我一直在关注Android的Creating a Sync Adapter (BasicSyncAdapter)以开始我自己的同步服务逻辑。
问题:在调用AccountManager.addAccountExplicitly()
时,会引发SecurityException
,声称来电者与身份验证员UID之间不匹配:
java.lang.SecurityException: caller uid 10048 is different than the authenticator's uid
at android.os.Parcel.readException(Parcel.java:1425)
at android.os.Parcel.readException(Parcel.java:1379)
at android.accounts.IAccountManager$Stub$Proxy.addAccount(IAccountManager.java:580)
at android.accounts.AccountManager.addAccountExplicitly(AccountManager.java:565)
应用程序/库结构:我的应用程序分为两个模块(gradle / android studio项目):
com.example.mylib
),其中包含定义同步服务,适配器,身份验证器等所需的源和xml。com.example.mylib.app
)。 这似乎很相关,因为这两个应用程序是不同的包。出于这个原因我在两个项目清单中设置了sharedUserId
属性(根据下面的packages.xml
代码段,它似乎设置正确)
所有必需的权限似乎都设置正确(即:READ_SYNC_SETTINGS
,WRITE_SYNC_SETTINGS
,AUTHENTICATE_ACCOUNTS
,USE_CREDENTIALS
,{{1} }和GET_ACCOUNTS
)。
我还为清单属性设置了显式值(而不是通过MANAGE_ACCOUNTS
扩展) - 见下文。
还尝试了干净的构建,干净的安装,重新启动等。
技术细节/转储如下。
@string/...
为22(两个项目)根据this question中提到的建议,我已检查 Android系统Logcat 似乎也没问题(直到遇到异常):
之前(干净安装):
targetSdkVersion
单步执行08-10 10:43:39.375 9015-9031/system_process D/PackageManager﹕ New package installed in /data/app/example.mylib.app-1.apk
08-10 10:43:39.387 9015-9027/system_process D/PackageManager﹕ generateServicesMap(android.accounts.AccountAuthenticator): 3 services unchanged
08-10 10:43:39.387 9015-9027/system_process D/PackageManager﹕ generateServicesMap(android.content.SyncAdapter): 6 services:
New service added: ServiceInfo: SyncAdapterType {name=com.example.mylib.provider, type=com.example.mylib.provider.ACCOUNT, userVisible=false, supportsUploading=false, isAlwaysSyncable=true, allowParallelSyncs=false, settingsActivity=null}, ComponentInfo{com.example.mylib.app/com.example.mylib.service.SyncService}, uid 10048
08-10 10:43:39.739 9015-9015/system_process I/ActivityManager﹕ START {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.example.mylib.app/.MyActivity u=0} from pid 19237
08-10 10:43:39.791 9015-9025/system_process I/ActivityManager﹕ Start proc com.example.mylib.app for activity com.example.mylib.app/.MyActivity: pid=19247 uid=10048 gids={3003, 1028}
:
addAccountExplicitly()
来自08-10 10:45:56.479 9015-9270/system_process V/AccountManagerService﹕ addAccount: Account {name=100, type=com.example.mylib.provider.ACCOUNT}, caller's uid 10048, pid 19247
08-10 10:45:56.479 9015-9270/system_process V/AccountManagerService﹕ caller uid 10048 has android.permission.AUTHENTICATE_ACCOUNTS
08-10 10:45:56.479 9015-9270/system_process W/AccountManagerService﹕ caller uid 10048 is different than the authenticator's uid
的有趣片段似乎没问题:
/data/system/packages.xml
图书馆计划...
<package name="com.example.mylib.app"
codePath="/data/app/com.example.mylib.app-1.apk"
nativeLibraryPath="/data/data/com.example.mylib.app/lib"
flags="0" ft="14f170308d8" it="14f16d8b51b" ut="14f17030a42" version="1"
sharedUserId="10048">
<sigs count="1">
<cert index="4" />
</sigs>
<perms />
</package>
...
<shared-user name="com.example.mylib" userId="10048">
<sigs count="1">
<cert index="4" />
</sigs>
<perms>
<item name="android.permission.READ_SYNC_SETTINGS" />
<item name="android.permission.MANAGE_ACCOUNTS" />
<item name="android.permission.USE_CREDENTIALS" />
<item name="android.permission.WRITE_SYNC_SETTINGS" />
<item name="android.permission.GET_ACCOUNTS" />
<item name="android.permission.INTERNET" />
<item name="android.permission.AUTHENTICATE_ACCOUNTS" />
</perms>
</shared-user>
:
mylib_authenticator.xml
图书馆计划<?xml version="1.0" encoding="utf-8"?>
<account-authenticator xmlns:android="http://schemas.android.com/apk/res/android"
android:sharedUserId="com.example.mylib"
android:accountType="com.example.mylib.provider.ACCOUNT"
android:exported="true"
android:label="@string/service_name"/>
:
mylib_syncadapter.xml
来自图书馆项目<?xml version="1.0" encoding="utf-8"?>
<sync-adapter xmlns:android="http://schemas.android.com/apk/res/android"
android:sharedUserId="com.example.mylib"
android:contentAuthority="com.example.mylib.provider"
android:accountType="com.example.mylib.provider.ACCOUNT"
android:userVisible="false"
android:exported="true"
android:supportsUploading="false"
android:allowParallelSyncs="false"
android:isAlwaysSyncable="true"
/>
的有趣位:
AndroidManifest.xml
来自应用项目<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mylib"
android:sharedUserId="com.example.mylib">
<application>
<provider
android:name="com.example.mylib.provider.MyContentProvider"
android:authorities="com.example.mylib.provider"
android:exported="true"
android:syncable="true"/>
<service
android:name="com.example.mylib.service.SyncService"
android:exported="true"
android:process=":sync">
<intent-filter>
<action android:name="android.content.SyncAdapter"/>
</intent-filter>
<meta-data android:name="android.content.SyncAdapter"
android:resource="@xml/mylib_syncadapter" />
</service>
<service android:name="com.example.mylib.service.AccountService"
android:exported="true">
<intent-filter>
<action android:name="android.content.AccountAuthenticator"/>
</intent-filter>
<meta-data android:name="android.content.AccountAuthenticator"
android:resource="@xml/mylib_authenticator" />
</service>
</application>
的有趣位:
AndroidManifest.xml