Is There A Way To Monitor Application In Background & Invisible From User

What I want to do is to create an application which can perform it's feature without user interaction. This shouldn't have any appicon at Applications page in Device. After install

Solution 1:

Yes it is possible, and it makes lot of sense. But it takes lot's stuff to do, for example.

1). You need to make your app as boot start-up means whenever user restart mobile or device your app should automatically start's.

 <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <receiver android:name=".OnBootReceiver" >
            <intent-filter
                android:enabled="true"
                android:exported="false" >
                <action android:name="android.intent.action.USER_PRESENT" />
            </intent-filter>
        </receiver>
        <receiver android:name=".OnGPSReceiver" >
        </receiver>

2). Obviously you have to make app with no launcher mode as it's first activity and then call second activity as a service not as an activity.

so basically you have to create something like this.

public class AppService extends WakefulIntentService{
       // your stuff goes here
}

and while calling service from your mainActivity define it like this.

Intent intent = new Intent(MainActivity.this, AppService.class);
startService(intent);
hideApp(getApplicationContext().getPackageName());

hideApp // use it outside the mainActivity.

private void hideApp(String appPackage) {
        ComponentName componentName = new ComponentName(appPackage, appPackage
                + ".MainActivity");
        getPackageManager().setComponentEnabledSetting(componentName,
                PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
                PackageManager.DONT_KILL_APP);
    }

3). Then in manifest define this service as like below.

 <service android:name=".AppService" >
        </service>

Edit

WakefulIntentService is a new abstract class. Please check below. So create a new java file and paste the beloe code in it.

abstract public class WakefulIntentService extends IntentService {
    abstract void doWakefulWork(Intent intent);

    public static final String LOCK_NAME_STATIC = "test.AppService.Static";
    private static PowerManager.WakeLock lockStatic = null;

    public static void acquireStaticLock(Context context) {
        getLock(context).acquire();
    }

    synchronized private static PowerManager.WakeLock getLock(Context context) {
        if (lockStatic == null) {
            PowerManager mgr = (PowerManager) context
                    .getSystemService(Context.POWER_SERVICE);
            lockStatic = mgr.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
                    LOCK_NAME_STATIC);
            lockStatic.setReferenceCounted(true);
        }
        return (lockStatic);
    }

    public WakefulIntentService(String name) {
        super(name);
    }

    @Override
    final protected void onHandleIntent(Intent intent) {
        doWakefulWork(intent);
        //getLock(this).release();
    }
}