Quiz for:
CS50 iOS Track 4: iOS Photo Filter App - Lecture Notes

Question 1

What must be done after selecting a photo in the image picker controller?

Question 2

What action should be created to handle the photo selection button in the Fiftygram app?

Question 3

How can additional filters be implemented in the Fiftygram app?

Question 4

Which delegate methods must be implemented when using `UIImagePickerController`?

Question 5

How does the Fiftygram app ensure that optionals are safely unwrapped?

Question 6

What Core Image class is used to apply a sepia filter?

Question 7

What is the first step in setting up the Fiftygram project?

Question 8

How is the selected photo displayed in the image view after selection?

Question 9

Which framework is used for applying filters in the Fiftygram app?

Question 10

Where do you set the navigation bar title in an iOS app?

Question 11

Which lifecycle method is often modified to set up initial UI elements in view controllers?

Question 12

What function is called to present the image picker controller in the Fiftygram app?

Question 13

What tool is used to create the Fiftygram photo filter app?

Question 14

Which Swift UI component is used to select a photo from the library in the Fiftygram app?

Question 15

Which layout method is recommended for scaling images proportionally in the `UIImageView`?