What is invalidateOptionsMenu in Android?
invalidateOptionsMenu() is used to say Android, that contents of menu have changed, and menu should be redrawn. For example, you click a button which adds another menu item at runtime, or hides menu items group. In this case you should call invalidateOptionsMenu() , so that the system could redraw it on UI.
What is context menu android?
A context menu 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 getMenuInflater Android studio?
You use it to get a MenuInflater . A MenuInflater can “inflate” menu resources, converting the XML representation into a tree of Menu and MenuItem objects. In turn, those objects are used to populate things like the action bar and Toolbar widgets.
What is the use of popup menu?
In android, Popup Menu displays a list of items in a modal popup window that is anchored to the view. The popup menu will appear below the view if there is a room or above the view in case if there is no space and it will be closed automatically when we touch outside of the popup.
What do you mean by pop-up menu?
A context menu (also called contextual, shortcut, and pop up or pop-up menu) is a menu in a graphical user interface (GUI) that appears upon user interaction, such as a right-click mouse operation.
What is context android?
In the official Android documentation, context is defined as: Interface to global information about an application environment. This is an abstract class whose implementation is provided by the Android system.
What is difference between Option menu and context menu in android?
Context Menu – the menu shown when you press and hold an item. Show activity on this post. Google provides an extensive summary of the different menu types in their documentation. The options menu is the primary collection of menu items for an activity.
What is WebView Android studio?
The WebView class is an extension of Android’s View class that allows you to display web pages as a part of your activity layout. It does not include any features of a fully developed web browser, such as navigation controls or an address bar. All that WebView does, by default, is show a web page.