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You're reading from Android Studio 4.0 Development Essentials - Kotlin Edition

Product type Book

Published in Oct 2020

Publisher Packt

ISBN-13 9781800560437

Pages 817 pages

Edition 1st Edition

Languages

Kotlin

Concepts

Android Development

Author (1):

Neil Smyth

Table of Contents (97) Chapters

1. Introduction

2. Setting up an Android Studio Development Environment

3. Creating an Example Android App in Android Studio

4. Creating an Android Virtual Device (AVD) in Android Studio

5. Using and Configuring the Android Studio AVD Emulator

6. A Tour of the Android Studio User Interface

7. Testing Android Studio Apps on a Physical Android Device

8. The Basics of the Android Studio Code Editor

9. An Overview of the Android Architecture

10. The Anatomy of an Android Application

11. An Introduction to Kotlin

12. Kotlin Data Types,Variables and Nullability

13. Kotlin Operators and Expressions

14. Kotlin Flow Control

15. An Overview of Kotlin Functions and Lambdas

16. The Basics of Object Oriented Programming in Kotlin

17. An Introduction to Kotlin Inheritance and Subclassing

18. An Overview of Android View Binding

19. Understanding Android Application and Activity Lifecycles

20. Handling Android Activity State Changes

21. Android Activity State Changes by Example

22. Saving and Restoring the State of an Android Activity

23. Understanding Android Views, View Groups and Layouts

24. A Guide to the Android Studio Layout Editor Tool

25. A Guide to the Android ConstraintLayout

26. A Guide to using ConstraintLayout in Android Studio

27. Working with ConstraintLayout Chains and Ratios in Android Studio

28. An Android Studio Layout Editor ConstraintLayout Tutorial

29. Manual XML Layout Design in Android Studio

30. Managing Constraints using Constraint Sets

31. An Android ConstraintSet Tutorial

32. A Guide to using Apply Changes in Android Studio

33. An Overview and Example of Android Event Handling

34. Android Touch and Multi-touch Event Handling

35. Detecting Common Gestures using the Android Gesture Detector Class

36. Implementing Custom Gesture and Pinch Recognition on Android

37. An Introduction to Android Fragments

38. Using Fragments in Android Studio - An Example

39. Modern Android App Architecture with Jetpack

40. An Android Jetpack ViewModel Tutorial

41. An Android Jetpack LiveData Tutorial

42. An Overview of Android Jetpack Data Binding

43. An Android Jetpack Data Binding Tutorial

44. An Android ViewModel Saved State Tutorial

45. Working with Android Lifecycle-Aware Components

46. An Android Jetpack Lifecycle Awareness Tutorial

47. An Overview of the Navigation Architecture Component

48. An Android Jetpack Navigation Component Tutorial

49. Creating and Managing Overflow Menus on Android

50. An Introduction to MotionLayout

51. An Android MotionLayout Editor Tutorial

52. A MotionLayout KeyCycle Tutorial

53. Working with the Floating Action Button and Snackbar

54. Creating a Tabbed Interface using the TabLayout Component

55. Working with the RecyclerView and CardView Widgets

56. An Android RecyclerView and CardView Tutorial

57. A Layout Editor Sample Data Tutorial

58. Working with the AppBar and Collapsing Toolbar Layouts

59. An Android Studio Master/Detail Flow Tutorial

60. An Overview of Android Intents

61. Android Explicit Intents – A Worked Example

62. Android Implicit Intents – A Worked Example

63. Android Broadcast Intents and Broadcast Receivers

64. A Basic Overview of Threads and AsyncTasks

65. An Introduction to Kotlin Coroutines

66. An Android Kotlin Coroutines Tutorial

67. An Overview of Android Started and Bound Services

68. Implementing an Android Started Service – A Worked Example

69. Android Local Bound Services – A Worked Example

70. Android Remote Bound Services – A Worked Example

71. An Android Notifications Tutorial

72. An Android Direct Reply Notification Tutorial

73. Foldable Devices and Multi-Window Support

74. An Overview of Android SQLite Databases

75. The Android Room Persistence Library

76. An Android TableLayout and TableRow Tutorial

77. An Android Room Database and Repository Tutorial

78. Accessing Cloud Storage using the Android Storage Access Framework

79. An Android Storage Access Framework Example

80. Video Playback on Android using the VideoView and MediaController Classes

81. Android Picture-in-Picture Mode

82. An Android Picture-in-Picture Tutorial

83. Making Runtime Permission Requests in Android

84. Android Audio Recording and Playback using MediaPlayer and MediaRecorder

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

86. Printing with the Android Printing Framework

87. An Android HTML and Web Content Printing Example

88. A Guide to Android Custom Document Printing

89. An Introduction to Android App Links

90. An Android Studio App Links Tutorial

91. A Guide to the Android Studio Profiler

92. An Android Biometric Authentication Tutorial

93. Creating, Testing and Uploading an Android App Bundle

94. An Overview of Android Dynamic Feature Modules

95. An Android Studio Dynamic Feature Tutorial

96. An Overview of Gradle in Android Studio

Index

58.1 The Anatomy of an AppBar

The app bar is the area that appears at the top of the display when an app is running and can be configured to contain a variety of different items including the status bar, toolbar, tab bar and a flexible space area. Figure 58-1, for example, shows an app bar containing a status bar, toolbar and tab bar:

Figure 58-1

The flexible space area can be filled by a blank background color, or as shown in Figure 58-2, an image displayed on an ImageView object:

Figure 58-2

As will be demonstrated in the remainder of this chapter, if the main content area of the activity user interface layout contains scrollable content, the elements of the app bar can be configured to expand and contract as the content on the screen is scrolled.