flutter_app1

A new Flutter application.

Getting Started

This project is a starting point for a Flutter application.

A few resources to get you started if this is your first Flutter project:

• Lab: Write your first Flutter app
• Cookbook: Useful Flutter samples

For help getting started with Flutter, view our online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.

项目结构:

lib: 项目内容 01_counter: 简单计算器，入门案例 02_route: 路由案例 flutter_app1.iml: 项目路径配置 pubspec.yaml: 包管理依赖 question.yaml: 问题参见

安装 java 环境 java jdk 配置Android 环境变量

安装android studio 下载 android sdk 下载 dart & flutter 插件

安装flutter-sdk

运行实例

flutter run ./lib/01_counter/app.dart

打包:

首先创建 key.jks

keytool -genkey -v -keystore path/key.jks -keyalg RSA -keysize 2048 -validity

创建 key.properties

/android/key.properties

storePassword= # 创建 key.jks 时，输入的密码
keyPassword= # 同上
keyAlias=key # 昵称
storeFile=C:\Users\asus\key.jks # 生成的 key.jks 的路径

在gradle中配置签名

/android/app/build.gradle

读取签名

在 android{ …… } 配置之前，加入读取 key.properties 的代码 def keystorePropertiesFile = rootProject.file("key.properties") def keystoreProperties = new Properties() keystoreProperties.load(new FileInputStream(keystorePropertiesFile))

android {

配置签名

将

buildTypes {
    release {
        // TODO: Add your own signing config for the release build.
        // Signing with the debug keys for now, so `flutter run --release` works.
        signingConfig signingConfigs.debug
    }
}

替换为

signingConfigs {
    release {
    # 设置签名信息
        keyAlias keystoreProperties['keyAlias']
        keyPassword keystoreProperties['keyPassword']
        storeFile file(keystoreProperties['storeFile'])
        storePassword keystoreProperties['storePassword']
    }
}
buildTypes {
    release {
        signingConfig signingConfigs.release # 使用 release 配置
    }
}

进入工程根目录

运行flutter build apk (flutter build 默认会包含 --release选项).

打包好的发布APK位于/build/app/outputs/apk/app-release.apk。