Android Studio Arctic Fox Essentials - Kotlin Edition: Developing Android Apps Using Android Studio 2020.31 and Kotlin

✍ Scribed by Neil Smyth

• Publisher: Payload Media
• Year: 2021
• Tongue: English
• Leaves: 791
• Edition: 1
• Category: Library

✦ Synopsis

Fully updated for Android Studio Arctic Fox, the goal of this book is to teach the skills necessary to develop Android-based applications using the Kotlin programming language.

Beginning with the basics, this book provides an outline of the steps necessary to set up an Android development and testing environment followed by an introduction to programming in Kotlin including data types, flow control, functions, lambdas, and object-oriented programming.

An overview of Android Studio is included covering areas such as tool windows, the code editor, and the Layout Editor tool. An introduction to the architecture of Android is followed by an in-depth look at the design of Android applications and user interfaces using the Android Studio environment.

Chapters are also included covering the Android Architecture Components including view models, lifecycle management, Room database access, the Database Inspector, app navigation, live data, and data binding.

More advanced topics such as intents are also covered, as are touch screen handling, gesture recognition, and the recording and playback of audio. This edition of the book also covers printing, transitions, cloud-based file storage, and foldable device support.

The concepts of material design are also covered in detail, including the use of floating action buttons, Snackbars, tabbed interfaces, card views, navigation drawers, and collapsing toolbars.

Other key features of Android Studio Arctic Fox and Android are also covered in detail including the Layout Editor, the ConstraintLayout and ConstraintSet classes, MotionLayout Editor, view binding, constraint chains, barriers, and direct reply notifications.

Chapters also cover advanced features of Android Studio such as App Links, Dynamic Delivery, Gradle build configuration, and submitting apps to the Google Play Developer Console.

Assuming you already have some programming experience, are ready to download Android Studio and the Android SDK, have access to a Windows, Mac, or Linux system, and ideas for some apps to develop, you are ready to get started.

✦ Table of Contents

1. Introduction
   1.1 Downloading the Code Samples
   1.2 Feedback
   1.3 Errata
2. Setting up an Android Studio Development Environment
   2.1 System Requirements
   2.2 Downloading the Android Studio Package
   2.3 Installing Android Studio
   2.3.1 Installation on Windows
   2.3.2 Installation on macOS
   2.3.3 Installation on Linux
   2.4 The Android Studio Setup Wizard
   2.5 Installing Additional Android SDK Packages
   2.6 Making the Android SDK Tools Command-line Accessible
   2.6.1 Windows 8.1
   2.6.2 Windows 10
   2.6.3 Linux
   2.6.4 macOS
   2.7 Android Studio Memory Management
   2.8 Updating Android Studio and the SDK
   2.9 Summary
3. Creating an Example Android App in Android Studio
   3.1 About the Project
   3.2 Creating a New Android Project
   3.3 Creating an Activity
   3.4 Defining the Project and SDK Settings
   3.5 Modifying the Example Application
   3.6 Modifying the User Interface
   3.7 Reviewing the Layout and Resource Files
   3.8 Adding the Kotlin Extensions Plugin
   3.9 Adding Interaction
   3.10 Summary
4. Creating an Android Virtual Device (AVD) in Android Studio
   4.1 About Android Virtual Devices
   4.2 Creating a New AVD
   4.3 Starting the Emulator
   4.4 Running the Application in the AVD
   4.5 Running on Multiple Devices
   4.6 Stopping a Running Application
   4.7 Supporting Dark Theme
   4.8 Running the Emulator in a Tool Window
   4.9 AVD Command-line Creation
   4.10 Android Virtual Device Configuration Files
   4.11 Moving and Renaming an Android Virtual Device
   4.12 Summary
5. Using and Configuring the Android Studio AVD Emulator
   5.1 The Emulator Environment
   5.2 The Emulator Toolbar Options
   5.3 Working in Zoom Mode
   5.4 Resizing the Emulator Window
   5.5 Extended Control Options
   5.5.1 Location
   5.5.2 Displays
   5.5.3 Cellular
   5.5.4 Battery
   5.5.5 Camera
   5.5.6 Phone
   5.5.7 Directional Pad
   5.5.8 Microphone
   5.5.9 Fingerprint
   5.5.10 Virtual Sensors
   5.5.11 Snapshots
   5.5.12 Record and Playback
   5.5.13 Google Play
   5.5.14 Settings
   5.5.15 Help
   5.6 Working with Snapshots
   5.7 Configuring Fingerprint Emulation
   5.8 The Emulator in Tool Window Mode
   5.9 Summary
6. A Tour of the Android Studio User Interface
   6.1 The Welcome Screen
   6.2 The Main Window
   6.3 The Tool Windows
   6.4 Android Studio Keyboard Shortcuts
   6.5 Switcher and Recent Files Navigation
   6.6 Changing the Android Studio Theme
   6.7 Summary
7. Testing Android Studio Apps on a Physical Android Device
   7.1 An Overview of the Android Debug Bridge (ADB)
   7.2 Enabling ADB on Android-based Devices
   7.2.1 macOS ADB Configuration
   7.2.2 Windows ADB Configuration
   7.2.3 Linux adb Configuration
   7.3 Testing the adb Connection
   7.4 Summary
8. The Basics of the Android Studio Code Editor
   8.1 The Android Studio Editor
   8.2 Splitting the Editor Window
   8.3 Code Completion
   8.4 Statement Completion
   8.5 Parameter Information
   8.6 Parameter Name Hints
   8.7 Code Generation
   8.8 Code Folding
   8.9 Quick Documentation Lookup
   8.10 Code Reformatting
   8.11 Finding Sample Code
   8.12 Live Templates
   8.13 Summary
9. An Overview of the Android Architecture
   9.1 The Android Software Stack
   9.2 The Linux Kernel
   9.3 Android Runtime – ART
   9.4 Android Libraries
   9.4.1 C/C++ Libraries
   9.5 Application Framework
   9.6 Applications
   9.7 Summary
10. The Anatomy of an Android Application
    10.1 Android Activities
    10.2 Android Fragments
    10.3 Android Intents
    10.4 Broadcast Intents
    10.5 Broadcast Receivers
    10.6 Android Services
    10.7 Content Providers
    10.8 The Application Manifest
    10.9 Application Resources
    10.10 Application Context
    10.11 Summary
11. An Introduction to Kotlin
    11.1 What is Kotlin?
    11.2 Kotlin and Java
    11.3 Converting from Java to Kotlin
    11.4 Kotlin and Android Studio
    11.5 Experimenting with Kotlin
    11.6 Semi-colons in Kotlin
    11.7 Summary
12. Kotlin Data Types,Variables and Nullability
    12.1 Kotlin Data Types
    12.1.1 Integer Data Types
    12.1.2 Floating Point Data Types
    12.1.3 Boolean Data Type
    12.1.4 Character Data Type
    12.1.5 String Data Type
    12.1.6 Escape Sequences
    12.2 Mutable Variables
    12.3 Immutable Variables
    12.4 Declaring Mutable and Immutable Variables
    12.5 Data Types are Objects
    12.6 Type Annotations and Type Inference
    12.7 Nullable Type
    12.8 The Safe Call Operator
    12.9 Not-Null Assertion
    12.10 Nullable Types and the let Function
    12.11 Late Initialization (lateinit)
    12.12 The Elvis Operator
    12.13 Type Casting and Type Checking
    12.14 Summary
13. Kotlin Operators and Expressions
    13.1 Expression Syntax in Kotlin
    13.2 The Basic Assignment Operator
    13.3 Kotlin Arithmetic Operators
    13.4 Augmented Assignment Operators
    13.5 Increment and Decrement Operators
    13.6 Equality Operators
    13.7 Boolean Logical Operators
    13.8 Range Operator
    13.9 Bitwise Operators
    13.9.1 Bitwise Inversion
    13.9.2 Bitwise AND
    13.9.3 Bitwise OR
    13.9.4 Bitwise XOR
    13.9.5 Bitwise Left Shift
    13.9.6 Bitwise Right Shift
    13.10 Summary
14. Kotlin Control flow
    14.1 Looping Control flow
    14.1.1 The Kotlin for-in Statement
    14.1.2 The while Loop
    14.1.3 The do ... while loop
    14.1.4 Breaking from Loops
    14.1.5 The continue Statement
    14.1.6 Break and Continue Labels
    14.2 Conditional Control flow
    14.2.1 Using the if Expressions
    14.2.2 Using if ... else … Expressions
    14.2.3 Using if ... else if ... Expressions
    14.2.4 Using the when Statement
    14.3 Summary
15. An Overview of Kotlin Functions and Lambdas
    15.1 What is a Function?
    15.2 How to Declare a Kotlin Function
    15.3 Calling a Kotlin Function
    15.4 Single Expression Functions
    15.5 Local Functions
    15.6 Handling Return Values
    15.7 Declaring Default Function Parameters
    15.8 Variable Number of Function Parameters
    15.9 Lambda Expressions
    15.10 Higher-order Functions
    15.11 Summary
16. The Basics of Object Oriented Programming in Kotlin
    16.1 What is an Object?
    16.2 What is a Class?
    16.3 Declaring a Kotlin Class
    16.4 Adding Properties to a Class
    16.5 Defining Methods
    16.6 Declaring and Initializing a Class Instance
    16.7 Primary and Secondary Constructors
    16.8 Initializer Blocks
    16.9 Calling Methods and Accessing Properties
    16.10 Custom Accessors
    16.11 Nested and Inner Classes
    16.12 Companion Objects
    16.13 Summary
17. An Introduction to Kotlin Inheritance and Subclassing
    17.1 Inheritance, Classes and Subclasses
    17.2 Subclassing Syntax
    17.3 A Kotlin Inheritance Example
    17.4 Extending the Functionality of a Subclass
    17.5 Overriding Inherited Methods
    17.6 Adding a Custom Secondary Constructor
    17.7 Using the SavingsAccount Class
    17.8 Summary
18. An Overview of Android View Binding
    18.1 Find View by Id and Synthetic Properties
    18.2 View Binding
    18.3 Converting the AndroidSample project
    18.4 Enabling View Binding
    18.5 Using View Binding
    18.6 Choosing an Option
    18.7 View Binding in the Book Examples
    18.8 Migrating a Project to View Binding
    18.9 Summary
19. Understanding Android Application and Activity Lifecycles
    19.1 Android Applications and Resource Management
    19.2 Android Process States
    19.2.1 Foreground Process
    19.2.2 Visible Process
    19.2.3 Service Process
    19.2.4 Background Process
    19.2.5 Empty Process
    19.3 Inter-Process Dependencies
    19.4 The Activity Lifecycle
    19.5 The Activity Stack
    19.6 Activity States
    19.7 Configuration Changes
    19.8 Handling State Change
    19.9 Summary
20. Handling Android Activity State Changes
    20.1 New vs. Old Lifecycle Techniques
    20.2 The Activity and Fragment Classes
    20.3 Dynamic State vs. Persistent State
    20.4 The Android Lifecycle Methods
    20.5 Lifetimes
    20.6 Foldable Devices and Multi-Resume
    20.7 Disabling Configuration Change Restarts
    20.8 Lifecycle Method Limitations
    20.9 Summary
21. Android Activity State Changes by Example
    21.1 Creating the State Change Example Project
    21.2 Designing the User Interface
    21.3 Overriding the Activity Lifecycle Methods
    21.4 Filtering the Logcat Panel
    21.5 Running the Application
    21.6 Experimenting with the Activity
    21.7 Summary
22. Saving and Restoring the State of an Android Activity
    22.1 Saving Dynamic State
    22.2 Default Saving of User Interface State
    22.3 The Bundle Class
    22.4 Saving the State
    22.5 Restoring the State
    22.6 Testing the Application
    22.7 Summary
23. Understanding Android Views, View Groups and Layouts
    23.1 Designing for Different Android Devices
    23.2 Views and View Groups
    23.3 Android Layout Managers
    23.4 The View Hierarchy
    23.5 Creating User Interfaces
    23.6 Summary
24. A Guide to the Android Studio Layout Editor Tool
    24.1 Basic vs. Empty Activity Templates
    24.2 The Android Studio Layout Editor
    24.3 Design Mode
    24.4 The Palette
    24.5 Design Mode and Layout Views
    24.6 Night Mode
    24.7 Code Mode
    24.8 Split Mode
    24.9 Setting Attributes
    24.10 Transforms
    24.11 Tools Visibility Toggles
    24.12 Converting Views
    24.13 Displaying Sample Data
    24.14 Creating a Custom Device Definition
    24.15 Changing the Current Device
    24.16 Layout Validation (Multi Preview)
    24.17 Summary
25. A Guide to the Android ConstraintLayout
    25.1 How ConstraintLayout Works
    25.1.1 Constraints
    25.1.2 Margins
    25.1.3 Opposing Constraints
    25.1.4 Constraint Bias
    25.1.5 Chains
    25.1.6 Chain Styles
    25.2 Baseline Alignment
    25.3 Configuring Widget Dimensions
    25.4 Guideline Helper
    25.5 Group Helper
    25.6 Barrier Helper
    25.7 Flow Helper
    25.8 Ratios
    25.9 ConstraintLayout Advantages
    25.10 ConstraintLayout Availability
    25.11 Summary
26. A Guide to Using ConstraintLayout in Android Studio
    26.1 Design and Layout Views
    26.2 Autoconnect Mode
    26.3 Inference Mode
    26.4 Manipulating Constraints Manually
    26.5 Adding Constraints in the Inspector
    26.6 Viewing Constraints in the Attributes Window
    26.7 Deleting Constraints
    26.8 Adjusting Constraint Bias
    26.9 Understanding ConstraintLayout Margins
    26.10 The Importance of Opposing Constraints and Bias
    26.11 Configuring Widget Dimensions
    26.12 Design Time Tools Positioning
    26.13 Adding Guidelines
    26.14 Adding Barriers
    26.15 Adding a Group
    26.16 Working with the Flow Helper
    26.17 Widget Group Alignment and Distribution
    26.18 Converting other Layouts to ConstraintLayout
    26.19 Summary
27. Working with ConstraintLayout Chains and Ratios in Android Studio
    27.1 Creating a Chain
    27.2 Changing the Chain Style
    27.3 Spread Inside Chain Style
    27.4 Packed Chain Style
    27.5 Packed Chain Style with Bias
    27.6 Weighted Chain
    27.7 Working with Ratios
    27.8 Summary
28. An Android Studio Layout Editor ConstraintLayout Tutorial
    28.1 An Android Studio Layout Editor Tool Example
    28.2 Creating a New Activity
    28.3 Preparing the Layout Editor Environment
    28.4 Adding the Widgets to the User Interface
    28.5 Adding the Constraints
    28.6 Testing the Layout
    28.7 Using the Layout Inspector
    28.8 Summary
29. Manual XML Layout Design in Android Studio
    29.1 Manually Creating an XML Layout
    29.2 Manual XML vs. Visual Layout Design
    29.3 Summary
30. Managing Constraints using Constraint Sets
    30.1 Kotlin Code vs. XML Layout Files
    30.2 Creating Views
    30.3 View Attributes
    30.4 Constraint Sets
    30.4.1 Establishing Connections
    30.4.2 Applying Constraints to a Layout
    30.4.3 Parent Constraint Connections
    30.4.4 Sizing Constraints
    30.4.5 Constraint Bias
    30.4.6 Alignment Constraints
    30.4.7 Copying and Applying Constraint Sets
    30.4.8 ConstraintLayout Chains
    30.4.9 Guidelines
    30.4.10 Removing Constraints
    30.4.11 Scaling
    30.4.12 Rotation
    30.5 Summary
31. An Android ConstraintSet Tutorial
    31.1 Creating the Example Project in Android Studio
    31.2 Adding Views to an Activity
    31.3 Setting View Attributes
    31.4 Creating View IDs
    31.5 Configuring the Constraint Set
    31.6 Adding the EditText View
    31.7 Converting Density Independent Pixels (dp) to Pixels (px)
    31.8 Summary
32. A Guide to using Apply Changes in Android Studio
    32.1 Introducing Apply Changes
    32.2 Understanding Apply Changes Options
    32.3 Using Apply Changes
    32.4 Configuring Apply Changes Fallback Settings
    32.5 An Apply Changes Tutorial
    32.6 Using Apply Code Changes
    32.7 Using Apply Changes and Restart Activity
    32.8 Using Run App
    32.9 Summary
33. An Overview and Example of Android Event Handling
    33.1 Understanding Android Events
    33.2 Using the android:onClick Resource
    33.3 Event Listeners and Callback Methods
    33.4 An Event Handling Example
    33.5 Designing the User Interface
    33.6 The Event Listener and Callback Method
    33.7 Consuming Events
    33.8 Summary
34. Android Touch and Multi-touch Event Handling
    34.1 Intercepting Touch Events
    34.2 The MotionEvent Object
    34.3 Understanding Touch Actions
    34.4 Handling Multiple Touches
    34.5 An Example Multi-Touch Application
    34.6 Designing the Activity User Interface
    34.7 Implementing the Touch Event Listener
    34.8 Running the Example Application
    34.9 Summary
35. Detecting Common Gestures Using the Android Gesture Detector Class
    35.1 Implementing Common Gesture Detection
    35.2 Creating an Example Gesture Detection Project
    35.3 Implementing the Listener Class
    35.4 Creating the GestureDetectorCompat Instance
    35.5 Implementing the onTouchEvent() Method
    35.6 Testing the Application
    35.7 Summary
36. Implementing Custom Gesture and Pinch Recognition on Android
    36.1 The Android Gesture Builder Application
    36.2 The GestureOverlayView Class
    36.3 Detecting Gestures
    36.4 Identifying Specific Gestures
    36.5 Installing and Running the Gesture Builder Application
    36.6 Creating a Gestures File
    36.7 Creating the Example Project
    36.8 Extracting the Gestures File from the SD Card
    36.9 Adding the Gestures File to the Project
    36.10 Designing the User Interface
    36.11 Loading the Gestures File
    36.12 Registering the Event Listener
    36.13 Implementing the onGesturePerformed Method
    36.14 Testing the Application
    36.15 Configuring the GestureOverlayView
    36.16 Intercepting Gestures
    36.17 Detecting Pinch Gestures
    36.18 A Pinch Gesture Example Project
    36.19 Summary
37. An Introduction to Android Fragments
    37.1 What is a Fragment?
    37.2 Creating a Fragment
    37.3 Adding a Fragment to an Activity using the Layout XML File
    37.4 Adding and Managing Fragments in Code
    37.5 Handling Fragment Events
    37.6 Implementing Fragment Communication
    37.7 Summary
38. Using Fragments in Android Studio - An Example
    38.1 About the Example Fragment Application
    38.2 Creating the Example Project
    38.3 Creating the First Fragment Layout
    38.4 Migrating a Fragment to View Binding
    38.5 Adding the Second Fragment
    38.6 Adding the Fragments to the Activity
    38.7 Making the Toolbar Fragment Talk to the Activity
    38.8 Making the Activity Talk to the Text Fragment
    38.9 Testing the Application
    38.10 Summary
39. Modern Android App Architecture with Jetpack
    39.1 What is Android Jetpack?
    39.2 The “Old” Architecture
    39.3 Modern Android Architecture
    39.4 The ViewModel Component
    39.5 The LiveData Component
    39.6 ViewModel Saved State
    39.7 LiveData and Data Binding
    39.8 Android Lifecycles
    39.9 Repository Modules
    39.10 Summary
40. An Android Jetpack ViewModel Tutorial
    40.1 About the Project
    40.2 Creating the ViewModel Example Project
    40.3 Reviewing the Project
    40.3.1 The Main Activity
    40.3.2 The Content Fragment
    40.3.3 The ViewModel
    40.4 Designing the Fragment Layout
    40.5 Implementing the View Model
    40.6 Associating the Fragment with the View Model
    40.7 Modifying the Fragment
    40.8 Accessing the ViewModel Data
    40.9 Testing the Project
    40.10 Summary
41. An Android Jetpack LiveData Tutorial
    41.1 LiveData - A Recap
    41.2 Adding LiveData to the ViewModel
    41.3 Implementing the Observer
    41.4 Summary
42. An Overview of Android Jetpack Data Binding
    42.1 An Overview of Data Binding
    42.2 The Key Components of Data Binding
    42.2.1 The Project Build Configuration
    42.2.2 The Data Binding Layout File
    42.2.3 The Layout File Data Element
    42.2.4 The Binding Classes
    42.2.5 Data Binding Variable Configuration
    42.2.6 Binding Expressions (One-Way)
    42.2.7 Binding Expressions (Two-Way)
    42.2.8 Event and Listener Bindings
    42.3 Summary
43. An Android Jetpack Data Binding Tutorial
    43.1 Removing the Redundant Code
    43.2 Enabling Data Binding
    43.3 Adding the Layout Element
    43.4 Adding the Data Element to Layout File
    43.5 Working with the Binding Class
    43.6 Assigning the ViewModel Instance to the Data Binding Variable
    43.7 Adding Binding Expressions
    43.8 Adding the Conversion Method
    43.9 Adding a Listener Binding
    43.10 Testing the App
    43.11 Summary
44. An Android ViewModel Saved State Tutorial
    44.1 Understanding ViewModel State Saving
    44.2 Implementing ViewModel State Saving
    44.3 Saving and Restoring State
    44.4 Adding Saved State Support to the ViewModelDemo Project
    44.5 Summary
45. Working with Android Lifecycle-Aware Components
    45.1 Lifecycle Awareness
    45.2 Lifecycle Owners
    45.3 Lifecycle Observers
    45.4 Lifecycle States and Events
    45.5 Summary
46. An Android Jetpack Lifecycle Awareness Tutorial
    46.1 Creating the Example Lifecycle Project
    46.2 Creating a Lifecycle Observer
    46.3 Adding the Observer
    46.4 Testing the Observer
    46.5 Creating a Lifecycle Owner
    46.6 Testing the Custom Lifecycle Owner
    46.7 Summary
47. An Overview of the Navigation Architecture Component
    47.1 Understanding Navigation
    47.2 Declaring a Navigation Host
    47.3 The Navigation Graph
    47.4 Accessing the Navigation Controller
    47.5 Triggering a Navigation Action
    47.6 Passing Arguments
    47.7 Summary
48. An Android Jetpack Navigation Component Tutorial
    48.1 Creating the NavigationDemo Project
    48.2 Adding Navigation to the Build Configuration
    48.3 Creating the Navigation Graph Resource File
    48.4 Declaring a Navigation Host
    48.5 Adding Navigation Destinations
    48.6 Designing the Destination Fragment Layouts
    48.7 Adding an Action to the Navigation Graph
    48.8 Implement the OnFragmentInteractionListener
    48.9 Adding View Binding Support to the Destination Fragments
    48.10 Triggering the Action
    48.11 Passing Data Using Safeargs
    48.12 Summary
49. An Introduction to MotionLayout
    49.1 An Overview of MotionLayout
    49.2 MotionLayout
    49.3 MotionScene
    49.4 Configuring ConstraintSets
    49.5 Custom Attributes
    49.6 Triggering an Animation
    49.7 Arc Motion
    49.8 Keyframes
    49.8.1 Attribute Keyframes
    49.8.2 Position Keyframes
    49.9 Time Linearity
    49.10 KeyTrigger
    49.11 Cycle and Time Cycle Keyframes
    49.12 Starting an Animation from Code
    49.13 Summary
50. An Android MotionLayout Editor Tutorial
    50.1 Creating the MotionLayoutDemo Project
    50.2 ConstraintLayout to MotionLayout Conversion
    50.3 Configuring Start and End Constraints
    50.4 Previewing the MotionLayout Animation
    50.5 Adding an OnClick Gesture
    50.6 Adding an Attribute Keyframe to the Transition
    50.7 Adding a CustomAttribute to a Transition
    50.8 Adding Position Keyframes
    50.9 Summary
51. A MotionLayout KeyCycle Tutorial
    51.1 An Overview of Cycle Keyframes
    51.2 Using the Cycle Editor
    51.3 Creating the KeyCycleDemo Project
    51.4 Configuring the Start and End Constraints
    51.5 Creating the Cycles
    51.6 Previewing the Animation
    51.7 Adding the KeyFrameSet to the MotionScene
    51.8 Summary
52. Working with the Floating Action Button and Snackbar
    52.1 The Material Design
    52.2 The Design Library
    52.3 The Floating Action Button (FAB)
    52.4 The Snackbar
    52.5 Creating the Example Project
    52.6 Reviewing the Project
    52.7 Removing Navigation Features
    52.8 Changing the Floating Action Button
    52.9 Adding an Action to the Snackbar
    52.10 Summary
53. Creating a Tabbed Interface using the TabLayout Component
    53.1 An Introduction to the ViewPager2
    53.2 An Overview of the TabLayout Component
    53.3 Creating the TabLayoutDemo Project
    53.4 Creating the First Fragment
    53.5 Duplicating the Fragments
    53.6 Adding the TabLayout and ViewPager2
    53.7 Creating the Pager Adapter
    53.8 Performing the Initialization Tasks
    53.9 Testing the Application
    53.10 Customizing the TabLayout
    53.11 Summary
54. Working with the RecyclerView and CardView Widgets
    54.1 An Overview of the RecyclerView
    54.2 An Overview of the CardView
    54.3 Summary
55. An Android RecyclerView and CardView Tutorial
    55.1 Creating the CardDemo Project
    55.2 Modifying the Basic Activity Project
    55.3 Designing the CardView Layout
    55.4 Adding the RecyclerView
    55.5 Adding the Image Files
    55.6 Creating the RecyclerView Adapter
    55.7 Initializing the RecyclerView Component
    55.8 Testing the Application
    55.9 Responding to Card Selections
    55.10 Summary
56. A Layout Editor Sample Data Tutorial
    56.1 Adding Sample Data to a Project
    56.2 Using Custom Sample Data
    56.3 Summary
57. Working with the AppBar and Collapsing Toolbar Layouts
    57.1 The Anatomy of an AppBar
    57.2 The Example Project
    57.3 Coordinating the RecyclerView and Toolbar
    57.4 Introducing the Collapsing Toolbar Layout
    57.5 Changing the Title and Scrim Color
    57.6 Summary
58. An Android Studio Primary/Detail Flow Tutorial
    58.1 The Primary/Detail Flow
    58.2 Creating a Primary/Detail Flow Activity
    58.3 Modifying the Primary/Detail Flow Template
    58.4 Changing the Content Model
    58.5 Changing the Detail Pane
    58.6 Modifying the WebsiteDetailFragment Class
    58.7 Modifying the WebsiteListFragment Class
    58.8 Adding Manifest Permissions
    58.9 Running the Application
    58.10 Summary
59. An Overview of Android Intents
    59.1 An Overview of Intents
    59.2 Explicit Intents
    59.3 Returning Data from an Activity
    59.4 Implicit Intents
    59.5 Using Intent Filters
    59.6 Checking Intent Availability
    59.7 Summary
60. Android Explicit Intents – A Worked Example
    60.1 Creating the Explicit Intent Example Application
    60.2 Designing the User Interface Layout for MainActivity
    60.3 Creating the Second Activity Class
    60.4 Designing the User Interface Layout for SecondActivity
    60.5 Reviewing the Application Manifest File
    60.6 Creating the Intent
    60.7 Extracting Intent Data
    60.8 Launching SecondActivity as a Sub-Activity
    60.9 Returning Data from a Sub-Activity
    60.10 Testing the Application
    60.11 Summary
61. Android Implicit Intents – A Worked Example
    61.1 Creating the Android Studio Implicit Intent Example Project
    61.2 Designing the User Interface
    61.3 Creating the Implicit Intent
    61.4 Adding a Second Matching Activity
    61.5 Adding the Web View to the UI
    61.6 Obtaining the Intent URL
    61.7 Modifying the MyWebView Project Manifest File
    61.8 Installing the MyWebView Package on a Device
    61.9 Testing the Application
    61.10 Summary
62. Android Broadcast Intents and Broadcast Receivers
    62.1 An Overview of Broadcast Intents
    62.2 An Overview of Broadcast Receivers
    62.3 Obtaining Results from a Broadcast
    62.4 Sticky Broadcast Intents
    62.5 The Broadcast Intent Example
    62.6 Creating the Example Application
    62.7 Creating and Sending the Broadcast Intent
    62.8 Creating the Broadcast Receiver
    62.9 Registering the Broadcast Receiver
    62.10 Testing the Broadcast Example
    62.11 Listening for System Broadcasts
    62.12 Summary
63. An Introduction to Kotlin Coroutines
    63.1 What are Coroutines?
    63.2 Threads vs Coroutines
    63.3 Coroutine Scope
    63.4 Suspend Functions
    63.5 Coroutine Dispatchers
    63.6 Coroutine Builders
    63.7 Jobs
    63.8 Coroutines – Suspending and Resuming
    63.9 Returning Results from a Coroutine
    63.10 Using withContext
    63.11 Coroutine Channel Communication
    63.12 Summary
64. An Android Kotlin Coroutines Tutorial
    64.1 Creating the Coroutine Example Application
    64.2 Adding Coroutine Support to the Project
    64.3 Designing the User Interface
    64.4 Implementing the SeekBar
    64.5 Adding the Suspend Function
    64.6 Implementing the launchCoroutines Method
    64.7 Testing the App
    64.8 Summary
65. An Overview of Android Services
    65.1 Started Services
    65.2 Intent Service
    65.3 Bound Service
    65.4 The Anatomy of a Service
    65.5 Controlling Destroyed Service Restart Options
    65.6 Declaring a Service in the Manifest File
    65.7 Starting a Service Running on System Startup
    65.8 Summary
66. Implementing an Android Started Service – A Worked Example
    66.1 Creating the Example Project
    66.2 Designing the User Interface
    66.3 Creating the Service Class
    66.4 Adding the Service to the Manifest File
    66.5 Starting the Service
    66.6 Testing the IntentService Example
    66.7 Using the Service Class
    66.8 Creating the New Service
    66.9 Launching the Service
    66.10 Running the Application
    66.11 Using a Coroutine for the Service Task
    66.12 Summary
67. Android Local Bound Services – A Worked Example
    67.1 Understanding Bound Services
    67.2 Bound Service Interaction Options
    67.3 A Local Bound Service Example
    67.4 Adding a Bound Service to the Project
    67.5 Implementing the Binder
    67.6 Binding the Client to the Service
    67.7 Completing the Example
    67.8 Testing the Application
    67.9 Summary
68. Android Remote Bound Services – A Worked Example
    68.1 Client to Remote Service Communication
    68.2 Creating the Example Application
    68.3 Designing the User Interface
    68.4 Implementing the Remote Bound Service
    68.5 Configuring a Remote Service in the Manifest File
    68.6 Launching and Binding to the Remote Service
    68.7 Sending a Message to the Remote Service
    68.8 Summary
69. An Android Notifications Tutorial
    69.1 An Overview of Notifications
    69.2 Creating the NotifyDemo Project
    69.3 Designing the User Interface
    69.4 Creating the Second Activity
    69.5 Creating a Notification Channel
    69.6 Creating and Issuing a Notification
    69.7 Launching an Activity from a Notification
    69.8 Adding Actions to a Notification
    69.9 Bundled Notifications
    69.10 Summary
70. An Android Direct Reply Notification Tutorial
    70.1 Creating the DirectReply Project
    70.2 Designing the User Interface
    70.3 Creating the Notification Channel
    70.4 Building the RemoteInput Object
    70.5 Creating the PendingIntent
    70.6 Creating the Reply Action
    70.7 Receiving Direct Reply Input
    70.8 Updating the Notification
    70.9 Summary
71. Foldable Devices and Multi-Window Support
    71.1 Foldables and Multi-Window Support
    71.2 Using a Foldable Emulator
    71.3 Entering Multi-Window Mode
    71.4 Enabling and using Freeform Support
    71.5 Checking for Freeform Support
    71.6 Enabling Multi-Window Support in an App
    71.7 Specifying Multi-Window Attributes
    71.8 Detecting Multi-Window Mode in an Activity
    71.9 Receiving Multi-Window Notifications
    71.10 Launching an Activity in Multi-Window Mode
    71.11 Configuring Freeform Activity Size and Position
    71.12 Summary
72. An Overview of Android SQLite Databases
    72.1 Understanding Database Tables
    72.2 Introducing Database Schema
    72.3 Columns and Data Types
    72.4 Database Rows
    72.5 Introducing Primary Keys
    72.6 What is SQLite?
    72.7 Structured Query Language (SQL)
    72.8 Trying SQLite on an Android Virtual Device (AVD)
    72.9 The Android Room Persistence Library
    72.10 Summary
73. The Android Room Persistence Library
    73.1 Revisiting Modern App Architecture
    73.2 Key Elements of Room Database Persistence
    73.2.1 Repository
    73.2.2 Room Database
    73.2.3 Data Access Object (DAO)
    73.2.4 Entities
    73.2.5 SQLite Database
    73.3 Understanding Entities
    73.4 Data Access Objects
    73.5 The Room Database
    73.6 The Repository
    73.7 In-Memory Databases
    73.8 Database Inspector
    73.9 Summary
74. An Android TableLayout and TableRow Tutorial
    74.1 The TableLayout and TableRow Layout Views
    74.2 Creating the Room Database Project
    74.3 Converting to a LinearLayout
    74.4 Adding the TableLayout to the User Interface
    74.5 Configuring the TableRows
    74.6 Adding the Button Bar to the Layout
    74.7 Adding the RecyclerView
    74.8 Adjusting the Layout Margins
    74.9 Summary
75. An Android Room Database and Repository Tutorial
    75.1 About the RoomDemo Project
    75.2 Modifying the Build Configuration
    75.3 Building the Entity
    75.4 Creating the Data Access Object
    75.5 Adding the Room Database
    75.6 Adding the Repository
    75.7 Modifying the ViewModel
    75.8 Creating the Product Item Layout
    75.9 Adding the RecyclerView Adapter
    75.10 Preparing the Main Fragment
    75.11 Adding the Button Listeners
    75.12 Adding LiveData Observers
    75.13 Initializing the RecyclerView
    75.14 Testing the RoomDemo App
    75.15 Using the Database Inspector
    75.16 Summary
76. Accessing Cloud Storage using the Android Storage Access Framework
    76.1 The Storage Access Framework
    76.2 Working with the Storage Access Framework
    76.3 Filtering Picker File Listings
    76.4 Handling Intent Results
    76.5 Reading the Content of a File
    76.6 Writing Content to a File
    76.7 Deleting a File
    76.8 Gaining Persistent Access to a File
    76.9 Summary
77. An Android Storage Access Framework Example
    77.1 About the Storage Access Framework Example
    77.2 Creating the Storage Access Framework Example
    77.3 Designing the User Interface
    77.4 Adding the Activity Launchers
    77.5 Creating a New Storage File
    77.6 Saving to a Storage File
    77.7 Opening and Reading a Storage File
    77.8 Testing the Storage Access Application
    77.9 Summary
78. Video Playback on Android using the VideoView and MediaController Classes
    78.1 Introducing the Android VideoView Class
    78.2 Introducing the Android MediaController Class
    78.3 Creating the Video Playback Example
    78.4 Designing the VideoPlayer Layout
    78.5 Downloading the Video File
    78.6 Configuring the VideoView
    78.7 Adding the MediaController to the Video View
    78.8 Setting up the onPreparedListener
    78.9 Summary
79. Android Picture-in-Picture Mode
    79.1 Picture-in-Picture Features
    79.2 Enabling Picture-in-Picture Mode
    79.3 Configuring Picture-in-Picture Parameters
    79.4 Entering Picture-in-Picture Mode
    79.5 Detecting Picture-in-Picture Mode Changes
    79.6 Adding Picture-in-Picture Actions
    79.7 Summary
80. An Android Picture-in-Picture Tutorial
    80.1 Adding Picture-in-Picture Support to the Manifest
    80.2 Adding a Picture-in-Picture Button
    80.3 Entering Picture-in-Picture Mode
    80.4 Detecting Picture-in-Picture Mode Changes
    80.5 Adding a Broadcast Receiver
    80.6 Adding the PiP Action
    80.7 Testing the Picture-in-Picture Action
    80.8 Summary
81. Making Runtime Permission Requests in Android
    81.1 Understanding Normal and Dangerous Permissions
    81.2 Creating the Permissions Example Project
    81.3 Checking for a Permission
    81.4 Requesting Permission at Runtime
    81.5 Providing a Rationale for the Permission Request
    81.6 Testing the Permissions App
    81.7 Summary
82. Android Audio Recording and Playback using MediaPlayer and MediaRecorder
    82.1 Playing Audio
    82.2 Recording Audio and Video using the MediaRecorder Class
    82.3 About the Example Project
    82.4 Creating the AudioApp Project
    82.5 Designing the User Interface
    82.6 Checking for Microphone Availability
    82.7 Initializing the Activity
    82.8 Implementing the recordAudio() Method
    82.9 Implementing the stopAudio() Method
    82.10 Implementing the playAudio() method
    82.11 Configuring and Requesting Permissions
    82.12 Testing the Application
    82.13 Summary
83. Printing with the Android Printing Framework
    83.1 The Android Printing Architecture
    83.2 The Print Service Plugins
    83.3 Google Cloud Print
    83.4 Printing to Google Drive
    83.5 Save as PDF
    83.6 Printing from Android Devices
    83.7 Options for Building Print Support into Android Apps
    83.7.1 Image Printing
    83.7.2 Creating and Printing HTML Content
    83.7.3 Printing a Web Page
    83.7.4 Printing a Custom Document
    83.8 Summary
84. An Android HTML and Web Content Printing Example
    84.1 Creating the HTML Printing Example Application
    84.2 Printing Dynamic HTML Content
    84.3 Creating the Web Page Printing Example
    84.4 Removing the Floating Action Button
    84.5 Removing Navigation Features
    84.6 Designing the User Interface Layout
    84.7 Accessing the WebView from the Main Activity
    84.8 Loading the Web Page into the WebView
    84.9 Adding the Print Menu Option
    84.10 Summary
85. A Guide to Android Custom Document Printing
    85.1 An Overview of Android Custom Document Printing
    85.1.1 Custom Print Adapters
    85.2 Preparing the Custom Document Printing Project
    85.3 Creating the Custom Print Adapter
    85.4 Implementing the onLayout() Callback Method
    85.5 Implementing the onWrite() Callback Method
    85.6 Checking a Page is in Range
    85.7 Drawing the Content on the Page Canvas
    85.8 Starting the Print Job
    85.9 Testing the Application
    85.10 Summary
86. An Introduction to Android App Links
    86.1 An Overview of Android App Links
    86.2 App Link Intent Filters
    86.3 Handling App Link Intents
    86.4 Associating the App with a Website
    86.5 Summary
87. An Android Studio App Links Tutorial
    87.1 About the Example App
    87.2 The Database Schema
    87.3 Loading and Running the Project
    87.4 Adding the URL Mapping
    87.5 Adding the Intent Filter
    87.6 Adding Intent Handling Code
    87.7 Testing the App Link
    87.8 Associating an App Link with a Web Site
    87.9 Summary
88. An Android Biometric Authentication Tutorial
    88.1 An Overview of Biometric Authentication
    88.2 Creating the Biometric Authentication Project
    88.3 Configuring Device Fingerprint Authentication
    88.4 Adding the Biometric Permission to the Manifest File
    88.5 Designing the User Interface
    88.6 Adding a Toast Convenience Method
    88.7 Checking the Security Settings
    88.8 Configuring the Authentication Callbacks
    88.9 Adding the CancellationSignal
    88.10 Starting the Biometric Prompt
    88.11 Testing the Project
    88.12 Summary
89. Creating, Testing and Uploading an Android App Bundle
    89.1 The Release Preparation Process
    89.2 Android App Bundles
    89.3 Register for a Google Play Developer Console Account
    89.4 Configuring the App in the Console
    89.5 Enabling Google Play App Signing
    89.6 Creating a Keystore File
    89.7 Creating the Android App Bundle
    89.8 Generating Test APK Files
    89.9 Uploading the App Bundle to the Google Play Developer Console
    89.10 Exploring the App Bundle
    89.11 Managing Testers
    89.12 Rolling the App Out for Testing
    89.13 Uploading New App Bundle Revisions
    89.14 Analyzing the App Bundle File
    89.15 Summary
90. An Overview of Android Dynamic Feature Modules
    90.1 An Overview of Dynamic Feature Modules
    90.2 Dynamic Feature Module Architecture
    90.3 Creating a Dynamic Feature Module
    90.4 Converting an Existing Module for Dynamic Delivery
    90.5 Working with Dynamic Feature Modules
    90.6 Handling Large Dynamic Feature Modules
    90.7 Summary
91. An Android Studio Dynamic Feature Tutorial
    91.1 Creating the DynamicFeature Project
    91.2 Adding Dynamic Feature Support to the Project
    91.3 Designing the Base Activity User Interface
    91.4 Adding the Dynamic Feature Module
    91.5 Reviewing the Dynamic Feature Module
    91.6 Adding the Dynamic Feature Activity
    91.7 Implementing the launchIntent() Method
    91.8 Uploading the App Bundle for Testing
    91.9 Implementing the installFeature() Method
    91.10 Adding the Update Listener
    91.11 Using Deferred Installation
    91.12 Removing a Dynamic Module
    91.13 Summary
92. An Overview of Gradle in Android Studio
    92.1 An Overview of Gradle
    92.2 Gradle and Android Studio
    92.2.1 Sensible Defaults
    92.2.2 Dependencies
    92.2.3 Build Variants
    92.2.4 Manifest Entries
    92.2.5 APK Signing
    92.2.6 ProGuard Support
    92.3 The Top-level Gradle Build File
    92.4 Module Level Gradle Build Files
    92.5 Configuring Signing Settings in the Build File
    92.6 Running Gradle Tasks from the Command-line
    92.7 Summary
    Index
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✦ Subjects

Android; Android Studio; Arctic Fox; Kotlin;