DataStoreExample6.kt

companion object {
    private const val PREF_NAME = "example_pref"

    private val EXAMPLE_DATA1 = stringPreferencesKey("exampleData1")
    private val EXAMPLE_DATA2 = booleanPreferencesKey("exampleData2")
    private val EXAMPLE_DATA3 = intPreferencesKey("exampleData3")

    private val Context.dataStore: DataStore<Preferences> by preferencesDataStore(
        name = PREF_NAME,
        produceMigrations = { context ->
            listOf(SharedPreferencesMigration(context, PREF_NAME, setOf(EXAMPLE_DATA1.name, EXAMPLE_DATA3.name)))
        }
    )
}