In Android Oreo why bound services still allowed whereas (Started Services & IntentServices) are not allowed.
Suppose I have a bound service which I am binding in my oncreate() method of my activity and unbinding it in my ondestroy() method of my activity. Now when a user comes to this activity and presses the home button because of which my app goes in background now for the indefinite amount of time this bound service will use resources which I think developers wanted to remove from Oreo, So don't you think what was the reason behind keeping the bound services if they can also waste memory resources.
All of those services are allowed. However, a started non-foreground service can only run for ~1 minute.
Android will terminate your background process after a while, no different than before. A purely bound service does not raise the process importance; only a started service does.
However, a bound service's process' importance is governed both by the service's own process and the process of any bound client. That's why bound services are not directly affected by the Android 8.0 changes — the life of the service is governed more by the client than it is by the service itself. So, in cases where the service is bound to by a core OS process (e.g.,
NotificationListenerService), the system effectively controls how long that service needs to be around. In your case, since the client and the service are in the same app and the same process, your process can be terminated in the background normally.