谷歌地图试图创建未注册类型的平台视图

Question

我有我正在开发的应用程序，它在升级 1.12 之前的 Android 项目之前运行良好，而不是给我一个错误 google maps Trying to create a platform view of unregistered type

并使用我在 android 中使用的相同 google api 密钥在 IOS 中运行良好

我做flutter clean了不止一个，卸载应用程序并使用不同的模拟器，错误是一样的

androidManifest.xml

  <manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="come.example.appid">

    <uses-permission android:name="android.permission.INTERNET"/>
    <!-- Speech To Text configration -->
    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
    <!-- Geolocator Configration Start -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <!-- Geolocator Configration end -->
    <!-- Local Notification -->
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
    <!-- Local Notification -->

    <application
        tools:replace="android:label"
        android:label="appname"
        android:icon="@mipmap/launcher_icon">

        <!-- Google Maps -->
        <meta-data android:name="com.google.android.geo.API_KEY"
             android:value="APIKeyyyyyyyyyyyy-xxxxxxxx"/>

        <!-- Google Maps -->
        <meta-data
            android:name="com.google.firebase.messaging.default_notification_channel_id"
            android:value="@string/default_notification_channel_id"/>

        <!-- Facebook Configration Start -->
        <!-- <meta-data android:name="com.facebook.sdk.ApplicationId"
            android:value="@string/facebook_app_id"/> -->


        <activity android:name="com.facebook.FacebookActivity"
            android:configChanges=
                    "keyboard|keyboardHidden|screenLayout|screenSize|orientation"
            android:label="@string/app_name" />

        <activity
            android:name="com.facebook.CustomTabActivity"
            android:exported="true">

            <!-- FCM Configration start -->
            <intent-filter>
                <action android:name="FLUTTER_NOTIFICATION_CLICK" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
            <!-- FCM Configration end -->

            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data android:scheme="@string/fb_login_protocol_scheme" />
            </intent-filter>
        </activity>
        <!-- Facebook Configration end -->

        <!-- Local Notification -->
        <receiver android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationReceiver" />
        <receiver android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationBootReceiver">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED"></action>
            </intent-filter>
        </receiver>


        <activity
            android:name="io.flutter.embedding.android.FlutterActivity"
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">

            <!-- Specify that the launch screen should continue being displayed -->
            <!-- until Flutter renders its first frame. -->
            <meta-data
                android:name="io.flutter.embedding.android.SplashScreenDrawable"
                android:resource="@drawable/launch_background" />

            <!-- Theme to apply as soon as Flutter begins rendering frames -->
            <meta-data
                android:name="io.flutter.embedding.android.NormalTheme"
                android:resource="@style/NormalTheme"
                />

            <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>

错误是

E/flutter（8262）：[错误：flutter/lib/ui/ui_dart_state.cc（157）]未处理的异常：PlatformException（错误，java.lang.IllegalStateException：试图创建未注册类型的平台视图：plugins.flutter。 io/google_maps E/flutter (8262): 在 io.flutter.plugin.platform.PlatformViewsController$1.createPlatformView(PlatformViewsController.java:91) E/flutter (8262): 在 io.flutter.embedding.engine.systemchannels.PlatformViewsChannel$1 .create(PlatformViewsChannel.java:96) E/flutter (8262): 在 io.flutter.embedding.engine.systemchannels.PlatformViewsChannel$1.onMethodCall(PlatformViewsChannel.java:60) E/flutter (8262): 在 io.flutter。 plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:231) E/flutter（8262）：

Answer 1

我也遇到了同样的 android 错误，但我的代码在执行以下步骤后可以正常工作：

1. 清理应用数据并卸载当前应用。
2. 运行 flutter clean 和 flutter build。
3. 再次运行你的应用

Answer 2

您的minSdkVersion人数必须大于 20

1. flutter clean
2. flutter run

解决了我的问题