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@react-native-ohos/react-native-worklets-core

v1.6.0

Published

A Worklet runner for React Native

Readme

模板版本:v0.4.0

本项目基于 react-native-worklets-core 开发。

该第三方库的仓库已迁移至 Gitcode,且支持直接从 npm 下载,新的包名为:@react-native-ohos/react-native-worklets-core。版本所属关系如下:

| 三方库名称 | 三方库版本 | 发布信息 | 支持RN版本 | Autolink | 编译API版本 | 社区基线版本 | npm地址 | | ------------ | ------------ | ------------------------------ | ------------- | ------------- |------------------------ | ------------- | ------------- | | @react-native-ohos/react-native-worklets-core | ~ 1.6.0 | Gitcode Releases | 0.82.* | 是 | API12+ | 1.6.2 | Npm Address | | @react-native-ohos/react-native-worklets-core | ~ 1.5.2 | Gitcode Releases | 0.77.* | 否 | API12+ | 1.5.0 | Npm Address | | @react-native-ohos/react-native-worklets-core | ~ 1.3.4 | Gitcode Releases | 0.72.* | 是 | API12+ | 1.3.3 | Npm Address | | @react-native-oh-tpl/react-native-worklets-core | <= 1.3.3-0.0.4@deprecated | Github Releases(deprecated) | 0.72.* | 否 | API12+ | 1.3.3 | Npm Address |

1. 安装与使用

进入到工程目录并输入以下命令:

npm

npm install @react-native-ohos/react-native-worklets-core

yarn

yarn add @react-native-ohos/react-native-worklets-core

在项目根目录下的 babel.config.js 中添加 babel 插件

module.exports = {
  plugins: [
    ["@react-native-ohos/react-native-worklets-core/plugin"],
    // ...
  ],
  // ...
};

重置缓存重启项目

yarn start --reset-cache

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 { useState } from "react";
import { Button, Text, View } from "react-native";
import { useRunOnJS, useWorklet } from "react-native-worklets-core";

const App = () => {
  // 计数器
  const [count, setCount] = useState(0);
  // 定义一个useRunJS方法
  const setCountRunInJS = useRunOnJS(() => {
    setCount(Math.random());
  }, [count]);
  // 在worklets线程使用RunInJS方法
  const countInWorkLet = useWorklet(
    "default",
    () => {
      "worklet";
      setCountRunInJS();
    },
    [setCountRunInJS]
  );

  return (
    <View>
      <View style={{ flexDirection: "row", gap: 10 }}>
        <Button title="SetCount" onPress={() => countInWorkLet()} />
      </View>
      <Text>count:{count}</Text>
    </View>
  );
};

export default App;

2. Link

| | 是否支持autolink | RN框架版本 | |--------------------------------------|--------------|------------| | ~1.6.0 | 是 | 0.82 | | ~1.5.2 | 否 | 0.77 | | ~1.3.4 | 是 | 0.72 | | <= 1.3.3-0.0.4@deprecated | 否 | 0.72 |

使用AutoLink的工程需要根据该文档配置,Autolink框架指导文档:https://gitcode.com/openharmony-sig/ohos_react_native/blob/master/docs/zh-cn/Autolinking.md

如您使用的版本支持 Autolink,并且工程已接入 Autolink,可跳过ManualLink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:

  1. 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);
  2. 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",
    "@react-native-ohos/react-native-worklets-core": "file:../../node_modules/@react-native-ohos/react-native-worklets-core/harmony/rn_worklets.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 WorkletsPackage

若使用的是 <= 1.3.3-0.0.4 版本,请跳过本章。

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}/@react-native-ohos/react-native-worklets-core/src/main/cpp" ./rn_worklets)
# 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_worklets)
# RNOH_END: manual_package_linking_2

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

#include "RNOH/PackageProvider.h"
#include "SamplePackage.h"
+ #include "WorkletsPackage.h"

using namespace rnoh;

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

4.在 ArkTs 侧引入 WorkletsPackage

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

  ...
+ import { WorkletsPackage } from "@react-native-ohos/react-native-worklets-core/ts";

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

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。

3. 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。

在以下版本验证通过:

  1. RNOH: 0.72.96; SDK: HarmonyOS 6.0.0 Release SDK; IDE: DevEco Studio 6.0.0.858; ROM: 6.0.0.112;
  2. RNOH: 0.72.33; SDK: HarmonyOS NEXT B1; IDE: DevEco Studio: 5.0.3.900; ROM: Next.0.0.71;
  3. RNOH: 0.77.18; SDK: HarmonyOS 6.0.0 Release SDK; IDE: DevEco Studio 6.0.0.858; ROM: 6.0.0.112;
  4. RNOH: 0.82.1; SDK: HarmonyOS 6.0.1 Release SDK; IDE: DevEco Studio 6.0.1 Release; ROM:6.0.0.120 SP7;

API

[!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 | | ---------------------- | ------------------------------------------------------------ | --------- | -------- | -------- | ----------------- | | createContext | 使用给定名称创建一个新的 worklet 上下文。 | function | no | All | yes | | createSharedValue | 创建一个可在不同运行时之间共享的值。 | function | no | All | yes | | createRunOnJS | 创建一个可在默认 React-JS 上下文中异步执行的函数。 | function | no | All | yes | | runOnJS | 在默认 React-JS 上下文中异步执行给定函数。 | function | no | All | yes | | getCurrentThreadId | 返回调用此方法的线程的唯一标识符。 | function | no | All | yes | | defaultContext | 获取默认的 Worklet 上下文。 | interface | no | All | yes | | currentContext | 获取当前的 Worklet 上下文,如果在主 React JS 上下文中调用则返回 undefined。 | interface | no | All | yes | | __jsi_is_array | 如果 jsi/cpp 认为传入的值是数组则返回 true。 | function | no | All | yes | | __jsi_is_object | 如果 jsi/cpp 认为传入的值是对象则返回 true。 | function | no | All | yes | | context.addDecorator | 向 worklet 上下文添加一个对象。该对象将在所有 worklet 中可用。 | function | no | All | yes | | context.createRunAsync | 创建一个可在 Worklet 上下文中异步执行的函数。 | function | no | All | yes | | context.runAsync | 在此 Worklet 上下文中异步运行给定的函数。 | function | no | All | yes | | useWorklet | 创建一个 Worklet 函数,该函数使用自动捕获的闭包自动记忆自身。 | function | no | All | yes | | useRunOnJS | 创建一个在 JS 上下文中运行给定函数的 Worklet 函数。 | function | no | All | yes | | useSharedValue | 创建一个在重新渲染之间持久存在的共享值。 | function | no | All | yes | | isWorklet | 检查给定函数是否为 Worklet。 | function | no | All | yes | | worklet | 确保给定函数是 Worklet,如果不是则抛出错误。 | function | no | All | yes | | getWorkletDependencies | 获取给定 worklet 的依赖项。 | function | no | All | yes |

4. 遗留问题

5. 其他

6. 开源协议

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