Android 解析软件包时出现问题 -- Error staging apk from content URI

时间：2025-01-27 18:11:07

Android Version : 8.1

使用场景 : 在Rk3288w Android 8.1 的测试设备上安装 "文件管理器" 应用程序 , 若打开***.apk文件,会出现  解析包错误  提示,即安装失败,影响使用.

 如下为 中的Log信息.

06-29 08:37:56.559 W/ActivityManager(  369): For security reasons, the system cannot issue a Uri permission grant to content:///root_path/D007-6A31/Android_APK/ [user 0]; use startActivityAsCaller() instead
06-29 08:37:56.561 E/ActivityManager(  369): getPackageFerformanceMode--ComponentInfo{/}----

最终 错误信息 的Log.

06-29 08:37:56.768 W/ActivityManager(  369): Permission Denial: opening provider  from ProcessRecord{91d037 1469:/u0a14} (pid=1469, uid=10014) that is not exported from UID 1000
06-29 08:37:56.759 E/hwc_rk  (  236): hwc_get_handle_layername:cann't get value from gralloc
06-29 08:37:56.768 W/InstallStaging( 1469): Error staging apk from content URI
06-29 08:37:56.768 W/InstallStaging( 1469): : Permission Denial: opening provider  from ProcessRecord{91d037 1469:/u0a14} (pid=1469, uid=10014) that is not exported from UID 1000
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:2013)
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:1959)
06-29 08:37:56.768 W/InstallStaging( 1469):     at $Stub$(:4758)
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:5836)
06-29 08:37:56.768 W/InstallStaging( 1469):     at $(:2526)
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:1780)
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:1394)
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:1247)
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:967)
06-29 08:37:56.768 W/InstallStaging( 1469):     at $(:180)
06-29 08:37:56.768 W/InstallStaging( 1469):     at $(:174)
06-29 08:37:56.768 W/InstallStaging( 1469):     at $(:333)
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:266)
06-29 08:37:56.768 W/InstallStaging( 1469):     at $SerialExecutor$(:245)
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:1162)
06-29 08:37:56.768 W/InstallStaging( 1469):     at $(:636)
06-29 08:37:56.768 W/InstallStaging( 1469):     at (:764)

根据Log中显示 ,主要是FileProvider权限不足以使用系统UID所导致.

结合ActivityManagerService中的Log,定位至:frameworks\base\services\core\java\com\android\server\am\

    int checkGrantUriPermissionLocked(int callingUid, String targetPkg, GrantUri grantUri,
            final int modeFlags, int lastTargetUid) {

    ****************************************************************
        // Bail early if system is trying to hand out permissions directly; it
        // must always grant permissions on behalf of someone explicit.
        final int callingAppId = (callingUid);
        if ((callingAppId == SYSTEM_UID) || (callingAppId == ROOT_UID)) {
            if ("".equals(())
                || "".equals(())) {
                // Exempted authority for cropping user photos in Settings app
            } else {
                (TAG, "For security reasons, the system cannot issue a Uri permission"
                        + " grant to " + grantUri + "; use startActivityAsCaller() instead");
                return -1;
            }
        }
    ****************************************************************
    }

有此可以看出来,AMS打出错误信息是因为  具有  android:sharedUserId=""  属性;

若按照Android 8.0 以上修改,默认拥有权限的只有      其他均不授予权限,直接跳出方法.

故而解决办法如上,在 checkGrantUriPermissionLocked() 此方法中,添加包名,即可不跳出此方法,授予安装权限.

最后单编 framework 层 Push进机器中,问题解决.

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