IOS : Save Data using Rest Web services with POST method

- (IBAction)providerRegistration:(id)sender

{

@try 

{

    [self.txtClientId resignFirstResponder];

    if([[self.txtEmrName notNull:self.txtEmrName] isEqualToString:@""] || [[self.txtUserName notNull:self.self.txtUserName] isEqualToString:@""] || [[self.txtPassword notNull:self.self.txtPassword] isEqualToString:@""]|| [[self.txtProvider notNull:self.self.txtProvider] isEqualToString:@""]|| [[self.txtClientId notNull:self.self.txtClientId] isEqualToString:@""])

    {

  UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"empty" message:@"information   required" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:Nil, nil];

        [alert show];

        return;

    }

    NSError *error;

    NSString *url = @"http://four-developers.com/service1.svc/GetData";

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]];

    

    

    [request addValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

      [request setHTTPMethod:@"POST"];

    

    NSMutableDictionary* mapData = [[ NSMutableDictionary alloc ] init ];

    

    //[ mapData setObject :@"MEDPRIME" forKey : @"DataSourceName"];

    [ mapData setObject :self.txtEmrName.text forKey : @"aa"];

      

    NSData *postData = [NSJSONSerialization dataWithJSONObject:mapData options:0 error:&error];

    [request setHTTPBody:postData];

    [NSURLConnection sendAsynchronousRequest:request

                                       queue:[NSOperationQueue mainQueue]

                           completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)

 {

                             

                               [[NSOperationQueue mainQueue] addOperationWithBlock:^{

                                   

                                  // UI Updation...

                               }];

                               

                               NSError *err = nil ;

                               NSDictionary   *responseDict = [ NSJSONSerialization JSONObjectWithData :data options : 0 error :&err];

                               NSString* strResult = [responseDict objectForKey : @"ProviderRegristrationResult" ];

                               

                               if([strResult isKindOfClass:[NSNull class]])

                               {

                                   UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"empty" message:@"Data save failed" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:Nil, nil];

                                   [alert show];

                                   return;

                               }

                               else if([strResult isEqualToString:@""])

                               {

                                   UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"empty" message:@"Data save failed" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:Nil, nil];

                                   [alert show];

                                   return;

                               }

                               else if([strResult isEqualToString:@"User Already Exist"])

                               {

                                   UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"empty" message:strResult delegate:self cancelButtonTitle:@"OK" otherButtonTitles:Nil, nil];

                                   [alert show];

                                   return;

                               }

                               else if([strResult isEqualToString:@"Success"])

                               {

                                   UIAlertView* alert = [[UIAlertView alloc]initWithTitle:@"empty" message:@"Data save successfully" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:Nil, nil];

                                   [alert show];

                                   

                               }

                           }];

    

    

}

@catch (NSException *exception)

{

    NSLog(@"%@",exception.description);

    

}

}

Custom activityIndicator using objective C

-(void)StartProgressBar:(NSString *)strMessgae superView:(UIView *)view

{

    

    UIView *alertView=[[UIView alloc] initWithFrame:CGRectMake((view.frame.size.width/2)-50, (view.frame.size.height/2)-80, 100, 70)];

    alertView.tag=505;

    [alertView setBackgroundColor:[UIColor blackColor]];

    [alertView setAlpha:.7];

    alertView.layer.cornerRadius=8.0f;

    

    UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

    //[activityIndicator setFrame:CGRectMake((alertView.frame.size.width/2)-25, 10, 55, 30)]; // Commented on 28thJan2014

    [activityIndicator setFrame:CGRectMake((alertView.frame.size.width/2)-25, 20, 55, 30)];

    [activityIndicator startAnimating];

    [alertView addSubview:activityIndicator];

    

    // Commented on 28thJan2014 START --

//    UILabel *lbl=[[UILabel alloc] initWithFrame:CGRectMake(0, 40, alertView.frame.size.width, 30)];

//    lbl.text=strMessgae;

//    [lbl setBackgroundColor:[UIColor clearColor]];

//    [lbl setTextColor:[UIColor whiteColor]];

//    [lbl setFont:[UIFont fontWithName:@"Helvetica-Bold" size:11]];

//    [lbl setTextAlignment:NSTextAlignmentCenter];

//    [alertView addSubview:lbl];

    // -- END

    

    view.userInteractionEnabled = NO;

    self.navigationController.view.userInteractionEnabled = NO;

    [view addSubview:alertView];

    

    

}

-(void)StopProgressBar:(UIView *)view

{

    //[alertProgressBar dismissWithClickedButtonIndex:0 animated:YES];

    UIView *subView=(UIView *)[view viewWithTag:505];

    

    if (subView)

        [subView removeFromSuperview];

    

    view.userInteractionEnabled = YES;

    self.navigationController.view.userInteractionEnabled = YES;

}

Using ARC file into Non-ARC project by adding compiler flag -fobjc-arc

Using Non-Arc file into ARC project by adding compiler flag -fno-objc-arc