UIAlertController with datepicker

  _pickerViewDate = [UIAlertController alertControllerWithTitle:@"" message:@"" preferredStyle:UIAlertControllerStyleActionSheet];
        
  _theDatePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0.0, 44.0, 0,0)];
  _theDatePicker.datePickerMode = UIDatePickerModeDate;
//  [_theDatePicker setBackgroundColor:[UIColor whiteColor]];
        
  _pickerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 144)];
  _pickerToolbar.barStyle=UIBarStyleBlackOpaque;
  [_pickerToolbar setBackgroundImage:[UIImage imageWithColor:[[ADVThemeManager sharedTheme] getColor:@"primary"] width:1 height:1] forToolbarPosition:UIBarPositionAny barMetrics:UIBarMetricsDefault];
  [_pickerToolbar sizeToFit];
  NSMutableArray *barItems = [[NSMutableArray alloc] init];
        
  UIBarButtonItem *cancelBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(DatePickerDoneClick:)];
  cancelBtn.tag = 101;
  UIBarButtonItem *uncheckBtn = [[UIBarButtonItem alloc] initWithTitle:@"Uncheck" style:UIBarButtonItemStyleBordered target:self action:@selector(DatePickerDoneClick:)];
  uncheckBtn.tag = 102;
  UIBarButtonItem *flexibleSpaceLeft = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
  UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(DatePickerDoneClick:)];
  doneBtn.tag = 103;
        
  [barItems addObject:cancelBtn];
  [barItems addObject:uncheckBtn];
  [barItems addObject:flexibleSpaceLeft];
  [barItems addObject:doneBtn];
        
  [_pickerToolbar setItems:barItems animated:YES];
  [_pickerViewDate.view addSubview:_pickerToolbar];
  [_pickerViewDate.view addSubview:_theDatePicker];
    
  [_pickerViewDate.view setBackgroundColor:[UIColor redColor]];
//  [_pickerViewDate.view setFrame:CGRectMake(-10, -40, self.view.frame.size.width, 10)];
  [_pickerViewDate.view setBounds:CGRectMake(7, 200, self.view.frame.size.width, 200)];
  [self presentViewController:_pickerViewDate animated:YES completion:nil];