You might encounter a scenario where the OverrideBackButtonPress method in your Page is not being triggered on Android devices. This can be a frustrating issue, but there’s a straightforward solution that involves modifying your AndroidManifest.xml file.

The predictive back gesture feature in Android can indeed affect how back button presses are handled in your application. Learn more at: https://developer.android.com/guide/navigation/custom-back/predictive-back-gesture

Predictive Back Gesture

Android’s predictive back gesture allows users to preview the destination or action that will occur when they complete a back gesture. In .NET MAUI, the OverrideBackButtonPress method allows you to handle the back button press event in your application. However, if this method is not being called, it could be due to a specific setting in your AndroidManifest.xml file.

Disabling Predictive Back Gesture

To ensure your custom back button handling works as expected, you need to disable the predictive back gesture by setting the android:enableOnBackInvokedCallback attribute to false in your AndroidManifest.xml file. This prevents the system from intercepting the back button press and allows your application to handle it.

<application
    android:label="YourAppName"
    android:icon="@mipmap/ic_launcher"
    android:enableOnBackInvokedCallback="false">
    <!-- Other settings -->
</application>