简单系统的运行的服务

public class Main extends Activity {
 private static String APP_TAG = "tag";

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  ActivityManager activityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
  List<ActivityManager.RunningServiceInfo> runningServices = activityManager.getRunningServices(50);

  for (int i = 0; i < runningServices.size(); i++) {
   ActivityManager.RunningServiceInfo runningServiceInfo = runningServices.get(i);
   Log.i(APP_TAG, "Process " + runningServiceInfo.process + " with component " + runningServiceInfo.service.getClassName());
  }
 }
}