Knitback_bullwhipping_krubuts
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University of Texas, Dallas *
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1345
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Information Systems
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Feb 20, 2024
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docx
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2
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Question: Which elements can occur only once and must be present?
Answer: Among the different elements, the “and” elements must be present and can occur only once. The rest are optional, which can occur as many times as needed.
Question: What is a Fragment?
Answer: A fragment is a part or portion of an activity. It is modular in a sense that you can move around or combine with other fragments in a single activity. Fragments are also reusable.
Question: What data types are supported by AIDL?
Answer: AIDL has support for the following data types: -string, -charSequence, -List, -Map, -
all native Java data types like int, long, char and Boolean
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: How can the ANR be prevented?
Answer: One technique that prevents the Android system from concluding a code that has been responsive for a long period of time is to create a child thread. Within the child thread, most of the actual workings of the codes can be placed, so that the main thread runs with minimal periods of unresponsive times.
Question: Describe the Android Framework.
Answer: The Android Framework is an important aspect of the Android Architecture. Here you can find all the classes and methods that developers would need in order to write applications on the Android environment.
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 ANR?
Answer: ANR is short for Application Not Responding. This is actually a dialog that appears to the user whenever an application have been unresponsive for a long period of time.
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