react- Native -sensors错误:传感器的本机模块不可用。react-native链接是否成功运行？

Question

感谢任何帮助，得到错误消息“错误:传感器的本机模块不可用。react-native link是否成功运行？”运行npx react-native start时

npx react-native run-android给出这个错误：> Task :app:processDebugManifest在安装react-native-sensors之后失败。

安装步骤：

npx react-原生初始化proj8

cd proj8

npm install react-native-sensors -save

npx react-本机链接react-native-sensors

最后一条命令报告成功，但当我完成Android手动过程时，一些部分没有完成，如下所示：

import com.sensors.RNSensorsPackage;

是在android/app/src/main/java/.../MainApplication.java

new RNSensorsPackage()不在那里，我添加了如下内容：

@Override
       protected List<ReactPackage> getPackages() {
       @SuppressWarnings("UnnecessaryLocalVariable")
       List<ReactPackage> packages = new PackageList(this).getPackages();
       // Packages that cannot be autolinked yet can be added manually here, for example:
       // packages.add(new MyReactNativePackage());
       packages.add(new RNSensorsPackage());
       return packages;
}

include ':react-native-sensors'
project(':react-native-sensors').projectDir = new File(rootProject.projectDir,  '../node_modules/react-native-sensors/android')

都在android/settings.gradle中吗？

dependencies {
    implementation project(':react-native-sensors')
    implementation fileTree(dir: "libs", include: ["*.jar"])
    //noinspection GradleDynamicVersion
    implementation "com.facebook.react:react-native:+"  // From node_modules

我不得不添加实现项目(‘：react-native-sensors’)

我认为我的代码还不重要，但是App.js：

import React, {useState, useEffect, useRef} from 'react';
import { StyleSheet,ScrollView,SafeAreaView,Platform, View,Text } from 'react-native';

export default function App() {
    var Rndr = 
        <Text>asdf</Text>
    return Rndr
}

package.json：

{
  "name": "proj8",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "android": "react-native run-android",
    "ios": "react-native run-ios",
    "start": "react-native start",
    "test": "jest",
    "lint": "eslint ."
  },
  "dependencies": {
    "react": "16.13.1",
    "react-native": "0.63.3",
    "react-native-sensors": "^7.0.1"
  },
  "devDependencies": {
    "@babel/core": "^7.8.4",
    "@babel/runtime": "^7.8.4",
    "@react-native-community/eslint-config": "^1.1.0",
    "babel-jest": "^25.1.0",
    "eslint": "^6.5.1",
    "jest": "^25.1.0",
    "metro-react-native-babel-preset": "^0.59.0",
    "react-test-renderer": "16.13.1"
  },
  "jest": {
    "preset": "react-native"
  }
}

Answer 1

我遇到了同样的问题。这是因为react-native-sensors的minsdk版本是17，而react-native的默认minsdk版本是16，这很容易解决。

只需转到android/build.gradle

• Change minSdkVersion to android/build.gradle

• Change 17

在此之前

 ext {
    buildToolsVersion = "29.0.2"
    minSdkVersion = 16
    compileSdkVersion = 29
    targetSdkVersion = 29
}

之后

 ext {
    buildToolsVersion = "29.0.2"
    minSdkVersion = 19
    compileSdkVersion = 29
    targetSdkVersion = 29
}