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Reference

Module - Toggler

Module-level reference for iced::widget::toggler.

Version: latest | Last updated: 2026-02-19

Module - Toggler

Authoritative source: ref/doc/iced/widget/toggler/index.html.

# Rustdoc description

Togglers let users make binary choices by toggling a switch.

# When to use

Use this module when you need the widget family and related style/state APIs grouped under iced::widget::toggler.

# Example References

  • ref/examples/custom_quad/src/main.rs
  • ref/examples/editor/src/main.rs
  • ref/examples/markdown/src/main.rs
  • ref/examples/qr_code/src/main.rs
  • ref/examples/styling/src/main.rs
  • ref/examples/tour/src/main.rs

# Inline Examples (from rustdoc)

rust
use iced::widget::toggler;

struct State {
   is_checked: bool,
}

enum Message {
    TogglerToggled(bool),
}

fn view(state: &State) -> Element<'_, Message> {
    toggler(state.is_checked)
        .label("Toggle me!")
        .on_toggle(Message::TogglerToggled)
        .into()
}

fn update(state: &mut State, message: Message) {
    match message {
        Message::TogglerToggled(is_checked) => {
            state.is_checked = is_checked;
        }
    }
}

# Use this when...

  • You need module-level APIs beyond the basic constructor call.
  • You want family-specific style/state traits and helper types.
  • You are building reusable widget abstractions.

# Minimal example

rust
// Start with the constructor from this module family in `view`.
// Then move to module APIs for deeper customization.

# How it works

Module docs explain the namespace that groups constructors, types, and related traits. In everyday app code, this helps you discover advanced options after basic usage works.

# Common patterns

rust
// Message flow pattern:
// widget interaction -> Message -> update -> state change -> rerender

# Gotchas / tips

  • Check this page together with its family page for complete context.
  • Verify trait bounds and associated types in rustdoc when custom styling fails.
  • Keep module imports explicit while learning.