Get fragment instance from fragment maager

getFragment.scala

	private def getFragment = {
		val fragmentsArray = fragmentManager.getClass.getDeclaredField("mAdded")
		fragmentsArray.setAccessible(true)
		val fragments = fragmentsArray.get(fragmentManager).asInstanceOf[ArrayList[FeedDetailsFragment]]

		if (fragments.size == 0) null
		else if (fragments.size == 1) fragments.get(0)
		else fragments.get(1)
	}