Flutter：应用程序的 AndroidManifest.xml 中的位置包错误元数据标记不存在

Question

描述错误 我想安装 ^2.3.5 版本的位置包，但我的设备上出现这样的消息错误：

java.lang.IllegalStateException: A required meta-data tag in your app's AndroidManifest.xml does not exist.  You must have the following declaration within the <application> element:     <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
    at com.google.android.gms.common.GooglePlayServicesUtilLight.isGooglePlayServicesAvailable(Unknown Source)
    at com.google.android.gms.common.GoogleApiAvailabilityLight.isGooglePlayServicesAvailable(Unknown Source)
    at com.google.android.gms.common.GoogleApiAvailability.isGooglePlayServicesAvailable(Unknown Source)
    at com.google.android.gms.common.internal.GoogleApiAvailabilityCache.getClientAvailability(Unknown Source)
    at com.google.android.gms.common.api.internal.GoogleApiManager$zaa.connect(Unknown Source)
    at com.google.android.gms.common.api.internal.GoogleApiManager.zab(Unknown Source)
    at com.google.android.gms.common.api.internal.GoogleApiManager.handleMessage(Unknown Source)
    at android.os.Handler.dispatchMessage(Handler.java:98)
    at android.os.Looper.loop(Looper.java:165)
    at android.os.HandlerThread.run(HandlerThread.java:61)

我的配置

Android -> build.gradle

buildscript {
    // ext.kotlin_version = '1.2.71'
    ext.kotlin_version = '1.3.21'
    repositories {
        google()
        jcenter()
    }

    dependencies {
        // classpath 'com.android.tools.build:gradle:3.2.1'
        classpath 'com.android.tools.build:gradle:3.3.0'
        classpath 'com.google.gms:google-services:4.2.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

gradle.properties

org.gradle.jvmargs=-Xmx1536M

android.useAndroidX=true
android.enableJetifier=true

Android -> 应用程序 -> build.gradle

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
    compileSdkVersion 28

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "id.zeffry.great_place_app"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            // TODO: Add your own signing config for the release build.
            // Signing with the debug keys for now, so `flutter run --release` works.
            signingConfig signingConfigs.debug
        }
    }
}

flutter {
    source '../..'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'

}

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="id.zeffry.great_place_app">
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <!-- 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:name="io.flutter.app.FlutterApplication"
        android:label="great_place_app"
        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.app.android.SplashScreenUntilFirstFrame"
                android:value="true" />
            <meta-data
                android:name="com.google.android.gms.version"
                android:value="@integer/google_play_services_version" />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
    </application>
</manifest>

我确定在 AndroidManifest.xml 中添加了这样的元标记谷歌服务

<meta-data
                android:name="com.google.android.gms.version"
                android:value="@integer/google_play_services_version" />

测试日期： - Android，API Level 24 Nougat 使用真实设备

你能帮我解决这个错误吗？

谢谢

Answer 1

您将标签放在<Activity> 内。它应该在<Application> 内：

<application
        android:name="io.flutter.app.FlutterApplication"
        android:label="great_place_app"
        android:icon="@mipmap/ic_launcher">

        <!-- here -->
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

        <activity ...>
           ...
        </activity>
    </application>

如果您使用对资源 @integer/google_play_services_version 的引用，请确保您在资源中具有此值，或者只需将引用替换为您的密钥。

要将价值放在资源中，请在 /res/values 中创建 .xml 文件：

<resources>
    <integer name="google_play_services_version">value</integer>
</resources>