Android

Question

我在项目中遇到问题，包括 Google 服务。

错误

按照these instructions, and also referring to the docs设置，我在apply plugins属性遇到问题：由于我不知道的原因，即使当您单击 'Add FCM to your app' 时属性是 自动填充的 ，它也无法正确获取（版本错误）（紫色）。如您所见，URL 中没有任何版本号。我也遇到了 implementation 'com.google.firebase:firebase-messaging:17.1.0' 属性.

的问题

我将在我的清单和 gradle 文件中添加以供参考：

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.nationscompanies.uordermobile">
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.VIBRATE"/>
    <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"
        android:fullBackupContent="@xml/backup_descriptor">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service
            android:name=".MyAndroidFirebaseMessagingService">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT"/>
            </intent-filter>
        </service>
        <service
            android:name=".MyAndroidFirebaseInstanceIdService">
            <intent-filter>
                <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
            </intent-filter>
        </service>
    </application>
</manifest>

build.gradle（项目）

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.3'
        classpath 'com.google.gms:google-services:3.1.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

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

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

build.gradle（应用程序）

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.nationscompanies.uordermobile"
        minSdkVersion 22
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    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'
    api 'com.google.android.gms:play-services-gcm:15.0.1'
    api 'com.google.firebase:firebase-core:16.0.1'
    api 'com.google.firebase:firebase-messaging:17.1.0'
}

apply plugin: 'com.google.gms.google-services' // this is the line that gets autofilled when you click on the 'Add FCM to your app' button from Firebase manager

完整的错误信息

请通过更新 google-services 插件的版本（有关最新版本的信息可在 https://bintray.com/android/android-tools/com.google.gms.google-services/ 获得）或更新com.google.android.gms 到 15.0.1.

然后是一大串错误：

Answer 1

改变这个：

classpath 'com.google.gms:google-services:3.1.1'

进入这个：

classpath 'com.google.gms:google-services:4.0.2'

防止出现版本冲突错误

点击此处了解更多信息：

https://android-developers.googleblog.com/2018/05/announcing-new-sdk-versioning.html

Beginning with version 15 of all Play services and Firebase libraries, each Maven dependency matching com.google.android.gms:play-services-* and com.google.firebase:firebase-* is no longer required to have the same version number in order to work correctly at build time and at run time.

In order to support this change in versioning, the Play services Gradle plugin has been updated to 3.0.0(which is the first version).

Android - 设置 Google Play 服务和 Firebase - Gradle 构建错误

Android - Set up Google Play Services and Firebase - Gradle build error

gradle

firebase

google-play-services