add a dynamic asset example

examples/dynamic_asset.rs

@@ -0,0 +1,29 @@
+use dioxus::prelude::*;
+use dioxus_desktop::wry::http::Response;
+use dioxus_desktop::{use_asset_handler, AssetRequest};
+use std::path::Path;
+
+fn main() {
+    dioxus_desktop::launch(app);
+}
+
+fn app(cx: Scope) -> Element {
+    use_asset_handler(cx, |request: &AssetRequest| {
+        let path = request.path().to_path_buf();
+        async move {
+            if path != Path::new("logo.png") {
+                return None;
+            }
+            let image_data: &[u8] = include_bytes!("./assets/logo.png");
+            Some(Response::new(image_data.into()))
+        }
+    });
+
+    cx.render(rsx! {
+        div {
+            img {
+                src: "logo.png"
+            }
+        }
+    })
+}