error: cannot find symbol @dagger.hilt.InstallIn(value = {ApplicationComponent.class})

Question

升级后匕首柄(版本:2.31-alpha)ApplicationComponent.class找不到。 Component 类似 RoomDatabase 的替代方案是什么？

@Module
@InstallIn(ApplicationComponent::class)
class RoomModule() {
private val DATABASE_NAME = "salat_time"

@Singleton
@Provides
fun provideRoomDatabase(@ApplicationContext appContext: Context) = Room.databaseBuilder(
    appContext,
    AppDatabase::class.java,
    DATABASE_NAME
).createFromAsset("db/$DATABASE_NAME.sqlite").build()

@Singleton
@Provides
fun provideLocalSalatRepository(database: AppDatabase) = LocalSalatRepository(database)

@Singleton
@Provides
fun provideDistrictRepository(database: AppDatabase) = DistrictRepository(database)
}

Answer 1

ApplicationComponent 在 Dagger 版本中已弃用 2.30
ApplicationComponent 在 Dagger 版本中移除 2.31
或者，应该使用 SingletonComponent 而不是 ApplicationComponent

@Module
@InstallIn(SingletonComponent::class)
class RoomModule() {
   . . .
}

Answer 2

ApplicationComponent 重命名为 SingletonComponent

Answer 3

除了已接受的答案外，请务必更新到 latest 刀柄版本，否则您将卡在 KaptExecution Error.

当前版本ext.hilt_version = '2.33-beta'

Answer 4

只需导入：

import dagger.hilt.components.SingletonComponent

并将您的模块注释为：

@Module
@InstallIn(SingletonComponent::class)

因为 ApplicationComponent 在较新版本的 daggerHilt 中被删除，我在应用级别 gradle 文件中将这些依赖项用于匕首柄：

//Dagger - Hilt
implementation "com.google.dagger:hilt-android:2.31-alpha"
kapt "com.google.dagger:hilt-android-compiler:2.28-alpha"

implementation "androidx.hilt:hilt-lifecycle-viewmodel:1.0.0-alpha03"
kapt "androidx.hilt:hilt-compiler:1.0.0"

Answer 5

如果您不需要@InstallIn，您可以随时明确禁用。

Alternatively, the check can be disabled at the individual module level by annotating the module with @DisableInstallInCheck.

如https://dagger.dev/hilt/flags.html

所述

喜欢

@DisableInstallInCheck
@Module
class MyAwesomeModule

error: cannot find symbol @dagger.hilt.InstallIn(value = {ApplicationComponent.class})

error: cannot find symbol @dagger.hilt.InstallIn(value = {ApplicationComponent.class})

android

dagger-hilt