Android Studio中的GUI方式

Have the Android app part of the React Native app open in Android Studio (this just means opening the android folder of your react-native project with Android Studio) Go to the "Build" tab at the top Go down to "Build Bundle(s) / APK(s)" Then select "Build APK(s)" This will walk you through a process of locating your keys to sign the APK or creating your keys if you don't have them already which is all very straightforward. If you're just practicing, you can generate these keys and save them to your desktop. Once that process is complete and if the build was successful, there will be a popup down below in Android Studio. Click the link within it that says "locate" (the APK) That will take you to the apk file, move that over to your android device. Then navigate to that file on the Android device and install it.

试试下面，它会在你的根/android/app/build/outputs/apk/debug文件夹下生成一个app-debug.apk

React-native bundle——platform android——dev false——entry-file index.js——bundle-output android/app/src/main/assets/index.android。Bundle——assets-dest android/app/src/main/res

然后进入android文件夹并运行

。/ gradlew assembleDebug

根据Aditya Singh的回答，生成的(未签名的)apk不会安装在我的手机上。我必须使用这里的说明生成一个签名apk。

下面的方法对我很有效:

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

把我的释放钥匙放上去。android/app下的Keystore文件 目录。然后编辑文件 ~ / .gradle / gradle。属性并添加以下内容(替换**** . Properties) 使用正确的密钥存储库密码、别名和密钥密码)

MYAPP_RELEASE_STORE_FILE=my-release-key.keystore
MYAPP_RELEASE_KEY_ALIAS=my-key-alias
MYAPP_RELEASE_STORE_PASSWORD=****
MYAPP_RELEASE_KEY_PASSWORD=****

如果你使用的是MacOS，你可以使用这里的说明将密码存储在钥匙链中，而不是以明文形式存储。

然后编辑app/build。gradle并确保存在以下内容(可能需要添加带有signingConfigs signingConfig的部分):

...
android {
    ...
    defaultConfig { ... }
    signingConfigs {
        release {
            if (project.hasProperty('MYAPP_RELEASE_STORE_FILE')) {
                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
        }
    }
}
...

然后执行cd android && ./gradlew assemblerrelease命令，

对于Windows, cd android，然后执行gradlew assemblerrelease命令，在android/app/build/outputs/apk/app-release.apk或android/app/build/outputs/apk/release/app-release.apk下找到签名的apk

对我来说，./gradlew assemblerrelease不再工作，但下面的可以。

./gradlew :app:assembleRelease

感谢这条评论。

不使用dev-server生成调试APK

如果你真的想生成一个调试APK(用于测试)，可以在没有开发服务器的情况下运行，这里是我对另一篇类似文章的回答的链接，这可能会对你有帮助。 https://stackoverflow.com/a/65762142/7755579

你所要做的就是:

编辑/ app / android构建gradle。

project.ext.react = [
    ...
    bundleInDebug: true, // add this line
]

在项目的根目录下运行此命令

react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res

然后，在/android文件夹内运行。/gradlew assembleDebug (Mac或Linux)或gradlew assembleDebug (Windows) 如果构建失败，我建议您从Android studio构建应用程序

第一个

cd android

然后运行

./gradlew installRelease

最后你将能够在这里找到apk。

Project\android\app\build\outputs\apk\release\app-release.apk