How to Check If a Service Is Running on Android

How to check if a service is running on Android?

I had the same problem not long ago. Since my service was local, I ended up simply using a static field in the service class to toggle state, as described by hackbod here

EDIT (for the record):

Here is the solution proposed by hackbod:

If your client and server code is part of the same .apk and you are
binding to the service with a concrete Intent (one that specifies the
exact service class), then you can simply have your service set a
global variable when it is running that your client can check.

We deliberately don't have an API to check whether a service is
running because, nearly without fail, when you want to do something
like that you end up with race conditions in your code.

The correct way to determine if service is running

Create a static boolean in the Service itself.
In onCreate make it true;
In onDestroy() make it false;

public class ActivityService extends Service {

public static  boolean IS_ACTIVITY_RUNNING = false;

@Nullable
@Override
public IBinder onBind(Intent intent) {
    return null;
}

@Override
public void onCreate() {
    super.onCreate();
    IS_ACTIVITY_RUNNING = true;
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
            if(!IS_ACTIVITY_RUNNING)
                stopSelf();
    return START_STICKY;
}

@Override
public void onDestroy() {
    super.onDestroy();
    IS_ACTIVITY_RUNNING = false;
}}

Now, You can check whether your activiy is running trough boolean ActivityService.IS_ACTIVITY_RUNNING

Check if a service is already running

To check if a service is running:

class MyService extends Service {
   private static boolean isRunning;
   public int onStartCommand (Intent intent, 
                int flags, 
                int startId) {
        isRunning = true;
        ...
   }
   public void onDestroy() {
       isRunning = false;
   }
   public static boolean isRunning() { 
       return isRunning;
   }
}

Then to check if its running, just check MyService.isRunning().

To check if a service is scheduled:

if(JobScheduler.getPendingJob(jobID) == null) {
   //job notscheduled
}

Android check if service is running from another application

basically ended with three possibilities hope this helps someone else in the future.

Method 1: (what i went with event though method 2 is better)

    public static boolean isServiceRunning(Context queryingContext) {
    try {
        ActivityManager manager = (ActivityManager) queryingContext.getSystemService(Context.ACTIVITY_SERVICE);
        for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
            if ("com.example.myservice".equals(service.service.getClassName()))
                return true;
        }
    } catch (Exception ex) {
        Toast.makeText(queryingContext, "Error checking service status", Toast.LENGTH_SHORT).show();
    }
    return false;
}

Method 2:

like pskink suggested above use bindService with flag 0. only issue with this is the method will always return true whether it got connected or not, you'll have to find another way to know what happened (you won't receive the service handle if it failed)

Method 3:

suggested by yosriz use SharedPreference to stop a status flag that the other application will check and know the status of the service.

Is there a way to check if my custom service is running or not through adb?

You can check whether your custom service is running or not by below adb command.

adb shell dumpsys activity services <your-package-name>

It will give all your running service info.

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