在 Flutter 中发布 APK（15）

• applicationId
  这在 Google Play 中的所有应用程序中必须是唯一的，因此请明智地选择名称。您的应用程序将以此名称标识，并且无法更改。
• versionCode
  这是应用程序版本代码，每次在 Google Play 上更新应用程序时都需要更新。Google Play 商店不接受使用相同版本的代码进行更新。

  例如：
  applicationId com.example.flutter_release_apk
  versionCode 1

Enter keystore password: abcd1234
Re-enter new password: abcd1234

What is your first and last name?
[Unknown]: demo demo

What is the name of your organizational unit?
[Unknown]: demo

What is the name of your organization?
[Unknown]: demo

What is the name of your City or Locality?
[Unknown]: demo

What is the name of your State or Province?
[Unknown]: demo

What is the two-letter country code for this unit?
[Unknown]: 91

Is CN=demo demo, OU=demo, O=demo, L=demo, ST=demo, C=91 correct?
[no]: yes

生成 2,048 位 RSA 密钥对和自签名证书 (SHA256withRSA)，有效期为 10,000 天
：CN=demo demo, OU=demo, O=demo, L=demo, ST=demo, C=91

输入 <alias_name> 的
密钥密码（如果与密钥库密码相同，则返回）：abcd1234

重新输入新密码：abcd1234
[Storing flutter_release_apk.jks]

所以，现在我有了我的终端打开的 flutter_release_apk.jksin 目录。

注意
安全地复制并保存此文件，因为每次需要更新应用程序时都需要它。如果您丢失了此文件，则以后将无法更新您的应用

storePassword=abcd1234
keyPassword=abcd1234
keyAlias=alias_name
storeFile=/Applications/AMPPS/www/Flutter_Demos/flutter_release_apk/flutter_release_apk.jks

保存文件。

def localProperties = new Properties()  
def localPropertiesFile = rootProject.file('local.properties')  
if (localPropertiesFile.exists()) {  
    localPropertiesFile.withReader('UTF-8') {  
        reader - > localProperties.load(reader)  
    }  
}  
def flutterRoot = localProperties.getProperty('flutter.sdk')  
if (flutterRoot == null) {  
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")  
}  
def flutterVersionCode = localProperties.getProperty('flutter.versionCode')  
if (flutterVersionCode == null) {  
    flutterVersionCode = '1'  
}  
def flutterVersionName = localProperties.getProperty('flutter.versionName')  
if (flutterVersionName == null) {  
    flutterVersionName = '1.0'  
}  
apply plugin: 'com.android.application'  
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"  
def keystoreProperiesFile = rootProject.file("key.properties")  
def keystoreProperies = new Properties()  
keystoreProperies.load(new FileInputStream(keystoreProperiesFile))  
android {  
    compileSdkVersion 28  
    lintOptions {  
        disable 'InvalidPackage'  
    }  
    defaultConfig {  
        applicationId "com.example.flutter_release_apk"  
        minSdkVersion 16  
        targetSdkVersion 28  
        versionCode flutterVersionCode.toInteger()  
        versionName flutterVersionName  
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"  
    }  
    signingConfigs {  
        release {  
            keyAlias keystoreProperies["keyAlias"]  
            keyPassword keystoreProperies["keyPassword"]  
            storeFile file(keystoreProperies["storeFile"])  
            storePassword keystoreProperies["storePassword"]  
        }  
    }  
    buildTypes {  
        release {  
            // signingConfig signingConfigs.debug  
            signingConfig signingConfigs.release  
        }  
    }  
}  
flutter {  
    source '../..'  
}  
dependencies {  
    testImplementation 'junit:junit:4.12'  
    androidTestImplementation 'com.android.support.test:runner:1.0.2'  
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'  
}