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Questions and Answers
What programming language does Google's Flutter framework utilize?
What programming language does Google's Flutter framework utilize?
Which framework is Microsoft's solution for cross-platform application development?
Which framework is Microsoft's solution for cross-platform application development?
Which development environment is preferred for React Native?
Which development environment is preferred for React Native?
Which of the following technologies is NOT used for web development?
Which of the following technologies is NOT used for web development?
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What company acquired the Android operating system in August 2005?
What company acquired the Android operating system in August 2005?
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Which layout is used to display items in rows and columns?
Which layout is used to display items in rows and columns?
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What is the primary purpose of an event listener in Android?
What is the primary purpose of an event listener in Android?
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What concept describes the process of linking an event handler to an event listener?
What concept describes the process of linking an event handler to an event listener?
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Which layout allows you to specify the exact locations of its children?
Which layout allows you to specify the exact locations of its children?
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In the event handling process, what occurs after an event listener is triggered?
In the event handling process, what occurs after an event listener is triggered?
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Which operating system was developed by Apple Incorporation?
Which operating system was developed by Apple Incorporation?
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What type of kernel does the Android operating system use?
What type of kernel does the Android operating system use?
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Which programming language is predominantly used in iOS development?
Which programming language is predominantly used in iOS development?
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Which of the following best describes the Waterfall methodology?
Which of the following best describes the Waterfall methodology?
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How many languages does iOS support compared to Android?
How many languages does iOS support compared to Android?
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What does the update management system for iOS applications use?
What does the update management system for iOS applications use?
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In terms of customizability, which operating system allows for more freedom?
In terms of customizability, which operating system allows for more freedom?
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Which of the following is NOT a stage in the software development life cycle (SDLC)?
Which of the following is NOT a stage in the software development life cycle (SDLC)?
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What is a key characteristic of the Rapid Application Development (RAD) methodology?
What is a key characteristic of the Rapid Application Development (RAD) methodology?
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What is one of the primary differences between Agile methodology and RAD?
What is one of the primary differences between Agile methodology and RAD?
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What was the original goal of the Android project when it started in 2003?
What was the original goal of the Android project when it started in 2003?
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Which component is NOT part of the Android platform?
Which component is NOT part of the Android platform?
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How does the Agile methodology primarily ensure customer involvement?
How does the Agile methodology primarily ensure customer involvement?
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Which of the following statements about the Waterfall methodology is true?
Which of the following statements about the Waterfall methodology is true?
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Which of the following is a primary advantage of the Agile methodology?
Which of the following is a primary advantage of the Agile methodology?
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What was a significant shift for the Android project after being acquired by Google?
What was a significant shift for the Android project after being acquired by Google?
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What role does the hardware abstraction layer (HAL) serve in the Android architecture?
What role does the hardware abstraction layer (HAL) serve in the Android architecture?
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What is one of the key features of Android Studio that enhances development productivity?
What is one of the key features of Android Studio that enhances development productivity?
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Which of the following correctly describes an activity in Android?
Which of the following correctly describes an activity in Android?
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What is the primary function of the Linux kernel in the Android platform?
What is the primary function of the Linux kernel in the Android platform?
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Which component of an Android application deals with background processing tasks?
Which component of an Android application deals with background processing tasks?
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What type of libraries provide most of the functionality of the Java programming language in Android?
What type of libraries provide most of the functionality of the Java programming language in Android?
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Which of the following features is NOT part of Android Studio?
Which of the following features is NOT part of Android Studio?
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What is true about the Android application project structure?
What is true about the Android application project structure?
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Study Notes
Technologies Used
- Microsoft Blazor, React, Angular JS, Native Script, and Iconic are web technologies commonly used for web development including mobile app UI development.
Cross-Platform Development
- Allows for the creation of native applications for both iOS and Android using a single codebase.
- Offers access to the native features of both platforms, ensuring a seamless user experience.
- Xamarin uses .NET, C#, and F#, and is preferred with Visual Studio.
- React Native utilizes JavaScript and is commonly developed in WebStrome and Visual Studio Code.
- Flutter employs the Dart programming language and is compatible with Android Studio, IntelliJ IDE, and Visual Studio Code.
Mobile Platforms
- iOS is developed by Apple Inc. and powers Apple's iPhone devices.
- Android is developed by Google and is used by Google devices and many other OEMs for smartphones and smart devices. Google acquired Android in 2005.
iOS vs Android
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Key Differences:
- Development: iOS uses a proprietary source model with open-source components, while Android is primarily open source.
- Kernel: iOS uses a hybrid kernel, while Android is Linux-based.
- Languages: iOS development primarily leverages Swift, while Android predominantly utilizes Java and Kotlin.
- Customizability: Android offers high customizability, while iOS is limited unless jailbroken.
Application Development Methodologies
- Software development methodologies define how software applications are built.
- The chosen methodology is influenced by factors like project size, requirements, customer feedback, team size, and experience.
- The basic stages of Software Development Lifecycle are:
- Planning
- Analysis
- Design
- Construction
- Testing
- Implementation
- Support
Waterfall Methodology
- Sequential approach, with a rigid structure emphasizing planning and execution.
- Development proceeds in stages: architecture design, construction, testing, and implementation.
- Assumes clear requirements and a unified vision between the customer and project manager.
Rapid Application Development (RAD) Methodology
- Focuses on rapid prototyping and iterative development.
- Prioritizes producing a working version quickly, continuously iterating and incorporating customer feedback.
- Suitable for projects with flexible requirements and smaller, experienced development teams.
Agile Methodology
- Iterative approach, focusing on building features in distinct sprints.
- Each sprint involves development, testing, and customer review before moving to the next feature.
- Emphasizes frequent customer interaction and finished work deliverables after each sprint.
Android Background
- Originated as a project at Android Inc., initially designed for digital cameras in 2003.
- Shifted focus to developing a smartphone operating system in 2004.
- Acquired by Google in 2005, where it was adapted to be based on the open-source Linux kernel.
Android Platform
- Layers:
- Apps: User-installed apps, as well as core system apps like email, messaging, and calendar.
- Java API Framework: Provides APIs for access to Android features, such as user interfaces, resource management, and lifecycle management.
- Native C/C++ Libraries: Core system components and services are written in C and C++.
- Android Runtime: Handles app execution, including the Java runtime environment.
- Hardware Abstraction Layer (HAL): Offers a standard interface for interacting with device hardware capabilities.
- Linux Kernel: The foundation of Android, managing memory, threads, and other core functionality.
Android Application Components
- Activities: Represent individual screens within an app, serving as entry points for users.
- Services: Background processes that perform tasks without a visible user interface.
Android Studio
- Official Integrated Development Environment (IDE) for Android app development.
- Based on IntelliJ IDEA, it provides features enhancing Android development productivity.
-
Features:
- Gradle-based build system
- Fast and feature-rich emulator
- Unified environment for all Android devices
- Apply Changes feature to push code updates without restarting the app
- Code templates and GitHub integration for app development
- Extensive testing tools
- Lint tools for identifying potential issues
- C++ and NDK support
- Built-in Google Cloud Platform integration
Project Structure
- Android Studio projects contain modules with source code and resource files.
-
Layouts:
- Relative Layout: Child views are positioned relative to each other.
- Table Layout: Views are organized in rows and columns.
- Absolute Layout: Child views are positioned at precise coordinates.
- Frame Layout: Placeholder for displaying a single view.
- List View Layout: Displays a scrollable list of items.
- Grid Layout: Shows items in a two-dimensional grid.
Android Event Handling
- Detects user interactions, like button presses or touch events.
- The Android framework manages events in a first-in, first-out (FIFO) queue.
-
Event Management Concepts:
- Event Listeners: Interfaces that define callback methods triggered by user actions.
- Event Listener Registration: Process of linking an event listener with a view.
- Event Handlers: Methods that handle the events triggered by the event listeners.
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Description
Test your knowledge on various technologies used in mobile app development, including Microsoft Blazor, React, Angular JS, and Xamarin. Explore concepts around cross-platform development, the differences between iOS and Android, and their respective programming languages and IDEs. This quiz is perfect for web developers and tech enthusiasts alike.
