<androidx.drawerlayout.widget.DrawerLayout xmlns : android ="http://schemas.android.com/apk/res/android"
xmlns:app = "http://schemas.android.com/apk/res-auto"
android:id = "@+id/root"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    ... your content ...

    <com.mikepenz.materialdrawer.widget.MaterialDrawerSliderView
        android:id="@+id/slider"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true" />
</androidx.drawerlayout.widget.DrawerLayout>

//if you want to update the items at a later time it is recommended to keep it in a variable
val item1 = PrimaryDrawerItem().apply { nameRes = R.string.drawer_item_home; identifier = 1 }
val item2 = SecondaryDrawerItem().apply { nameRes = R.string.drawer_item_settings; identifier = 2 }

// get the reference to the slider and add the items
slider.itemAdapter.add(
	    item1,
	    DividerDrawerItem(),
	    item2,
	    SecondaryDrawerItem().apply { nameRes = R.string.drawer_item_settings }
)

// specify a click listener
slider.onDrawerItemClickListener = { v, drawerItem, position ->
    // do something with the clicked item :D
    false
}

//set the selection to the item with the identifier 1
slider.setSelection(1)
//set the selection to the item with the identifier 2
slider.setSelection(item2)
//set the selection and also fire the `onItemClick`-listener
slider.setSelection(1, true)

SecondaryDrawerItem().apply { nameRes = R.string.drawer_item_dialog; isSelectable = false }

//modify an item of the drawer
item1.apply {
  nameText = "A new name for this drawerItem"; badge = StringHolder("19")
  badgeStyle = BadgeStyle().apply { textColor = ColorHolder.fromColor(Color.WHITE); color = ColorHolder.fromColorRes(R.color.md_red_700) }
}
//notify the drawer about the updated element. it will take care about everything else
slider.updateItem(item1)

//to update only the name, badge, icon you can also use one of the quick methods
slider.updateName(1, "A new name")

//the result object also allows you to add new items, remove items, add footer, sticky footer, ..
slider.addItem(DividerDrawerItem())
slider.addStickyFooterItem(PrimaryDrawerItem().apply { nameTest = "StickyFooter" })

//remove items with an identifier
slider.removeItem(2)

//open / close the drawer
slider.drawerLayout?.openDrawer(slider)
slider.drawerLayout?.closeDrawer(slider)

//get the reference to the `DrawerLayout` itself
slider.drawerLayout

// Create the AccountHeader
headerView = AccountHeaderView(this).apply {
    attachToSliderView(slider) // attach to the slider
    addProfiles(
        ProfileDrawerItem().apply { nameText = "Mike Penz"; descriptionText = "[email protected]"; iconRes = R.drawable.profile; identifier = 102 }
    )
    onAccountHeaderListener = { view, profile, current ->
        // react to profile changes
        false
    }
    withSavedInstance(savedInstanceState)
}

//now you can simply use any icon of the Google Material Icons font
PrimaryDrawerItem().apply { iconicsIcon = GoogleMaterial.Icon.gmd_wb_sunny }
//Or an icon from FontAwesome
SecondaryDrawerItem().apply { iconicsIcon = FontAwesomeBrand.Icon.fab_github }

//initialize and create the image loader logic
DrawerImageLoader.init(object : AbstractDrawerImageLoader() {
    override fun set(imageView: ImageView, uri: Uri, placeholder: Drawable) {
        Picasso.get().load(uri).placeholder(placeholder).into(imageView)
    }

    override fun cancel(imageView: ImageView) {
        Picasso.get().cancelRequest(imageView)
    }
    
    /*
    override fun set(imageView: ImageView, uri: Uri, placeholder: Drawable, tag: String?) {
        super.set(imageView, uri, placeholder, tag)
    }

    override fun placeholder(ctx: Context): Drawable {
        return super.placeholder(ctx)
    }

    override fun placeholder(ctx: Context, tag: String?): Drawable {
        return super.placeholder(ctx, tag)
    }
    */
})