【ReactNative】Mac下分分钟打包 Android apk
时间：2016-11-20 09:17:07地址：https://github.com/zhongxia245/blog/issues/52
Mac 下 ReactNative如何打包构建Android apk 的应用。该文章还差一个 打包发布到各个平台的教程
总结
[*]打包 jsbundle代码
[*]生成签名
[*]添加签名到app中
[*]打包成apk（打包前也可以先运行安装在手机上测试）
把JS代码，打包成 index.android.jsbundle
参考文章：ReactNative打离线包-android篇
react-native bundle --entry-file demo/index.js --bundle-output ./android/app/src/main/assets/index.android.jsbundle --platform android --assets-dest ./android/app/src/main/res/ --dev false
打包APK
《官网打包APK教程》
一、操作步骤：
1. 生成签名
生成一个有效期10000天的证书，证书为： my-release-key.keystore
keytool -genkey -v -keystore my-release-key.keystore -alias my-key-alias -keyalg RSA -keysize 2048 -validity 10000
不要把证书提交到版本控制系统
Note: Remember to keep your keystore file private and never commit it to version control.
2. 配置打包时的签名
把 证书复制到 android/app 目录下
Edit the file ~/.gradle/gradle.properties and add the following (replace ***** with the correct keystore password, alias and key password)
在 gradle.properties 里面添加以下配置
gradle.properties 文件是在 android的根目录下。 官网上的文件位置是错误的。（或者说，我理解错误）
MYAPP_RELEASE_STORE_FILE=my-release-key.keystore
MYAPP_RELEASE_KEY_ALIAS=my-key-alias
MYAPP_RELEASE_STORE_PASSWORD=*****
MYAPP_RELEASE_KEY_PASSWORD=*****
These are going to be global gradle variables, which we can later use in our gradle config to sign our app.
3. 添加签名
Adding signing config to your app's gradle config
Edit the file android/app/build.gradle in your project folder and add the signing config,
修改 android/app/build.gradle 添加签名
...
android {
...
defaultConfig { ... }
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 {
...
signingConfig signingConfigs.release
}
}
}
...
4. 减小打包apk的大小
Enabling Proguard to reduce the>
Proguard is a tool that can slightly reduce the> IMPORTANT: Make sure to thoroughly test your app if you've enabled Proguard. Proguard often requires configuration specific to each native library you're using. See app/proguard-rules.pro.
修改文件：android/app/build.gradle
To enable Proguard, edit android/app/build.gradle:
/**
* Run Proguard to shrink the Java bytecode in> */
def enableProguardInReleaseBuilds = true
5. 发布前测试应用是否有问题
react-native run-android --variant=release
5. 生成apk
生成的apk文件在， android/app/build/outputs/apk/ 下
cd android && ./gradlew assembleRelease
6. apk文件位置
android/app/build/outputs/apk
7. 安装apk文件
adb install app-release.apk
app-release 是发布版的apk文件。 谢谢分享
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