public override void ViewDidLoad()
{
saveButton.TouchUpInside += SaveExpense;
// Use a picker view to select our category choices.
categoryPicker = new UIPickerView();
categoryPicker.Model = pickerData = new TextFieldPickerData(categoryText,
new[] { "Lodging", "Meal", "Transportation", "Other" });
categoryText.InputView = categoryPicker;
// Use a Toolbar to add a "Done" button to dismiss the picker.
pickerToolbar = new UIToolbar {
BarTintColor = UIColor.White,
Translucent = false,
};
doneButton = new UIBarButtonItem(UIBarButtonSystemItem.Done,
(s, e) => categoryText.ResignFirstResponder());
var flexibleSpace = new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace, null);
pickerToolbar.Items = new [] { flexibleSpace, doneButton };
pickerToolbar.SizeToFit();
categoryText.InputAccessoryView = pickerToolbar;
// Update the UI with the selected expense.
OnUpdateDetails();
}
public override void ViewDidDisappear(bool animated)
{
// Get rid of things we created manually.
categoryPicker.Dispose();
categoryPicker = null;
pickerToolbar.Dispose();
pickerToolbar = null;
doneButton.Dispose();
doneButton = null;
pickerData.Dispose();
pickerData = null;
}
