Unity UI Selectable Navigation Code

gistfile1.txt

  public Button[] buttonArray;
	public Selectable currentSelectable;

	public void nextButton() {
		if(currentSelectable == null) {
			currentSelectable = buttonArray[0];
			currentSelectable.Select();
			return;
		}
		currentSelectable = currentSelectable.FindSelectableOnDown();
		currentSelectable.Select();

	}


	public void lastButton() {
		if(currentSelectable == null) {
			currentSelectable = buttonArray[0];
			currentSelectable.Select();
			return;
		}
		currentSelectable = currentSelectable.FindSelectableOnUp();
		currentSelectable.Select();

	}