Migrate Flutter projects - flutter

Question

The following message appeared while I was creating an existing project:
Warning: Your Flutter application is created using an older version of the Android
embedding. It's being deprecated in favor of Android embedding v2.

Answer 1

In your project, add this below lines in AndroidManifest.xml after activity tag inside appication tag:
<meta-data
android:name="flutterEmbedding"
android:value="2" />
For example my AndroidManifest.xml:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example_app">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:label="Example App"
android:icon="#mipmap/ic_launcher"
android:usesCleartextTraffic="true"
android:allowBackup="false">
<activity
android:name=".MainActivity"
android:launchMode="singleTop"
android:theme="#style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize">
<!-- Specifies an Android theme to apply to this Activity as soon as
the Android process has started. This theme is visible to the user
while the Flutter UI initializes. After that, this theme continues
to determine the Window background behind the Flutter UI. -->
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="#style/NormalTheme"
/>
<!-- Displays an Android View that continues showing the launch screen
Drawable until Flutter paints its first frame, then this splash
screen fades out. A splash screen is useful to avoid any visual
gap between the end of Android's launch screen and the painting of
Flutter's first frame. -->
<meta-data
android:name="io.flutter.embedding.android.SplashScreenDrawable"
android:resource="#drawable/launch_background"
/>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<!-- HERE HERE HERE HERE -->
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>
</manifest>