使用android studio發布android與flutter混合開發項目

一、生成androd簽名證書

Android studio的Build > Grenerate Signed Bundle

選擇apk

點擊Create New

錄入對應的簽名信息；點擊確定

對應盤符下就會生成一個簽名文件

二、拷貝簽名到項目目錄

將簽名文件拷入項目的app目錄下

三、配置 greadle.properties

在greadle.properties中增加如下配置（對應上一步生成的簽名證書的別名，密碼）

MYAPP_RELEASE_KEY_ALIAS=android_keystore # 別名
MYAPP_RELEASE_KEY_PASSWORD=123456 # 別名密碼
MYAPP_RELEASE_STORE_PASSWORD=123456 # 證書密碼
MYAPP_RELEASE_STORE_FILE=android_keystore.jks # 證書路徑

四、配置build.gradle（Module:app）

在android下增加如下配置（注意release中配置的value一定要對應到上一步greadle.properties中配置的key,否則編譯報錯）

android {
	# 省略其他配置 ....

	 # 新增配置
    signingConfigs{
        release{
            storeFile file(MYAPP_RELEASE_STORE_FILE)
            storePassword MYAPP_RELEASE_STORE_PASSWORD
            keyAlias MYAPP_RELEASE_KEY_ALIAS
            keyPassword MYAPP_RELEASE_KEY_PASSWORD
        }
    }
    buildTypes {
        release {
         # 省略其他配置 ....
         # 新增配置
        signingConfig signingConfigs.release
        }
    }
  # 省略其他配置 ....
}

五、解決 Compatible side by side NDK version was not found.

配置完成后
使用android studio運行gradlew assembleRelease 打包發布android與flutter混合開發項目提示

D:\learnFlutter\flutter_hybrid\Flutterhybridandroid>gradlew assembleRelease

Compatible side by side NDK version was not found.
Unable to strip library 'D:\learnFlutter\flutter_hybrid\Flutterhybridandroid\app\build\intermediates\merged_native_libs\release\out\lib\arm64-v8a\libapp.so' due to missing strip tool for ABI 'ARM64_V8A'. Packaging it as is.
Unable to strip library 'D:\learnFlutter\flutter_hybrid\Flutterhybridandroid\app\build\intermediates\merged_native_libs\release\out\lib\armeabi-v7a\libflutter.so' due to missing strip tool for ABI 'ARMEABI_V7A'. Packaging it as is.
62 actionable tasks: 59 executed, 3 up-to-date

Android studio的File->Project Structure窗口下進行NDK的相關下載

等待下載完成

現在完成后會自動同步ndk路徑

點擊OK后gradle會自動同步

六、解決 Compatible side by side NDK version was not found.

有提示了另一個錯誤

Compatible side by side NDK version was not found.
Unable to strip library 'D:\learnFlutter\flutter_hybrid\Flutterhybridandroid\app\build\intermediates\merged_native_libs\release\out\lib\arm64-v8a\libapp.so' due to missing strip tool for ABI 'ARM64_V8A'. Packaging it as is.
Unable to strip library 'D:\learnFlutter\flutter_hybrid\Flutterhybridandroid\app\build\intermediates\merged_native_libs\release\out\lib\armeabi-v7a\libflutter.so' due to missing strip tool for ABI 'ARMEABI_V7A'. Packaging it as is.
62 actionable tasks: 59 executed, 3 up-to-date
D:\learnFlutter\flutter_hybrid\Flutterhybridandroid>gradlew assembleRelease
62 actionable tasks: 8 executed, 54 up-to-date

根據android官網提示進行ndk版本配置

到安裝的ndk目錄下找到souce.propertites打開
根據
在build.properties中配置ndk版本
配置完成gradle自動同步

七、最后執行 gradlew assembleRelease打包

終於沒有提到錯誤了

D:\learnFlutter\flutter_hybrid\Flutterhybridandroid>gradlew assembleRelease
62 actionable tasks: 5 executed, 57 up-to-date

在project 目錄下也看見了久違的app-release.apk

最后就可以將這個apk發到真機安裝了