Fcm令牌获取null

Question

我使用了以下依赖项。它告诉我“默认的FirebaseApp在这个过程中没有初始化。请确保首先调用FirebaseApp.InitializeApp（Context）。”

dependencies 
{
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2',      
{
    exclude group: 'com.android.support', module: 'support-annotations'
})

/*compile('org.apache.httpcomponents:httpcore:4.4.1') {
    exclude group: 'org.apache.httpcomponents', module: 'httpclient'

}*/

/*Button*/
//Google Analytics
//Sweet Alert Dialog

compile('com.google.api-client:google-api-client-android:1.22.0')
compile('com.google.apis:google-api-services-script:v1-rev6-1.22.0') {
    exclude group: 'org.apache.httpcomponents'
}
/*Button*/
//Google Analytics
//Sweet Alert Dialog
compile 'pub.devrel:easypermissions:0.1.5'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.github.markushi:circlebutton:1.1'
compile 'com.github.dmytrodanylyk.android-process-button:library:1.0.4'
compile 'cn.pedant.sweetalert:library:1.3'
compile 'me.spark:submitbutton:1.0.1'
compile 'com.android.support:support-v4:23.4.0'
compile 'com.google.firebase:firebase-messaging:9.8.0'
compile 'com.google.android.gms:play-services-auth:9.8.0'
compile 'com.google.android.gms:play-services-appindexing:9.8.0'
testCompile 'junit:junit:4.12'
compile files('libs/org.apache.http.legacy.jar')
}

Answer 1

这与您的依赖关系不大，您需要在代码中使用Firebase之前初始化它。

因此，在一开始（或者至少在您引用Firebase之前）添加以下内容：

FirebaseApp.initializeApp(getContext());