iOs receivedData from NSURLConnection is nil
- by yhl
I was wondering if anyone could point out why I'm not able to capture a web reply. My NSLog shows that my [NSMutableData receivedData] has a length of 0 the entire run of the connection. The script that I hit when I click my login button returns a string. My NSLog result is pasted below, and after that I've pasted both the .h and .m files that I have.
NSLog Result
2012-11-28 23:35:22.083 [12548:c07] Clicked on button_login
2012-11-28 23:35:22.090 [12548:c07] theConnection is succesful
2012-11-28 23:35:22.289 [12548:c07] didReceiveResponse
2012-11-28 23:35:22.290 [12548:c07] didReceiveData
2012-11-28 23:35:22.290 [12548:c07] 0
2012-11-28 23:35:22.290 [12548:c07] connectionDidFinishLoading
2012-11-28 23:35:22.290 [12548:c07] 0
ViewController.h
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
// Create an Action for the button.
- (IBAction)button_login:(id)sender;
// Add property declaration.
@property (nonatomic,assign) NSMutableData *receivedData;
@end
ViewController.m
#import ViewController.h
@interface ViewController ()
@end
@implementation ViewController
@synthesize receivedData;
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSLog(@"didReceiveResponse");
[receivedData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
NSLog(@"didReceiveData");
[receivedData appendData:data];
NSLog(@"%d",[receivedData length]);
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSLog(@"connectionDidFinishLoading");
NSLog(@"%d",[receivedData length]);
}
- (IBAction)button_login:(id)sender {
NSLog(@"Clicked on button_login");
NSString *loginScriptURL = [NSString stringWithFormat:@"http://www.website.com/app/scripts/login.php?"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:loginScriptURL]];
NSString *postString = [NSString stringWithFormat:@"¶mUsername=user¶mPassword=pass"];
NSData *postData = [postString dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
[theRequest setHTTPMethod:@"POST"];
[theRequest setHTTPBody:postData];
// Create the actual connection using the request.
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
// Capture the response
if (theConnection) {
NSLog(@"theConnection is succesful");
} else {
NSLog(@"theConnection failed");
}
}
@end
