Dark Mode in Flutter: Implementation and Best Practices [2023]


Dark Mode, which improves visual comfort and extends device battery life, has evolved from being an app design fad to a feature that users enjoy. Flutter offers a platform that is perfect for implementing Dark Mode with simplicity because to its flexibility and user-friendliness. We’ll examine the “what” and “why” of Dark Mode in this lesson, as well as the best ways to integrate it and improve the design of your Flutter app for 2023.

Table of Contents

Implement Dark Mode In Flutter

Why Implement Dark Mode in Your Flutter App?

Dark Mode isn’t just a matter of taste; in a number of situations, it greatly enhances user experience. It saves device battery life on OLED panels, lessens eye strain in low light, and gives your app a sleek, contemporary appearance. By including Dark Mode into your Flutter application, you may move toward user-centric design and meet modern user expectations.

Implementation of Dark Mode in Flutter:

1. Setting Up Theme Data:

Begin by defining your app’s themes for both light and dark modes in the main.dart file:

ThemeData lightTheme = ThemeData(
  // Light mode theme properties

ThemeData darkTheme = ThemeData(
  // Dark mode theme properties

2. Toggle Dark Mode:

Implement a mechanism to toggle between light and dark modes, often achieved through a switch in the app settings or by following the device’s system setting:

bool isDarkMode = // logic to determine current mode

  theme: isDarkMode ? darkTheme : lightTheme,
  // other MaterialApp configurations

3. Dark Mode Switch UI:

Enhance user experience by adding a Dark Mode switch in your app’s settings. Utilize the Switch widget for a seamless toggle:

  value: isDarkMode,
  onChanged: (value) {
    // logic to toggle dark mode

Best Practices for Dark Mode in Flutter:

1. Respect System Settings:

Allow users to sync Dark Mode with their device’s system setting. This ensures a consistent experience across apps and aligns with user expectations.

2. Optimize Contrast and Readability:

Adjust text and UI element colors to maintain optimal contrast and readability in Dark Mode. Test different shades to find the right balance.

3. Test with Real Users:

Conduct usability testing with real users to gather feedback on the Dark Mode implementation. Consider their preferences and make iterative improvements.

4. Dynamic Theming with Provider:

Use the provider package to implement dynamic theming, allowing users to switch between light and dark modes without restarting the app:

final themeProvider = Provider.of<ThemeProvider>(context);

  theme: themeProvider.getTheme(),
  // other MaterialApp configurations


Dark Mode is a user-centric design decision that can greatly improve the Flutter app’s user experience. It’s not merely a personal preference. You can easily adopt Dark Mode and maintain your position at the forefront of contemporary app design in 2023 by comprehending the “what” and “why” of Dark Mode and adhering to the best practices described in this article. Utilize Flutter’s Dark Mode to enhance your app’s visual appeal and accommodate your customers’ varied tastes.