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  • Android Studio 4.2 Development Essentials - Java Edition
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Android Studio 4.2 Development Essentials - Java Edition

Android Studio 4.2 Development Essentials - Java Edition

By : Neil Smyth
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Android Studio 4.2 Development Essentials - Java Edition

Android Studio 4.2 Development Essentials - Java Edition

By: Neil Smyth

Overview of this book

Android Studio is an Integrated Development Environment based on the JetBrains IntelliJ IDEA. It provides developers with a unique platform to design and develop Android apps using various developer tools. The new Android Studio 4.2 has an upgraded IntelliJ platform and a variety of new features designed to improve the productivity of Android app developers. Fully updated for Android Studio 4.2, the objective of this book is to help you master the skills necessary to develop Android applications using Java as the programming language. This book begins by outlining the steps necessary to set up an Android development and testing environment and introducing programming in Java, describing data types, flow control, functions, lambdas, and object-oriented programming. It includes an overview of Android Studio, covering areas such as tool windows, the code editor, and the Layout Editor tool. An introduction to Android architecture is followed by an in-depth explanation of the design of Android applications and user interfaces using the Android Studio environment. Early chapters detail Android Architecture components like view models, lifecycle management, Room database access, the Database Inspector, app navigation, live data, and data binding. Advanced topics such as intents are also covered, as are touch screen handling, gesture recognition, and the recording and playback of audio. You will also explore printing, transitions, cloud-based file storage, and foldable device support. Detailed descriptions of the concepts of material design are provided, including the use of floating action buttons, Snackbars, tabbed interfaces, card views, navigation drawers, and collapsing toolbars. Some key features of Android Studio 4.2 and Android discussed in-depth include the Layout Editor, the ConstraintLayout and ConstraintSet classes, MotionLayout Editor, view binding, constraint chains, barriers, and direct reply notifications. Later chapters cover advanced features of Android Studio such as App Links, Dynamic Delivery, the Android Studio Profiler, Gradle build configuration, and submitting apps to the Google Play Developer Console.
Table of Contents (87 chapters)
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1
1. Introduction
1. Introduction
1.1 Downloading the Code Samples
1.2 Feedback
1.3 Errata
Free Chapter
2
2. Setting up an Android Studio Development Environment
2. Setting up an Android Studio Development Environment
2.1 System Requirements
2.2 Downloading the Android Studio Package
2.3 Installing Android Studio
2.4 The Android Studio Setup Wizard
2.5 Installing Additional Android SDK Packages
2.6 Making the Android SDK Tools Command-line Accessible
2.7 Android Studio Memory Management
2.8 Updating Android Studio and the SDK
2.9 Summary
3
3. Creating an Example Android App in Android Studio
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 Interaction
3.9 Summary
4
4. Creating an Android Virtual Device (AVD) in Android Studio
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
5. Using and Configuring the Android Studio AVD Emulator
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
5.6 Working with Snapshots
5.7 Configuring Fingerprint Emulation
5.8 The Emulator in Tool Window Mode
5.9 Summary
6
6. A Tour of the Android Studio User Interface
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
7. Testing Android Studio Apps on a Physical Android Device
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
7.3 Testing the adb Connection
7.4 Summary
8
8. The Basics of the Android Studio Code Editor
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
9. An Overview of the Android Architecture
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
9.5 Application Framework
9.6 Applications
9.7 Summary
10
10. The Anatomy of an Android Application
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
11. An Overview of Android View Binding
11. An Overview of Android View Binding
11.1 Find View by Id
11.2 View Binding
11.3 Converting the AndroidSample project
11.4 Enabling View Binding
11.5 Using View Binding
11.6 Choosing an Option
11.7 View Binding in the Book Examples
11.8 Migrating a Project to View Binding
11.9 Summary
12
12. Understanding Android Application and Activity Lifecycles
12. Understanding Android Application and Activity Lifecycles
12.1 Android Applications and Resource Management
12.2 Android Process States
12.3 Inter-Process Dependencies
12.4 The Activity Lifecycle
12.5 The Activity Stack
12.6 Activity States
12.7 Configuration Changes
12.8 Handling State Change
12.9 Summary
13
13. Handling Android Activity State Changes
13. Handling Android Activity State Changes
13.1 New vs. Old Lifecycle Techniques
13.2 The Activity and Fragment Classes
13.3 Dynamic State vs. Persistent State
13.4 The Android Lifecycle Methods
13.5 Lifetimes
13.6 Foldable Devices and Multi-Resume
13.7 Disabling Configuration Change Restarts
13.8 Lifecycle Method Limitations
13.9 Summary
14
14. Android Activity State Changes by Example
14. Android Activity State Changes by Example
14.1 Creating the State Change Example Project
14.2 Designing the User Interface
14.3 Overriding the Activity Lifecycle Methods
14.4 Filtering the Logcat Panel
14.5 Running the Application
14.6 Experimenting with the Activity
14.7 Summary
15
15. Saving and Restoring the State of an Android Activity
15. Saving and Restoring the State of an Android Activity
15.1 Saving Dynamic State
15.2 Default Saving of User Interface State
15.3 The Bundle Class
15.4 Saving the State
15.5 Restoring the State
15.6 Testing the Application
15.7 Summary
16
16. Understanding Android Views, View Groups and Layouts
16. Understanding Android Views, View Groups and Layouts
16.1 Designing for Different Android Devices
16.2 Views and View Groups
16.3 Android Layout Managers
16.4 The View Hierarchy
16.5 Creating User Interfaces
16.6 Summary
17
17. A Guide to the Android Studio Layout Editor Tool
17. A Guide to the Android Studio Layout Editor Tool
17.1 Basic vs. Empty Activity Templates
17.2 The Android Studio Layout Editor
17.3 Design Mode
17.4 The Palette
17.5 Design Mode and Layout Views
17.6 Night Mode
17.7 Code Mode
17.8 Split Mode
17.9 Setting Attributes
17.10 Transforms
17.11 Tools Visibility Toggles
17.12 Converting Views
17.13 Displaying Sample Data
17.14 Creating a Custom Device Definition
17.15 Changing the Current Device
17.16 Layout Validation (Multi Preview)
17.17 Summary
18
18. A Guide to the Android ConstraintLayout
18. A Guide to the Android ConstraintLayout
18.1 How ConstraintLayout Works
18.2 Baseline Alignment
18.3 Configuring Widget Dimensions
18.4 Guideline Helper
18.5 Group Helper
18.6 Barrier Helper
18.7 Flow Helper
18.8 Ratios
18.9 ConstraintLayout Advantages
18.10 ConstraintLayout Availability
18.11 Summary
19
19. A Guide to Using ConstraintLayout in Android Studio
19. A Guide to Using ConstraintLayout in Android Studio
19.1 Design and Layout Views
19.2 Autoconnect Mode
19.3 Inference Mode
19.4 Manipulating Constraints Manually
19.5 Adding Constraints in the Inspector
19.6 Viewing Constraints in the Attributes Window
19.7 Deleting Constraints
19.8 Adjusting Constraint Bias
19.9 Understanding ConstraintLayout Margins
19.10 The Importance of Opposing Constraints and Bias
19.11 Configuring Widget Dimensions
19.12 Design Time Tools Positioning
19.13 Adding Guidelines
19.14 Adding Barriers
19.15 Adding a Group
19.16 Working with the Flow Helper
19.17 Widget Group Alignment and Distribution
19.18 Converting other Layouts to ConstraintLayout
19.19 Summary
20
20. Working with ConstraintLayout Chains and Ratios in Android Studio
20. Working with ConstraintLayout Chains and Ratios in Android Studio
20.1 Creating a Chain
20.2 Changing the Chain Style
20.3 Spread Inside Chain Style
20.4 Packed Chain Style
20.5 Packed Chain Style with Bias
20.6 Weighted Chain
20.7 Working with Ratios
20.8 Summary
21
21. An Android Studio Layout Editor ConstraintLayout Tutorial
21. An Android Studio Layout Editor ConstraintLayout Tutorial
21.1 An Android Studio Layout Editor Tool Example
21.2 Creating a New Activity
21.3 Preparing the Layout Editor Environment
21.4 Adding the Widgets to the User Interface
21.5 Adding the Constraints
21.6 Testing the Layout
21.7 Using the Layout Inspector
21.8 Summary
22
22. Manual XML Layout Design in Android Studio
22. Manual XML Layout Design in Android Studio
22.1 Manually Creating an XML Layout
22.2 Manual XML vs. Visual Layout Design
22.3 Summary
23
23. Managing Constraints using Constraint Sets
23. Managing Constraints using Constraint Sets
23.1 Java Code vs. XML Layout Files
23.2 Creating Views
23.3 View Attributes
23.4 Constraint Sets
23.5 Summary
24
24. An Android ConstraintSet Tutorial
24. An Android ConstraintSet Tutorial
24.1 Creating the Example Project in Android Studio
24.2 Adding Views to an Activity
24.3 Setting View Attributes
24.4 Creating View IDs
24.5 Configuring the Constraint Set
24.6 Adding the EditText View
24.7 Converting Density Independent Pixels (dp) to Pixels (px)
24.8 Summary
25
25. A Guide to using Apply Changes in Android Studio
25. A Guide to using Apply Changes in Android Studio
25.1 Introducing Apply Changes
25.2 Understanding Apply Changes Options
25.3 Using Apply Changes
25.4 Configuring Apply Changes Fallback Settings
25.5 An Apply Changes Tutorial
25.6 Using Apply Code Changes
25.7 Using Apply Changes and Restart Activity
25.8 Using Run App
25.9 Summary
26
26. An Overview and Example of Android Event Handling
26. An Overview and Example of Android Event Handling
26.1 Understanding Android Events
26.2 Using the android:onClick Resource
26.3 Event Listeners and Callback Methods
26.4 An Event Handling Example
26.5 Designing the User Interface
26.6 The Event Listener and Callback Method
26.7 Consuming Events
26.8 Summary
27
27. Android Touch and Multi-touch Event Handling
27. Android Touch and Multi-touch Event Handling
27.1 Intercepting Touch Events
27.2 The MotionEvent Object
27.3 Understanding Touch Actions
27.4 Handling Multiple Touches
27.5 An Example Multi-Touch Application
27.6 Designing the Activity User Interface
27.7 Implementing the Touch Event Listener
27.8 Running the Example Application
27.9 Summary
28
28. Detecting Common Gestures Using the Android Gesture Detector Class
28. Detecting Common Gestures Using the Android Gesture Detector Class
28.1 Implementing Common Gesture Detection
28.2 Creating an Example Gesture Detection Project
28.3 Implementing the Listener Class
28.4 Creating the GestureDetectorCompat Instance
28.5 Implementing the onTouchEvent() Method
28.6 Testing the Application
28.7 Summary
29
29. Implementing Custom Gesture and Pinch Recognition on Android
29. Implementing Custom Gesture and Pinch Recognition on Android
29.1 The Android Gesture Builder Application
29.2 The GestureOverlayView Class
29.3 Detecting Gestures
29.4 Identifying Specific Gestures
29.5 Installing and Running the Gesture Builder Application
29.6 Creating a Gestures File
29.7 Creating the Example Project
29.8 Extracting the Gestures File from the SD Card
29.9 Adding the Gestures File to the Project
29.10 Designing the User Interface
29.11 Loading the Gestures File
29.12 Registering the Event Listener
29.13 Implementing the onGesturePerformed Method
29.14 Testing the Application
29.15 Configuring the GestureOverlayView
29.16 Intercepting Gestures
29.17 Detecting Pinch Gestures
29.18 A Pinch Gesture Example Project
29.19 Summary
30
30. An Introduction to Android Fragments
30. An Introduction to Android Fragments
30.1 What is a Fragment?
30.2 Creating a Fragment
30.3 Adding a Fragment to an Activity using the Layout XML File
30.4 Adding and Managing Fragments in Code
30.5 Handling Fragment Events
30.6 Implementing Fragment Communication
30.7 Summary
31
31. Using Fragments in Android Studio - An Example
31. Using Fragments in Android Studio - An Example
31.1 About the Example Fragment Application
31.2 Creating the Example Project
31.3 Creating the First Fragment Layout
31.4 Migrating a Fragment to View Binding
31.5 Adding the Second Fragment
31.6 Adding the Fragments to the Activity
31.7 Making the Toolbar Fragment Talk to the Activity
31.8 Making the Activity Talk to the Text Fragment
31.9 Testing the Application
31.10 Summary
32
32. Modern Android App Architecture with Jetpack
32. Modern Android App Architecture with Jetpack
32.1 What is Android Jetpack?
32.2 The “Old” Architecture
32.3 Modern Android Architecture
32.4 The ViewModel Component
32.5 The LiveData Component
32.6 ViewModel Saved State
32.7 LiveData and Data Binding
32.8 Android Lifecycles
32.9 Repository Modules
32.10 Summary
33
33. An Android Jetpack ViewModel Tutorial
33. An Android Jetpack ViewModel Tutorial
33.1 About the Project
33.2 Creating the ViewModel Example Project
33.3 Reviewing the Project
33.4 Designing the Fragment Layout
33.5 Implementing the View Model
33.6 Associating the Fragment with the View Model
33.7 Modifying the Fragment
33.8 Accessing the ViewModel Data
33.9 Testing the Project
33.10 Summary
34
34. An Android Jetpack LiveData Tutorial
34. An Android Jetpack LiveData Tutorial
34.1 LiveData - A Recap
34.2 Adding LiveData to the ViewModel
34.3 Implementing the Observer
34.4 Summary
35
35. An Overview of Android Jetpack Data Binding
35. An Overview of Android Jetpack Data Binding
35.1 An Overview of Data Binding
35.2 The Key Components of Data Binding
35.3 Summary
36
36. An Android Jetpack Data Binding Tutorial
36. An Android Jetpack Data Binding Tutorial
36.1 Removing the Redundant Code
36.2 Enabling Data Binding
36.3 Adding the Layout Element
36.4 Adding the Data Element to Layout File
36.5 Working with the Binding Class
36.6 Assigning the ViewModel Instance to the Data Binding Variable
36.7 Adding Binding Expressions
36.8 Adding the Conversion Method
36.9 Adding a Listener Binding
36.10 Testing the App
36.11 Summary
37
37. An Android ViewModel Saved State Tutorial
37. An Android ViewModel Saved State Tutorial
37.1 Understanding ViewModel State Saving
37.2 Implementing ViewModel State Saving
37.3 Saving and Restoring State
37.4 Adding Saved State Support to the ViewModelDemo Project
37.5 Summary
38
38. Working with Android Lifecycle-Aware Components
38. Working with Android Lifecycle-Aware Components
38.1 Lifecycle Awareness
38.2 Lifecycle Owners
38.3 Lifecycle Observers
38.4 Lifecycle States and Events
38.5 Summary
39
39. An Android Jetpack Lifecycle Awareness Tutorial
39. An Android Jetpack Lifecycle Awareness Tutorial
39.1 Creating the Example Lifecycle Project
39.2 Creating a Lifecycle Observer
39.3 Adding the Observer
39.4 Testing the Observer
39.5 Creating a Lifecycle Owner
39.6 Testing the Custom Lifecycle Owner
39.7 Summary
40
40. An Overview of the Navigation Architecture Component
40. An Overview of the Navigation Architecture Component
40.1 Understanding Navigation
40.2 Declaring a Navigation Host
40.3 The Navigation Graph
40.4 Accessing the Navigation Controller
40.5 Triggering a Navigation Action
40.6 Passing Arguments
40.7 Summary
41
41. An Android Jetpack Navigation Component Tutorial
41. An Android Jetpack Navigation Component Tutorial
41.1 Creating the NavigationDemo Project
41.2 Adding Navigation to the Build Configuration
41.3 Creating the Navigation Graph Resource File
41.4 Declaring a Navigation Host
41.5 Adding Navigation Destinations
41.6 Designing the Destination Fragment Layouts
41.7 Adding an Action to the Navigation Graph
41.8 Implement the OnFragmentInteractionListener
41.9 Adding View Binding Support to the Destination Fragments
41.10 Triggering the Action
41.11 Passing Data Using Safeargs
41.12 Summary
42
42. An Introduction to MotionLayout
42. An Introduction to MotionLayout
42.1 An Overview of MotionLayout
42.2 MotionLayout
42.3 MotionScene
42.4 Configuring ConstraintSets
42.5 Custom Attributes
42.6 Triggering an Animation
42.7 Arc Motion
42.8 Keyframes
42.9 Time Linearity
42.10 KeyTrigger
42.11 Cycle and Time Cycle Keyframes
42.12 Starting an Animation from Code
43
43. An Android MotionLayout Editor Tutorial
43. An Android MotionLayout Editor Tutorial
43.1 Creating the MotionLayoutDemo Project
43.2 ConstraintLayout to MotionLayout Conversion
43.3 Configuring Start and End Constraints
43.4 Previewing the MotionLayout Animation
43.5 Adding an OnClick Gesture
43.6 Adding an Attribute Keyframe to the Transition
43.7 Adding a CustomAttribute to a Transition
43.8 Adding Position Keyframes
43.9 Summary
44
44. A MotionLayout KeyCycle Tutorial
44. A MotionLayout KeyCycle Tutorial
44.1 An Overview of Cycle Keyframes
44.2 Using the Cycle Editor
44.3 Creating the KeyCycleDemo Project
44.4 Configuring the Start and End Constraints
44.5 Creating the Cycles
44.6 Previewing the Animation
44.7 Adding the KeyFrameSet to the MotionScene
44.8 Summary
45
45. Working with the Floating Action Button and Snackbar
45. Working with the Floating Action Button and Snackbar
45.1 The Material Design
45.2 The Design Library
45.3 The Floating Action Button (FAB)
45.4 The Snackbar
45.5 Creating the Example Project
45.6 Reviewing the Project
45.7 Removing Navigation Features
45.8 Changing the Floating Action Button
45.9 Adding an Action to the Snackbar
45.10 Summary
46
46. Creating a Tabbed Interface using the TabLayout Component
46. Creating a Tabbed Interface using the TabLayout Component
46.1 An Introduction to the ViewPager2 Class
46.2 An Overview of the TabLayout Component
46.3 Creating the TabLayoutDemo Project
46.4 Creating the First Fragment
46.5 Duplicating the Fragments
46.6 Adding the TabLayout and ViewPager2
46.7 Creating the Fragment State Adapter
46.8 Performing the Initialization Tasks
46.9 Testing the Application
46.10 Customizing the TabLayout
46.11 Summary
47
47. Working with the RecyclerView and CardView Widgets
47. Working with the RecyclerView and CardView Widgets
47.1 An Overview of the RecyclerView
47.2 An Overview of the CardView
47.3 Summary
48
48. An Android RecyclerView and CardView Tutorial
48. An Android RecyclerView and CardView Tutorial
48.1 Creating the CardDemo Project
48.2 Modifying the Basic Activity Project
48.3 Designing the CardView Layout
48.4 Adding the RecyclerView
48.5 Adding the Image Files
48.6 Creating the RecyclerView Adapter
48.7 Initializing the RecyclerView Component
48.8 Testing the Application
48.9 Responding to Card Selections
48.10 Summary
49
49. A Layout Editor Sample Data Tutorial
49. A Layout Editor Sample Data Tutorial
49.1 Adding Sample Data to a Project
49.2 Using Custom Sample Data
49.3 Summary
50
50. Working with the AppBar and Collapsing Toolbar Layouts
50. Working with the AppBar and Collapsing Toolbar Layouts
50.1 The Anatomy of an AppBar
50.2 The Example Project
50.3 Coordinating the RecyclerView and Toolbar
50.4 Introducing the Collapsing Toolbar Layout
50.5 Changing the Title and Scrim Color
50.6 Summary
51
51. An Android Studio Primary/Detail Flow Tutorial
51. An Android Studio Primary/Detail Flow Tutorial
51.1 The Primary/Detail Flow
51.2 Creating a Primary/Detail Flow Activity
51.3 Modifying the Primary/Detail Flow Template
51.4 Changing the Content Model
51.5 Changing the Detail Pane
51.6 Modifying the WebsiteDetailFragment Class
51.7 Modifying the WebsiteListFragment Class
51.8 Adding Manifest Permissions
51.9 Running the Application
51.10 Summary
52
52. An Overview of Android Intents
52. An Overview of Android Intents
52.1 An Overview of Intents
52.2 Explicit Intents
52.3 Returning Data from an Activity
52.4 Implicit Intents
52.5 Using Intent Filters
52.6 Checking Intent Availability
52.7 Summary
53
53. Android Explicit Intents – A Worked Example
53. Android Explicit Intents – A Worked Example
53.1 Creating the Explicit Intent Example Application
53.2 Designing the User Interface Layout for MainActivity
53.3 Creating the Second Activity Class
53.4 Designing the User Interface Layout for SecondActivity
53.5 Reviewing the Application Manifest File
53.6 Creating the Intent
53.7 Extracting Intent Data
53.8 Launching SecondActivity as a Sub-Activity
53.9 Returning Data from a Sub-Activity
53.10 Testing the Application
53.11 Summary
54
54. Android Implicit Intents – A Worked Example
54. Android Implicit Intents – A Worked Example
54.1 Creating the Android Studio Implicit Intent Example Project
54.2 Designing the User Interface
54.3 Creating the Implicit Intent
54.4 Adding a Second Matching Activity
54.5 Adding the Web View to the UI
54.6 Obtaining the Intent URL
54.7 Modifying the MyWebView Project Manifest File
54.8 Installing the MyWebView Package on a Device
54.9 Testing the Application
54.10 Summary
55
55. Android Broadcast Intents and Broadcast Receivers
55. Android Broadcast Intents and Broadcast Receivers
55.1 An Overview of Broadcast Intents
55.2 An Overview of Broadcast Receivers
55.3 Obtaining Results from a Broadcast
55.4 Sticky Broadcast Intents
55.5 The Broadcast Intent Example
55.6 Creating the Example Application
55.7 Creating and Sending the Broadcast Intent
55.8 Creating the Broadcast Receiver
55.9 Registering the Broadcast Receiver
55.10 Testing the Broadcast Example
55.11 Listening for System Broadcasts
55.12 Summary
56
56. A Basic Overview of Java Threads, Handlers and Executors
56. A Basic Overview of Java Threads, Handlers and Executors
56.1 An Overview of Threads
56.2 The Application Main Thread
56.3 Thread Handlers
56.4 A Threading Example
56.5 Building the App
56.6 Creating a New Thread
56.7 Implementing a Thread Handler
56.8 Passing a Message to the Handler
56.9 Java Executor Concurrency
56.10 Working with Runnable Tasks
56.11 Shutting down an Executor Service
56.12 Working with Callable Tasks and Futures
56.13 Handling a Future Result
56.14 Scheduling Tasks
56.15 Summary
57
57. An Overview of Android Services
57. An Overview of Android Services
57.1 Started Services
57.2 Intent Service
57.3 Bound Service
57.4 The Anatomy of a Service
57.5 Controlling Destroyed Service Restart Options
57.6 Declaring a Service in the Manifest File
57.7 Starting a Service Running on System Startup
57.8 Summary
58
58. Implementing an Android Started Service – A Worked Example
58. Implementing an Android Started Service – A Worked Example
58.1 Creating the Example Project
58.2 Designing the User Interface
58.3 Creating the Service Class
58.4 Adding the Service to the Manifest File
58.5 Starting the Service
58.6 Testing the IntentService Example
58.7 Using the Service Class
58.8 Creating the New Service
58.9 Launching the Service
58.10 Running the Application
58.11 Adding Threading to the Service
58.12 Summary
59
59. Android Local Bound Services – A Worked Example
59. Android Local Bound Services – A Worked Example
59.1 Understanding Bound Services
59.2 Bound Service Interaction Options
59.3 A Local Bound Service Example
59.4 Adding a Bound Service to the Project
59.5 Implementing the Binder
59.6 Binding the Client to the Service
59.7 Completing the Example
59.8 Testing the Application
59.9 Summary
60
60. Android Remote Bound Services – A Worked Example
60. Android Remote Bound Services – A Worked Example
60.1 Client to Remote Service Communication
60.2 Creating the Example Application
60.3 Designing the User Interface
60.4 Implementing the Remote Bound Service
60.5 Configuring a Remote Service in the Manifest File
60.6 Launching and Binding to the Remote Service
60.7 Sending a Message to the Remote Service
60.8 Summary
61
61. An Android Notifications Tutorial
61. An Android Notifications Tutorial
61.1 An Overview of Notifications
61.2 Creating the NotifyDemo Project
61.3 Designing the User Interface
61.4 Creating the Second Activity
61.5 Creating a Notification Channel
61.6 Creating and Issuing a Notification
61.7 Launching an Activity from a Notification
61.8 Adding Actions to a Notification
61.9 Bundled Notifications
61.10 Summary
62
62. An Android Direct Reply Notification Tutorial
62. An Android Direct Reply Notification Tutorial
62.1 Creating the DirectReply Project
62.2 Designing the User Interface
62.3 Creating the Notification Channel
62.4 Building the RemoteInput Object
62.5 Creating the PendingIntent
62.6 Creating the Reply Action
62.7 Receiving Direct Reply Input
62.8 Updating the Notification
62.9 Summary
63
63. Foldable Devices and Multi-Window Support
63. Foldable Devices and Multi-Window Support
63.1 Foldables and Multi-Window Support
63.2 Using a Foldable Emulator
63.3 Entering Multi-Window Mode
63.4 Enabling and using Freeform Support
63.5 Checking for Freeform Support
63.6 Enabling Multi-Window Support in an App
63.7 Specifying Multi-Window Attributes
63.8 Detecting Multi-Window Mode in an Activity
63.9 Receiving Multi-Window Notifications
63.10 Launching an Activity in Multi-Window Mode
63.11 Configuring Freeform Activity Size and Position
63.12 Summary
64
64. An Overview of Android SQLite Databases
64. An Overview of Android SQLite Databases
64.1 Understanding Database Tables
64.2 Introducing Database Schema
64.3 Columns and Data Types
64.4 Database Rows
64.5 Introducing Primary Keys
64.6 What is SQLite?
64.7 Structured Query Language (SQL)
64.8 Trying SQLite on an Android Virtual Device (AVD)
64.9 The Android Room Persistence Library
64.10 Summary
65
65. The Android Room Persistence Library
65. The Android Room Persistence Library
65.1 Revisiting Modern App Architecture
65.2 Key Elements of Room Database Persistence
65.3 Understanding Entities
65.4 Data Access Objects
65.5 The Room Database
65.6 The Repository
65.7 In-Memory Databases
65.8 Database Inspector
65.9 Summary
66
66. An Android TableLayout and TableRow Tutorial
66. An Android TableLayout and TableRow Tutorial
66.1 The TableLayout and TableRow Layout Views
66.2 Creating the Room Database Project
66.3 Converting to a LinearLayout
66.4 Adding the TableLayout to the User Interface
66.5 Configuring the TableRows
66.6 Adding the Button Bar to the Layout
66.7 Adding the RecyclerView
66.8 Adjusting the Layout Margins
66.9 Summary
67
67. An Android Room Database and Repository Tutorial
67. An Android Room Database and Repository Tutorial
67.1 About the RoomDemo Project
67.2 Modifying the Build Configuration
67.3 Building the Entity
67.4 Creating the Data Access Object
67.5 Adding the Room Database
67.6 Adding the Repository
67.7 Modifying the ViewModel
67.8 Creating the Product Item Layout
67.9 Adding the RecyclerView Adapter
67.10 Preparing the Main Fragment
67.11 Adding the Button Listeners
67.12 Adding LiveData Observers
67.13 Initializing the RecyclerView
67.14 Testing the RoomDemo App
67.15 Using the Database Inspector
67.16 Summary
68
68. Accessing Cloud Storage using the Android Storage Access Framework
68. Accessing Cloud Storage using the Android Storage Access Framework
68.1 The Storage Access Framework
68.2 Working with the Storage Access Framework
68.3 Filtering Picker File Listings
68.4 Handling Intent Results
68.5 Reading the Content of a File
68.6 Writing Content to a File
68.7 Deleting a File
68.8 Gaining Persistent Access to a File
68.9 Summary
69
69. An Android Storage Access Framework Example
69. An Android Storage Access Framework Example
69.1 About the Storage Access Framework Example
69.2 Creating the Storage Access Framework Example
69.3 Designing the User Interface
69.4 Declaring Request Codes
69.5 Creating a New Storage File
69.6 The onActivityResult() Method
69.7 Saving to a Storage File
69.8 Opening and Reading a Storage File
69.9 Testing the Storage Access Application
69.10 Summary
70
70. Video Playback on Android using the VideoView and MediaController Classes
70. Video Playback on Android using the VideoView and MediaController Classes
70.1 Introducing the Android VideoView Class
70.2 Introducing the Android MediaController Class
70.3 Creating the Video Playback Example
70.4 Designing the VideoPlayer Layout
70.5 Downloading the Video File
70.6 Configuring the VideoView
70.7 Adding the MediaController to the Video View
70.8 Setting up the onPreparedListener
70.9 Summary
71
71. Android Picture-in-Picture Mode
71. Android Picture-in-Picture Mode
71.1 Picture-in-Picture Features
71.2 Enabling Picture-in-Picture Mode
71.3 Configuring Picture-in-Picture Parameters
71.4 Entering Picture-in-Picture Mode
71.5 Detecting Picture-in-Picture Mode Changes
71.6 Adding Picture-in-Picture Actions
71.7 Summary
72
72. An Android Picture-in-Picture Tutorial
72. An Android Picture-in-Picture Tutorial
72.1 Adding Picture-in-Picture Support to the Manifest
72.2 Adding a Picture-in-Picture Button
72.3 Entering Picture-in-Picture Mode
72.4 Detecting Picture-in-Picture Mode Changes
72.5 Adding a Broadcast Receiver
72.6 Adding the PiP Action
72.7 Testing the Picture-in-Picture Action
72.8 Summary
73
73. Making Runtime Permission Requests in Android
73. Making Runtime Permission Requests in Android
73.1 Understanding Normal and Dangerous Permissions
73.2 Creating the Permissions Example Project
73.3 Checking for a Permission
73.4 Requesting Permission at Runtime
73.5 Providing a Rationale for the Permission Request
73.6 Testing the Permissions App
73.7 Summary
74
74. Android Audio Recording and Playback using MediaPlayer and MediaRecorder
74. Android Audio Recording and Playback using MediaPlayer and MediaRecorder
74.1 Playing Audio
74.2 Recording Audio and Video using the MediaRecorder Class
74.3 About the Example Project
74.4 Creating the AudioApp Project
74.5 Designing the User Interface
74.6 Checking for Microphone Availability
74.7 Initializing the Activity
74.8 Implementing the recordAudio() Method
74.9 Implementing the stopAudio() Method
74.10 Implementing the playAudio() method
74.11 Configuring and Requesting Permissions
74.12 Testing the Application
74.13 Summary
75
75. Working with the Google Maps Android API in Android Studio
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75. Working with the Google Maps Android API in Android Studio
75.1 The Elements of the Google Maps Android API
75.2 Creating the Google Maps Project
75.3 Obtaining Your Developer Signature
75.4 Adding the Apache HTTP Legacy Library Requirement
75.5 Testing the Application
75.6 Understanding Geocoding and Reverse Geocoding
75.7 Adding a Map to an Application
75.8 Requesting Current Location Permission
75.9 Displaying the User’s Current Location
75.10 Changing the Map Type
75.11 Displaying Map Controls to the User
75.12 Handling Map Gesture Interaction
75.13 Creating Map Markers
75.14 Controlling the Map Camera
75.15 Summary
76
76. Printing with the Android Printing Framework
76. Printing with the Android Printing Framework
76.1 The Android Printing Architecture
76.2 The Print Service Plugins
76.3 Google Cloud Print
76.4 Printing to Google Drive
76.5 Save as PDF
76.6 Printing from Android Devices
76.7 Options for Building Print Support into Android Apps
76.8 Summary
77
77. An Android HTML and Web Content Printing Example
77. An Android HTML and Web Content Printing Example
77.1 Creating the HTML Printing Example Application
77.2 Printing Dynamic HTML Content
77.3 Creating the Web Page Printing Example
77.4 Removing the Floating Action Button
77.5 Removing Navigation Features
77.6 Designing the User Interface Layout
77.7 Accessing the WebView from the Main Activity
77.8 Loading the Web Page into the WebView
77.9 Adding the Print Menu Option
77.10 Summary
78
78. A Guide to Android Custom Document Printing
78. A Guide to Android Custom Document Printing
78.1 An Overview of Android Custom Document Printing
78.2 Preparing the Custom Document Printing Project
78.3 Creating the Custom Print Adapter
78.4 Implementing the onLayout() Callback Method
78.5 Implementing the onWrite() Callback Method
78.6 Checking a Page is in Range
78.7 Drawing the Content on the Page Canvas
78.8 Starting the Print Job
78.9 Testing the Application
78.10 Summary
79
79. An Introduction to Android App Links
79. An Introduction to Android App Links
79.1 An Overview of Android App Links
79.2 App Link Intent Filters
79.3 Handling App Link Intents
79.4 Associating the App with a Website
79.5 Summary
80
80. An Android Studio App Links Tutorial
80. An Android Studio App Links Tutorial
80.1 About the Example App
80.2 The Database Schema
80.3 Loading and Running the Project
80.4 Adding the URL Mapping
80.5 Adding the Intent Filter
80.6 Adding Intent Handling Code
80.7 Testing the App Link
80.8 Associating an App Link with a Web Site
80.9 Summary
81
81. A Guide to the Android Studio Profiler
81. A Guide to the Android Studio Profiler
81.1 Accessing the Android Profiler
81.2 Enabling Advanced Profiling
81.3 The Android Profiler Tool Window
81.4 The Sessions Panel
81.5 The CPU Profiler
81.6 Memory Profiler
81.7 Network Profiler
81.8 Energy Profiler
81.9 Summary
82
82. An Android Biometric Authentication Tutorial
82. An Android Biometric Authentication Tutorial
82.1 An Overview of Biometric Authentication
82.2 Creating the Biometric Authentication Project
82.3 Configuring Device Fingerprint Authentication
82.4 Adding the Biometric Permission to the Manifest File
82.5 Designing the User Interface
82.6 Adding a Toast Convenience Method
82.7 Checking the Security Settings
82.8 Configuring the Authentication Callbacks
82.9 Adding the CancellationSignal
82.10 Starting the Biometric Prompt
82.11 Testing the Project
82.12 Summary
83
83. Creating, Testing and Uploading an Android App Bundle
83. Creating, Testing and Uploading an Android App Bundle
83.1 The Release Preparation Process
83.2 Android App Bundles
83.3 Register for a Google Play Developer Console Account
83.4 Configuring the App in the Console
83.5 Enabling Google Play App Signing
83.6 Creating a Keystore File
83.7 Creating the Android App Bundle
83.8 Generating Test APK Files
83.9 Uploading the App Bundle to the Google Play Developer Console
83.10 Exploring the App Bundle
83.11 Managing Testers
83.12 Rolling the App Out for Testing
83.13 Uploading New App Bundle Revisions
83.14 Analyzing the App Bundle File
83.15 Summary
84
84. An Overview of Android Dynamic Feature Modules
84. An Overview of Android Dynamic Feature Modules
84.1 An Overview of Dynamic Feature Modules
84.2 Dynamic Feature Module Architecture
84.3 Creating a Dynamic Feature Module
84.4 Converting an Existing Module for Dynamic Delivery
84.5 Working with Dynamic Feature Modules
84.6 Handling Large Dynamic Feature Modules
84.7 Summary
85
85. An Android Studio Dynamic Feature Tutorial
85. An Android Studio Dynamic Feature Tutorial
85.1 Creating the DynamicFeature Project
85.2 Adding Dynamic Feature Support to the Project
85.3 Designing the Base Activity User Interface
85.4 Adding the Dynamic Feature Module
85.5 Reviewing the Dynamic Feature Module
85.6 Adding the Dynamic Feature Activity
85.7 Implementing the launchIntent() Method
85.8 Uploading the App Bundle for Testing
85.9 Implementing the installFeature() Method
85.10 Adding the Update Listener
85.11 Handling Large Downloads
85.12 Using Deferred Installation
85.13 Removing a Dynamic Module
85.14 Summary
86
86. An Overview of Gradle in Android Studio
86. An Overview of Gradle in Android Studio
86.1 An Overview of Gradle
86.2 Gradle and Android Studio
86.3 The Top-level Gradle Build File
86.4 Module Level Gradle Build Files
86.5 Configuring Signing Settings in the Build File
86.6 Running Gradle Tasks from the Command-line
86.7 Summary
87
Index
Index

75. Working with the Google Maps Android API in Android Studio

When Google decided to introduce a map service many years ago, it is hard to say whether or not they ever anticipated having a version available for integration into mobile applications. When the first web based version of what would eventually be called Google Maps was introduced in 2005, the iPhone had yet to ignite the smartphone revolution and the company that was developing the Android operating system would not be acquired by Google for another six months. Whatever aspirations Google had for the future of Google Maps, it is remarkable to consider that all of the power of Google Maps can now be accessed directly via Android applications using the Google Maps Android API.

This chapter is intended to provide an overview of the Google Maps system and Google Maps Android API. The chapter will provide an overview of the different elements that make up the API, detail the steps necessary to configure a development environment...

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