尝试在Firebase测试实验室中调用虚拟方法android.arch.lifecycle.Lifecycle

概述在真实设备上(Nexus5,Leeco,Xiaomi,…).observe方法有效,但是当我在Firebase测试实验室中开始测试时,应用程序在许多设备上以异常启动时崩溃(例如,具有22api的虚拟Nexus10))：java.lang.RuntimeException:UnabletostartactivityComponentInfo...Causedby:java.lang.Nu

在真实设备上(Nexus 5,Leeco,Xiaomi,…).observe方法有效,但是当我在Firebase测试实验室中开始测试时,应用程序在许多设备上以异常启动时崩溃(例如,具有22 API的虚拟Nexus 10) )：

java.lang.RuntimeException: Unable to start activity ComponentInfo ...Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'androID.arch.lifecycle.lifecycle$State androID.arch.lifecycle.lifecycle.getCurrentState()' on a null object reference  at androID.arch.lifecycle.liveData.observe(liveData.java:188)

在活动中：

public class ActivityCabinet extends AppCompatActivity {  @OverrIDe  protected voID onCreate(Bundle savedInstanceState) {      super.onCreate(savedInstanceState);      setContentVIEw(R.layout.activity_cabinet);      vmCabinet = viewmodelProvIDers.of(this).get(VmActivityCabinet.class);      vmCabinet.enumSIDeNavigationMode.setValue(EnumSIDeNavigationMode.MAIN_List);      // crash happens here in Test Lab      vmCabinet.enumSIDeNavigationMode.observe(this, enumSIDeNavigationMode -> {        ...      }  }}

在gradle中：

dependencIEs {implementation filetree(include: ['*.jar'], dir: 'libs')implementation 'com.androID.support:appcompat-v7:27.0.0'implementation 'com.androID.support:customtabs:27.0.0'implementation 'com.androID.support:cardvIEw-v7:27.0.0'implementation 'com.androID.support:recyclervIEw-v7:27.0.0'implementation 'com.androID.support:design:27.0.0'implementation 'com.androID.support:support-v4:27.0.0'implementation 'com.androID.support:Transition:27.0.0'implementation 'com.androID.support.constraint:constraint-layout:1.0.2'implementation 'androID.arch.lifecycle:extensions:1.0.0-rc1'implementation 'androID.arch.persistence.room:runtime:1.0.0-rc1'annotationProcessor "androID.arch.persistence.room:compiler:1.0.0-rc1"implementation 'com.androID.support:multIDex:1.0.2'implementation 'me.relex:circleindicator:1.2.2@aar'implementation 'com.Google.androID.exoplayer:exoplayer:r2.5.0-beta1'implementation 'com.Google.code.gson:gson:2.8.0'implementation 'com.squareup.retrofit2:retrofit:2.3.0'implementation 'com.squareup.retrofit2:converter-scalars:2.3.0'implementation 'com.squareup.retrofit2:converter-gson:2.3.0'implementation 'com.squareup.okhttp3:logging-interceptor:3.8.1'implementation 'com.squareup.picasso:picasso:2.5.2'implementation 'com.thoughtbot:expandablerecyclervIEw:1.3'implementation 'com.facebook.androID:facebook-android-sdk:4.25.0'implementation 'com.appsflyer:af-androID-sdk:4.8.3@aar'implementation 'com.Google.firebase:firebase-core:11.4.2'implementation 'com.Google.androID.gms:play-services-ads:11.4.2'implementation('com.crashlytics.sdk.androID:crashlytics:2.7.1@aar') {    transitive = true}}apply plugin: 'com.Google.gms.Google-services'

主要的

buildscript {    repositorIEs {        Google()        jcenter()        mavenLocal()        mavenCentral()        maven { url 'https://maven.Google.com' }        maven { url 'https://maven.fabric.io/public'}        maven { url 'https://oss.sonatype.org/content/repositorIEs/snapshots'}    }    dependencIEs {        classpath 'com.androID.tools.build:gradle:3.1.0-Alpha01'        classpath 'com.Google.gms:Google-services:3.1.1'        classpath 'io.fabric.tools:gradle:1.24.1'    }}allprojects {    repositorIEs {        Google()        jcenter()        mavenLocal()        mavenCentral()        maven { url 'https://maven.fabric.io/public'}        maven { url 'https://oss.sonatype.org/content/repositorIEs/snapshots'}        maven { url "https://maven.Google.com"}    }}

我无法理解测试实验室中设备异常的原因.

解决方法:

同样在这里.互联网上会显示多个报告.似乎是在10月27日左右开始的.我通过选择退出Google Play控制台中的新功能“发布前报告版本”(发布管理 – > Pre laucnh报告 – >设置 – >发布前报告版本)解决了这个问题

总结

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