expected tuple struct or tuple variant, found struct variant `KbKey::Character`

Author: vimyangCreated Jun 24, 2024Updated Jul 1, 2024

When I was using druid version 0.7.0, the code worked fine.

 [dependencies]
 druid = "0.7.0"
 reqwest = { version = "0.11", features = ["blocking"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"

But when I modify my 0.8.3, I get an error that has nothing to do with my code, as follows

I tried the following operations, and it still didn’t solve the problem after re-running it.

# problem not solved
cargo clean 

# problem not solved
rm -rf ~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/druid-shell-0.8.3

Thanks ~

run command

cargo run --bin radio

the code

use druid::widget::{Flex, Label, RadioGroup};
use druid::{AppLauncher, Data, Lens, Widget, WidgetExt, WindowDesc};

#[derive(Clone, Data, Lens)]
struct AppData {
    choice: String,
}

fn build_ui() -> impl Widget<AppData> {
    let choices = vec![
        ("Option 1".to_string(), "Value 1".to_string()),
        ("Option 2".to_string(), "Value 2".to_string()),
        ("Option 3".to_string(), "Value 3".to_string()),
    ];
    let radio = RadioGroup::new(choices).lens(AppData::choice);

    let label = Label::new(|data: &AppData, _env: &druid::Env| {
        format!("You selected: {}", data.choice)
    });

    Flex::column()
        .with_child(radio)
        .with_child(label)
}

fn main() {
    let main_window = WindowDesc::new(build_ui)
        .title("RadioGroup Example")
        .window_size((300.0, 200.0));

    let data = AppData { choice: "Value 1".to_string() };

    AppLauncher::with_window(main_window)
        .use_simple_logger()
        .launch(data)
        .expect("Failed to launch application");
}

Source: linebender/druid

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