Flutter安卓端Branch Deep Link初始化无响应，返回后恢复正常

问题现象 #

• 从WhatsApp等应用点击Deep Link打开App时，App能启动但无法接收链接；从最近应用切回WhatsApp再次点击仍无效，按下设备返回键回到WhatsApp后，后续链接可正常工作。
• 手动启动App后，前往WhatsApp点击链接，App启动但无法接收链接；从最近应用切回WhatsApp再次点击仍无效，按下返回键回到WhatsApp后，后续链接恢复正常。

Android Manifest Activity配置 #

<activity android:name=".MainActivity" android:exported="true" android:enableOnBackInvokedCallback="true" android:launchMode="singleTask" android:theme="@style/LaunchTheme" android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode" android:hardwareAccelerated="true" android:windowSoftInputMode="adjustResize">
      <!-- Branch URI Scheme -->
      <intent-filter android:autoVerify="true">
        <data android:scheme="..."/>
        <action android:name="android.intent.action.VIEW"/>
        <category android:name="android.intent.category.DEFAULT"/>
        <category android:name="android.intent.category.BROWSABLE"/>
      </intent-filter>

      <!-- Branch App Links - Live App -->
      <intent-filter android:autoVerify="true">
        <action android:name="android.intent.action.VIEW"/>
        <category android:name="android.intent.category.DEFAULT"/>
        <category android:name="android.intent.category.BROWSABLE"/>
        <data android:scheme="https" android:host="....app.link"/>
        <data android:scheme="https" android:host="...-alternate.app.link"/>
      </intent-filter>
</activity>

Flutter Doctor输出 #

[✓] Flutter (Channel stable, 3.19.3, on macOS 14.4 23E214 darwin-arm64, locale it-IT)
• Flutter version 3.19.3 on channel stable at /Users/dev/FlutterDev/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision ba39319843 (4 weeks ago), 2024-03-07 15:22:21 -0600
• Engine revision 2e4ba9c6fb
• Dart version 3.3.1
• DevTools version 2.31.1

[✓] Android toolchain - develop for Android devices (Android SDK version 32.1.0-rc1)
• Android SDK at /Users/dev/Library/Android/sdk
• Platform android-34, build-tools 32.1.0-rc1
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)
• All Android licenses accepted.

• No issues found!

已尝试的解决方案 #

• 修改launchMode为singleTop，导致多次打开链接并在WhatsApp中创建新实例
• 添加android:allowTaskReparenting="true"、android:alwaysRetainTaskState="true"属性
• 切换launchMode为singleInstance、standard模式

以上方案均未解决问题。

内容的提问来源于stack exchange，提问作者Andrea Bigini