Upload image to web server - ios

Question

I want to upload UIImage to web site.I have implement some code.I have selected image from first page and upload on second page.where in this -----[body appendData:[NSData dataWithData:_imgData]];---- the _imgData becomes nil. enter code hereI have already written some code, but I don't know Where is my mistake.
My Code is:
-(void)ImgaeCropped:(UIImage *)image
{
_imageView.image=image;
Register2 *reg2=[self.storyboard instantiateViewControllerWithIdentifier:#"Register2"];
// reg2.self.selected_image=_imageView.image;
reg2.imgData=imageData;
picture_view.hidden=YES;
}
- (void)imagePickerController:(UIImagePickerController *) Picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
#try {
// transparent_view.hidden=YES;
UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
[indicator startAnimating];
indicator.frame=CGRectMake(0, 0, 10, 10);
indicator.center = CGPointMake(CGRectGetMidX(_imageView.bounds), CGRectGetMidY(_imageView.bounds));
[_imageView addSubview:indicator];
[indicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleGray];
[indicator setColor:[UIColor grayColor]];
[indicator startAnimating];
[self dismissViewControllerAnimated:YES completion:^ {
[indicator removeFromSuperview];
[indicator stopAnimating];
CropViewController *crop=[self.storyboard instantiateViewControllerWithIdentifier:#"CropViewController"];
crop.cropDelegate=self;
crop.image=[info objectForKey:UIImagePickerControllerOriginalImage];
// UIImageView *imgvUserImage = [[UIImageView alloc]init];
UIImage *imgvUserImage= [info objectForKey:UIImagePickerControllerOriginalImage];
imageData=UIImageJPEGRepresentation(imgvUserImage, 0.9);
[self presentViewController:crop animated:YES completion:nil];
}];
}
#catch (NSException *exception) {
// UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Finish Picking" message:exception.description delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
// [alert show];
}
#finally {
// UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Finish Picking" message:#"Final" delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
// [alert show];
}
}
And the image selection code is ---------------
-(void)ImgaeCropped:(UIImage *)image
{
_imageView.image=image;
Register2 *reg2=[self.storyboard instantiateViewControllerWithIdentifier:#"Register2"];
// reg2.self.selected_image=_imageView.image;
reg2.imgData=imageData;
picture_view.hidden=YES;
}
- (void)imagePickerController:(UIImagePickerController *) Picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
#try {
// transparent_view.hidden=YES;
UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
[indicator startAnimating];
indicator.frame=CGRectMake(0, 0, 10, 10);
indicator.center = CGPointMake(CGRectGetMidX(_imageView.bounds), CGRectGetMidY(_imageView.bounds));
[_imageView addSubview:indicator];
[indicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleGray];
[indicator setColor:[UIColor grayColor]];
[indicator startAnimating];
[self dismissViewControllerAnimated:YES completion:^ {
[indicator removeFromSuperview];
[indicator stopAnimating];
CropViewController *crop=[self.storyboard instantiateViewControllerWithIdentifier:#"CropViewController"];
crop.cropDelegate=self;
crop.image=[info objectForKey:UIImagePickerControllerOriginalImage];
// UIImageView *imgvUserImage = [[UIImageView alloc]init];
UIImage *imgvUserImage= [info objectForKey:UIImagePickerControllerOriginalImage];
imageData=UIImageJPEGRepresentation(imgvUserImage, 0.9);
[self presentViewController:crop animated:YES completion:nil];
}];
}
#catch (NSException *exception) {
// UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Finish Picking" message:exception.description delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
// [alert show];
}
#finally {
// UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Finish Picking" message:#"Final" delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
// [alert show];
}
}

Answer 1

add the AFNetworking to your project
https://github.com/AFNetworking/AFNetworking
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
hud.mode = MBProgressHUDModeIndeterminate;
hud.labelText = #"Loading";
NSMutableDictionary* data=[NSMutableDictionary new];
//if you want to add parameters with the image
NSData *imageData = UIImageJPEGRepresentation(selectedImage, 0.5);
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
AFJSONResponseSerializer *responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];
manager.responseSerializer = responseSerializer;
AFHTTPRequestOperation *op = [manager POST:#"http://www.pickkup.com/webservice/uploadpictureios.php" parameters:data constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
[formData appendPartWithFileData:imageData name:#"image" fileName:#"photo.jpg" mimeType:#"image/jpeg"];
} success:^(AFHTTPRequestOperation *operation, id responseObject) {
[hud hide:YES];
NSLog(#"Success: %# ***** %#", operation.responseString, responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
[hud hide:YES];
NSLog(#"Error: %# ***** %#", operation.responseString, error);
}];
[op start];