android/app/src/main/AndroidManifest.xml Flutter Deep Linking Example. Replace the default <intent-filter /> you see with...

gistfile1.txt

<meta-data android:name="flutter_deeplinking_enabled" android:value="true" />

<intent-filter android:autoVerify="true">
    <action android:name="android.intent.action.MAIN"/>
    <category android:name="android.intent.category.LAUNCHER"/>
    <action android:name="android.intent.action.VIEW" />
    <category android:name="android.intent.category.DEFAULT" />
    <category android:name="android.intent.category.BROWSABLE" />
    <!-- NOTE disabled as we had been using a webview to authenticate. can be removed -->
    <!-- <data android:scheme="https" android:host="https://kxxmtphzwtnncgxqdnhm.supabase.co/auth/v1/callback" /> -->
    <!-- <data android:scheme="https" /> -->
    <data android:scheme="com.manninglabs.steadycalendar" android:host="login-callback" />
</intent-filter>