Two Android applications with the same user ID

Question

From http://developer.android.com/guide/topics/fundamentals.html:

It\'s possible to arrange for two applications to share the same Linux user ID, i

Answer 1

You can do this by setting the sharedUserId and sharedUserLabel in the AndroidManifest.xml file to the same value. As an example, if I have the following 2 manifest files (I only included the beginning):

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.example.package1" 
      android:sharedUserId="userId"
      android:sharedUserLabel="@string/label_shared_user" 
      android:versionCode="1" 
      android:versionName="1.0.0">

and

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.example.package2" 
      android:sharedUserId="userId"
      android:sharedUserLabel="@string/label_shared_user" 
      android:versionCode="1" 
      android:versionName="1.0.0">

then they will both share the same user.