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flutter发布

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用flutter发布Android app 一般需要以下步骤（不包括发布到应用商店）

  1. 将应用图标放入<app dir>/android/app/src/main/res/目录

  2. 检查<app dir>/android/app/src/main/AndroidManifest.xml，修改package，application-android:label，application-android-icon

  3. 修改<app dir>/android/app/src/main/kotlin下文件结构，并将其下MainActivity.kt第一行修改为包名

  4. 把文件 key.properties 复制到<app dir>/android目录下

  5. 修改<app dir>/android/app/build.gradle

    1. 替换

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      android{

      为

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      def keystorePropertiesFile = rootProject.file("key.properties")
      def keystoreProperties = new Properties()
      keystoreProperties.load(new FileInputStream(keystorePropertiesFile))

      android{

    2. 替换

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      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
          }
      }

      为

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      signingConfigs {
          release {
              keyAlias keystoreProperties['keyAlias']
              keyPassword keystoreProperties['keyPassword']
              storeFile file(keystoreProperties['storeFile'])
              storePassword keystoreProperties['storePassword']
          }
      }
      buildTypes {
          release {
              signingConfig signingConfigs.release
          }
      }

    3. 修改defaultConfig中applicationId

  6. 生成apk文件

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    flutter build apk --target-platform android-arm64

    文件位于<app dir>/build/app/outputs/apk/app-release.apk

未签名应用签名方式：

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jarsigner -verbose -keystore C:\Users\yzsu0\key.jks -signedjar signed.apk no_sign.apk key