feat:update demo

demo/src/RefreshableDemo.ts

@@ -97,7 +97,7 @@ class RefreshableDemo extends Panel {
                 }),
             ]).apply({
                 layoutConfig: layoutConfig().atmost().h(LayoutSpec.WRAP_CONTENT),
-                gravity: gravity().center(),
+                gravity: gravity().centerX(),
                 space: 10,
             } as IVLayout))
         }).apply({

demo/src/utils.ts

@@ -38,7 +38,7 @@ export function boxStr(str: string, idx = 0) {
 
 export function title(str: string) {
     return text({
-        text: "Network Demo",
+        text: str,
         layoutConfig: layoutConfig().w(LayoutSpec.AT_MOST),
         textSize: 30,
         textColor: Color.WHITE,