react-native-webview

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

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

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

2.2.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

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-webview": "file:../../node_modules/@react-native-ohos/react-native-webview/harmony/rn_webview.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

2.3.配置 CMakeLists 和引入 WebViewPackage

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 "${CMAKE_CURRENT_SOURCE_DIR}/../../../oh_modules")
+set(OH_MODULE_DIR "${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_MODULE_DIR}/@react-native-ohos/react-native-webview/src/main/cpp" ./webview)

# 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_webview)
# RNOH_END: manual_package_linking_2

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

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

using namespace rnoh;

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

2.4.在 ArkTs 侧引入 webview 组件

找到 function buildCustomComponent()，一般位于 entry/src/main/ets/pages/index.ets 或 entry/src/main/ets/rn/LoadBundle.ets，添加：

+ import { WebView, WEB_VIEW } from "@react-native-ohos/react-native-webview"

@Builder
function buildCustomComponent(ctx: ComponentBuilderContext) {
+ if (ctx.componentName === WEB_VIEW) {
+   WebView({
+     ctx: ctx.rnComponentContext,
+     tag: ctx.tag
+   })
+ }
 ...
}
...

在entry/src/main/ets/pages/index.ets 或 entry/src/main/ets/rn/LoadBundle.ets 找到常量 arkTsComponentNames 在其数组里添加组件名

const arkTsComponentNames: Array<string> = [
  SampleView.NAME,
  GeneratedSampleView.NAME,
  PropsDisplayer.NAME,
+ WEB_VIEW
  ];

2.5.在 ArkTs 侧引入 WebViewPackage

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

import type {RNPackageContext, RNPackage} from 'rnoh/ts';
import {SamplePackage} from 'rnoh-sample-package/ts';
+ import { WebViewPackage } from '@react-native-ohos/react-native-webview/ts';

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