NSUrlConnection doesnt seem to be working, - ios

Question

I'm trying to use googletts converted and seem to be running into trouble. I think I made the class correctly in terms of structure. But I dont think the NSURLConnection is returning any useful data. Can someone please help me check if its working and if not why?
In the connectiondidfinishloading section I am checking download length
NSLog(#"hmmmm %lu", (unsigned long)[downloadedData length])
which is returning 0. Thats why I think its not working.
The goal is to have the app speak what is downloaded
Thanks!!!
I just have a button in my view controller that launches everything
#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>
#import "RJGoogleTTS.h"
#interface ViewController : UIViewController <CLLocationManagerDelegate>
#property (weak, nonatomic) IBOutlet UILabel *userLabel;
#property (strong, nonatomic) CLLocationManager *locationManager;
#property (strong, nonatomic) CLGeocoder *geoCoder;
#property (strong, nonatomic) RJGoogleTTS *googleTTS;
- (IBAction)geoCodeLocation:(id)sender;
- (IBAction)rjGoogleButton:(id)sender;
#end
here is the implementation file
- (IBAction)rjGoogleButton:(id)sender {
googleTTS = [[RJGoogleTTS alloc]init];
[googleTTS convertTextToSpeech:#"How are you today user?"];
}
RJGoogleTTS.h
#import <Foundation/Foundation.h>
#protocol RJGoogleTTSDelegate <NSObject>
#required
- (void)receivedAudio:(NSMutableData *)data;
- (void)sentAudioRequest;
#end
#interface RJGoogleTTS : NSObject {
id <RJGoogleTTSDelegate> delegate;
NSMutableData *downloadedData;
}
#property (nonatomic, retain) id <RJGoogleTTSDelegate> delegate;
#property (nonatomic, retain) NSMutableData *downloadedData;
- (void)convertTextToSpeech:(NSString *)searchString;
#end
.m
#import "RJGoogleTTS.h"
#import <AVFoundation/AVFoundation.h>
#implementation RJGoogleTTS
#synthesize delegate, downloadedData;
- (id)init
{
self = [super init];
if (self) {
// Initialization code here.
}
return self;
}
- (void)convertTextToSpeech:(NSString *)searchString {
NSString *search = [NSString stringWithFormat:#"http://translate.google.com/translate_tts?q=%#", searchString];
search = [search stringByReplacingOccurrencesOfString:#" " withString:#"%20"];
NSLog(#"Search: %#", search);
self.downloadedData = [[NSMutableData alloc] initWithLength:0];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:search]];
[request setValue:#"Mozilla/5.0" forHTTPHeaderField:#"User-Agent"];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES];
[delegate sentAudioRequest];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSLog(#"did you receive response user");
[self.downloadedData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
NSLog(#"did you receive data user");
[self.downloadedData appendData:data];
// AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc]initWithData:downloadedData error:nil];
// [audioPlayer play];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
NSLog(#"Failure");
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSLog(#"it worked user!!!");
[delegate receivedAudio:self.downloadedData];
NSLog(#"hmmmm %d", [self.downloadedData length]);
// NSString *txt = [[NSString alloc] initWithData:downloadedData encoding: NSASCIIStringEncoding];
// NSLog(#"%#hello",txt);
}
#end

Answer 1

Remember that this is happening asynchronously. You set the size of downloadedData to 0 after your call the NSURLConnection.
Move:
self.downloadedData = [[NSMutableData alloc] initWithLength:0];
before your call to NSURLConnection.

Answer 2

There's nothing wrong with your NSURLConnection methods. Your search string is wrong. It should be:
NSString *search = [NSString stringWithFormat:#"http://translate.google.com/translate_tts?tl=en&q=%#",searchString];

Answer 3

You didn't start the URLConnection. Change [[NSURLConnection alloc] initWithRequest:request delegate:self]; like this [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES];