drawer.scala

// -- in the activity:

var navSlot = slot[ListView]
var drawerSlot = slot[DrawerLayout]

// -- in onCreate:

// ListView tweaks
def checkItem(pos: Int) = Tweak[ListView](_.setItemChecked(pos, true))
val singleNoDivider = Tweak[ListView] { lv ⇒   
  lv.setDividerHeight(0)
  lv.setChoiceMode(AbsListView.CHOICE_MODE_SINGLE)		
}

// Drawer tweaks
val closeDrawers = Tweak[DrawerLayout](_.closeDrawers())
val drawerShadow = Tweak[DrawerLayout](_.setDrawerShadow(R.drawable.drawer_shadow, Gravity.START))

// navigation
val nav = w[ListView] <~
  layoutParams[DrawerLayout](240 dp, MATCH_PARENT, Gravity.START) <~
  Bg.color(Color.parseColor("#FF363636")) <~
  singleNoDivider <~
  adapter.tweak <~
  FuncOn.itemClick[ListView] { (parent: AdapterView[_], view: View, pos: Int, id: Long) ⇒
    Ui(Log.i("Uf", adapter.getItem(pos).text)) ~
    (navSlot <~ checkItem(pos)) ~
    (drawerSlot <~ closeDrawers)
  } <~
  wire(navSlot)

// f[...].framed returns a FrameLayout
// there is probably no point in wrapping
// it into an additional LinearLayout
val view = f[PrefsFragment].framed(Id.provinceOverview, Tag.provinceOverview) <~
  layoutParams[DrawerLayout](MATCH_PARENT, WRAP_CONTENT)

// the drawer
val drawer = l[DrawerLayout](view, nav) <~
  drawerShadow <~
  wire(drawerSlot)
  
setContentView(getUi(drawer))