Podcast
Questions and Answers
What is the primary purpose of the App Bar in an Android application?
What is the primary purpose of the App Bar in an Android application?
What method is used to override options item selection in Android?
What method is used to override options item selection in Android?
Which of the following is NOT a type of menu available in Android development?
Which of the following is NOT a type of menu available in Android development?
Which element typically provides users with choices for actions relating to the content displayed on the screen?
Which element typically provides users with choices for actions relating to the content displayed on the screen?
Signup and view all the answers
Which menu item calls the showSettings() method when selected?
Which menu item calls the showSettings() method when selected?
Signup and view all the answers
In which scenario are contextual menus most commonly used?
In which scenario are contextual menus most commonly used?
Signup and view all the answers
Which component is specifically mentioned as part of the App Bar's functionality?
Which component is specifically mentioned as part of the App Bar's functionality?
Signup and view all the answers
What does the default case in the onOptionsItemSelected() method do?
What does the default case in the onOptionsItemSelected() method do?
Signup and view all the answers
What is the purpose of the action overflow button in the app bar?
What is the purpose of the action overflow button in the app bar?
Signup and view all the answers
What type of dialog would you use to allow users to select a specific date?
What type of dialog would you use to allow users to select a specific date?
Signup and view all the answers
What is a defining feature of contextual menus in Android?
What is a defining feature of contextual menus in Android?
Signup and view all the answers
Which of the following is the first step in implementing an options menu?
Which of the following is the first step in implementing an options menu?
Signup and view all the answers
Which of the following menus allows for instant actions without occupying much screen space?
Which of the following menus allows for instant actions without occupying much screen space?
Signup and view all the answers
What purpose does the action overflow button serve in the App Bar?
What purpose does the action overflow button serve in the App Bar?
Signup and view all the answers
Which statement about adding menu item attributes is true?
Which statement about adding menu item attributes is true?
Signup and view all the answers
What method must be overridden to inflate the options menu in an Android Activity?
What method must be overridden to inflate the options menu in an Android Activity?
Signup and view all the answers
What type of View can contextual menus be deployed on?
What type of View can contextual menus be deployed on?
Signup and view all the answers
Which menu type is designed to appear when the user performs a long press on an item?
Which menu type is designed to appear when the user performs a long press on an item?
Signup and view all the answers
When adding entries for menu items, which of the following is NOT a typical step?
When adding entries for menu items, which of the following is NOT a typical step?
Signup and view all the answers
What happens when the action_favorites menu item is selected?
What happens when the action_favorites menu item is selected?
Signup and view all the answers
How can icons be added to menu items in an Android application?
How can icons be added to menu items in an Android application?
Signup and view all the answers
Which of the following activities can be accessed through the options menu?
Which of the following activities can be accessed through the options menu?
Signup and view all the answers
What does the onOptionsItemSelected() method handle?
What does the onOptionsItemSelected() method handle?
Signup and view all the answers
What is the position of the action overflow button in the app bar?
What is the position of the action overflow button in the app bar?
Signup and view all the answers
What is the main purpose of the onCreateContextMenu() method?
What is the main purpose of the onCreateContextMenu() method?
Signup and view all the answers
Which method allows you to handle selections made in a context menu?
Which method allows you to handle selections made in a context menu?
Signup and view all the answers
In the onCreateContextMenu() method, which object is used to inflate the menu layout?
In the onCreateContextMenu() method, which object is used to inflate the menu layout?
Signup and view all the answers
What action does the context item with the ID R.id.context_edit perform?
What action does the context item with the ID R.id.context_edit perform?
Signup and view all the answers
Which of the following statements about dialogs is NOT true?
Which of the following statements about dialogs is NOT true?
Signup and view all the answers
What elements can an AlertDialog include?
What elements can an AlertDialog include?
Signup and view all the answers
What is the purpose of calling super.onContextItemSelected(item)?
What is the purpose of calling super.onContextItemSelected(item)?
Signup and view all the answers
Which method allows a user to pick a time from a dialog?
Which method allows a user to pick a time from a dialog?
Signup and view all the answers
What method is used to create an alert dialog in the provided code?
What method is used to create an alert dialog in the provided code?
Signup and view all the answers
Which method allows you to set the action for the positive button in an AlertDialog?
Which method allows you to set the action for the positive button in an AlertDialog?
Signup and view all the answers
What does the method alertDialog.setMessage() do in the given example?
What does the method alertDialog.setMessage() do in the given example?
Signup and view all the answers
What does the DialogInterface.OnClickListener do in the context of an AlertDialog?
What does the DialogInterface.OnClickListener do in the context of an AlertDialog?
Signup and view all the answers
If a developer wants to add a neutral button to the dialog, which method should they use?
If a developer wants to add a neutral button to the dialog, which method should they use?
Signup and view all the answers
What is the purpose of setting the title in an AlertDialog?
What is the purpose of setting the title in an AlertDialog?
Signup and view all the answers
Which of the following correctly describes the method call 'alertDialog.setNegativeButton()'?
Which of the following correctly describes the method call 'alertDialog.setNegativeButton()'?
Signup and view all the answers
In the provided code, which parameter does 'setPositiveButton()' require to function correctly?
In the provided code, which parameter does 'setPositiveButton()' require to function correctly?
Signup and view all the answers
What is the primary function of a floating context menu?
What is the primary function of a floating context menu?
Signup and view all the answers
Which of the following best describes contextual action mode?
Which of the following best describes contextual action mode?
Signup and view all the answers
What is the first step in creating a floating context menu?
What is the first step in creating a floating context menu?
Signup and view all the answers
In which method should the context menu be inflated for a View?
In which method should the context menu be inflated for a View?
Signup and view all the answers
What is the purpose of the method onContextItemSelected()?
What is the purpose of the method onContextItemSelected()?
Signup and view all the answers
Which line of code is necessary to register a TextView for context menus?
Which line of code is necessary to register a TextView for context menus?
Signup and view all the answers
What is the main focus of contextual action mode in regards to Views?
What is the main focus of contextual action mode in regards to Views?
Signup and view all the answers
After creating an XML menu resource file, which step follows next in building a floating context menu?
After creating an XML menu resource file, which step follows next in building a floating context menu?
Signup and view all the answers
Study Notes
Android Developer Fundamentals V2 - Menus
- Android menus are used to display options for users in an app
- Types of menus include app bars, context menus, contextual action bars, and popup menus
- Dialogs are another type of user interface element that frequently appears in conjunction with menus
App Bar with Options Menu
- The app bar is a standard element at the top of most Android screens
- It typically includes a navigation icon, activity title, options menu icons, and an overflow button
- This is a common user interface design pattern across Android devices
- The options menu appears when the overflow button is pressed
- Action icons in the app bar show important actions for the app
- The three-dot overflow button opens a full menu of options
Adding Options Menu
- Create an XML menu resource that defines menu items
- (Menu XML example
menu_main.xml)
- (Menu XML example
- Use
onCreateOptionsMenu()in the Activity to inflate the menu. - Respond to item clicks with
onOptionsItemSelected()or appropriate attributes likeandroid:onClick.
Contextual Menus
- Contextual menus are triggered by actions (e.g., long-press) on specific parts of the screen.
- They provide context-specific actions for a particular view in the app.
- These menus appear on the screen near the user's input (long-press).
Steps for a Contextual Menu
- Create
menu_context.xmlfor menu items - Register a view to
onCreateContextMenuto define which view should show a menu- (Example:
registerForContextMenu(article_text);)
- (Example:
- In
onCreateContextMenu(...):- Get menu inflater from the context
- Inflate menu:
inflater.inflate(R.menu.menu_context, menu);
Dialogs
- Dialogs appear as overlaying windows on top of the main app window.
- Dialogs give users choices or more information
- Dialogs interrupt the app's flow until the user acts.
- Types of dialogs include alert dialogs, date pickers, and time pickers.
Building an AlertDialog
- Use
AlertDialog.Builderto build dialogs with a title, content, and buttons - Buttons must use
setPositiveButton,setNegativeButton, orsetNeutralButtonmethods of the builder to implement functionality - In
onClickShowAlert, create and configure the builder - Create different methods to handle button clicks for appropriate responses
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz covers the essential concepts of menus in Android development, including app bars, context menus, and popup menus. Understand how to implement and manage these user interface elements effectively in your applications. Test your knowledge on creating options menus and using XML resources.
