pub fn launchBlocking<T>(
work: impl FnOnce() -> T + Send + 'static,
on_ui: impl FnOnce(Result<T, BlockingError>) + 'static,
) -> Result<TaskHandle, BlockingError>where
T: Send + 'static,Expand description
Starts blocking work and delivers its result on the current runtime’s UI
thread. A full queue waits asynchronously inside the runtime-owned task.
Execution errors are delivered to on_ui; only a missing runtime is returned
immediately without invoking the callback.
The runtime owns the returned task until completion. Calling its cancel
method, or dropping the runtime, cancels waiting work and the callback.
For screen ownership, prefer rememberCoroutineScope().launch with
withBlocking. Without a live runtime this returns NoRuntime.