我正在尝试在我的 flutter 项目中使用 "google_mobile_ads" 但我正在将其迁移到 Android 嵌入 v2

Question

插件 google_mobile_ads 要求您的应用迁移到 Android 嵌入 v2。按照 https://flutter.dev/go/android-project-migration 上的步骤操作并重新运行此命令。

所以我尝试按照这些步骤操作，但我无法在我的项目中的任何地方找到“MainActivity.java”，因此无法继续

MyProject tree

migration error

https://flutter.dev/go/android-project-migration 这是 Link 建议遵循的

Answer 1

只需在您的项目中打开此文件并复制 >> 粘贴此代码行即可.......确保删除此文件中的所有代码行并将其替换为这个新的一个。

1: MainActivity.java

package co.appbrewery.flash_chat;

import io.flutter.embedding.android.FlutterActivity;

public class MainActivity extends FlutterActivity {
  
}

2: styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
    <item name="android:windowBackground">@drawable/launch_background</item>
</style>
</resources>

3: AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"   
          package="co.appbrewery.flash_chat">  
<!-- io.flutter.app.FlutterApplication is an android.app.Application that
     calls FlutterMain.startInitialization(this); in its onCreate method.
     In most cases you can leave this as-is, but you if you want to provide
     additional functionality it is fine to subclass or reimplement
     FlutterApplication and put your custom class here. -->
<application android:label="flash_chat" android:icon="@mipmap/ic_launcher">
    <activity android:name=".MainActivity" android:launchMode="singleTop" android:theme="@style/LaunchTheme" android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode" android:hardwareAccelerated="true" android:windowSoftInputMode="adjustResize">
        <!-- This keeps the window background of the activity showing
              until Flutter renders its first frame. It can be removed if
              there is no splash screen (such as the default splash screen
              defined in @style/LaunchTheme). -->
        <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>
    <meta-data android:name="flutterEmbedding" android:value="2" />
</application>
</manifest>

我正在尝试在我的 flutter 项目中使用 "google_mobile_ads" 但我正在将其迁移到 Android 嵌入 v2

I am trying to use "google_mobile_ads" in my flutter project but I am getting this migrated to the Android embedding v2

firebase

flutter

admob

googlemobileads