Show pick_list doc example in multiple places

widget/src/helpers.rs

@@ -924,7 +924,68 @@ where
 
 /// Creates a new [`PickList`].
 ///
-/// [`PickList`]: crate::PickList
+/// Pick lists display a dropdown list of selectable options.
+///
+/// # Example
+/// ```no_run
+/// # mod iced { pub mod widget { pub use iced_widget::*; } pub use iced_widget::Renderer; pub use iced_widget::core::*; }
+/// # pub type Element<'a, Message> = iced_widget::core::Element<'a, Message, iced_widget::Theme, iced_widget::Renderer>;
+/// #
+/// use iced::widget::pick_list;
+///
+/// struct State {
+///    favorite: Option<Fruit>,
+/// }
+///
+/// #[derive(Debug, Clone, Copy, PartialEq, Eq)]
+/// enum Fruit {
+///     Apple,
+///     Orange,
+///     Strawberry,
+///     Tomato,
+/// }
+///
+/// #[derive(Debug, Clone)]
+/// enum Message {
+///     FruitSelected(Fruit),
+/// }
+///
+/// fn view(state: &State) -> Element<'_, Message> {
+///     let fruits = [
+///         Fruit::Apple,
+///         Fruit::Orange,
+///         Fruit::Strawberry,
+///         Fruit::Tomato,
+///     ];
+///
+///     pick_list(
+///         fruits,
+///         state.favorite,
+///         Message::FruitSelected,
+///     )
+///     .placeholder("Select your favorite fruit...")
+///     .into()
+/// }
+///
+/// fn update(state: &mut State, message: Message) {
+///     match message {
+///         Message::FruitSelected(fruit) => {
+///             state.favorite = Some(fruit);
+///         }
+///     }
+/// }
+///
+/// impl std::fmt::Display for Fruit {
+///     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+///         f.write_str(match self {
+///             Self::Apple => "Apple",
+///             Self::Orange => "Orange",
+///             Self::Strawberry => "Strawberry",
+///             Self::Tomato => "Tomato",
+///         })
+///     }
+/// }
+/// ```
 pub fn pick_list<'a, T, L, V, Message, Theme, Renderer>(
     options: L,
     selected: Option<V>,