DM461 Mobile Applications Lecture 5 - Utility UI Components Quiz

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Questions and Answers

What should you use the Positive action button for in an AlertDialog?

To remind the user later
To proceed with the action (correct)
To place a neutral option
To cancel the action

In an AlertDialog, where does the Neutral button typically appear in relation to the Positive and Negative buttons?

Between the Positive and Negative buttons (correct)
Before the Positive button
Randomly placed
After the Negative button

What is the purpose of a Tooltip in a UI?

To trigger an action
To display a small descriptive message near a view (correct)
To select a time or date
To represent positive and negative options

How do Android pickers help users in selecting a time or date?

By providing controls for selecting each part of the time or date (D) Signup and view all the answers

What must be defined to create a DialogFragment for a TimePickerDialog?

TimePickerDialog.OnTimeSetListener (C) Signup and view all the answers

Which kind of action should you use the Negative button for in an AlertDialog?

Cancel the action (A) Signup and view all the answers

How can you display a TimePickerDialog using DialogFragment?

Define a fragment class that extends DialogFragment and return a TimePickerDialog from the fragment's onCreateDialog() method. (A) Signup and view all the answers

What is the purpose of a dialog in mobile applications?

To prompt the user to make a decision or enter additional information (D) Signup and view all the answers

What is the purpose of a Floating Action Button (FAB) in an app's UI?

To trigger the primary action in the app's UI. (B) Signup and view all the answers

Why is it recommended to use subclasses like AlertDialog instead of instantiating Dialog directly?

Instantiating Dialog directly may cause UI inconsistencies (C) Signup and view all the answers

How can you display a DatePickerDialog using DialogFragment?

Define a fragment class that extends DialogFragment and return a DatePickerDialog from the fragment's onCreateDialog() method. (B) Signup and view all the answers

Which subclass of Dialog should be used to allow a user to select a date or time?

DatePickerDialog (A) Signup and view all the answers

What is the purpose of a toast in an app?

To provide simple feedback about an operation in a small popup. (B) Signup and view all the answers

What is the recommended approach for managing the appearance of a dialog in Android applications?

Using AlertDialog.Builder class to create the dialog (C) Signup and view all the answers

What is the recommended alternative to using toasts when an app is in the foreground?

Displaying a Snackbar instead. (C) Signup and view all the answers

In Android development, what is the role of the AlertDialog class?

To build different dialog designs efficiently (B) Signup and view all the answers

When does a toast automatically disappear?

After it has been displayed for a specific timeout. (C) Signup and view all the answers

Why is it important to use a DialogFragment as a container for dialogs?

To manage the appearance and lifecycle of the dialog (C) Signup and view all the answers

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