ios palette

Here I am passing the values to the array.
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *touch = [touches anyObject];
    CGPoint lastPoint = [touch locationInView:self.ColorPickerImageView];
    UIColor *color = [self getPixelColorAtLocation:lastPoint];
    if ([touch tapCount] == 2) {
        //self.imageView.image = nil;
         arrayOFPalette = [[NSMutableArray alloc] init];
        if (self.imgView1.backgroundColor == nil)
        {
            self.lbl1.text = hexsTring;
            self.imgView1.backgroundColor = color;

        }
        else if
            (self.imgView2.backgroundColor == nil)
        {
            self.lbl2.text = hexsTring;
            self.imgView2.backgroundColor = color;

        }
        else if  (self.imgView3.backgroundColor == nil)
        {
            self.lbl3.text = hexsTring;
            self.imgView3.backgroundColor = color;
        }
        else if (self.imgView4.backgroundColor == nil)
        {
            self.lbl4.text = hexsTring;
            self.imgView4.backgroundColor = color;

        }
        else if (self.imgView5.backgroundColor == nil)
        {
            self.lbl5.text = hexsTring;
            self.imgView5.backgroundColor = color;

        }
        else
        {
            [self showErrorAlert];
        }

        [arrayOFPalette addObject:self.lbl1.text];
        [arrayOFPalette addObject:self.lbl2.text];
        [arrayOFPalette addObject:self.lbl3.text];
        [arrayOFPalette addObject:self.lbl4.text];
        [arrayOFPalette addObject:self.lbl5.text];






        return;
    }
      NSLog(@"%@",arrayOFPalette);

      NSLog(@"color is : %@",color);
      NSLog(@"%f",lastPoint.x);
      NSLog(@"%f",lastPoint.y);

      self.selectedColorView.backgroundColor = color;

}

And here is the button event.
- (IBAction)btnSearchPalette:(id)sender {
    if (arrayOFPalette != nil) {
//        int myCount = 0;
//        while (myCount <= arrayOFPalette.count) {
//            NSLog(@"iteration %d",myCount);
//            myCount++;
//            NSString *indexValue = [arrayOFPalette objectAtIndex:0];
//            NSLog(@"index 0 have %@",indexValue);
//            if ([arrayOFPalette objectAtIndex:1] == [NSNull null])
//            {
//                NSLog(@"index is null");
//            }else{
//                NSLog(@"has value");
//            }
//        }
        NSURL *url = [NSURL URLWithString:@"http://localhost/ColorPicker/search.php"];

        NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];

        NSString *messageBody = [NSString stringWithFormat:@"color=%@",arrayOFPalette];
                 // if I just send a single value e.g; #ff88bc the api respond fine
        NSData *postData = [messageBody dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];

        NSString *msgLength = [NSString stringWithFormat:@"%d", [postData length]];

        [theRequest setHTTPMethod:@"POST"];

        [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"];

        [theRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];

        [theRequest setHTTPBody:postData];    //[color dataUsingEncoding:NSUTF8StringEncoding]];

        NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];

        if(theConnection)

        {
            NSLog(@"Connection Successful");

            NSURLResponse *response;

            NSError *err;

            NSData *responseData = [NSURLConnection sendSynchronousRequest:theRequest returningResponse:&response error:&err];

           // NSLog(@"responseData here is: %@", responseData);

            NSString *resPonseGot = [[NSString alloc]initWithData:responseData encoding:NSUTF8StringEncoding];

            NSLog(@"Response ==> %@", resPonseGot);

            NSString *str = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];


            imgURLArray =[str componentsSeparatedByString:@","];


    }
        // here I am passing result array containing url of images to the other array and sending to the gallery so that they can be viewed

        ViewController *customImageGallery = [[ViewController alloc] init];
        customImageGallery.imgArrayfromURL = imgURLArray;
        if (imgURLArray != nil) {
            [self.navigationController pushViewController:customImageGallery animated:YES];
        }
        else{
            [self alertStatus:@"Sorry No Matching Found" :@"Sorry!"];
        }


    }
    else{
        UIAlertView *ArrayAlert = [[UIAlertView alloc] initWithTitle:@"Empty Palette"
                                                           message:@"Please Select Some Colors" delegate:nil
                                                 cancelButtonTitle:nil
                                                 otherButtonTitles:@"OK", nil];
        [ArrayAlert show];

    }
}