fix: ping window after virtualdom is ready

examples/heavy_compute.rs

@@ -0,0 +1,28 @@
+//! This example shows that you can place heavy work on the main thread, and then
+//!
+//! You *should* be using `tokio::spawn_blocking` instead.
+//!
+//! Your app runs in an async runtime (Tokio), so you should avoid blocking
+//! the rendering of the VirtualDom.
+//!
+//!
+
+use dioxus::prelude::*;
+
+fn main() {
+    dioxus::desktop::launch(app);
+}
+
+fn app(cx: Scope) -> Element {
+    // This is discouraged
+    std::thread::sleep(std::time::Duration::from_millis(2_000));
+
+    // This is suggested
+    tokio::task::spawn_blocking(move || {
+        std::thread::sleep(std::time::Duration::from_millis(2_000));
+    });
+
+    cx.render(rsx! {
+        div { "Hello, world!" }
+    })
+}