[−][src]Trait iced_winit::Application
An interactive, native cross-platform application.
This trait is the main entrypoint of Iced. Once implemented, you can run
your GUI application by simply calling run
. It will run in
its own window.
An Application
can execute asynchronous actions
by returning a Command
in some of its methods.
Associated Types
type Renderer: Windowed
The renderer to use to draw the Application
.
type Message: Debug + Send
The type of messages your Application
will produce.
Required methods
fn new() -> (Self, Command<Self::Message>)
Initializes the Application
.
Here is where you should return the initial state of your app.
Additionally, you can return a Command
if you
need to perform some async action in the background on startup. This is
useful if you want to load state from a file, perform an initial HTTP
request, etc.
fn title(&self) -> String
Returns the current title of the Application
.
This title can be dynamic! The runtime will automatically update the title of your application when necessary.
fn update(&mut self, message: Self::Message) -> Command<Self::Message>
Handles a message and updates the state of the Application
.
This is where you define your update logic. All the messages, produced by either user interactions or commands, will be handled by this method.
Any Command
returned will be executed immediately in the background.
fn view(&mut self) -> Element<Self::Message, Self::Renderer>
Returns the widgets to display in the Application
.
These widgets can produce messages based on user interaction.
Provided methods
fn run(settings: Settings) where
Self: 'static,
Self: 'static,
Runs the Application
.
This method will take control of the current thread and will NOT return.
It should probably be that last thing you call in your main
function.