Can somebody explain why my code crashes when providing RoomDatabase and Dao like this:
@Module
@InstallIn(SingletonComponent::class)
object AppModule {
@Singleton
@Provides
fun provideDatabase(@ApplicationContext app: Context): RoomDatabase {
return Room.databaseBuilder(app, AppDatabase::class.java, "db_name").build()
}
@Singleton
@Provides
fun provideMyDao(db: AppDatabase): MyDao {
return db.myDao()
}
}
However, providing the instance without return statement, using the = sign works perfectly fine:
@Module
@InstallIn(SingletonComponent::class)
object AppModule {
@Singleton
@Provides
fun provideDatabase(@ApplicationContext app: Context) = Room.databaseBuilder(app, AppDatabase::class.java, "db_name").build()
@Singleton
@Provides
fun provideMyDao(db: AppDatabase) = db.myDao()
}
The only difference is the declaration of provider functions. Those with equal signs works. Using the declaration with curly braces and return statement gives me following error.
