Run Iris examples on desktop and Android

examples/task/lib.rs

@@ -0,0 +1,21 @@
+use iris::prelude::*;
+use std::time::Duration;
+
+pub(crate) fn build<Rsc: HasEvents + HasTasks>(rsc: &mut Rsc, ui_state: &mut impl HasRoot<Rsc>)
+where
+    Rsc::State: FocusHost,
+{
+    let rect = rect(PaintId::RED).add(rsc);
+    rect.task_on(CursorSense::click(), async move |mut ctx| {
+        iris::task::sleep(Duration::from_secs(1)).await;
+        ctx.update(move |_, rsc| {
+            let rect = rect(rsc);
+            if rect.is_paint(&PaintId::RED) {
+                rect.set_paint(PaintId::BLUE);
+            } else {
+                rect.set_paint(PaintId::RED);
+            }
+        });
+    })
+    .set_root(rsc, ui_state);
+}