@ohmi/netinfo

模板版本：v0.2.2

@ohmi/netinfo

[!TIP] Gitee 地址

介绍

该项目基于react-native-netinfo开发。

安装与使用

请到三方库的 Releases 发布地址查看配套的版本信息：@ohmi/netinfo Releases 。对于未发布到npm的旧版本，请参考安装指南安装tgz包。

进入到工程目录并输入以下命令：

npm

npm install @ohmi/netinfo

yarn

yarn add @ohmi/netinfo

下面的代码展示了这个库的基本使用场景：

[!WARNING] 使用时 import 的库名不变。

import React from "react";
import { View, Text } from "react-native";
import NetInfo, { useNetInfo } from "@react-native-community/netinfo";

const App = () => {
  const [fetchInfo, setFetchInfo] = React.useState("");
  const [refreshInfo, setRefreshInfo] = React.useState("");
  const netInfo = useNetInfo();

  NetInfo.fetch().then((state) => {
    setFetchInfo(JSON.stringify(state));
  });
  NetInfo.refresh().then((state) => {
    setRefreshInfo(JSON.stringify(state));
  });

  return (
    <View>
      <Text>Type: {netInfo.type}</Text>
      <Text>Is Connected? {netInfo.isConnected?.toString()}</Text>
      <Text style={{ fontSize: 16, fontWeight: "600" }}>fetch():</Text>
      <Text>{fetchInfo}</Text>
      <Text style={{ fontSize: 16, fontWeight: "600" }}>refresh():</Text>
      <Text>{refreshInfo}</Text>
    </View>
  );
};
export default App;

Link

目前 HarmonyOS 暂不支持 AutoLink，所以 Link 步骤需要手动配置。

首先需要使用 DevEco Studio 打开项目里的 HarmonyOS 工程 harmony

1.在工程根目录的 oh-package.json5 添加 overrides 字段

{
  ...
  "overrides": {
    "@rnoh/react-native-openharmony" : "./react_native_openharmony"
  }
}

2.引入原生端代码

目前有两种方法：

• 通过 har 包引入（在 IDE 完善相关功能后该方法会被遗弃，目前首选此方法）；
• 直接链接源码。

方法一：通过 har 包引入

[!TIP] har 包位于三方库安装路径的 harmony 文件夹下。

打开 entry/oh-package.json5，添加以下依赖

"dependencies": {
    "@rnoh/react-native-openharmony": "file:../react_native_openharmony",
    "@ohmi/netinfo": "file:../../node_modules/@ohmi/netinfo/harmony/netinfo.har"
  }

点击右上角的 sync 按钮

或者在终端执行：

cd entry
ohpm install

方法二：直接链接源码

[!TIP] 如需使用直接链接源码，请参考直接链接源码说明

3.配置 CMakeLists 和引入 RNCNetInfoPackage

打开 entry/src/main/cpp/CMakeLists.txt，添加：

project(rnapp)
cmake_minimum_required(VERSION 3.4.1)
set(CMAKE_SKIP_BUILD_RPATH TRUE)
set(RNOH_APP_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
set(NODE_MODULES "${CMAKE_CURRENT_SOURCE_DIR}/../../../../../node_modules")
+ set(OH_MODULES "${CMAKE_CURRENT_SOURCE_DIR}/../../../oh_modules")
set(RNOH_CPP_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../react-native-harmony/harmony/cpp")
set(LOG_VERBOSITY_LEVEL 1)
set(CMAKE_ASM_FLAGS "-Wno-error=unused-command-line-argument -Qunused-arguments")
set(CMAKE_CXX_FLAGS "-fstack-protector-strong -Wl,-z,relro,-z,now,-z,noexecstack -s -fPIE -pie")
set(WITH_HITRACE_SYSTRACE 1) # for other CMakeLists.txt files to use
add_compile_definitions(WITH_HITRACE_SYSTRACE)

add_subdirectory("${RNOH_CPP_DIR}" ./rn)

# RNOH_BEGIN: manual_package_linking_1
add_subdirectory("../../../../sample_package/src/main/cpp" ./sample-package)
+ add_subdirectory("${OH_MODULES}/@ohmi/netinfo/src/main/cpp" ./netinfo)
# RNOH_END: manual_package_linking_1

file(GLOB GENERATED_CPP_FILES "./generated/*.cpp")

add_library(rnoh_app SHARED
    ${GENERATED_CPP_FILES}
    "./PackageProvider.cpp"
    "${RNOH_CPP_DIR}/RNOHAppNapiBridge.cpp"
)
target_link_libraries(rnoh_app PUBLIC rnoh)

# RNOH_BEGIN: manual_package_linking_2
target_link_libraries(rnoh_app PUBLIC rnoh_sample_package)
+ target_link_libraries(rnoh_app PUBLIC rnoh_netinfo)
# RNOH_END: manual_package_linking_2

打开 entry/src/main/cpp/PackageProvider.cpp，添加：

#include "RNOH/PackageProvider.h"
#include "generated/RNOHGeneratedPackage.h"
#include "SamplePackage.h"
+ #include "RNCNetInfoPackage.h"

using namespace rnoh;

std::vector<std::shared_ptr<Package>> PackageProvider::getPackages(Package::Context ctx) {
    return {
        std::make_shared<RNOHGeneratedPackage>(ctx),
        std::make_shared<SamplePackage>(ctx),
+       std::make_shared<RNCNetInfoPackage>(ctx)
    };
}

4.在 ArkTs 侧引入 NetInfoPackage

打开 entry/src/main/ets/RNPackagesFactory.ts，添加：

  ...
+ import {NetInfoPackage} from '@ohmi/netinfo/ts';

export function createRNPackages(ctx: RNPackageContext): RNPackage[] {
  return [
    new SamplePackage(ctx),
+   new NetInfoPackage(ctx)
  ];
}

5.运行

点击右上角的 sync 按钮

或者在终端执行：

cd entry
ohpm install

然后编译、运行即可。

约束与限制

兼容性

要使用此库，需要使用正确的 React-Native 和 RNOH 版本。另外，还需要使用配套的 DevEco Studio 和 手机 ROM。

请到三方库相应的 Releases 发布地址查看 Release 配套的版本信息：@ohmi/netinfo Releases

属性

[!TIP] "Platform"列表示该属性在原三方库上支持的平台。

[!TIP] "HarmonyOS Support"列为 yes 表示 HarmonyOS 平台支持该属性；no 则表示不支持；partially 表示部分支持。使用方法跨平台一致，效果对标 iOS 或 Android 的效果。

NetInfoStateType

Name	Description	Type	Required	Platform	HarmonyOS Support
none	No network connection is active	String	no	iOS Android	yes
unknown	The network state could not or has yet to be be determined	String	no	iOS Android	no
cellular	Active network over cellular	String	no	iOS Android	yes
wifi	Active network over Wifi	String	no	iOS Android	yes
bluetooth	Active network over Bluetooth	String	no	Android	no
ethernet	Active network over wired ethernet	String	no	iOS Android	no
wimax	Active network over WiMax	String	no	Android	no
vpn	Active network over VPN	String	no	Android	no
other	Active network over another type of network	String	no	iOS Android	no

NetInfoCellularGeneration

Name	Description	Type	Required	Platform	HarmonyOS Support
null	Either we are not currently connected to a cellular network or type could not be determined	String	no	iOS Android	yes
2g	Currently connected to a 2G cellular network. Includes CDMA, EDGE, GPRS, and IDEN type connections	String	no	iOS Android	yes
3g	Currently connected to a 3G cellular network. Includes EHRPD, EVDO, HSPA, HSUPA, HSDPA, and UTMS type connections	String	no	iOS Android	yes
4g	Currently connected to a 4G cellular network. Includes HSPAP and LTE type connections	String	no	iOS Android	yes
5g	Currently connected to a 5G cellular network. Includes NRNSA (iOS only) and NR type connections	String	no	iOS Android	yes

NetInfoState

Name	Description	Type	Required	Platform	HarmonyOS Support
type	The type of the current connection.	NetInfoStateType	yes	iOS Android	yes
isConnected	If there is an active network connection. Defaults to null on most platforms for unknown networks. Note: Web browsers report network type unknown for many otherwise valid networks (https://caniuse.com/netinfo), so isConnected may be true or false and represent a real connection status even for unknown network types in certain cases.	boolean, null	yes	iOS Android	yes
isInternetReachable	If the internet is reachable with the currently active network connection. If unknown defaults to null	boolean, null	yes	iOS Android	yes
isWifiEnabled	(Android only) Whether the device's WiFi is ON or OFF.	boolean	yes	iOS Android	yes
details	The value depends on the type value. See below.	object	yes	iOS Android	yes

Details

Type is wifi

Name	Description	Type	Required	Platform	HarmonyOS Support
isConnectionExpensive	If the network connection is considered "expensive". This could be in either energy or monetary terms.	boolean	yes	iOS Android	yes
ssid	The SSID of the network. May not be present, null, or an empty string if it cannot be determined. On iOS, your app must meet at least one of the following requirements and you must set the shouldFetchWiFiSSID configuration option or no attempt will be made to fetch the SSID. On Android, you need to have the ACCESS_FINE_LOCATION permission in your AndroidManifest. xml and accepted by the user.	string	yes	iOS Android	yes
bssid	The BSSID of the network. May not be present, null, or an empty string if it cannot be determined. On iOS, make sure your app meets at least one of the following requirements. On Android, you need to have the ACCESS_FINE_LOCATION permission in your AndroidManifest. xml and accepted by the user.	string	yes	iOS Android	yes
strength	An integer number from 0 to 100 for the signal strength. May not be present if the signal strength cannot be determined.	number	yes	Android	yes
ipAddress	The external IP address. Can be in IPv4 or IPv6 format. May not be present if it cannot be determined.	string	yes	iOS Android	yes
subnet	The subnet mask in IPv4 format. May not be present if it cannot be determined.	string	yes	iOS Android	yes
frequency	Network frequency. Example: For 2.4 GHz networks, the method will return 2457. May not be present if it cannot be determined.	number	yes	Android	yes
linkSpeed	The link speed in Mbps.	number	yes	Android	yes
rxLinkSpeed	The current receive link speed in Mbps.	number	yes	Android	yes
txLinkSpeed	The current transmit link speed in Mbps.	number	yes	Android	yes

Type is cellular

Name	Description	Type	Required	Platform	HarmonyOS Support
isConnectionExpensive	If the network connection is considered "expensive". This could be in either energy or monetary terms.	boolean	yes	iOS Android	yes
cellularGeneration	The generation of the cell network the user is connected to. This can give an indication of speed, but no guarantees.	NetInfoCellularGeneration	yes	iOS Android	yes
carrier	The network carrier name. May not be present or may be empty if none can be determined.	string	yes	iOS Android	yes

Type is bluetooth, ethernet, wimax, vpn, or other

Name	Description	Type	Required	Platform	HarmonyOS Support
isConnectionExpensive	If the network connection is considered "expensive". This could be in either energy or monetary terms.	boolean	yes	iOS Android	yes

静态方法

[!TIP] "Platform"列表示该属性在原三方库上支持的平台。

[!TIP] "HarmonyOS Support"列为 yes 表示 HarmonyOS 平台支持该属性；no 则表示不支持；partially 表示部分支持。使用方法跨平台一致，效果对标 iOS 或 Android 的效果。

Name	Description	Type	Required	Platform	HarmonyOS Support
fetch()	Returns a Promise that resolves to a NetInfoState object.	function	yes	iOS Android	yes
refresh()	Updates NetInfo's internal state, then returns a Promise that resolves to a NetInfoState object. This is similar to fetch(), but really only useful on platforms that do not supply internet reachability natively. For example, you can use it to immediately re-run an internet reachability test if a network request fails unexpectedly.	function	yes	iOS Android	yes
addEventListener()	Subscribe to connection information. The callback is called with a parameter of type NetInfoState whenever the connection state changes. Your listener will be called with the latest information soon after you subscribe and then with any subsequent changes afterwards. You should not assume that the listener is called in the same way across devices or platforms.	function	yes	iOS Android	yes
useNetInfo()	A React Hook which can be used to get access to the latest state from the global instance. It returns a hook with the NetInfoState type.	function	yes	iOS Android	yes
useNetInfoInstance()	A React Hook which can be used to create and manage an isolated instance of a network manager class. It returns a refresh function and the current NetInfoState.	function	yes	iOS Android	yes

遗留问题

其他

开源协议

本项目基于 The MIT License (MIT) ，请自由地享受和参与开源。