Pyelitic_wallpiece_nonadjacencies

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Question: What are the core components under the Android application architecture? Answer: There are 5 key components under the Android application architecture: – services – intent – resource externalization – notifications – content providers Question: What is the importance of Default Resources? Answer: When default resources, which contain default strings and files, are not present, an error will occur and the app will not run. Resources are placed in specially named subdirectories under the project res/ directory. Question: Describe Activities. Answer: Activities are what you refer to as the window to a user interface. Just as you create windows in order to display output or to ask for an input in the form of dialog boxes, activities play the same role, though it may not always be in the form of a user interface. Question: What is a visible activity? Answer: A visible activity is one that sits behind a foreground dialog. It is actually visible to the user, but not necessarily being in the foreground itself. Question: What is an action? Answer: In Android development, an action is what the intent sender wants to do or expected to get as a response. Most application functionality is based on the intended action. Question: What are containers? Answer: Containers, as the name itself implies, holds objects and widgets together, depending on which specific items are needed and in what particular arrangement that is wanted. Containers may hold labels, fields, buttons, or even child containers, as examples.

Question: What is Orientation? Answer: Orientation, which can be set using setOrientation(), dictates if the LinearLayout is represented as a row or as a column. Values are set as either HORIZONTAL or VERTICAL. Question: How are escape characters used as attribute? Answer: Escape characters are preceded by double backslashes. For example, a newline character is created using ‘\\n’

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