Dynamic Theme Switching with DataStore in Compose

Modern Android apps support multiple themes. Using DataStore with Compose makes theme switching seamless and persistent. DataStore Setup import androidx.datastore.preferences.core.booleanPreferencesKey import androidx.datastore.preferences.core.stringPreferencesKey import androidx.datastore.preferences.preferencesDataStore private val Context . dataStore by preferencesDataStore ( "app_preferences" ) val DARK_MODE_KEY = booleanPreferencesKey ( "dark_mode" ) val COLOR_SEED_KEY = stringPreferencesKey ( "color_seed" ) Define Your Color Schemes data class ThemeConfig ( val isDarkMode : Boolean , val colorSeed : Long ) val ColorOptions = listOf ( Color ( 0xFF6200EE ), // Purple Color ( 0xFF03DAC6 ), // Teal Color ( 0xFFBB86FC ), // Light Purple ) Create ViewModel with DataStore class ThemeViewModel ( private val context : Context ) : ViewModel () { val themeConfig = context . dataStore . data . map { prefs -> ThemeConfig ( isDarkMode = prefs [ DARK_MODE_KEY ] ?: false , colorSeed = prefs [ C