权限仅授予系统应用程序，在清单中 [英] Permission is only granted to system app, in Manifest

问题描述

我想将此权限添加到我的 Android 清单中:

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但是在我将此权限粘贴到清单中后，它会测试红色下划线并说:

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权限仅授予系统应用

我能做什么?

解决方案

MODIFY_PHONE_STATE 权限仅授予系统应用.

供您参考，Android 应用有 2 种类型:系统和用户

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用户应用只是您通过 Google Play 商店、亚马逊应用商店或旁加载安装的所有常规应用.这些会进入您的 Android 手机的/data 分区，这是可供用户数据和应用使用的内部存储器的一部分.

系统应用基本上是您的 ROM 中预装的应用.在标准的 Android 用户环境中，用户没有/system 分区的写权限，因此无法直接安装或卸载系统应用.

为了在您的 Android 设备上安装应用作为系统应用，您的设备必须获得 root 权限或安装了自定义恢复(或两者).

话虽如此，该错误实际上是错误的，因为您有一个有效的代码并且编译应该可以工作.如果能给出警告就更好了.在 Eclipse 中，您可以轻松修复它.只需前往:

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窗口 ->首选项 ->安卓->Lint 错误检查.

从列表中查找 ProtectedPermission 并将严重性设置为错误以外的其他内容(例如信息).这样你的项目仍然可以编译.

I want to add this permission to my Android manifest:

<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />

But after I paste this permission in my manifest, it tests red underline and says:

permission is only granted to system apps

What can I do?

解决方案

MODIFY_PHONE_STATE permission is granted to system apps only.

For your information, there are 2 types of Android apps: system & user

User apps are just all your normal app installations through the Google Play Store, Amazon Appstore or sideloading. These go into the /data partition of your Android phone, which is the part of the internal memory made available for user data and apps.

System apps are basically the apps that come pre-installed with your ROM. In a standard Android user environment, the user doesn’t have write access to the /system partition and thus, installing or uninstalling system apps directly isn’t possible.

In order to install an app as a system app on your Android device, your device must either be rooted or have a custom recovery installed (or both).

That being said, that error is actually wrong because you have a valid code and compilation should work. It would be better if it gave a warning instead. In Eclipse you can easily fix it. Just go to:

Window -> Preferences -> Android -> Lint Error Checking.

Find ProtectedPermission from the list and set the severity to something other than error(info for example). This way your project will still compile.

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