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Clash Royale CLAN TAG #URR8PPP How can I make this singleton simpler in Kotlin? How can I make this singleton simpler in Kotlin for the Android room database initialization? @Database(entities = arrayOf(Book::class, User::class), version = 1) abstract class AppDatabase : RoomDatabase() { abstract fun bookModel() : BookDao abstract fun userModel() : UserDao companion object { private var INSTANCE: AppDatabase? = null fun getInMemoryDatabase(context: Context): AppDatabase { if (INSTANCE == null) { INSTANCE = Room.inMemoryDatabaseBuilder(context.applicationContext, AppDatabase::class.java).build() } return INSTANCE!! } fun destroyInstance() { INSTANCE = null } } } I had the same issue few days ago. – Abner Escócio 13 hours ago ...

Clash Royale CLAN TAG #URR8PPP Class not found, Empty test suite in androidTest using Android Studio 3.0.1, Room, Kotlin I have a problem with running my androidTest. Here is my setup in gradle: apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'kotlin-kapt' android { compileSdkVersion 26 defaultConfig { applicationId "com.blabla.shoppinglistapp" minSdkVersion 17 targetSdkVersion 26 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } ext.daggerVersion = '2.11' ext.roomVersion = '1.0.0' ext.mockitoVersion = '2.11.0' dependencies { implementation fileTree(dir: 'libs', in...

Clash Royale CLAN TAG #URR8PPP Android - Memory Cost - Firebase Realtime Database x Room Persistence Library Debugging Firebase Realtime Database method ValueEventListener.onDataChange , DataSnapshot loads all data from the Cloud. ValueEventListener.onDataChange DataSnapshot Thinking in low memory cost, what is the best solution to work with the large amount of data ( in device perspective )? Im looking to implement both, using Firebase Realtime Database to do a daily update to storage local data with the Room Database. For this way, only necessary data is loaded to device's memory, based on user interaction. By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.