Android AdMob 实施播放服务问题

Android AdMob implementation play-services problem

我正在尝试将 AdMob 添加到我的应用程序中。我将下面的行添加到 build.gradle

implementation 'com.google.android.gms:play-services-ads:18.2.0'

但是,同步后,我开始收到以下错误:

ERROR: Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91 is also present at [androidx.core:core:1.0.0] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory). Suggestion: add 'tools:replace="android:appComponentFactory"' to element at AndroidManifest.xml:6:5-28:19 to override."

我该怎么办?

build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    buildToolsVersion "29.0.1"
    defaultConfig {
        applicationId "com.bartech.myapp"
        minSdkVersion 21
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}    
dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.android.support:support-v4:28.0.0'
    implementation 'com.android.support:design:28.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation 'com.readystatesoftware.sqliteasset:sqliteassethelper:+'
    implementation 'com.android.support:design:28.0.0'
    implementation 'com.google.android.gms:play-services-ads:18.2.0'
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.bartech.myapp">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>


        <activity android:name="com.bartech.myapp.quiz1"/>
        <activity android:name="com.bartech.myapp.summary"/>
        <activity android:name="com.bartech.myapp.info"/>

    </application>

</manifest>

出现问题是因为您正在使用 支持库,例如 support:appcompatsupport:support-v4 以及最新版本的 play-services-ads ( 18.2.0) 已经迁移到 AndroidX。

所以,您收到此错误是因为您的应用正在使用支持库,但 play-services-ads 已经在使用 AndroidX。

为了修复:

1) 将您的应用迁移到 AndroidX(推荐)。更多信息 HERE

2) 使用旧版本的 play-services-ads(例如 'com.google.android.gms:play-services-ads:16.0.0'。)

第二个选项可能会解决您的问题,因为 play-services-ads:16.0.0 仍在使用支持库。