First of all, I have a lib library, which defines a Service:

<application
    android:allowBackup="true"
    android:label="@string/app_name"
    android:supportsRtl="true">
    <service
        android:name=".SharedService"
        android:process="com.lib.aidl.SharedService"
        android:enabled="true"
        android:exported="true">
    </service>
</application>

Now, add two apps that have introduced this library, and then called them in their respective codes:

startService(new Intent(context, SharedService.class))

What I am thinking now is that there should be only one instance of SharedService in the system, in the process com.lib.aidl.SharedService.

But the actual situation is that there are two instances of SharedService, they are both in the process named com.lib.aidl.SharedService, but the process ids are different . why is that?

Now I want only one instance of SharedService to appear in the system. When startService is called for the second time, the onStartCommand method will be called back. Can this be done? ?