Performance tips for Room database in Android?

Here are some essential tips to improve the performance of your Room database in Android:

• Use LiveData and Flow: Utilize LiveData or Kotlin Flow to observe data changes and minimize UI thread workload.
• Transaction Management: Group multiple insert, update, and delete operations into a single transaction to reduce latency.
• Prepopulate the Database: Prepopulate your database with essential data to reduce initial loading times.
• Indexes: Create indexes on frequently queried fields to speed up search operations.
• Use @Query with LIMIT: Limit the number of rows returned in queries to prevent loading unnecessary data.
• Avoiding Main Thread: Always perform database operations in a background thread to keep the UI responsive.

Here's an example of how to use transactions efficiently:

@Entity
data class User(
    @PrimaryKey val id: Int,
    val name: String,
    val age: Int
)

@Dao
interface UserDao {
    @Insert
    suspend fun insertUser(user: User)

    @Transaction
    suspend fun insertUsers(users: List) {
        users.forEach { insertUser(it) }
    }
}