React-Native Android打包

Android打包APK

創建簽名：

進入到android/app目錄下打開命令行執行如下命令：

keytool -genkey -v -keystore xiaoqi-release-key.keystore -alias xiaoqi-key-alias -keyalg RSA -keysize 2048 -validity 10000

根據步驟操作，記住密碼，打包的時候會用到
 

1：根據截圖修改android/app/build.gradle文件

1：
    aaptOptions.cruncherEnabled = false
    aaptOptions.useNewCruncher = false

2：
    signingConfigs {
        release {
        storeFile file(MYAPP_RELEASE_STORE_FILE)
        storePassword MYAPP_RELEASE_STORE_PASSWORD
        keyAlias MYAPP_RELEASE_KEY_ALIAS
        keyPassword MYAPP_RELEASE_KEY_PASSWORD
        }}
3：
    signingConfig signingConfigs.release

2：根據截圖修改android/gradle.properties文件

MYAPP_RELEASE_STORE_FILE=my-release-key.keystore

MYAPP_RELEASE_KEY_ALIAS=my-key-alias

MYAPP_RELEASE_STORE_PASSWORD=password

MYAPP_RELEASE_KEY_PASSWORD=password

3：終端cd 到android目錄下.執行命令

gradlew assembleRelease

等待打包結束即可，成功打好了.在項目的android/app/build/outputs/apk下可見剛纔打好的apk包

如果提示：Execution failed for task ':react-native-exit-app:verifyReleaseResources'.

android/app/build.gradle中添加
subprojects {
  project.configurations.all {
      afterEvaluate {project ->
        if (project.hasProperty("android")) {
            android {
                compileSdkVersion 26
                buildToolsVersion '26.0.2'
            }
        }
    }
     resolutionStrategy.eachDependency { details ->
        if (details.requested.group == 'com.android.support'
              && !details.requested.name.contains('multidex') ) {
           details.useVersion "26.0.2"
        }
     }
  }
}