Android bind with existing service across multiple apps -

i have service implemented in module a. apps b , c uses library bind service using bindservice(service, connection, bind_auto_create) creates new instance of service. i'm using messenger return binder connection objects. if use aidl, how sharing same service instance achieved? i've read , tried stackoverflow answers related question. still i'm not able achieve explained above.

manifest of service defined inside module full process name process attribute , exported,enabled set true.

 <service         android:name="io.packagename.locationservice"         android:enabled="true"         android:exported="true"         android:permission="android.permission.access_fine_location"         android:process="io.packagename.locationservice" /> 

locationservice-class:

class locationservice extends service {         incominghandler handler = new incominghandler()         messenger messenger = new messenger(handler)          public ibinder onbind(intent intent) {            log.d(tag, "onbind")            return messenger.binder         }       } 

any appreciated.

quoting docs:

as discussed in services document, can create service both started , bound. is, service can started calling startservice(), allows service run indefinitely, , allow client bind service calling bindservice().

an example:

for example, music player might find useful allow service run indefinitely , provide binding. way, activity can start service play music , music continues play if user leaves application. then, when user returns application, activity can bind service regain control of playback.

i believe applies case, can start service , bind clients needed.