无法为 [type:Factory,primary_type:'yodgorbek.komilov.musobaqayangiliklari.viewmodel.MainViewModel' 创建实例？
Could not create instance for [type:Factory,primary_type:'yodgorbek.komilov.musobaqayangiliklari.viewmodel.MainViewModel'?
我正在开发新闻应用程序我已经使用 Viewmodel 实现了 Koin 依赖注入，但出现以下异常
Process: yodgorbek.komilov.musobaqayangiliklari, PID: 8027
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:502)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: org.koin.core.error.InstanceCreationException: Could not create instance for [type:Factory,primary_type:'yodgorbek.komilov.musobaqayangiliklari.viewmodel.MainViewModel']
at org.koin.core.instance.DefinitionInstance.create(DefinitionInstance.kt:61)
at org.koin.core.instance.FactoryDefinitionInstance.get(FactoryDefinitionInstance.kt:37)
at org.koin.core.definition.BeanDefinition.resolveInstance(BeanDefinition.kt:70)
at org.koin.core.scope.Scope.resolveInstance(Scope.kt:165)
at org.koin.core.scope.Scope.get(Scope.kt:128)
at org.koin.androidx.viewmodel.ViewModelResolutionKt$createViewModelProvider.create(ViewModelResolution.kt:66)
at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.java:187)
at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.java:150)
at org.koin.androidx.viewmodel.ViewModelResolutionKt.getInstance(ViewModelResolution.kt:43)
at org.koin.androidx.viewmodel.ViewModelResolutionKt.getViewModel(ViewModelResolution.kt:23)
at org.koin.androidx.viewmodel.ext.android.LifecycleOwnerExtKt.getViewModel(LifecycleOwnerExt.kt:85)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment$$special$$inlined$viewModel.invoke(LifecycleOwnerExt.kt:95)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment$$special$$inlined$viewModel.invoke(Unknown Source:0)
at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment.getViewModel(Unknown Source:7)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment.initViewModel(TopHeadlinesFragment.kt:49)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment.onViewCreated(TopHeadlinesFragment.kt:45)
at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:892)
at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238)
at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1303)
at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:439)
at androidx.fragment.app.FragmentManagerImpl.executeOps(FragmentManagerImpl.java:2079)
at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1869)
at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1824)
at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManagerImpl.java:1727)
at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2663)
at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManagerImpl.java:2613)
at androidx.fragment.app.FragmentController.dispatchActivityCreated(FragmentController.java:246)
at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:542)
at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:201)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1425)
at android.app.Activity.performStart(Activity.java:7825)
at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3294)
at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
panpam, [10.04.20 20:03]
2020-04-10 19:35:23.798 8027-8027/yodgorbek.komilov.musobaqayangiliklari E/AndroidRuntime: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
... 3 more
Caused by: org.koin.core.error.InstanceCreationException: Could not create instance for [type:Factory,name:'appModules', primary_type:'yodgorbek.komilov.musobaqayangiliklari.repository.NewsRepository']
at org.koin.core.instance.DefinitionInstance.create(DefinitionInstance.kt:61)
at org.koin.core.instance.FactoryDefinitionInstance.get(FactoryDefinitionInstance.kt:37)
at org.koin.core.definition.BeanDefinition.resolveInstance(BeanDefinition.kt:70)
at org.koin.core.scope.Scope.resolveInstance(Scope.kt:165)
at org.koin.core.scope.Scope.get(Scope.kt:128)
at yodgorbek.komilov.musobaqayangiliklari.di.application.module.AppModulesKt$appModules.invoke(appModules.kt:28)
at yodgorbek.komilov.musobaqayangiliklari.di.application.module.AppModulesKt$appModules.invoke(Unknown Source:4)
at org.koin.core.instance.DefinitionInstance.create(DefinitionInstance.kt:54)
... 43 more
Caused by: org.json.JSONException: No value for id
at org.json.JSONObject.get(JSONObject.java:399)
at yodgorbek.komilov.musobaqayangiliklari.database.SourceTypeConverters.toSource(SourceTypeConverters.kt:19)
at yodgorbek.komilov.musobaqayangiliklari.database.SportNewsDao_Impl.getAllData(SportNewsDao_Impl.java:242)
at yodgorbek.komilov.musobaqayangiliklari.repository.NewsRepository.<init>(NewsRepository.kt:14)
at yodgorbek.komilov.musobaqayangiliklari.di.application.module.AppModulesKt$appModules.invoke(appModules.kt:15)
at yodgorbek.komilov.musobaqayangiliklari.di.application.module.AppModulesKt$appModules.invoke(Unknown Source:4)
at org.koin.core.instance.DefinitionInstance.create(DefinitionInstance.kt:54)
低于appModules.kt
val appModules = module() {
factory(named("appModules")) {
NewsRepository(sportNewsApi = get(), sportNewsDao = get())
}
// factory<NewsRepository> { (NewsRepositoryImpl(sportsNewsApi = get())) }
// Specific viewModel pattern to tell Koin how to build MainViewModel
viewModel { MainViewModel(newsRepository = get(named("appModules"))) }
}
低于MainViewModel.kt
@Suppress("UNCHECKED_CAST")
class MainViewModel(val newsRepository: NewsRepository) : ViewModel(), CoroutineScope {
// Coroutine's background job
val job = Job()
// Define default thread for Coroutine as Main and add job
override val coroutineContext: CoroutineContext = Dispatchers.Main + job
private val _showLoading = MutableLiveData<Boolean>()
private val _sportList = MutableLiveData<Results>()
val showLoading: LiveData<Boolean>
get() = _showLoading
val sportList: LiveData<Results>
get() = _sportList
fun loadNews() {
// Show progressBar during the operation on the MAIN (default) thread
_showLoading.value = true
// launch the Coroutine
launch {
// Switching from MAIN to IO thread for API operation
// Update our data list with the new one from API
val result = withContext(Dispatchers.IO) {
newsRepository.refresh()
}
_sportList.value = result
_showLoading.value = false
}
}
override fun onCleared() {
job.cancel()
}
}
低于NewsRepository.kt
class NewsRepository(private val sportNewsApi: SportNewsInterface, private val sportNewsDao: SportNewsDao) {
val data = sportNewsDao.getAllData()
suspend fun refresh() = withContext(Dispatchers.IO) {
val articles = sportNewsApi.getNewsAsync().body()?.articles
if (articles != null) {
sportNewsDao.addAll(articles)
Results.Success(articles)
} else {
Results.Failure("MyError")
}
}
}
低于app.gradle
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 29
buildToolsVersion "29.0.2"
defaultConfig {
applicationId "yodgorbek.komilov.musobaqayangiliklari"
minSdkVersion 15
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = "1.8"
}
dataBinding {
enabled = true
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.koin:koin-androidx-scope:2.0.1"
// Koin AndroidX ViewModel features
implementation "org.koin:koin-androidx-viewmodel:2.0.1"
// Koin AndroidX Experimental features
implementation "org.koin:koin-androidx-ext:2.0.1"
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.core:core-ktx:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'com.squareup.retrofit2:retrofit:2.6.2'
implementation 'com.squareup.retrofit2:converter-gson:2.6.2'
implementation 'com.google.code.gson:gson:2.8.6'
def lifecycle_version = "2.1.0"
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.0'
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.0'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0-rc03'
implementation 'com.jakewharton.retrofit:retrofit2-kotlin-coroutines-adapter:0.9.2'
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.5.0'
// ViewModel and LiveData
implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
// alternatively - just ViewModel
implementation "androidx.lifecycle:lifecycle-viewmodel:$lifecycle_version"
// For Kotlin use lifecycle-viewmodel-ktx
// alternatively - just LiveData
implementation "androidx.lifecycle:lifecycle-livedata:$lifecycle_version"
// alternatively - Lifecycles only (no ViewModel or LiveData). Some UI
// AndroidX libraries use this lightweight import for Lifecycle
implementation "androidx.lifecycle:lifecycle-runtime:$lifecycle_version"
annotationProcessor "androidx.lifecycle:lifecycle-compiler:$lifecycle_version"
// For Kotlin use kapt instead of annotationProcessor
// alternately - if using Java8, use the following instead of lifecycle-compiler
implementation "androidx.lifecycle:lifecycle-common-java8:$lifecycle_version"
// optional - ReactiveStreams support for LiveData
implementation "androidx.lifecycle:lifecycle-reactivestreams:$lifecycle_version"
// For Kotlin use lifecycle-reactivestreams-ktx
implementation 'com.google.android.material:material:1.0.0'
implementation 'androidx.cardview:cardview:1.0.0'
implementation 'androidx.recyclerview:recyclerview:1.0.0'
implementation 'com.github.bumptech.glide:glide:4.8.0'
// optional - Test helpers for LiveData
testImplementation "androidx.arch.core:core-testing:$lifecycle_version"
implementation 'com.squareup.picasso:picasso:2.71828'
implementation 'com.google.android.material:material:1.0.0-alpha3'
implementation 'androidx.cardview:cardview:1.0.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
implementation 'com.squareup.okhttp3:okhttp:4.2.1'
implementation "com.squareup.okhttp3:logging-interceptor:4.2.1"
def room_version = "2.2.5"
implementation "androidx.room:room-runtime:$room_version"
implementation "androidx.room:room-ktx:$room_version"
// implementation "androidx.room:room-coroutines:$room_version"
kapt "androidx.room:room-compiler:$room_version"
// For Kotlin use kapt instead of annotationProcessor
// optional - Kotlin Extensions and Coroutines support for Room
implementation "androidx.room:room-ktx:$room_version"
// Core library
androidTestImplementation 'androidx.test:core:1.0.0'
// AndroidJUnitRunner and JUnit Rules
androidTestImplementation 'androidx.test:runner:1.1.0'
androidTestImplementation 'androidx.test:rules:1.1.0'
// Assertions
androidTestImplementation 'androidx.test.ext:junit:1.0.0'
androidTestImplementation 'androidx.test.ext:truth:1.0.0'
androidTestImplementation 'com.google.truth:truth:0.42'
// Espresso dependencies
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.1.0'
androidTestImplementation 'androidx.test.espresso:espresso-intents:3.1.0'
androidTestImplementation 'androidx.test.espresso:espresso-accessibility:3.1.0'
androidTestImplementation 'androidx.test.espresso:espresso-web:3.1.0'
androidTestImplementation 'androidx.test.espresso.idling:idling-concurrent:3.1.0'
androidTestImplementation 'com.agoda.kakao:kakao:2.2.0'
androidTestImplementation 'com.21buttons:fragment-test-rule:2.0.1'
debugImplementation 'com.21buttons:fragment-test-rule-extras:2.0.1'
debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.0-alpha-3'
androidTestImplementation 'androidx.test.espresso:espresso-idling-resource:3.1.0'
implementation 'com.github.denzcoskun:ImageSlideshow:0.0.6'
implementation 'com.github.bumptech.glide:glide:4.10.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.10.0'
}
低于我的SportNewsDao.kt
@Dao
interface SportNewsDao {
@Query("SELECT * FROM Article")
fun getAllData(): List<Article>
@Insert
suspend fun addAll(article: List<Article>)
@Update
suspend fun updateArticle(article: Article)
@Delete
suspend fun deleteArticle(article: Article)
}
低于databaseModule.kt
val databaseModule = module {
fun provideDatabase(application: Application): SportNewsDatabase {
return Room.databaseBuilder(application, SportNewsDatabase::class.java, "sportNews.database")
.fallbackToDestructiveMigration()
.allowMainThreadQueries()
.build()
}
fun provideDao(database: SportNewsDatabase): SportNewsDao {
return database.sportNewsDao()
}
single { provideDatabase(androidApplication()) }
single { provideDao(get()) }
}
低于SportNewsDatabase.kt
Database(entities = [Article::class], version = 1, exportSchema = false)
@TypeConverters(SourceTypeConverters::class)
abstract class SportNewsDatabase : RoomDatabase() {
abstract fun sportNewsDao(): SportNewsDao
companion object {
private var instance: SportNewsDatabase? = null
fun getInstance( context: Context): SportNewsDatabase? {
if (instance == null) {
synchronized(SportNewsDatabase::class.java) {
instance = Room.databaseBuilder(context.applicationContext, SportNewsDatabase::class.java, "article_database")
.fallbackToDestructiveMigration()
.build()
}
}
return instance
}
}
}
repositoryModule.kt
val repositoryModule = module {
fun provideUserRepository(sportsNewsApi: SportNewsInterface, sportNewsDao: SportNewsDao): NewsRepository {
return NewsRepository(sportsNewsApi, sportNewsDao)
}
single { provideUserRepository(get(), get()) }
}
低于我的 koin 初始化
class SportNewsApplication : Application() {
override fun onCreate() {
super.onCreate()
// Adding Koin modules to our application
startKoin {
androidContext(this@SportNewsApplication)
modules(listOf(netModule, appModules, bbcModules, espnModules, footballItaliaModules, databaseModule, repositoryModule, viewModelModule))
}
}
}
我不明白是什么导致崩溃发生，我已经尝试过
- 使缓存重新启动无效
- 清理重建项目
- 已通过调试 ID 检查 Dao class。
- 我在我的应用程序中创建了另一个 viewModelModule 并初始化了 MainViewModel，但它并没有解决我的问题。
- 我也试过关注 koin github issus link。
- 我已经完成了下面的所有建议答案，但应用程序仍然给出上面的异常
- 按照建议删除了从 appModules.kt 命名的工厂，但它仍然出现异常。
- 我已经尝试了我在 Whosebug 中提到的所有可能的解决方案，但没有解决问题。
我想知道我在哪里犯错我必须做什么避免崩溃
任何帮助和建议将不胜感激。
您试图获取 sportNewsApi 和 sportNewsDao 但它们不在模块中。将它们添加到模块
Val anymodule = 模块{
单{ sportNewsApiImpl() }
}
where sportsNewsApiImpl is the class which implements sportNewsApi interface
I have solved problem following way I have an extra NewsRepository class definition. If I have already created one class definition, then I do not need to create it again
val appModules = module {
// Specific viewModel pattern to tell Koin how to build MainViewModel
// factory<NewsRepository> { (NewsRepositoryImpl(sportsNewsApi = get())) }
// Specific viewModel pattern to tell Koin how to build MainViewModel
viewModel { MainViewModel(newsRepository = get()) }
}
class NewsRepository(
private val sportNewsApi: SportNewsInterface,
private val sportNewsDao: SportNewsDao
) {
val data = sportNewsDao.getAllData()
suspend fun refresh() = withContext(Dispatchers.IO) {
val articles = sportNewsApi.getNewsAsync().body()?.articles
if (articles != null) {
sportNewsDao.addAll(articles)
Results.Success(articles)
} else {
Results.Failure("MyError")
}
}
}
您可能忘记创建 APIService 接口的实例，例如
单{ get().create(ForgotPasswordService::class.java) }
这在网络模块中
我正在开发新闻应用程序我已经使用 Viewmodel 实现了 Koin 依赖注入，但出现以下异常
Process: yodgorbek.komilov.musobaqayangiliklari, PID: 8027
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:502)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: org.koin.core.error.InstanceCreationException: Could not create instance for [type:Factory,primary_type:'yodgorbek.komilov.musobaqayangiliklari.viewmodel.MainViewModel']
at org.koin.core.instance.DefinitionInstance.create(DefinitionInstance.kt:61)
at org.koin.core.instance.FactoryDefinitionInstance.get(FactoryDefinitionInstance.kt:37)
at org.koin.core.definition.BeanDefinition.resolveInstance(BeanDefinition.kt:70)
at org.koin.core.scope.Scope.resolveInstance(Scope.kt:165)
at org.koin.core.scope.Scope.get(Scope.kt:128)
at org.koin.androidx.viewmodel.ViewModelResolutionKt$createViewModelProvider.create(ViewModelResolution.kt:66)
at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.java:187)
at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.java:150)
at org.koin.androidx.viewmodel.ViewModelResolutionKt.getInstance(ViewModelResolution.kt:43)
at org.koin.androidx.viewmodel.ViewModelResolutionKt.getViewModel(ViewModelResolution.kt:23)
at org.koin.androidx.viewmodel.ext.android.LifecycleOwnerExtKt.getViewModel(LifecycleOwnerExt.kt:85)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment$$special$$inlined$viewModel.invoke(LifecycleOwnerExt.kt:95)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment$$special$$inlined$viewModel.invoke(Unknown Source:0)
at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment.getViewModel(Unknown Source:7)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment.initViewModel(TopHeadlinesFragment.kt:49)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment.onViewCreated(TopHeadlinesFragment.kt:45)
at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:892)
at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238)
at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1303)
at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:439)
at androidx.fragment.app.FragmentManagerImpl.executeOps(FragmentManagerImpl.java:2079)
at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1869)
at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1824)
at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManagerImpl.java:1727)
at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2663)
at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManagerImpl.java:2613)
at androidx.fragment.app.FragmentController.dispatchActivityCreated(FragmentController.java:246)
at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:542)
at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:201)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1425)
at android.app.Activity.performStart(Activity.java:7825)
at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3294)
at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
panpam, [10.04.20 20:03]
2020-04-10 19:35:23.798 8027-8027/yodgorbek.komilov.musobaqayangiliklari E/AndroidRuntime: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
... 3 more
Caused by: org.koin.core.error.InstanceCreationException: Could not create instance for [type:Factory,name:'appModules', primary_type:'yodgorbek.komilov.musobaqayangiliklari.repository.NewsRepository']
at org.koin.core.instance.DefinitionInstance.create(DefinitionInstance.kt:61)
at org.koin.core.instance.FactoryDefinitionInstance.get(FactoryDefinitionInstance.kt:37)
at org.koin.core.definition.BeanDefinition.resolveInstance(BeanDefinition.kt:70)
at org.koin.core.scope.Scope.resolveInstance(Scope.kt:165)
at org.koin.core.scope.Scope.get(Scope.kt:128)
at yodgorbek.komilov.musobaqayangiliklari.di.application.module.AppModulesKt$appModules.invoke(appModules.kt:28)
at yodgorbek.komilov.musobaqayangiliklari.di.application.module.AppModulesKt$appModules.invoke(Unknown Source:4)
at org.koin.core.instance.DefinitionInstance.create(DefinitionInstance.kt:54)
... 43 more
Caused by: org.json.JSONException: No value for id
at org.json.JSONObject.get(JSONObject.java:399)
at yodgorbek.komilov.musobaqayangiliklari.database.SourceTypeConverters.toSource(SourceTypeConverters.kt:19)
at yodgorbek.komilov.musobaqayangiliklari.database.SportNewsDao_Impl.getAllData(SportNewsDao_Impl.java:242)
at yodgorbek.komilov.musobaqayangiliklari.repository.NewsRepository.<init>(NewsRepository.kt:14)
at yodgorbek.komilov.musobaqayangiliklari.di.application.module.AppModulesKt$appModules.invoke(appModules.kt:15)
at yodgorbek.komilov.musobaqayangiliklari.di.application.module.AppModulesKt$appModules.invoke(Unknown Source:4)
at org.koin.core.instance.DefinitionInstance.create(DefinitionInstance.kt:54)
低于appModules.kt
val appModules = module() {
factory(named("appModules")) {
NewsRepository(sportNewsApi = get(), sportNewsDao = get())
}
// factory<NewsRepository> { (NewsRepositoryImpl(sportsNewsApi = get())) }
// Specific viewModel pattern to tell Koin how to build MainViewModel
viewModel { MainViewModel(newsRepository = get(named("appModules"))) }
}
低于MainViewModel.kt
@Suppress("UNCHECKED_CAST")
class MainViewModel(val newsRepository: NewsRepository) : ViewModel(), CoroutineScope {
// Coroutine's background job
val job = Job()
// Define default thread for Coroutine as Main and add job
override val coroutineContext: CoroutineContext = Dispatchers.Main + job
private val _showLoading = MutableLiveData<Boolean>()
private val _sportList = MutableLiveData<Results>()
val showLoading: LiveData<Boolean>
get() = _showLoading
val sportList: LiveData<Results>
get() = _sportList
fun loadNews() {
// Show progressBar during the operation on the MAIN (default) thread
_showLoading.value = true
// launch the Coroutine
launch {
// Switching from MAIN to IO thread for API operation
// Update our data list with the new one from API
val result = withContext(Dispatchers.IO) {
newsRepository.refresh()
}
_sportList.value = result
_showLoading.value = false
}
}
override fun onCleared() {
job.cancel()
}
}
低于NewsRepository.kt
class NewsRepository(private val sportNewsApi: SportNewsInterface, private val sportNewsDao: SportNewsDao) {
val data = sportNewsDao.getAllData()
suspend fun refresh() = withContext(Dispatchers.IO) {
val articles = sportNewsApi.getNewsAsync().body()?.articles
if (articles != null) {
sportNewsDao.addAll(articles)
Results.Success(articles)
} else {
Results.Failure("MyError")
}
}
}
低于app.gradle
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 29
buildToolsVersion "29.0.2"
defaultConfig {
applicationId "yodgorbek.komilov.musobaqayangiliklari"
minSdkVersion 15
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = "1.8"
}
dataBinding {
enabled = true
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.koin:koin-androidx-scope:2.0.1"
// Koin AndroidX ViewModel features
implementation "org.koin:koin-androidx-viewmodel:2.0.1"
// Koin AndroidX Experimental features
implementation "org.koin:koin-androidx-ext:2.0.1"
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.core:core-ktx:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'com.squareup.retrofit2:retrofit:2.6.2'
implementation 'com.squareup.retrofit2:converter-gson:2.6.2'
implementation 'com.google.code.gson:gson:2.8.6'
def lifecycle_version = "2.1.0"
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.0'
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.0'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0-rc03'
implementation 'com.jakewharton.retrofit:retrofit2-kotlin-coroutines-adapter:0.9.2'
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.5.0'
// ViewModel and LiveData
implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
// alternatively - just ViewModel
implementation "androidx.lifecycle:lifecycle-viewmodel:$lifecycle_version"
// For Kotlin use lifecycle-viewmodel-ktx
// alternatively - just LiveData
implementation "androidx.lifecycle:lifecycle-livedata:$lifecycle_version"
// alternatively - Lifecycles only (no ViewModel or LiveData). Some UI
// AndroidX libraries use this lightweight import for Lifecycle
implementation "androidx.lifecycle:lifecycle-runtime:$lifecycle_version"
annotationProcessor "androidx.lifecycle:lifecycle-compiler:$lifecycle_version"
// For Kotlin use kapt instead of annotationProcessor
// alternately - if using Java8, use the following instead of lifecycle-compiler
implementation "androidx.lifecycle:lifecycle-common-java8:$lifecycle_version"
// optional - ReactiveStreams support for LiveData
implementation "androidx.lifecycle:lifecycle-reactivestreams:$lifecycle_version"
// For Kotlin use lifecycle-reactivestreams-ktx
implementation 'com.google.android.material:material:1.0.0'
implementation 'androidx.cardview:cardview:1.0.0'
implementation 'androidx.recyclerview:recyclerview:1.0.0'
implementation 'com.github.bumptech.glide:glide:4.8.0'
// optional - Test helpers for LiveData
testImplementation "androidx.arch.core:core-testing:$lifecycle_version"
implementation 'com.squareup.picasso:picasso:2.71828'
implementation 'com.google.android.material:material:1.0.0-alpha3'
implementation 'androidx.cardview:cardview:1.0.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
implementation 'com.squareup.okhttp3:okhttp:4.2.1'
implementation "com.squareup.okhttp3:logging-interceptor:4.2.1"
def room_version = "2.2.5"
implementation "androidx.room:room-runtime:$room_version"
implementation "androidx.room:room-ktx:$room_version"
// implementation "androidx.room:room-coroutines:$room_version"
kapt "androidx.room:room-compiler:$room_version"
// For Kotlin use kapt instead of annotationProcessor
// optional - Kotlin Extensions and Coroutines support for Room
implementation "androidx.room:room-ktx:$room_version"
// Core library
androidTestImplementation 'androidx.test:core:1.0.0'
// AndroidJUnitRunner and JUnit Rules
androidTestImplementation 'androidx.test:runner:1.1.0'
androidTestImplementation 'androidx.test:rules:1.1.0'
// Assertions
androidTestImplementation 'androidx.test.ext:junit:1.0.0'
androidTestImplementation 'androidx.test.ext:truth:1.0.0'
androidTestImplementation 'com.google.truth:truth:0.42'
// Espresso dependencies
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.1.0'
androidTestImplementation 'androidx.test.espresso:espresso-intents:3.1.0'
androidTestImplementation 'androidx.test.espresso:espresso-accessibility:3.1.0'
androidTestImplementation 'androidx.test.espresso:espresso-web:3.1.0'
androidTestImplementation 'androidx.test.espresso.idling:idling-concurrent:3.1.0'
androidTestImplementation 'com.agoda.kakao:kakao:2.2.0'
androidTestImplementation 'com.21buttons:fragment-test-rule:2.0.1'
debugImplementation 'com.21buttons:fragment-test-rule-extras:2.0.1'
debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.0-alpha-3'
androidTestImplementation 'androidx.test.espresso:espresso-idling-resource:3.1.0'
implementation 'com.github.denzcoskun:ImageSlideshow:0.0.6'
implementation 'com.github.bumptech.glide:glide:4.10.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.10.0'
}
低于我的SportNewsDao.kt
@Dao
interface SportNewsDao {
@Query("SELECT * FROM Article")
fun getAllData(): List<Article>
@Insert
suspend fun addAll(article: List<Article>)
@Update
suspend fun updateArticle(article: Article)
@Delete
suspend fun deleteArticle(article: Article)
}
低于databaseModule.kt
val databaseModule = module {
fun provideDatabase(application: Application): SportNewsDatabase {
return Room.databaseBuilder(application, SportNewsDatabase::class.java, "sportNews.database")
.fallbackToDestructiveMigration()
.allowMainThreadQueries()
.build()
}
fun provideDao(database: SportNewsDatabase): SportNewsDao {
return database.sportNewsDao()
}
single { provideDatabase(androidApplication()) }
single { provideDao(get()) }
}
低于SportNewsDatabase.kt
Database(entities = [Article::class], version = 1, exportSchema = false)
@TypeConverters(SourceTypeConverters::class)
abstract class SportNewsDatabase : RoomDatabase() {
abstract fun sportNewsDao(): SportNewsDao
companion object {
private var instance: SportNewsDatabase? = null
fun getInstance( context: Context): SportNewsDatabase? {
if (instance == null) {
synchronized(SportNewsDatabase::class.java) {
instance = Room.databaseBuilder(context.applicationContext, SportNewsDatabase::class.java, "article_database")
.fallbackToDestructiveMigration()
.build()
}
}
return instance
}
}
}
repositoryModule.kt
val repositoryModule = module {
fun provideUserRepository(sportsNewsApi: SportNewsInterface, sportNewsDao: SportNewsDao): NewsRepository {
return NewsRepository(sportsNewsApi, sportNewsDao)
}
single { provideUserRepository(get(), get()) }
}
低于我的 koin 初始化
class SportNewsApplication : Application() {
override fun onCreate() {
super.onCreate()
// Adding Koin modules to our application
startKoin {
androidContext(this@SportNewsApplication)
modules(listOf(netModule, appModules, bbcModules, espnModules, footballItaliaModules, databaseModule, repositoryModule, viewModelModule))
}
}
}
我不明白是什么导致崩溃发生，我已经尝试过
- 使缓存重新启动无效
- 清理重建项目
- 已通过调试 ID 检查 Dao class。
- 我在我的应用程序中创建了另一个 viewModelModule 并初始化了 MainViewModel，但它并没有解决我的问题。
- 我也试过关注 koin github issus link。
- 我已经完成了下面的所有建议答案，但应用程序仍然给出上面的异常
- 按照建议删除了从 appModules.kt 命名的工厂，但它仍然出现异常。
- 我已经尝试了我在 Whosebug 中提到的所有可能的解决方案，但没有解决问题。
我想知道我在哪里犯错我必须做什么避免崩溃 任何帮助和建议将不胜感激。
您试图获取 sportNewsApi 和 sportNewsDao 但它们不在模块中。将它们添加到模块
Val anymodule = 模块{ 单{ sportNewsApiImpl() }
}
where sportsNewsApiImpl is the class which implements sportNewsApi interface
I have solved problem following way I have an extra NewsRepository class definition. If I have already created one class definition, then I do not need to create it again
val appModules = module {
// Specific viewModel pattern to tell Koin how to build MainViewModel
// factory<NewsRepository> { (NewsRepositoryImpl(sportsNewsApi = get())) }
// Specific viewModel pattern to tell Koin how to build MainViewModel
viewModel { MainViewModel(newsRepository = get()) }
}
class NewsRepository(
private val sportNewsApi: SportNewsInterface,
private val sportNewsDao: SportNewsDao
) {
val data = sportNewsDao.getAllData()
suspend fun refresh() = withContext(Dispatchers.IO) {
val articles = sportNewsApi.getNewsAsync().body()?.articles
if (articles != null) {
sportNewsDao.addAll(articles)
Results.Success(articles)
} else {
Results.Failure("MyError")
}
}
}
您可能忘记创建 APIService 接口的实例，例如
单{ get().create(ForgotPasswordService::class.java) }
这在网络模块中