Share sheet (UIActivityViewController) in iOS Swift - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a share sheet with a text message.

iOS Swift

let textToShare = "Hello from my app!"
let activityVC = UIActivityViewController(activityItems: [[1]], applicationActivities: nil)

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

Anil

Bself

CtextToShare

Dview

Attempts:

3 left

💡 Hint

Common Mistakes

Passing self or view instead of the text variable.

Not putting the item inside an array.

The share sheet needs the content to share inside an array. Here, we share the text stored in textToShare.

2fill in blank

medium

Complete the code to present the share sheet from the current view controller.

iOS Swift

present(activityVC, animated: [1], completion: nil)

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Atrue

B0

Cnil

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Passing false disables animation and is less user-friendly.

Passing nil or 0 causes errors.

The share sheet should be presented with animation, so pass true for the animated parameter.

3fill in blank

hard

Fix the error in the code to avoid a crash on iPad by setting the popoverPresentationController's sourceView.

iOS Swift

if let popover = activityVC.popoverPresentationController {
    popover.sourceView = [1]
}

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

AUIApplication.shared

Bnil

CactivityVC

Dself.view

Attempts:

3 left

💡 Hint

Common Mistakes

Setting sourceView to nil causes a crash on iPad.

Using activityVC or UIApplication.shared is incorrect.

On iPad, the share sheet must have a sourceView for the popover. Setting it to self.view fixes the crash.

4fill in blank

hard

Fill both blanks to share an image named "photo.png" from the app bundle.

iOS Swift

if let image = UIImage(named: [1]) {
    let activityVC = UIActivityViewController(activityItems: [[2]], applicationActivities: nil)
}

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

A"photo.png"

B"photo"

Cimage

Dself

Attempts:

3 left

💡 Hint

Common Mistakes

Including the file extension in the image name.

Passing the string instead of the image variable to activityItems.

UIImage(named:) expects the image name without extension. The activityItems array needs the image variable.

5fill in blank

hard

Fill all three blanks to share a URL and exclude the AirDrop activity from the share sheet.

iOS Swift

if let url = URL(string: [1]) {
    let activityVC = UIActivityViewController(activityItems: [url], applicationActivities: nil)
    activityVC.excludedActivityTypes = [[2]]
    present(activityVC, animated: [3], completion: nil)
}

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

A"https://example.com"

B.airDrop

Ctrue

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting the URL string.

Using wrong activity type to exclude.

Passing false to animated parameter.

The URL string must be quoted. To exclude AirDrop, use .airDrop. Present the share sheet with animation true.