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?

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

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

<p>TimePickerDialog.OnTimeSetListener (C)</p> Signup and view all the answers

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

<p>Cancel the action (A)</p> Signup and view all the answers

How can you display a TimePickerDialog using DialogFragment?

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

What is the purpose of a dialog in mobile applications?

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

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

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

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

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

How can you display a DatePickerDialog using DialogFragment?

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

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

<p>DatePickerDialog (A)</p> Signup and view all the answers

What is the purpose of a toast in an app?

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

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

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

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

<p>Displaying a Snackbar instead. (C)</p> Signup and view all the answers

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

<p>To build different dialog designs efficiently (B)</p> Signup and view all the answers

When does a toast automatically disappear?

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

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

<p>To manage the appearance and lifecycle of the dialog (C)</p> Signup and view all the answers
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