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Houston Community College *
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Course
1301
Subject
Information Systems
Date
Feb 20, 2024
Type
docx
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2
Uploaded by CountQuail2118
Question: What is the importance of XML-based layouts?
Answer: The use of XML-based layouts provides a consistent and somewhat standard means of setting GUI definition format. In common practice, layout details are placed in XML
files while other items are placed in source files.
Question: When does ANR occur?
Answer: The ANR dialog is displayed to the user based on two possible conditions. One is when there is no response to an input event within 5 seconds, and the other is when a broadcast receiver is not done executing within 10 seconds.
Question: What is the importance of settings permissions in app development?
Answer: Permissions allow certain restrictions to be imposed primarily to protect data and code. Without these, codes could be compromised, resulting to defects in functionality.
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 function of an intent filter?
Answer: Because every component needs to indicate which intents they can respond to, intent filters are used to filter out intents that these components are willing to receive. One or more intent filters are possible, depending on the services and activities that are going to make use of it.
Question: What is a Sticky Intent?
Answer: A Sticky Intent is a broadcast from sendStickyBroadcast() method such that the intent floats around even after the broadcast, allowing others to collect data from it.
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: Is it possible to use or add a fragment without using a user interface?
Answer: Yes, it is possible to do that, such as when you want to create a background behavior for a particular activity. You can do this by using add(Fragment,string) method to add a fragment from the activity.
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