Function savePrefs

example/src/index.tsx:96–107

()

  React.useEffect(() => {
    const savePrefs = async () => {
      try {
        await AsyncStorage.setItem(
          PREFERENCES_KEY,
          JSON.stringify({
            theme: isDarkMode ? 'dark' : 'light',
          })
        );
      } catch (e) {
        // ignore error
      }
    };

    savePrefs();
  }, [isDarkMode]);