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Flutter1.17.x book App,使用Mobx数据管理器支持Android和iOS,使用库json_serializable、json_annotation、dio。

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Flutter book App

使用Flutter 1.17.x,如果不能运行请检查你的Flutter版本

后端使用GoLang+Mysql

安卓APK下载

安卓IOS预览

预览图

依赖库

dependencies:
  flutter:
    sdk: flutter
  mobx: 1.2.0
  flutter_mobx: 1.1.0
  shared_preferences: 0.5.3+4
  url_launcher: 5.1.2
  webview_flutter: 0.3.21
  image_cropper: 1.0.2
  image_picker: 0.6.1+4


  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.2
  flutter_svg: 0.17.4
  carousel_slider: 2.1.0
  fluro: 1.6.3
  provider: 4.1.2
  dio: 3.0.9
  photo_view: 0.9.2
  json_annotation: 3.0.1

dev_dependencies:
  flutter_test:
    sdk: flutter
  build_runner: 1.10.0
  mobx_codegen: 1.1.0
  json_serializable: 3.3.0
  flutter_easyrefresh: 2.0.4

Flutter版本

Flutter 1.17.1 • channel stable • https://github.com/flutter/flutter.git
Framework • revision f7a6a7906b (3 days ago) • 2020-05-12 18:39:00 -0700
Engine • revision 6bc433c6b6
Tools • Dart 2.8.2

MobxJSON序列化构建

flutter packages pub run build_runner build
flutter packages pub run build_runner watch
flutter packages pub run build_runner watch --delete-conflicting-outputs
flutter packages pub run build_runner clean

运行

Run flutter packages pub run build_runner build构建mobx,成功以后启动mobx监听

Run flutter packages pub run build_runner watch,在你修改了store以后会自动刷新。

Mobx踩坑

获取store的方法是build方法使用Provider.of<HomeStore>(context)可以得到对应的store,这样虽然我们可以得到store但是在build方法里面会导致我们在页面跳转的时候或者切换页面的时候执行重新请求数据,我们想要的不是这个,而是下拉刷新来获取新的数据。如果在build里面发送请求会出现的用户滑动到某个位置回来以后数据重新请求导致重新构建。查看performance控制台你会发现内部的组件在疯狂的rebuild,为了数据能够共享还是在initState去发送请求,具体代码如下:

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    Future.delayed(Duration.zero, () {
      // 获取对应的store
      homeStore = Provider.of<HomeStore>(this.context, listen: false);
      // 发送请求
      homeStore.getData();
    });
  }

错误信息

我使用安卓8.0解决了这个问题

Error connecting to the service protocol: HttpException: Connection closed before full header was received, uri = http://127.0.0.1:50626/DWu3_eY6i8s=/ws

配置key.properties

错误原因:由于配置了安卓发布的秘钥提交的时候忽略了,需要自行去配置。

错误信息

* What went wrong:
A problem occurred evaluating project ':app'.
> D:\project\flutter_book\android\key.properties

<app dir>/android/目录下,创建一个key.properties文件<app dir>代表工程的根目录,在key.properties写入

复制粘贴即可,如果需要打包发布APP需要配置以下信息,而且要生成key.jks文件,这里只是让项目可以运行,如果需要发布详细请看https://flutter.dev/docs/deployment/android

storePassword=<password from previous step>
keyPassword=<password from previous step>
keyAlias=key
storeFile=<location of the key store file, e.g. /Users/<user name>/key.jks>
storePassword    keystore 密码
keyPassword      key密码
keyAlias         key别名
storeFile        .jks文件路径

解决正式版发布不能联网问题

修改android/app/src/main/AndroidManifest.xml,新增以下权限

<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.INTERNET"/>

微信SDK配置

android/build.gradle

buildscript {
    ext.kotlin_version = '1.3.31'
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}
android/gradle/wrapper/gradle-wrapper.properties

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Flutter1.17.x book App,使用Mobx数据管理器支持Android和iOS,使用库json_serializable、json_annotation、dio。

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