适用于系统应用程序的Android java.lang.SecurityException [英] Android java.lang.SecurityException for system app

问题描述

我将一个应用程序安装为系统应用程序.

I installed an app as a system app.

这是应用程序的manifest文件:

<manifest android:versionCode="1" android:versionName="1.0" package="com.myapp">
  <uses-sdk android:minSdkVersion="3"/>
  <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS"/>
  <uses-permission android:name="android.permission.WRITE_SETTINGS"/>
  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
  <application android:label="@id/0x7F030001" android:icon="@id/0x7F020000" android:debuggable="true">
    <receiver android:name=".MyReceiver">
      <intent-filter>
        <action android:name="com.myapp.MyReceiver"/>
      </intent-filter>
    </receiver>
  </application>
</manifest>

现在在我的应用中，出现以下消息异常:

now in my app I get an exception with this message:

java.lang.SecurityException: Permission denial: writing to secure settings requires android.permission.WRITE_SECURE_SETTINGS

但是您可以看到我的应用程序确实请求了权限，并安装在/system/app文件夹中

but as you can see my app does request the permission and is installed in /system/app folder

有人可以帮助我了解问题所在以及为什么得到exception

Can someone help me understand what's wrong and why I get the exception

谢谢

我认为问题与android 4.4版本(API 19)中已更改的某些东西有关，因为在较旧的android版本中它确实可以工作！

I think the problem is connected to something that has changed in android 4.4 version (API 19) because in older versions of android it does work!

推荐答案

您需要将应用程序从/system/app移至/system/priv-app

You need to move your application from /system/app to /system/priv-app

您的应用应该是有权访问android.permission.WRITE_SECURE_SETTINGS的应用

Your app should be privileged app to access android.permission.WRITE_SECURE_SETTINGS

这篇关于适用于系统应用程序的Android java.lang.SecurityException的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！