oncreate startforeground

`onCreate()` is a method in Android that is called when an Activity or Service is first created.

`startForeground()` is a method in Android that allows a Service to be run in the foreground, which means it is given a higher priority than other background tasks. This method is typically used for Services that need to perform long-running operations and should not be interrupted by the system.

When `startForeground()` is called, the Service displays a notification to the user, indicating that it is running in the foreground. This notification cannot be dismissed by the user, and it is required by Android to ensure that the Service is not killed by the system.