Android 9 Pie崩溃（com.google.android.gms ... ClassNotFoundException）

Question

我有一个在Android上发布的Unity3D游戏，到目前为止它运行良好。但是，Android Vitals仪表板现在报告很多崩溃。这是详细信息：

By Android version: Android 9   4500    100.0%

堆栈跟踪：

java.lang.Error: FATAL EXCEPTION [Thread-360]
Unity version     : 2017.3.1p3
Device model      : Google Pixel
Device fingerprint: google/sailfish/sailfish:9/PQ2A.190305.002/5240760:user/release-keys
Caused by
  at lt.b (com.google.android.gms.policy_ads_fdr_dynamite@30000@30000.238272502.238272502:2)
  at ls.a (com.google.android.gms.policy_ads_fdr_dynamite@30000@30000.238272502.238272502:1)
  at lu.a (com.google.android.gms.policy_ads_fdr_dynamite@30000@30000.238272502.238272502:18)
  at com.google.android.gms.ads.internal.util.ar.a (com.google.android.gms.policy_ads_fdr_dynamite@30000@30000.238272502.238272502:10)
  at kx.a (com.google.android.gms.policy_ads_fdr_dynamite@30000@30000.238272502.238272502:7)
  at kx.run (com.google.android.gms.policy_ads_fdr_dynamite@30000@30000.238272502.238272502:2)
Caused by: java.lang.ClassNotFoundException: 
  at dalvik.system.BaseDexClassLoader.findClass (BaseDexClassLoader.java:134)
  at java.lang.ClassLoader.loadClass (ClassLoader.java:379)
  at ac.loadClass (com.google.android.gms.dynamite_dynamiteloader@16089081@16.0.89 (100400-239467275):4)
  at java.lang.ClassLoader.loadClass (ClassLoader.java:312)

我的AndroidResolverDependencies.xml档案：

<dependencies>
  <packages>
    <package>com.android.support:customtabs:[26.0.0, 27.2.0[</package>
    <package>com.android.support:support-v4:[26.0.0, 27.2.0[</package>
    <package>com.google.android.gms:play-services-ads:17.2.0</package>
    <package>com.google.android.gms:play-services-analytics:11.8.0</package>
    <package>com.google.android.gms:play-services-base:[10.2.1, 12.1.0[</package>
    <package>com.google.android.gms:play-services-location:[10.2.1, 12.1.0[</package>
    <package>com.google.firebase:firebase-messaging:[10.2.1, 12.1.0[</package>
  </packages>
  <files>
    <file>Assets/Plugins/Android/android.arch.core.common-1.1.0.jar</file>
    <file>Assets/Plugins/Android/android.arch.core.runtime-1.1.0.aar</file>
    <file>Assets/Plugins/Android/android.arch.lifecycle.common-1.1.0.jar</file>
    <file>Assets/Plugins/Android/android.arch.lifecycle.livedata-core-1.1.0.aar</file>
    <file>Assets/Plugins/Android/android.arch.lifecycle.runtime-1.1.0.aar</file>
    <file>Assets/Plugins/Android/android.arch.lifecycle.viewmodel-1.1.0.aar</file>
    <file>Assets/Plugins/Android/com.android.support.customtabs-27.1.1.aar</file>
    <file>Assets/Plugins/Android/com.android.support.support-annotations-27.1.1.jar</file>
    <file>Assets/Plugins/Android/com.android.support.support-compat-27.1.1.aar</file>
    <file>Assets/Plugins/Android/com.android.support.support-core-ui-27.1.1.aar</file>
    <file>Assets/Plugins/Android/com.android.support.support-core-utils-27.1.1.aar</file>
    <file>Assets/Plugins/Android/com.android.support.support-fragment-27.1.1.aar</file>
    <file>Assets/Plugins/Android/com.android.support.support-media-compat-27.1.1.aar</file>
    <file>Assets/Plugins/Android/com.android.support.support-v4-27.1.1.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-ads-17.2.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-ads-base-17.2.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-ads-identifier-16.0.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-ads-lite-17.2.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-analytics-16.0.8.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-analytics-impl-16.0.8.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-base-16.1.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-basement-16.2.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-gass-17.2.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-location-16.0.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-measurement-base-16.3.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-measurement-sdk-api-16.3.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-places-placereport-16.0.0.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-stats-16.0.1.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-tagmanager-v4-impl-16.0.8.aar</file>
    <file>Assets/Plugins/Android/com.google.android.gms.play-services-tasks-16.0.1.aar</file>
    <file>Assets/Plugins/Android/com.google.auto.value.auto-value-annotations-1.6.jar</file>
    <file>Assets/Plugins/Android/com.google.firebase.firebase-common-16.1.0.aar</file>
    <file>Assets/Plugins/Android/com.google.firebase.firebase-iid-17.1.2.aar</file>
    <file>Assets/Plugins/Android/com.google.firebase.firebase-iid-interop-16.0.1.aar</file>
    <file>Assets/Plugins/Android/com.google.firebase.firebase-measurement-connector-17.0.1.aar</file>
    <file>Assets/Plugins/Android/com.google.firebase.firebase-messaging-17.6.0.aar</file>
  </files>
</dependencies>

Target API level: 28
Minimum API level: 16

I've seen a similar thread in Google AdMob's discussion group suggesting to add the following to the AndroidManifest.xml file:

<uses-library android:name="org.apache.http.legacy" android:required="false" />

However:

1. I'm not sure the problem is caused by any apache-related API.
2. I'm afraid this will restrict the number of installs in my app since it will be available to a smaller audience in Google Play due to the uses-library declaration.

Answer 1

根据行为更改：定位到API级别28+的应用

Apache HTTP客户端弃用

在Android 6.0中，我们删除了对Apache HTTP客户端的支持。从Android 9开始，该库已从bootclasspath中删除，并且默认情况下不适用于应用程序。要继续使用Apache HTTP客户端，面向Android 9及更高版本的应用可以在其中添加以下内容AndroidManifest.xml：

<uses-library android:name="org.apache.http.legacy" android:required="false"/>

注意： android：required =“ false”属性对于SDK最低为23或更低的应用是必需的，因为在API级别低于24的设备上，org.apache.http.legacy库不可用。（在这些设备上，bootclasspath上提供了Apache HTTP类。）

作为使用运行时Apache库的替代方法，应用程序可以在APK中捆绑自己的org.apache.http库版本。如果这样做，则必须重新打包该库（使用Jar Jar之类的实用程序），以避免运行时提供的类具有类兼容性问题。