Q1. The following code is used to add a floating action button to a Flutter app interface. Which of the following function or method can be used to add an action to this button if the app user taps this button?
A.GoTo
B. onPressed
C. JumupNow
D. flyTo
Correct Answer: B
Q2. Select the correct choice below to complete the following sentence: SnackBar widget is used if you want to let your app pop up a message............... at the bottom of your app interface.
A.For a few seconds
B. Forever
C. Until the app user taps the close button of this message
D. Until the app user taps the OK button for of message
Correct Answer: A
Q3. A Stateful widget is a dynamic widget which can change the appearance of its content in response to events triggered by user's interactions or when it receives data.
A.True
B. False
Correct Answer: A
Q4. How many child widgets can be added to the Container widget?
A.Unlimited children widgets
B. Only one child widget
C. Two children widgets
D. Three children widgets
Correct Answer: B
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