棉花app新增页面

lib/pages/device_control/Empty.dart

@@ -0,0 +1,54 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:vbvs_app/common/util/FitTool.dart';
+
+class Empty extends StatefulWidget {
+  Empty({super.key});
+
+  @override
+  State<Empty> createState() => _EmptyState();
+}
+
+class _EmptyState extends State<Empty> {
+  String empty = "";
+  bool closepage = false;
+
+  @override
+  void initState() {
+    // TODO: implement initState
+    super.initState();
+    Timer(const Duration(milliseconds: 1200), () {
+      if (empty.isEmpty && closepage == false) {
+        setState(() {
+          empty = "assets/images/new_empty.png";
+        });
+      }
+    });
+  }
+
+  @override
+  void dispose() {
+    // TODO: implement dispose
+    super.dispose();
+    closepage = true;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (empty.isEmpty) {
+      return Container();
+    } else {
+      return Container(
+        width: double.infinity,
+        margin: EdgeInsets.only(top: MediaQuery.of(context).size.height * 0.3),
+        alignment: Alignment.center,
+        child: Container(
+          width: 164.rpx,
+          height: 230.rpx,
+          child: Image.asset(empty),
+        ),
+      );
+    }
+  }
+}