How to use Room Persistence Library with pre-populated database?

Question

I\'d like to use Room with a pre-populated database, but I can\'t understand how to tell Room where to find my database.

I\'ve now put it in src/main/assets/da

Answer 1

I was having the same problem so I created a library which does exactly that. the accepted answer work but I think it's easier to use a library.

AppDatabase db = RoomAsset
    .databaseBuilder(context.getApplicationContext(), AppDatabase.class, "database_name.db")
    .build(); 

Add it to your root build.gradle at the end of repositories:

allprojects {
    repositories {
        ...
        maven { url "https://jitpack.io" }
    }
}

Add the dependency

dependencies {
    // ... other dependencies
    implementation 'com.github.humazed:RoomAsset:v1.0'
}

you can find the library here: https://github.com/humazed/RoomAsset