Which of the following best explains the Android context menus? … It is a floating menu that appears when the user performs a long-click on an element. It provides actions that affect the selected content or context frame.
What is the use of menus in Android?
For all menu types, Android provides a standard XML format to define menu items. Instead of building a menu in your activity’s code, you should define a menu and all its items in an XML menu resource. You can then inflate the menu resource (load it as a Menu object) in your activity or fragment.
What type of menu does Android support?
There are three types of menus in Android: Popup, Contextual and Options. Each one has a specific use case and code that goes along with it.
What is the use of Inflater in android?
What is an Inflater ? To summarize what the LayoutInflater Documentation says… A LayoutInflater is one of the Android System Services that is responsible for taking your XML files that define a layout, and converting them into View objects. The OS then uses these view objects to draw the screen.
What are two types of popup menu?
Usage
- Contextual Action Modes – An “action mode” which is enabled when a user selects an item. …
- PopupMenu – A modal menu that is anchored to a particular view within an activity. …
- PopupWindow – A simple dialog box that gains focus when appearing on screen.
What are the types of menu card?
The five types of menus most commonly used are a la carte menus, static menus, du jour menus, cycle menus, and fixed menus.
- What Is an a La Carte Menu?
- What is a Du Jour Menu?
- What is a Cycle Menu?
- What is a Static Menu?
- What Is a Fixed Menu?
- What is a Beverage Menu?
- What is a Cocktail Menu?
- What is a Dessert Menu?
What is Inflater class in android?
The LayoutInflater class is used to instantiate the contents of layout XML files into their corresponding View objects. In other words, it takes an XML file as input and builds the View objects from it.
What is onCreateOptionsMenu in android?
You use onCreateOptionsMenu() to specify the options menu for an activity. In this method, you can inflate your menu resource (defined in XML) into the Menu provided in the callback.
What is attach to root in android?
in this case is the widget/layout that is surrounding the view objects that you want to inflate using findViewById(). attachToRoot: attaches the views to their parent (includes them in the parent hierarchy), so any touch event that the views recieve will also be transfered to parent view.
What is activity and its lifecycle?
Activity in Android is one of the most important components of Android. It is the Activity where we put the UI of our application. So, if we are new to Android development then we should learn what an Activity is in Android and what is the lifecycle of an Activity.
What is activity in Android with example?
You implement an activity as a subclass of the Activity class. An activity provides the window in which the app draws its UI. … Generally, one activity implements one screen in an app. For instance, one of an app’s activities may implement a Preferences screen, while another activity implements a Select Photo screen.
What are the 4 types of app components?
Android applications are broken down into four main components: activities, services, content providers, and broadcast receivers. Approaching Android from these four components gives the developer the competitive edge to be a trendsetter in mobile application development.