将意图类型添加到 android flutter 清单会导致主屏幕中缺少应用程序图标

Question

I followed the example code mentioned here android intents flutter
It worked successfully but it leads to missing the app icon in the Android home screen.
also, I noticed that the app icon depends on the following line in the manifest file.

<data android:mimeType="text/plain" />

removing the above line makes the app icon available on the home screen. but android intent functions are not working.
I can't figure out why is it.
Here is a part of manifest file.

<application
    android:name="io.flutter.app.FlutterApplication"
    android:label="flutterappjava"
    android:icon="@mipmap/ic_launcher">
    <activity
        android:name=".MainActivity"
        android:launchMode="singleTop"
        android:theme="@style/LaunchTheme"
        .................
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
            <action android:name="android.intent.action.SEND" />
            <category android:name="android.intent.category.DEFAULT" />
            <data android:mimeType="text/plain" />
        </intent-filter>
    </activity>

Answer 1

I found a solution and I hope it's a good solution. I separated the action.send intent to a different java file and assigned it to a different activity in the manifest file.

<application
android:name="io.flutter.app.FlutterApplication"
android:label="flutterappjava"
android:icon="@mipmap/ic_launcher">
<activity
    android:name=".MainActivity"
    android:launchMode="singleTop"
    android:theme="@style/LaunchTheme"
    .................
    <intent-filter>
        <action android:name="android.intent.action.MAIN"/>
        <category android:name="android.intent.category.LAUNCHER"/>
        <action android:name="android.intent.action.SEND" />
        <category android:name="android.intent.category.DEFAULT" />
        <data android:mimeType="text/plain" />
    </intent-filter>
 <activity android:name=".tempAct">
 <intent-filter>
            <action android:name="android.intent.action.SEND" />
            <category android:name="android.intent.category.DEFAULT" />
            <data android:mimeType="text/plain" />
 </intent-filter>
  </activity>
</activity>