Android Backup Manager仅适用于本地传输

Question

我已经尝试在我的应用程序上实现备份一个多月了，但直到现在还没有成功。我已经完成了Google docs通知的每一个步骤：注册在Google Service更改清单上(allowBackup、backupAgent和backup.api_key（Google Service register）等等...

清单部分：

<application
   android:allowBackup="true"
   android:backupAgent="my.package.MyBackupManagerClass">

<meta-data android:name="com.google.android.backup.api_key" 
   android:value="my-generated-key-by-google-service" />

bmgr list transports
  * android/com.android.internal.backup.LocalTransport
    com.google.android.gms/.backup.BackupTransportService

我要提到的一点是，当我运行：bmgr backup bmgr run

run命令之后，在logcat上会显示很多“现在分段备份的”（列表中也会显示我的apps包），但它发生得非常快，而且实际上似乎并没有进行备份，毕竟，甚至连我的mybackuphelper.oncreate（）都没有被调用：

02-12 21:13:28.889: D/BackupManagerService(547): Now staging backup of com.google.android.talk
02-12 21:13:28.904: D/BackupManagerService(547): Now staging backup of com.google.android.dialer
02-12 21:13:28.907: D/BackupManagerService(547): Now staging backup of com.android.providers.settings
02-12 21:13:28.910: D/BackupManagerService(547): Now staging backup of com.sirma.mobile.bible.android
02-12 21:13:28.914: D/BackupManagerService(547): Now staging backup of com.android.sharedstoragebackup
02-12 21:13:28.919: D/BackupManagerService(547): Now staging backup of com.google.android.gm
02-12 21:13:28.922: D/BackupManagerService(547): Now staging backup of com.android.providers.userdictionary
02-12 21:13:28.926: D/BackupManagerService(547): Now staging backup of com.google.android.apps.genie.geniewidget
02-12 21:13:28.963: I/GmsBackupTransport(1409): Next backup will happen in 86399923 millis.
02-12 21:13:28.967: I/BackupManagerService(547): Backup pass finished.

Answer 1

我也遇到过同样的情况--当我运行手动备份（通过adb shell命令）时是工作的，但只使用本地传输。对我来说，解决方案是发布Google Play服务，因为我测试的数据备份服务没有发布GP服务。如果您正在使用proguard,请同时检查proguard配置