MapKit for maps in iOS Swift - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the framework needed to use maps in Swift.

iOS Swift

import [1]

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

AMapKit

BUIKit

CFoundation

DCoreLocation

Attempts:

3 left

💡 Hint

Common Mistakes

Importing UIKit instead of MapKit.

Importing CoreLocation which is for location but not maps.

MapKit is the framework used to work with maps in iOS apps.

2fill in blank

medium

Complete the code to create a map view and add it to the main view.

iOS Swift

let mapView = MKMapView()
view.[1](mapView)

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AinsertSubview

BremoveSubview

CaddSubview

DbringSubviewToFront

Attempts:

3 left

💡 Hint

Common Mistakes

Using removeSubview which deletes a view.

Using bringSubviewToFront which only changes view order.

To show the map, you add the MKMapView as a subview to your main view.

3fill in blank

hard

Fix the error in setting the map region center coordinate.

iOS Swift

let coordinate = CLLocationCoordinate2D(latitude: 37.7749, longitude: [1])
let region = MKCoordinateRegion(center: coordinate, latitudinalMeters: 1000, longitudinalMeters: 1000)
mapView.setRegion(region, animated: true)

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

A"-122.4194"

B-122.4194

Clatitude

Dnil

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string instead of a number for longitude.

Using latitude value again instead of longitude.

Longitude must be a Double number, not a string or other value.

4fill in blank

hard

Fill both blanks to create a map annotation and add it to the map.

iOS Swift

let annotation = MKPointAnnotation()
annotation.[1] = CLLocationCoordinate2D(latitude: 40.7128, longitude: -74.0060)
annotation.[2] = "New York City"
mapView.addAnnotation(annotation)

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Acoordinate

Btitle

Csubtitle

Dregion

Attempts:

3 left

💡 Hint

Common Mistakes

Using subtitle instead of title for the main label.

Trying to set region on annotation which is not valid.

Annotations need a coordinate and a title to show on the map.

5fill in blank

hard

Fill all three blanks to create a region centered on a coordinate with a span and set it on the map.

iOS Swift

let center = CLLocationCoordinate2D(latitude: 34.0522, longitude: [1])
let span = MKCoordinateSpan(latitudeDelta: [2], longitudeDelta: [3])
let region = MKCoordinateRegion(center: center, span: span)
mapView.setRegion(region, animated: true)

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

A-118.2437

B0.05

D1.0

Attempts:

3 left

💡 Hint

Common Mistakes

Using large span values which zoom out too far.

Using positive longitude for a west coast city.

Longitude must be a number, and the span values control zoom level with small deltas.