Top "Android-room" questions

For questions related to Android Room Persistence Library (which is a part of Android Architecture Components)

Android Room - simple select query - Cannot access database on the main thread

I am trying a sample with Room Persistence Library. I created an Entity: @Entity public class Agent { @PrimaryKey public String …

android crash kotlin android-studio-3.0 android-room
Room - Schema export directory is not provided to the annotation processor so we cannot export the schema

I am using Android Database Component Room I've configured everything, but when I compile, Android Studio gives me this warning: …

java android database android-room
Update some specific field of an entity in android Room

I am using android room persistence library for my new project. I want to update some field of table. I …

android sql-update android-room
How to make primary key as autoincrement for Room Persistence lib

I am creating an Entity (Room Persistence Library) class Food, where I want to make foodId as autoincrement. @Entity class …

android kotlin android-room
Room persistance library. Delete all

How can I delete all entries on specific table using Room Persistence Library? I need to drop table, but I …

android android-room android-architecture-components
Android Room - Get the id of new inserted row with auto-generate

This is how I am inserting data into database using Room Persistence Library: Entity: @Entity class User { @PrimaryKey(autoGenerate = true) …

android persistent-storage android-room
Android Room Database: How to handle Arraylist in an Entity?

I just implemented Room for offline data saving. But in an Entity class, I am getting the following error: Error:(27, 30) …

java android android-room
How to update LiveData of a ViewModel from background service and Update UI

Recently I am exploring Android Architecture, that has been introduced recently by google. From the Documentation I have found this: …

android viewmodel background-service android-room android-architecture-components
How to get rid of Incremental annotation processing requested warning?

I have just started using android development and trying to use Room library. Since yesterday I am facing this warning …

android android-room android-lifecycle
Android room persistent: AppDatabase_Impl does not exist

My app database class @Database(entities = {Detail.class}, version = Constant.DATABASE_VERSION) public abstract class AppDatabase extends RoomDatabase { private static …

java android android-room