"%#Gallery.php",ServerPath]];
NSMutableURLRequest *request1 = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
[request1 setHTTPMethod:#"POST"];
NSLog(#"%#", post);
[request1 setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request1 setHTTPBody:postData];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request1 returningResponse:nil error:nil];
NSString *responseString = [[[NSString alloc] initWithData:returnData
encoding:NSUTF8StringEncoding] autorelease];
responseString = [responseString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
NSLog(#"%#",responseString);
if([responseString isEqualToString:#"Entered data successfully"])
{
UIAlertView *Alert=[[UIAlertView alloc]initWithTitle:#"Image Share" message:#"Image Share SuccessFully" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:Nil, nil];
[Alert show];
[Alert release];
}
else
{
}
} failure:^(AFHTTPRequestOperation *operation2, NSError *error) {
NSLog(#"error: %#", [operation2 error]);
}];
[operation2 start];