如何配置 react native android 库以使用 npm 安装的 react-native？

Question

我在写一个android库，需要调用ReactInstanceManager.onHostResume，我的build.gradle文件内容是：

apply plugin: 'com.android.library'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile "com.facebook.react:react-native:+"
}

我用npm install --save react-native-mylib将它安装到一个示例项目中，然后用react-native run-android编译该项目，导致一些错误：

MyModuleActivity.java:107: error: cannot find symbol
      mReactInstanceManager.onHostPause();
                           ^
  symbol:   method onHostPause()
  location: variable mReactInstanceManager of type ReactInstanceManager

我尝试查找已安装的 react-native 库：

find . -iname "*.jar"
...
./node_modules/react-native-mylib/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/classes.jar
./node_modules/react-native-mylib/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/libs/infer-annotations-1.5.jar
...

好像从maven安装了react-native@0.20.1，这个版本的react-native没有onHostPause方法。

编辑：

在另一个项目中找到链接了一些库的库，它们都是链接的旧版本的 react-native：

$ find . -iname "*.jar" | grep com.facebook.react
./android/app/build/intermediates/exploded-aar/com.facebook.react/react-native/0.25.1/jars/classes.jar
./android/app/build/intermediates/exploded-aar/com.facebook.react/react-native/0.25.1/jars/libs/infer-annotations-1.5.jar
./android/app/build/intermediates/exploded-aar/com.facebook.react/react-native/0.26.0/jars/classes.jar
./android/app/build/intermediates/exploded-aar/com.facebook.react/react-native/0.26.0/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native/android/com/facebook/react/react-native/0.26.0/react-native-0.26.0-javadoc.jar
./node_modules/react-native/android/com/facebook/react/react-native/0.26.0/react-native-0.26.0-sources.jar
./node_modules/react-native-android-blurryoverlay/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.16.1/jars/classes.jar
./node_modules/react-native-android-blurryoverlay/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.16.1/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-applean/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/classes.jar
./node_modules/react-native-applean/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-applean-appview/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/classes.jar
./node_modules/react-native-applean-appview/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-barcodescanner/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.19.1/jars/classes.jar
./node_modules/react-native-barcodescanner/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.19.1/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-camera/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.19.1/jars/classes.jar
./node_modules/react-native-camera/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.19.1/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-code-push/android/app/build/intermediates/exploded-aar/com.facebook.react/react-native/0.19.1/jars/classes.jar
./node_modules/react-native-code-push/android/app/build/intermediates/exploded-aar/com.facebook.react/react-native/0.19.1/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-device-info/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.11.0/jars/classes.jar
./node_modules/react-native-device-info/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.11.0/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-fs/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.12.0/jars/classes.jar
./node_modules/react-native-fs/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.12.0/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-mipush/android/app/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/classes.jar
./node_modules/react-native-mipush/android/app/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-orientation/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.11.0/jars/classes.jar
./node_modules/react-native-orientation/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.11.0/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-sound/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.11.0/jars/classes.jar
./node_modules/react-native-sound/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.11.0/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-sound/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.12.0/jars/classes.jar
./node_modules/react-native-sound/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.12.0/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-vector-icons/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/classes.jar
./node_modules/react-native-vector-icons/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.20.1/jars/libs/infer-annotations-1.5.jar
./node_modules/react-native-vibration/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.12.0/jars/classes.jar
./node_modules/react-native-vibration/android/build/intermediates/exploded-aar/com.facebook.react/react-native/0.12.0/jars/libs/infer-annotations-1.5.jar

问题：如何配置才能正确使用node_modules/react-native/android？

编辑：已解决，只需将正确的存储库设置为：

repositories {
    mavenLocal()
    jcenter()
    maven {
        // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
        url "$projectDir/../../../node_modules/react-native/android"
    }
}

Answer 1

不久前也解决了... 我使用react-native-create-library 创建了一个库。 maven 提供的最新版本是 0.20.1，对于今天的 react-native 版本来说有点老了。所以我将我需要的 RN 版本安装到我的库的 node_modules 文件夹中

npm install react-native@0.46.1

在 build.gradle 中

repositories {
    maven {
        // All of React Native (JS, Android binaries) is installed from npm
        url "$rootDir/../node_modules/react-native/android"
    }
    jcenter()
}
//
dependencies {
    compile 'com.android.support:appcompat-v7:23.0.1'
    compile "com.facebook.react:react-native:+"
}

这样，您无需将库保存在主项目中即可构建和检查语法。