title: How to add UIDatePicker in UIAlertController in iOS8?
body: <p>I am working on a project which I had already released with iOS-7. But now as the action sheet is making problem so I am now implementing UIAlertController. Following is the code which I am using for showing UIAlertController with UIPicker.</p>
  
  <pre><code>alertController = [UIAlertController alertControllerWithTitle:@"" message:@"" preferredStyle:UIAlertControllerStyleActionSheet];
  
          UIAlertAction *alertAction = [UIAlertAction actionWithTitle:@"" style:UIAlertActionStyleDefault handler:nil];
          [alertController addAction:alertAction];
          [alertController addAction:alertAction];
          [alertController addAction:alertAction];
          [alertController addAction:alertAction];
          [pickerToolbar setFrame:CGRectMake(0, 0, self.view.frame.size.width-20, 44)];
          [alertController.view addSubview:pickerToolbar];
          [alertController.view addSubview:picker];
  
          [alertController.view setBounds:CGRectMake(0, 0, self.view.frame.size.width, 485)];
          [self presentViewController:alertController animated:YES completion:nil];
  </code></pre>
  
  <p>But I am not able to add datepicker in it. It is not working same as normal picker and the app hang. Please advice for any sample code for adding UIDatePicker in UIAlertController. Thanks in advance</p>