Navigation drawer in Android Kotlin - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to open the navigation drawer when the menu icon is clicked.

Android Kotlin

drawerLayout.[1](GravityCompat.START)

Drag options to blanks, or click blank then click option'

AopenDrawer

BcloseDrawer

ClockDrawer

DtoggleDrawer

Attempts:

3 left

💡 Hint

Common Mistakes

Using closeDrawer instead of openDrawer.

Using toggleDrawer instead of openDrawer.

The openDrawer method opens the navigation drawer from the specified gravity side.

2fill in blank

medium

Complete the code to set the navigation item selected listener for the drawer.

Android Kotlin

navigationView.[1] = this

Drag options to blanks, or click blank then click option'

AsetOnClickListener

BsetNavigationItemSelectedListener

CsetOnItemClickListener

DsetOnNavigationListener

Attempts:

3 left

💡 Hint

Common Mistakes

Using setOnClickListener which is for general clicks.

Using setOnItemClickListener which is for list views.

The setNavigationItemSelectedListener method sets the listener to handle menu item clicks in the navigation drawer.

3fill in blank

hard

Fix the error in the code to properly close the drawer when an item is selected.

Android Kotlin

drawerLayout.[1](GravityCompat.START)

Drag options to blanks, or click blank then click option'

AcloseDrawer

BlockDrawer

CopenDrawer

DisDrawerOpen

Attempts:

3 left

💡 Hint

Common Mistakes

Using openDrawer instead of closeDrawer.

Using isDrawerOpen which only checks state.

To close the drawer, use the closeDrawer method with the gravity side.

4fill in blank

hard

Fill both blanks to check if the drawer is open and then close it.

Android Kotlin

if (drawerLayout.[1](GravityCompat.START)) {
    drawerLayout.[2](GravityCompat.START)
}

Drag options to blanks, or click blank then click option'

AisDrawerOpen

BcloseDrawer

CopenDrawer

DlockDrawer

Attempts:

3 left

💡 Hint

Common Mistakes

Using openDrawer instead of closeDrawer to close the drawer.

Not checking if the drawer is open before closing.

First, check if the drawer is open using isDrawerOpen. If true, close it with closeDrawer.

5fill in blank

hard

Fill all three blanks to create a map of menu item IDs to their titles from the navigation menu.

Android Kotlin

val menuMap = navigationView.menu.[1] { item ->
    item.[2] to item.[3]
}

Drag options to blanks, or click blank then click option'

Aassociate

BitemId

Ctitle

DforEach

Attempts:

3 left

💡 Hint

Common Mistakes

Using forEach which returns Unit, not a map.

Using wrong properties like 'itemTitle' or 'id' instead of 'title' and 'itemId'.

The associate function creates a map. Use itemId for keys and title for values.