Android – how do I start services defined in different packages?

I have two applications, one running in the namespace com.gtosoft.voyager and the other com.gtosoft.dash. From com.gtosoft.dash, I want to start the services defined in com.gtosoft.voyager

I think I need an intention, but will I pass Arg (s) to the intention before starting with startservice()?

If they're in the same package I can use

Intent svc=new Intent (SettingsActivity.this,VoyagerService.class);
startService(svc);

The fragment in listing defines the service

<application android:icon="@drawable/voyagercarlogo" android:label="@string/app_name" android:debuggable="false">

    <provider android:name="com.gtosoft.voyager.VoyagerCProvider" 
        android:authorities="com.gtosoft.voyager"/>

    <service android:name=".VoyagerService"/>

    <activity android:name=".SettingsActivity" 
            android:label="Voyager"
            android:configChanges="keyboardHidden|orientation">

        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

resolvent:

I will set up an < intent Filter > on the service, use a custom action, and then use it in your intent to start or bind to the service. You can see an example in this pair of client and service sample projects