Using camera / gallery of device

 UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];

        

//camera selection

if(buttonIndex == 0){

if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){

                

imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;

imagePicker.delegate = self;

                

[self presentViewController:imagePicker animated:YES completion:nil];                

}

else {

                

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Alert" message:NSLocalizedString(@"DeviceItem", @"") delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];

                

[alert show];

}

}       

else if(buttonIndex == 1) {   //gallery selection

            

imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

            

   imagePicker.delegate=self;

   [self presentViewController:imagePicker animated:YES completion:nil];

}