Fix back button in GalleryActivity

import android.view.MenuItem

import com.jakewharton.rxbinding2.view.clicks

import com.moez.QKSMS.R

import common.GlideCompletionListener

import common.base.QkActivity

import common.util.GlideApp

import common.util.extensions.setVisible

import io.reactivex.subjects.PublishSubject

import io.reactivex.subjects.Subject

import kotlinx.android.synthetic.main.gallery_activity.*

import common.GlideCompletionListener

import common.base.QkActivity

class GalleryActivity : QkActivity<GalleryViewModel>(), GalleryView {

    }

    override fun onOptionsItemSelected(item: MenuItem): Boolean {

        optionsItemSelectedIntent.onNext(item.itemId)

        when (item.itemId) {

            android.R.id.home -> onBackPressed()

            else -> optionsItemSelectedIntent.onNext(item.itemId)

        }

        return true

    }