我正在为我的项目创建原生模块。我使用npx create-react-native-library
,库类型是Native Module
,语言是Kotlin & Objective-C
。
我添加了一个enum class
,将其添加到getConstants()
并运行示例项目,它在下面抛出错误。
Error: Exception in HostObject::get(propName:AudioPlayers): java.lang.IllegalArgumentException: Could not convert class dev.thanhad.audioplayers.PlayerMode
App@http://localhost:8081/index.bundle?platform=android&dev=true&minify=false&app=dev.thanhad.audioplayersexample&modulesOnly=false&runModule=true:93290:30
RCTView
View
RCTView
View
AppContainer@http://localhost:8081/index.bundle?platform=android&dev=true&minify=false&app=dev.thanhad.audioplayersexample&modulesOnly=false&runModule=true:84989:36
AudioPlayersExample(RootComponent)@http://localhost:8081/index.bundle?platform=android&dev=true&minify=false&app=dev.thanhad.audioplayersexample&modulesOnly=false&runModule=true:89596:28
- 音频播放器模块. kt**
package dev.thanhad.audioplayers
import com.facebook.react.bridge.*
import dev.thanhad.audioplayers.PlayerMode
class AudioPlayersModule(reactContext: ReactApplicationContext) :
ReactContextBaseJavaModule(reactContext) {
private val context = reactContext;
override fun getName(): String {
return NAME
}
override fun getConstants(): MutableMap<String, Any>? {
val constants: MutableMap<String, Any> = HashMap()
// Player Mode
constants["PLAYER_MODE_MEDIA"] = PlayerMode.MEDIA_PLAYER
constants["PLAYER_MODE_LOW_LATENCY"] = PlayerMode.LOW_LATENCY
return constants
}
companion object {
const val NAME = "AudioPlayers"
}
}
- 音频播放器软件包. kt**
package dev.thanhad.audioplayers
import com.facebook.react.ReactPackage
import com.facebook.react.bridge.NativeModule
import com.facebook.react.bridge.ReactApplicationContext
import com.facebook.react.uimanager.ViewManager
class AudioPlayersPackage : ReactPackage {
override fun createNativeModules(reactContext: ReactApplicationContext): List<NativeModule> {
return listOf(AudioPlayersModule(reactContext))
}
override fun createViewManagers(reactContext: ReactApplicationContext): List<ViewManager<*, *>> {
return emptyList()
}
}
- 播放器模式. kt**
package dev.thanhad.audioplayers
enum class PlayerMode {
MEDIA_PLAYER, LOW_LATENCY
}
- 安卓系统/内部版本. gradle**
buildscript {
// Buildscript is evaluated before everything else so we can't use getExtOrDefault
def kotlin_version = rootProject.ext.has("kotlinVersion") ? rootProject.ext.get("kotlinVersion") : project.properties["AudioPlayers_kotlinVersion"]
repositories {
google()
mavenLocal()
mavenCentral()
jcenter()
}
dependencies {
classpath "com.android.tools.build:gradle:7.2.1"
// noinspection DifferentKotlinGradleVersion
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
def isNewArchitectureEnabled() {
return rootProject.hasProperty("newArchEnabled") && rootProject.getProperty("newArchEnabled") == "true"
}
apply plugin: "com.android.library"
apply plugin: "kotlin-android"
if (isNewArchitectureEnabled()) {
apply plugin: "com.facebook.react"
}
def getExtOrDefault(name) {
return rootProject.ext.has(name) ? rootProject.ext.get(name) : project.properties["AudioPlayers_" + name]
}
def getExtOrIntegerDefault(name) {
return rootProject.ext.has(name) ? rootProject.ext.get(name) : (project.properties["AudioPlayers_" + name]).toInteger()
}
android {
compileSdkVersion getExtOrIntegerDefault("compileSdkVersion")
defaultConfig {
minSdkVersion getExtOrIntegerDefault("minSdkVersion")
targetSdkVersion getExtOrIntegerDefault("targetSdkVersion")
buildConfigField "boolean", "IS_NEW_ARCHITECTURE_ENABLED", isNewArchitectureEnabled().toString()
}
buildTypes {
release {
minifyEnabled false
}
}
lintOptions {
disable "GradleCompatible"
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
repositories {
mavenLocal()
maven {
// All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
url("$rootDir/../node_modules/react-native/android")
}
google()
mavenCentral()
jcenter()
}
def kotlin_version = getExtOrDefault("kotlinVersion")
dependencies {
// For < 0.71, this will be from the local maven repo
// For > 0.71, this will be replaced by `com.facebook.react:react-android:$version` by react gradle plugin
//noinspection GradleDynamicVersion
implementation "com.facebook.react:react-native:+"
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
}
if (isNewArchitectureEnabled()) {
react {
jsRootDir = file("../src/")
libraryName = "AudioPlayers"
codegenJavaPackageName = "dev.thanhad.audioplayers"
}
}
- 示例/安卓/构建版本. gradle**
buildscript {
ext {
buildToolsVersion = "31.0.0"
minSdkVersion = 21
compileSdkVersion = 31
targetSdkVersion = 31
if (System.properties['os.arch'] == "aarch64") {
// For M1 Users we need to use the NDK 24 which added support for aarch64
ndkVersion = "24.0.8215888"
} else {
// Otherwise we default to the side-by-side NDK version from AGP.
ndkVersion = "21.4.7075529"
}
}
repositories {
mavenLocal()
google()
mavenCentral()
}
dependencies {
classpath("com.android.tools.build:gradle:7.2.1")
classpath("com.facebook.react:react-native-gradle-plugin")
classpath("de.undercouch:gradle-download-task:5.0.1")
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
mavenLocal()
maven {
// All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
url("$rootDir/../node_modules/react-native/android")
}
maven {
// Android JSC is installed from npm
url("$rootDir/../node_modules/jsc-android/dist")
}
mavenCentral {
// We don't want to fetch react-native from Maven Central as there are
// older versions over there.
content {
excludeGroup "com.facebook.react"
}
}
google()
maven { url 'https://www.jitpack.io' }
}
}
- 示例/安卓/应用程序/构建版本. gradle**
apply plugin: "com.android.application"
import com.android.build.OutputFile
import org.apache.tools.ant.taskdefs.condition.Os
project.ext.react = [
enableHermes: false, // clean and rebuild if changing
]
apply from: "../../node_modules/react-native/react.gradle"
def enableSeparateBuildPerCPUArchitecture = false
def enableProguardInReleaseBuilds = false
def jscFlavor = 'org.webkit:android-jsc:+'
def enableHermes = project.ext.react.get("enableHermes", false);
def reactNativeArchitectures() {
def value = project.getProperties().get("reactNativeArchitectures")
return value ? value.split(",") : ["armeabi-v7a", "x86", "x86_64", "arm64-v8a"]
}
android {
ndkVersion rootProject.ext.ndkVersion
compileSdkVersion rootProject.ext.compileSdkVersion
defaultConfig {
applicationId "dev.thanhad.audioplayersexample"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 1
versionName "1.0"
buildConfigField "boolean", "IS_NEW_ARCHITECTURE_ENABLED", isNewArchitectureEnabled().toString()
if (isNewArchitectureEnabled()) {
// We configure the CMake build only if you decide to opt-in for the New Architecture.
externalNativeBuild {
cmake {
arguments "-DPROJECT_BUILD_DIR=$buildDir",
"-DREACT_ANDROID_DIR=$rootDir/../node_modules/react-native/ReactAndroid",
"-DREACT_ANDROID_BUILD_DIR=$rootDir/../node_modules/react-native/ReactAndroid/build",
"-DNODE_MODULES_DIR=$rootDir/../node_modules",
"-DANDROID_STL=c++_shared"
}
}
if (!enableSeparateBuildPerCPUArchitecture) {
ndk {
abiFilters (*reactNativeArchitectures())
}
}
}
}
if (isNewArchitectureEnabled()) {
// We configure the NDK build only if you decide to opt-in for the New Architecture.
externalNativeBuild {
cmake {
path "$projectDir/src/main/jni/CMakeLists.txt"
}
}
def reactAndroidProjectDir = project(':ReactAndroid').projectDir
def packageReactNdkDebugLibs = tasks.register("packageReactNdkDebugLibs", Copy) {
dependsOn(":ReactAndroid:packageReactNdkDebugLibsForBuck")
from("$reactAndroidProjectDir/src/main/jni/prebuilt/lib")
into("$buildDir/react-ndk/exported")
}
def packageReactNdkReleaseLibs = tasks.register("packageReactNdkReleaseLibs", Copy) {
dependsOn(":ReactAndroid:packageReactNdkReleaseLibsForBuck")
from("$reactAndroidProjectDir/src/main/jni/prebuilt/lib")
into("$buildDir/react-ndk/exported")
}
afterEvaluate {
// If you wish to add a custom TurboModule or component locally,
// you should uncomment this line.
// preBuild.dependsOn("generateCodegenArtifactsFromSchema")
preDebugBuild.dependsOn(packageReactNdkDebugLibs)
preReleaseBuild.dependsOn(packageReactNdkReleaseLibs)
// Due to a bug inside AGP, we have to explicitly set a dependency
// between configureCMakeDebug* tasks and the preBuild tasks.
// This can be removed once this is solved: https://issuetracker.google.com/issues/207403732
configureCMakeRelWithDebInfo.dependsOn(preReleaseBuild)
configureCMakeDebug.dependsOn(preDebugBuild)
reactNativeArchitectures().each { architecture ->
tasks.findByName("configureCMakeDebug[${architecture}]")?.configure {
dependsOn("preDebugBuild")
}
tasks.findByName("configureCMakeRelWithDebInfo[${architecture}]")?.configure {
dependsOn("preReleaseBuild")
}
}
}
}
splits {
abi {
reset()
enable enableSeparateBuildPerCPUArchitecture
universalApk false // If true, also generate a universal APK
include (*reactNativeArchitectures())
}
}
signingConfigs {
debug {
storeFile file('debug.keystore')
storePassword 'android'
keyAlias 'androiddebugkey'
keyPassword 'android'
}
}
buildTypes {
debug {
signingConfig signingConfigs.debug
}
release {
// Caution! In production, you need to generate your own keystore file.
// see https://reactnative.dev/docs/signed-apk-android.
signingConfig signingConfigs.debug
minifyEnabled enableProguardInReleaseBuilds
proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
}
}
// applicationVariants are e.g. debug, release
applicationVariants.all { variant ->
variant.outputs.each { output ->
// For each separate APK per architecture, set a unique version code as described here:
// https://developer.android.com/studio/build/configure-apk-splits.html
// Example: versionCode 1 will generate 1001 for armeabi-v7a, 1002 for x86, etc.
def versionCodes = ["armeabi-v7a": 1, "x86": 2, "arm64-v8a": 3, "x86_64": 4]
def abi = output.getFilter(OutputFile.ABI)
if (abi != null) { // null for the universal-debug, universal-release variants
output.versionCodeOverride =
defaultConfig.versionCode * 1000 + versionCodes.get(abi)
}
}
}
}
dependencies {
implementation fileTree(dir: "libs", include: ["*.jar"])
//noinspection GradleDynamicVersion
implementation "com.facebook.react:react-native:+" // From node_modules
implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.0.0"
debugImplementation("com.facebook.flipper:flipper:${FLIPPER_VERSION}") {
exclude group:'com.facebook.fbjni'
}
debugImplementation("com.facebook.flipper:flipper-network-plugin:${FLIPPER_VERSION}") {
exclude group:'com.facebook.flipper'
exclude group:'com.squareup.okhttp3', module:'okhttp'
}
debugImplementation("com.facebook.flipper:flipper-fresco-plugin:${FLIPPER_VERSION}") {
exclude group:'com.facebook.flipper'
}
if (enableHermes) {
//noinspection GradleDynamicVersion
implementation("com.facebook.react:hermes-engine:+") { // From node_modules
exclude group:'com.facebook.fbjni'
}
} else {
implementation jscFlavor
}
}
if (isNewArchitectureEnabled()) {
// If new architecture is enabled, we let you build RN from source
// Otherwise we fallback to a prebuilt .aar bundled in the NPM package.
// This will be applied to all the imported transtitive dependency.
configurations.all {
resolutionStrategy.dependencySubstitution {
substitute(module("com.facebook.react:react-native"))
.using(project(":ReactAndroid"))
.because("On New Architecture we're building React Native from source")
substitute(module("com.facebook.react:hermes-engine"))
.using(project(":ReactAndroid:hermes-engine"))
.because("On New Architecture we're building Hermes from source")
}
}
}
// Run this once to be able to run the application with BUCK
// puts all compile dependencies into folder libs for BUCK to use
task copyDownloadableDepsToLibs(type: Copy) {
from configurations.implementation
into 'libs'
}
apply from: file("../../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesAppBuildGradle(project)
def isNewArchitectureEnabled() {
// To opt-in for the New Architecture, you can either:
// - Set `newArchEnabled` to true inside the `gradle.properties` file
// - Invoke gradle with `-newArchEnabled=true`
// - Set an environment variable `ORG_GRADLE_PROJECT_newArchEnabled=true`
return project.hasProperty("newArchEnabled") && project.newArchEnabled == "true"
}
你能帮帮我吗?谢谢。
我尝试运行.\gradlew clean
并重新启动,但不起作用
1条答案
按热度按时间cbjzeqam1#
当React Native说它不知道如何“转换”
PlayerMode
时,这很可能意味着它无法将其序列化/反序列化以桥接Android和JS,因为它对您的Enum一无所知。(或者实际上JS端对Java枚举一无所知,而且obj-C枚举根本不同。)无论是哪种情况,它只是不能将普通的枚举值作为导出常量值来处理,但是它知道如何处理字符串,所以你可以通过常量传递枚举值的名称:将来当你开始使用React Native的“新架构”时,你可以声明可用的常量键和它们各自的值类型,Codegen会在Android/iOS端为你做一大堆类型安全的脚手架。这需要做更多的工作,但你可以放心,这两个方面会保持一致。