Like playing music in background. Service is a process but the special thing is about the service is it doesn t need user interaction and it runs on background.
Start any activity in your android project to install boot completed receiver in android device.
Android service. The activity that sends work requests to the service uses an explicit intent so no filter is needed. If the service is bound to an activity that has user focus it s less likely to be killed. Android service is a component that is used to perform operations on the background such as playing music handle network transactions interacting content providers etc.
A foreground service is a service that should have the same priority as an active activity and therefore should not be killed by the android system even if the system is low on memory. What is android service. The android system stops a service only when memory is low and it must recover system resources for the activity that has user focus.
The attribute android name specifies the class name of the intentservice. Android services started. Android service services are used to implement or to perform background operations running in our app.
This also means that only components in the same app or other applications with the same user id can access the service. Notice that the service element doesn t contain an intent filter. It is a long running process and it does not need user interaction.
It is an application component used to perform long running important background tasks such as playing music downloading a file or performing a network transaction. Shutdown the android device and restart it again in android virtual device manager then you can see toast message and debug log in android monitor log cat console. It doesn t has any ui user interface.
If the service is started and is long running the system lowers its position in the list of background tasks over time and the service becomes highly susceptible to killing if your service is. I hope you can imagine some android services examples now. Onstartcommand the system calls this method when another component such as an activity requests that the service be started by calling startservice if you implement this method it is your responsibility to stop the service when its work is done by calling stopself or stopservice methods.
If the service is declared to run in the foreground it s rarely killed. The service runs in the background indefinitely even if application is destroyed. Start android service when boot completed example.