cosmic::widget

Module combo_box

source
Expand description

Combo boxes display a dropdown list of searchable and selectable options.

§Example

use iced::widget::combo_box;

struct State {
   fruits: combo_box::State<Fruit>,
   favorite: Option<Fruit>,
}

#[derive(Debug, Clone)]
enum Fruit {
    Apple,
    Orange,
    Strawberry,
    Tomato,
}

#[derive(Debug, Clone)]
enum Message {
    FruitSelected(Fruit),
}

fn view(state: &State) -> Element<'_, Message> {
    combo_box(
        &state.fruits,
        "Select your favorite fruit...",
        state.favorite.as_ref(),
        Message::FruitSelected
    )
    .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",
        })
    }
}

Structs§

  • ComboBox
    A widget for searching and selecting a single value from a list of options.
  • State
    The local state of a ComboBox.

Traits§