我将Firebase添加到我的Android项目中,以使用Firebase云消息传递。我按照文档的指示操作,但没有发现调用
我的应用程序工作正常,只有一次它崩溃并出现以下错误。
FirebaseApp.initializeApp()
的任何说明。我的应用程序工作正常,只有一次它崩溃并出现以下错误。
Caused by: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.my.app. Make sure to call FirebaseApp.initializeApp(Context) first.
at com.google.firebase.FirebaseApp.getInstance(Unknown Source)
at com.google.firebase.iid.FirebaseInstanceId.getInstance(Unknown Source)
at com.my.app.core.ApplicationEx.onCreate(ApplicationEx.java:79)
当我查找错误时,解决方法是在启动时调用FirebaseApp.initializeApp()
。
我想知道这是否真的必要,因为文档没有提到它,而且我的应用程序(大多数情况下)没有问题。
有人知道是否需要调用FirebaseApp.initializeApp()
,还有什么其他原因可能会导致我上面提到的错误吗?
以下是我的build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
defaultConfig {
applicationId "com.my.app"
minSdkVersion 17
targetSdkVersion 26
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
flavorDimensions "appType"
productFlavors {
passenger {
dimension "appType"
applicationId "com.my.app.passenger"
versionCode 1
versionName "1"
}
driver {
dimension "appType"
applicationId "com.my.app.driver"
versionCode 1
versionName "1"
}
admin {
dimension "appType"
applicationId "com.my.app.admin"
versionCode 1
versionName "1"
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
testCoverageEnabled true
}
packagingOptions {
exclude 'META-INF/ASL2.0'
exclude 'META-INF/LICENSE'
exclude 'META-INF/NOTICE'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/MANIFEST.MF'
}
}
}
repositories {
maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
}
dependencies {
implementation project(path: ':cards')
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "com.android.support:design:${supportVersion}"
implementation "com.android.support:support-v4:${supportVersion}"
implementation "com.android.support:appcompat-v7:${supportVersion}"
implementation "com.android.support:cardview-v7:${supportVersion}"
implementation "com.android.support:gridlayout-v7:${supportVersion}"
implementation "com.google.android.gms:play-services-maps:${googlePlayServicesVersion}"
implementation "com.google.android.gms:play-services-location:${googlePlayServicesVersion}"
implementation "com.google.android.gms:play-services-places:${googlePlayServicesVersion}"
implementation "com.google.android.gms:play-services-gcm:${googlePlayServicesVersion}"
implementation "com.google.android.gms:play-services-ads:${googlePlayServicesVersion}"
implementation "com.google.android.gms:play-services-auth:${googlePlayServicesVersion}"
implementation 'com.google.maps:google-maps-services:0.2.5'
implementation "com.google.firebase:firebase-messaging:${googlePlayServicesVersion}"
implementation "com.loopj.android:android-async-http:${asyncHttpVersion}"
implementation "com.android.support.test.espresso:espresso-idling-resource:${espressoVersion}"
implementation 'com.android.support:multidex:1.0.2'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
implementation 'org.slf4j:slf4j-api:1.7.25'
implementation 'com.github.tony19:logback-android-core:1.1.1-6'
implementation 'ch.acra:acra:4.9.2'
implementation('com.github.tony19:logback-android-classic:1.1.1-6') {
exclude group: 'com.google.android', module: 'android' // workaround issue #73
}
testImplementation 'org.testng:testng:6.9.6'
testImplementation 'org.mockito:mockito-core:1.10.19'
testImplementation 'org.powermock:powermock-api-mockito:1.6.5'
testImplementation 'org.powermock:powermock-module-junit4-rule-agent:1.6.5'
testImplementation 'org.powermock:powermock-module-junit4-rule:1.6.5'
testImplementation 'org.powermock:powermock-module-junit4:1.6.5'
androidTestImplementation "com.android.support:support-annotations:${supportVersion}"
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test:rules:1.0.1'
androidTestImplementation 'org.testng:testng:6.9.6'
androidTestImplementation 'org.mockito:mockito-core:1.10.19'
androidTestImplementation 'com.google.dexmaker:dexmaker:1.2'
androidTestImplementation 'com.google.dexmaker:dexmaker-mockito:1.2'
androidTestImplementation 'com.android.support.test.uiautomator:uiautomator-v18:2.1.3'
androidTestImplementation("com.android.support.test.espresso:espresso-core:${espressoVersion}", {
exclude group: 'com.android.support', module: 'support-annotations'
})
}
apply plugin: 'com.google.gms.google-services'
com.my.app.core.ApplicationEx
中有什么? - Doug StevensonApplicationEx
是android.app.Application
的一个子类,在清单文件中指定为应用程序类。 - Lahiru ChandimaApplicationEx.onCreate()
中,我尝试获取消息令牌 (FirebaseInstanceId.getInstance().getToken()
) 并将其发送到后端,以便后端可以将令牌注册到消息主题。我自己不启动任何其他进程,但我使用的崩溃报告库ACRA
使用另一个进程。 - Lahiru Chandima