下拉刷新

lib/page/device/device_manage_page.dart

@@ -3,7 +3,9 @@ import 'package:deus_app/common/style/gsy_style.dart';
 import 'package:deus_app/common/utils/ConstantString.dart';
 import 'package:deus_app/common/utils/ToastUtils.dart';
 import 'package:deus_app/widget/MyDrawer.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
+import 'package:pull_to_refresh/pull_to_refresh.dart';
 
 class DeviceManagePage extends StatefulWidget {
   static var routeName = '/DeviceManagePage';
@@ -19,25 +21,46 @@ class DeviceManagePage extends StatefulWidget {
 class _DeviceManage extends State<DeviceManagePage> {
   String deviceNum = "0";
   final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
+  RefreshController _refreshController =
+      RefreshController(initialRefresh: false);
+
+  void _onRefresh() async {
+    // monitor network fetch
+    await Future.delayed(Duration(milliseconds: 1000));
+    // if failed,use refreshFailed()
+    _refreshController.refreshCompleted();
+  }
+
+  void _onLoading() async {
+    // monitor network fetch
+    await Future.delayed(Duration(milliseconds: 1000));
+    // if failed,use loadFailed(),if no data return,use LoadNodata()
+    // items.add((items.length+1).toString());
+    if (mounted) setState(() {});
+    _refreshController.loadComplete();
+  }
 
   @override
   Widget build(BuildContext contexts) {
     return Scaffold(
       key: _scaffoldKey,
       appBar: TitleBar().drawAppBar(ConstantString.deviceManageText, () {
-            _scaffoldKey.currentState?.openEndDrawer();
+        _scaffoldKey.currentState?.openEndDrawer();
       }),
       backgroundColor: const Color(0xfff2f2f2),
-      endDrawer: MyDrawer(callback: (index, str){
-        showToast(str);
-      },), //抽屉
+      endDrawer: MyDrawer(
+        callback: (index, str) {
+          showToast(str);
+        },
+      ),
+      //抽屉
       body: Column(
         children: [
           SizedBox(
             height: 10,
           ),
           Row(
-            mainAxisAlignment:MainAxisAlignment.start,
+            mainAxisAlignment: MainAxisAlignment.start,
             children: [
               SizedBox(
                 width: 15,
@@ -48,7 +71,33 @@ class _DeviceManage extends State<DeviceManagePage> {
             ],
           ),
           Expanded(
-              child: Container(
+              child: SmartRefresher(
+            enablePullDown: true,
+            enablePullUp: true,
+            header: WaterDropHeader(),
+            footer: CustomFooter(
+              builder: (BuildContext context, LoadStatus? mode) {
+                Widget body;
+                if (mode == LoadStatus.idle) {
+                  body = Text("上拉加载");
+                } else if (mode == LoadStatus.loading) {
+                  body = CupertinoActivityIndicator();
+                } else if (mode == LoadStatus.failed) {
+                  body = Text("加载失败！点击重试！");
+                } else if (mode == LoadStatus.canLoading) {
+                  body = Text("松手,加载更多!");
+                } else {
+                  body = Text("没有更多数据了!");
+                }
+                return Container(
+                  height: 55.0,
+                  child: Center(child: body),
+                );
+              },
+            ),
+            controller: _refreshController,
+            onRefresh: _onRefresh,
+            onLoading: _onLoading,
             child: ListView.builder(
               itemCount: 20,
               itemBuilder: (context, index) {

pubspec.yaml

@@ -57,6 +57,7 @@ dev_dependencies:
   build_runner: ^1.1.3
   dio: ^4.0.4
   synchronized: ^3.0.1 #用于同步处理数据存储
+  pull_to_refresh: ^2.0.0
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec