add structure

2020-05-29 07:45:27 +06:30
parent 4c851d9971
commit bad27ba5c4
272 changed files with 36065 additions and 174 deletions
--- a/lib/pages/test_list.dart
+++ b/lib/pages/test_list.dart
@@ -0,0 +1,157 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:fcs/model/test_model.dart';
+import 'package:fcs/theme/theme.dart';
+import 'package:fcs/vo/popup_menu.dart';
+
+class TestList extends StatefulWidget {
+  @override
+  _TestListState createState() => _TestListState();
+}
+
+class _TestListState extends State<TestList> {
+  bool isLoading = false;
+
+  @override
+  void initState() {
+    super.initState();
+    var testModel = Provider.of<TestModel>(context, listen: false);
+    testModel.initData();
+    print("List initState!");
+  }
+
+  @override
+  void dispose() {
+    print("List Dispose!");
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    var testModel = Provider.of<TestModel>(context);
+
+    return Scaffold(
+      appBar: AppBar(
+        backgroundColor: primaryColor,
+        title: Text("Tests"),
+        actions: <Widget>[
+          PopupMenuButton<PopupMenu>(
+              elevation: 3.2,
+              onSelected: (s) {
+                if (s.index == 0) Provider.of<TestModel>(context).populate();
+                if (s.index == 1) Provider.of<TestModel>(context).add();
+                if (s.index == 2) Provider.of<TestModel>(context).update();
+                if (s.index == 3) Provider.of<TestModel>(context).remove();
+              },
+              itemBuilder: (BuildContext context) {
+                return [
+                  PopupMenuItem<PopupMenu>(
+                    value: PopupMenu(status: "Populate", index: 0),
+                    child: Text("Populate"),
+                  ),
+                  PopupMenuItem<PopupMenu>(
+                    value: PopupMenu(status: "Add", index: 1),
+                    child: Text("Add"),
+                  ),
+                  PopupMenuItem<PopupMenu>(
+                    value: PopupMenu(status: "Update", index: 2),
+                    child: Text("Update"),
+                  ),
+                  PopupMenuItem<PopupMenu>(
+                    value: PopupMenu(status: "Delete", index: 3),
+                    child: Text("Delete"),
+                  )
+                ];
+              })
+        ],
+      ),
+      body: Column(
+        children: <Widget>[
+          Expanded(
+            child: NotificationListener<ScrollNotification>(
+              onNotification: (ScrollNotification scrollInfo) {
+                if (!isLoading &&
+                    scrollInfo.metrics.pixels ==
+                        scrollInfo.metrics.maxScrollExtent &&
+                    !testModel.ended) {
+                  // start loading data
+                  _loadData(testModel);
+                }
+                return null;
+              },
+              child: ListView.builder(
+                  padding: EdgeInsets.only(left: 15, right: 15, top: 15),
+                  shrinkWrap: true,
+                  itemCount: testModel.ended
+                      ? testModel.tests.length + 1
+                      : testModel.tests.length,
+                  itemBuilder: (BuildContext context, int index) {
+                    return (testModel.ended && index == testModel.tests.length)
+                        ? Center(child: Text("No more item"))
+                        : buildCard(testModel.tests[index], index + 1);
+                  }),
+            ),
+          ),
+          Container(
+            height: isLoading ? 50.0 : 0,
+            color: Colors.transparent,
+            child: Center(
+              child: new CircularProgressIndicator(),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Card buildCard(Test test, int index) {
+    return Card(
+      elevation: 10,
+      color: Colors.white,
+      child: new Padding(
+        padding: const EdgeInsets.symmetric(vertical: 10.0),
+        child: new Row(
+          children: <Widget>[
+            Padding(
+              padding: const EdgeInsets.all(8.0),
+              child: Icon(
+                Icons.account_circle,
+                color: primaryColor,
+                size: 55,
+              ),
+            ),
+            Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+              children: <Widget>[
+                new Text(
+                  "$index - ${test.name}",
+                  style: new TextStyle(fontSize: 17.0, color: Colors.black),
+                ),
+                new Text(
+                  test.age.toString(),
+                  style: new TextStyle(fontSize: 12.0, color: Colors.black),
+                ),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  _loadData(TestModel testModel) {
+    setState(() {
+      isLoading = true;
+    });
+
+    Timer(Duration(seconds: 1), () {
+      testModel.load();
+      setState(() {
+        isLoading = false;
+      });
+    });
+  }
+}