How to avoid forced dark mode in Material theme?

Question

I'm using Material theme. I want my app to be only in light theme (For now we don't have any plans for dark mode). Some devices force dark mode on apps and I want to avoid that.

I have seen this post on SO and unfortunately it doesn’t work for me.

So, how to solve this?

Styles.xml

   <resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="materialButtonStyle">@style/ButtonTheme</item>
    </style>

    <style name="LandingTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/White</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:buttonStyle">@style/ButtonTheme</item>
    </style>
</resoures>

Answer 1

Update: Some OEMs provide a dark-mode feature on an individual-app basis, which basically doesn't respect the forced-dark mode setting.

In that case, it is best to ignore any issues that relate to it. The user is warned about theming incompatibilities, which is a good thing from their side at the very least, if not respecting this setting.

---

Please do not account for uncontrollable factors such as overriding the force dark mode option (available inside Developer Options from Android 10+), which makes the opt-in/out effectively useless.

The feature is more of a trial-and-error, replacing light elements with their dark counterparts (basic but vague explanation, agreed) which may make-or-break an Application's User Experience.

There's a reason why it is meant only for Developers, and not made available as a "User" feature.