android P非systemuid应用如何通过反射调用hide接口——系统修改方案

高通8909平台,项目需要集成GMS。开机后,SetupWizard一直报错,查看log发现是调用了系统的hide方法,显示Accessing hidden method进而报错java.lang.NoSuchMethodException。

百度找到了一篇入门贴:
https://blog.csdn.net/firedancer0089/article/details/82969969

然后找了一篇科普贴:
https://developer.android.com/distribute/best-practices/develop/restrictions-non-sdk-interfaces

官方科普贴有临时调试方案:
Android 9 (API level 28)
To enable access, use the following adb commands:

adb shell settings put global hidden_api_policy_pre_p_apps  1
adb shell settings put global hidden_api_policy_p_apps 1

To reset the API enforcement policy to the default settings, use the following commands:

adb shell settings delete global hidden_api_policy_pre_p_apps
adb shell settings delete global hidden_api_policy_p_apps

You can set the integer in the API enforcement policy to one of the following values:

0: Disable all detection of non-SDK interfaces. Using this setting disables all log messages for non-SDK interface usage and prevents you from testing your app using the StrictMode API. This setting is not recommended.
1: Enable access to all non-SDK interfaces, but print log messages with warnings for any non-SDK interface usage. Using this setting also allows you to test your app using the StrictMode API.
2: Disallow usage of non-SDK interfaces that belong to either the blacklist or the greylist and are restricted for your target API level.

设置0之后,重启设备可以解决我的问题,之后就找靠谱的解决方案。

可以从官方文档看到,除了临时调试方案,还有黑名单、灰名单和白名单,但是没有写如何修改。

重点来了,仅针对QC平台,我修改的文件:

frameworks/base/data/etc/hiddenapi-package-whitelist.xml
<config>
  <hidden-api-whitelisted-app package="android.ext.services" />
  <hidden-api-whitelisted-app package="com.android.apps.tag" />
  <hidden-api-whitelisted-app package="com.android.basicsmsreceiver" />
  <hidden-api-whitelisted-app package="com.android.bookmarkprovider" />
  <hidden-api-whitelisted-app package="com.android.calllogbackup" />
  <hidden-api-whitelisted-app package="com.android.camera" />
  <hidden-api-whitelisted-app package="com.android.car.dialer" />
  <hidden-api-whitelisted-app package="com.android.car.messenger" />
  <hidden-api-whitelisted-app package="com.android.car.overview" />
  <hidden-api-whitelisted-app package="com.android.car.stream" />
  <hidden-api-whitelisted-app package="com.android.companiondevicemanager" />
  <hidden-api-whitelisted-app package="com.android.dreams.basic" />
  <hidden-api-whitelisted-app package="com.android.gallery" />
  <hidden-api-whitelisted-app package="com.android.launcher3" />
  <hidden-api-whitelisted-app package="com.android.mtp" />
  <hidden-api-whitelisted-app package="com.android.musicfx" />
  <hidden-api-whitelisted-app package="com.android.packageinstaller" />
  <hidden-api-whitelisted-app package="com.android.printservice.recommendation" />
  <hidden-api-whitelisted-app package="com.android.printspooler" />
  <hidden-api-whitelisted-app package="com.android.providers.blockednumber" />
  <hidden-api-whitelisted-app package="com.android.providers.calendar" />
  <hidden-api-whitelisted-app package="com.android.providers.contacts" />
  <hidden-api-whitelisted-app package="com.android.providers.downloads" />
  <hidden-api-whitelisted-app package="com.android.providers.downloads.ui" />
  <hidden-api-whitelisted-app package="com.android.providers.media" />
  <hidden-api-whitelisted-app package="com.android.providers.tv" />
  <hidden-api-whitelisted-app package="com.android.providers.userdictionary" />
  <hidden-api-whitelisted-app package="com.android.smspush" />
  <hidden-api-whitelisted-app package="com.android.spare_parts" />
  <hidden-api-whitelisted-app package="com.android.statementservice" />
  <hidden-api-whitelisted-app package="com.android.storagemanager" />
  <hidden-api-whitelisted-app package="com.android.systemui.plugins" />
  <hidden-api-whitelisted-app package="com.android.terminal" />
  <hidden-api-whitelisted-app package="jp.co.omronsoft.openwnn" />
</config>

只需要加上应用包名即可。

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