具有新依赖项的Firestore崩溃应用

Question

昨天，我使用来更新Firestore 17.1.1和Google Services 的依赖关系4.1.0。现在启动应用程序时会崩溃。

注意：

如果我将Google Services更改为4.0.2，则Firestore会正确初始化，并且该应用程序将按预期运行。

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

---

更新：

转变为4.2.0作品。

---

日志：

Default FirebaseApp failed to initialize because no default options were found. This usually means that com.google.gms:google-services was not applied to your gradle project.
... I/FirebaseInitProvider: FirebaseApp initialization unsuccessful

错误：

java.lang.RuntimeException: Unable to start activity ComponentInfo{\...\/\...\.ui.MessageActivity}: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process \...\. Make sure to call FirebaseApp.initializeApp(Context) first.
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
        at android.app.ActivityThread.-wrap11(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6494)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
     Caused by: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process \...\. Make sure to call FirebaseApp.initializeApp(Context) first.
        at com.google.firebase.FirebaseApp.getInstance(com.google.firebase:firebase-common@@16.0.2:240)
        at com.google.firebase.firestore.FirebaseFirestore.getInstance(com.google.firebase:firebase-firestore@@17.1.1:68)
        at \...\.ServiceLocator.provideFirestore(ServiceLocator.java:18)
        at \...\.ServiceLocator.provideMessageRepository(ServiceLocator.java:28)
        at \...\.ServiceLocator.provideMessageViewModelFactory(ServiceLocator.java:33)
        at \...\.ui.MessageActivity.onCreate(MessageActivity.java:112)
        at android.app.Activity.performCreate(Activity.java:7009)
        at android.app.Activity.performCreate(Activity.java:7000)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856) 
        at android.app.ActivityThread.-wrap11(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6494) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

gradle项目：

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.0-alpha13'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.google.gms:google-services:4.1.0'
    }
}

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

gradle应用程序：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "..."
        minSdkVersion 22
        targetSdkVersion 28
        versionCode 8
        versionName "1.0.8"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    // ...
    buildToolsVersion '28.0.3'
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'androidx.appcompat:appcompat:1.0.0'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
    implementation 'com.google.android.material:material:1.0.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'androidx.recyclerview:recyclerview:1.0.0'
    // ...
    // Firestore
    implementation 'com.google.firebase:firebase-core:16.0.4'
    implementation 'com.google.firebase:firebase-firestore:17.1.1'
    implementation 'com.google.firebase:firebase-auth:16.0.4'
    implementation 'com.google.android.gms:play-services-auth:16.0.1'
    implementation 'com.google.firebase:firebase-ads:16.0.1'
    implementation 'com.firebaseui:firebase-ui-auth:4.1.0'
    // Crash Reports
    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.5'
}

apply plugin: 'com.google.gms.google-services'

Answer 1

无需使用FirebaseApp.initializeApp(context)。仅使用依赖项就足够了。因此，如果您执行标准集成，则无需手动调用它，因为它将通过启动自动调用启动ContentProvider，该启动将在任何其他Activity或Service之前初始化。您可以阅读Doug关于如何在Android上初始化Firebase的文章。

您的代码中的问题是您正在为项目使用alpha13gradle版本。要解决此问题，请更改以下代码行：

classpath 'com.android.tools.build:gradle:3.3.0-alpha13'

至

classpath 'com.android.tools.build:gradle:3.2.0'

将解决这个问题。