fix view count

src/layout/ui.rs

@@ -137,7 +137,6 @@ impl<Ctx> Ui<Ctx> {
     where
         Ctx: 'static,
     {
-        self.free();
         let mut painter = Painter::new(
             &self.widgets,
             &mut self.primitives,
@@ -152,6 +151,7 @@ impl<Ctx> Ui<Ctx> {
         for id in self.updates.drain(..) {
             painter.redraw(&id.id);
         }
+        self.free();
     }
 
     /// free any resources that don't have references anymore