Simulator usage in iOS Swift - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to launch the iOS Simulator from the command line.

iOS Swift

xcrun simctl [1] <device-uuid>

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

Aboot

Binstall

Clist

Dshutdown

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'shutdown' instead of 'boot' will turn off the simulator.

Using 'list' only shows devices but does not start one.

The boot command starts the simulator device.

2fill in blank

medium

Complete the code to list all available simulator devices.

iOS Swift

xcrun simctl [1] devices

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

Adelete

Bboot

Ccreate

Dlist

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'boot' will try to start a device, not list them.

Using 'create' or 'delete' changes devices, not lists them.

The list command shows all simulator devices available.

3fill in blank

hard

Fix the error in the command to install an app on the simulator.

iOS Swift

xcrun simctl [1] <device-uuid> <path-to-app>

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

Aboot

Blaunch

Cinstall

Dcreate

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'boot' tries to start the device, not install an app.

Using 'launch' requires the app to be already installed.

The install command installs an app on the specified simulator device.

4fill in blank

hard

Fill both blanks to create a new simulator device with a specific name and device type.

iOS Swift

xcrun simctl create [1] [2] com.apple.CoreSimulator.SimRuntime.iOS-17-0

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

AMyTestDevice

BiPhone-14

CiPhone-13

DTestDevice

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping device name and type will cause errors.

Using invalid device types will fail to create the device.

The first blank is the device name, the second is the device type identifier.

5fill in blank

hard

Fill all three blanks to launch an app on a booted simulator device.

iOS Swift

xcrun simctl [1] [2] [3]

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

Alaunch

Bdevice-uuid

Ccom.example.MyApp

Dinstall

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'install' instead of 'launch' will only install, not run the app.

Using wrong device UUID or bundle ID will cause failure.

The launch command runs the app identified by its bundle ID on the device UUID.