sp的本地存储功能

ZKXSparke · Jan 18, 2019 · 9b15b40 · 9b15b40
1 parent cc5a552
commit 9b15b40
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Showing 3 changed files with 37 additions and 0 deletions.
diff --git a/lib/http/HttpPage.dart b/lib/http/HttpPage.dart
@@ -1,8 +1,10 @@
 import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_ydd/main/MainPage.dart';
 import 'package:flutter_ydd/module/news.dart';
 import 'package:flutter_ydd/module/user_detail.dart';
 import 'package:flutter_ydd/utils/HttpGo.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 class HttpPage extends StatefulWidget {
   @override
@@ -12,6 +14,22 @@ class HttpPage extends StatefulWidget {
 class _HttpPageState extends State<HttpPage> {
   var httpContent = '显示网络数据';
 
+  @override
+  void initState() {
+    // TODO: implement initState
+    getValueForMainPage();
+    super.initState();
+  }
+
+  getValueForMainPage() async {
+    //测试sp的存储
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    String a = await prefs.getString(MainPageState.STRING_KEY);
+    int b = await prefs.getInt(MainPageState.INT_KEY);
+    bool c = await prefs.getBool(MainPageState.BOOL_KEY);
+    double d = await prefs.getDouble(MainPageState.DOUBLE_KEY);
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(

diff --git a/lib/main/MainPage.dart b/lib/main/MainPage.dart
@@ -4,6 +4,7 @@ import 'package:flutter_ydd/http/HttpPage.dart';
 import 'package:flutter_ydd/info/NewsPage.dart';
 import 'package:flutter_ydd/personal/PersonalPage.dart';
 import 'package:flutter_ydd/type/TypePage.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 class MainPageWidget extends StatefulWidget {
   @override
@@ -19,6 +20,12 @@ class MainPageState extends State<MainPageWidget> {
 
   var _pageList;
 
+  static const STRING_KEY = 'string';
+  static const BOOL_KEY = 'bool';
+  static const INT_KEY = 'int';
+  static const DOUBLE_KEY = 'double';
+  static const LIST_KEY = 'list';
+
   Image getTabIcon(int curIndex) {
     if (curIndex == _tabIndex) {
       return tabImages[curIndex][1];
@@ -43,9 +50,20 @@ class MainPageState extends State<MainPageWidget> {
   @override
   void initState() {
     initData(); //初始化数据
+    setSp();
     super.initState();
   }
 
+  setSp() async {
+    var list = List<String>.generate(5, (i) => 'item$i');
+    SharedPreferences sp = await SharedPreferences.getInstance();
+    sp.setString(STRING_KEY, '我是从MainPage存的数据');
+    sp.setBool(BOOL_KEY, true);
+    sp.setInt(INT_KEY, 1);
+    sp.setDouble(DOUBLE_KEY, 231.111);
+    sp.setStringList(LIST_KEY, list);
+  }
+
   void initData() {
     tabImages = [
       [

diff --git a/pubspec.yaml b/pubspec.yaml
@@ -25,6 +25,7 @@ dependencies:
   fluttertoast: ^2.2.6
   json_serializable: ^2.0.0 # 解析
   build_runner: ^1.1.2    # 解析
+  shared_preferences: ^0.4.2
 
 dev_dependencies:
   flutter_test: