Jetpack Compose 1.4 Essentials

Name: Jetpack Compose 1.4 Essentials | Developing Android Apps with Jetpack Compose 1.4, Android Studio, and Kotlin
Brand: Payload Media, Inc.
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Developing Android Apps with Jetpack Compose 1.4, Android Studio, and Kotlin

Smyth(Autor*in)

Payload Media, Inc. (Verlag)

1. Auflage

Erschienen am 7. September 2023

606 Seiten

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978-1-0882-9750-6 (ISBN)

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Inhalt

Intro
1. Start Here
1.1 For Kotlin programmers
1.2 For new Kotlin programmers
1.3 Downloading the code samples
1.4 Feedback
1.5 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 Installing the Android SDK Command-line Tools
2.6.1 Windows 8.1
2.6.2 Windows 10
2.6.3 Windows 11
2.6.4 Linux
2.6.5 macOS
2.7 Android Studio memory management
2.8 Updating Android Studio and the SDK
2.9 Summary
3. A Compose Project Overview
3.1 About the project
3.2 Creating the project
3.3 Creating an activity
3.4 Defining the project and SDK settings
3.5 Enabling the New Android Studio UI
3.6 Previewing the example project
3.7 Reviewing the main activity
3.8 Preview updates
3.9 Bill of Materials and the Compose version
3.10 Summary
4. An Example Compose Project
4.1 Getting started
4.2 Removing the template Code
4.3 The Composable hierarchy
4.4 Adding the DemoText composable
4.5 Previewing the DemoText composable
4.6 Adding the DemoSlider composable
4.7 Adding the DemoScreen composable
4.8 Previewing the DemoScreen composable
4.9 Adjusting preview settings
4.10 Testing in interactive mode
4.11 Completing the project
4.12 Summary
5. Creating an Android Virtual Device (AVD) in Android Studio
5.1 About Android Virtual Devices
5.2 Starting the Emulator
5.3 Running the Application in the AVD
5.4 Real-time updates with Live Edit
5.5 Running on Multiple Devices
5.6 Stopping a Running Application
5.7 Supporting Dark Theme
5.8 Running the Emulator in a Separate Window
5.9 Enabling the Device Frame
5.10 Summary
6. Using and Configuring the Android Studio AVD Emulator
6.1 The Emulator Environment
6.2 Emulator Toolbar Options
6.3 Working in Zoom Mode
6.4 Resizing the Emulator Window
6.5 Extended Control Options
6.5.1 Location
6.5.2 Displays
6.5.3 Cellular
6.5.4 Battery
6.5.5 Camera
6.5.6 Phone
6.5.7 Directional Pad
6.5.8 Microphone
6.5.9 Fingerprint
6.5.10 Virtual Sensors
6.5.11 Snapshots
6.5.12 Record and Playback
6.5.13 Google Play
6.5.14 Settings
6.5.15 Help
6.6 Working with Snapshots
6.7 Configuring Fingerprint Emulation
6.8 The Emulator in Tool Window Mode
6.9 Creating a Resizable Emulator
6.10 Summary
7. A Tour of the Android Studio User Interface
7.1 The Welcome Screen
7.2 The Menu Bar
7.3 The Main Window
7.4 The Tool Windows
7.5 The Tool Window Menus
7.6 Android Studio Keyboard Shortcuts
7.7 Switcher and Recent Files Navigation
7.8 Changing the Android Studio Theme
7.9 Summary
8. Testing Android Studio Apps on a Physical Android Device
8.1 An Overview of the Android Debug Bridge (ADB)
8.2 Enabling USB Debugging ADB on Android Devices
8.2.1 macOS ADB Configuration
8.2.2 Windows ADB Configuration
8.2.3 Linux adb Configuration
8.3 Resolving USB Connection Issues
8.4 Enabling Wireless Debugging on Android Devices
8.5 Testing the adb Connection
8.6 Device Mirroring
8.7 Summary
9. The Basics of the Android Studio Code Editor
9.1 The Android Studio Editor
9.2 Splitting the Editor Window
9.3 Code Completion
9.4 Statement Completion
9.5 Parameter Information
9.6 Parameter Name Hints
9.7 Code Generation
9.8 Code Folding
9.9 Quick Documentation Lookup
9.10 Code Reformatting
9.11 Finding Sample Code
9.12 Live Templates
9.13 Summary
10. An Overview of the Android Architecture
10.1 The Android software stack
10.2 The Linux kernel
10.3 Android runtime - ART
10.4 Android libraries
10.4.1 C/C++ libraries
10.5 Application framework
10.6 Applications
10.7 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 Compose
18.1 Development before Compose
18.2 Compose declarative syntax
18.3 Compose is data-driven
18.4 Summary
19. Composable Functions Overview
19.1 What is a composable function?
19.2 Stateful vs. stateless composables
19.3 Composable function syntax
19.4 Foundation and Material composables
19.5 Summary
20. An Overview of Compose State and Recomposition
20.1 The basics of state
20.2 Introducing recomposition
20.3 Creating the StateExample project
20.4 Declaring state in a composable
20.5 Unidirectional data flow
20.6 State hoisting
20.7 Saving state through configuration changes
20.8 Summary
21. An Introduction to Composition Local
21.1 Understanding CompositionLocal
21.2 Using CompositionLocal
21.3 Creating the CompLocalDemo project
21.4 Designing the layout
21.5 Adding the CompositionLocal state
21.6 Accessing the CompositionLocal state
21.7 Testing the design
21.8 Summary
22. An Overview of Compose Slot APIs
22.1 Understanding slot APIs
22.2 Declaring a slot API
22.3 Calling slot API composables
22.4 Summary
23. A Compose Slot API Tutorial
23.1 About the project
23.2 Creating the SlotApiDemo project
23.3 Preparing the MainActivity class file
23.4 Creating the MainScreen composable
23.5 Adding the ScreenContent composable
23.6 Creating the Checkbox composable
23.7 Implementing the ScreenContent slot API
23.8 Adding an Image drawable resource
23.9 Coding the TitleImage composable
23.10 Completing the MainScreen composable
23.11 Previewing the project
23.12 Summary
24. Using Modifiers in Compose
24.1 An overview of modifiers
24.2 Creating the ModifierDemo project
24.3 Creating a modifier
24.4 Modifier ordering
24.5 Adding modifier support to a composable
24.6 Common built-in modifiers
24.7 Combining modifiers
24.8 Summary
25. Annotated Strings and Brush Styles
25.1 What are annotated strings?
25.2 Using annotated strings
25.3 Brush Text Styling
25.4 Creating the example project
25.5 An example SpanStyle annotated string
25.6 An example ParagraphStyle annotated string
25.7 A Brush style example
25.8 Summary
26. Composing Layouts with Row and Column
26.1 Creating the RowColDemo project
26.2 Row composable
26.3 Column composable
26.4 Combining Row and Column composables
26.5 Layout alignment
26.6 Layout arrangement positioning
26.7 Layout arrangement spacing
26.8 Row and Column scope modifiers
26.9 Scope modifier weights
26.10 Summary
27. Box Layouts in Compose
27.1 An introduction to the Box composable
27.2 Creating the BoxLayout project
27.3 Adding the TextCell composable
27.4 Adding a Box layout
27.5 Box alignment
27.6 BoxScope modifiers
27.7 Using the clip() modifier
27.8 Summary
28. An Introduction to FlowRow and FlowColumn
28.1 FlowColumn and FlowRow
28.2 Maximum number of items
28.3 Working with main axis arrangement
28.4 Understanding cross-axis arrangement
28.5 Item alignment
28.6 Controlling item size
28.7 Summary
29. A FlowRow and FlowColumn Tutorial
29.1 Creating the FlowLayoutDemo project
29.2 Generating random height and color values
29.3 Adding the Box Composable
29.4 Modifying the Flow arrangement
29.5 Modifying item alignment
29.6 Switching to FlowColumn
29.7 Using cross-axis arrangement
29.8 Adding item weights
29.9 Summary
30. Custom Layout Modifiers
30.1 Compose layout basics
30.2 Custom layouts
30.3 Creating the LayoutModifier project
30.4 Adding the ColorBox composable
30.5 Creating a custom layout modifier
30.6 Understanding default position
30.7 Completing the layout modifier
30.8 Using a custom modifier
30.9 Working with alignment lines
30.10 Working with baselines
30.11 Summary
31. Building Custom Layouts
31.1 An overview of custom layouts
31.2 Custom layout syntax
31.3 Using a custom layout
31.4 Creating the CustomLayout project
31.5 Creating the CascadeLayout composable
31.6 Using the CascadeLayout composable
31.7 Summary
32. A Guide to ConstraintLayout in Compose
32.1 An introduction to ConstraintLayout
32.2 How ConstraintLayout works
32.2.1 Constraints
32.2.2 Margins
32.2.3 Opposing constraints
32.2.4 Constraint bias
32.2.5 Chains
32.2.6 Chain styles
32.3 Configuring dimensions
32.4 Guideline helper
32.5 Barrier helper
32.6 Summary
33. Working with ConstraintLayout in Compose
33.1 Calling ConstraintLayout
33.2 Generating references
33.3 Assigning a reference to a composable
33.4 Adding constraints
33.5 Creating the ConstraintLayout project
33.6 Adding the ConstraintLayout library
33.7 Adding a custom button composable
33.8 Basic constraints
33.9 Opposing constraints
33.10 Constraint bias
33.11 Constraint margins
33.12 The importance of opposing constraints and bias
33.13 Creating chains
33.14 Working with guidelines
33.15 Working with barriers
33.16 Decoupling constraints with constraint sets
33.17 Summary
34. Working with IntrinsicSize in Compose
34.1 Intrinsic measurements
34.2 Max. vs Min. Intrinsic Size measurements
34.3 About the example project
34.4 Creating the IntrinsicSizeDemo project
34.5 Creating the custom text field
34.6 Adding the Text and Box components
34.7 Adding the top-level Column
34.8 Testing the project
34.9 Applying IntrinsicSize.Max measurements
34.10 Applying IntrinsicSize.Min measurements
34.11 Summary
35. Coroutines and LaunchedEffects in Jetpack Compose
35.1 What are coroutines?
35.2 Threads vs. coroutines
35.3 Coroutine Scope
35.4 Suspend functions
35.5 Coroutine dispatchers
35.6 Coroutine builders
35.7 Jobs
35.8 Coroutines - suspending and resuming
35.9 Coroutine channel communication
35.10 Understanding side effects
35.11 Summary
36. An Overview of Lists and Grids in Compose
36.1 Standard vs. lazy lists
36.2 Working with Column and Row lists
36.3 Creating lazy lists
36.4 Enabling scrolling with ScrollState
36.5 Programmatic scrolling
36.6 Sticky headers
36.7 Responding to scroll position
36.8 Creating a lazy grid
36.9 Summary
37. A Compose Row and Column List Tutorial
37.1 Creating the ListDemo project
37.2 Creating a Column-based list
37.3 Enabling list scrolling
37.4 Manual scrolling
37.5 A Row list example
37.6 Summary
38. A Compose Lazy List Tutorial
38.1 Creating the LazyListDemo project
38.2 Adding list data to the project
38.3 Reading the XML data
38.4 Handling image loading
38.5 Designing the list item composable
38.6 Building the lazy list
38.7 Testing the project
38.8 Making list items clickable
38.9 Summary
39. Lazy List Sticky Headers and Scroll Detection
39.1 Grouping the list item data
39.2 Displaying the headers and items
39.3 Adding sticky headers
39.4 Reacting to scroll position
39.5 Adding the scroll button
39.6 Testing the finished app
39.7 Summary
40. A Compose Lazy Staggered Grid Tutorial
40.1 Lazy Staggered Grids
40.2 Creating the StaggeredGridDemo project
40.3 Adding the Box composable
40.4 Generating random height and color values
40.5 Creating the Staggered List
40.6 Testing the project
40.7 Switching to a horizontal staggered grid
40.8 Summary
41. VerticalPager and HorizontalPager in Compose
41.1 The Pager composables
41.2 Working with pager state
41.3 About the PagerDemo project
41.4 Creating the PagerDemo project
41.5 Modifying the build configuration
41.6 Adding the book cover images
41.7 Adding the HorizontalPager
41.8 Creating the page content
41.9 Testing the pager
41.10 Adding the arrow buttons
41.11 Summary
42. Compose Visibility Animation
42.1 Creating the AnimateVisibility project
42.2 Animating visibility
42.3 Defining enter and exit animations
42.4 Animation specs and animation easing
42.5 Repeating an animation
42.6 Different animations for different children
42.7 Auto-starting an animation
42.8 Implementing crossfading
42.9 Summary
43. Compose State-Driven Animation
43.1 Understanding state-driven animation
43.2 Introducing animate as state functions
43.3 Creating the AnimateState project
43.4 Animating rotation with animateFloatAsState
43.5 Animating color changes with animateColorAsState
43.6 Animating motion with animateDpAsState
43.7 Adding spring effects
43.8 Working with keyframes
43.9 Combining multiple animations
43.10 Using the Animation Inspector
43.11 Summary
44. Canvas Graphics Drawing in Compose
44.1 Introducing the Canvas component
44.2 Creating the CanvasDemo project
44.3 Drawing a line and getting the canvas size
44.4 Drawing dashed lines
44.5 Drawing a rectangle
44.6 Applying rotation
44.7 Drawing circles and ovals
44.8 Drawing gradients
44.9 Drawing arcs
44.10 Drawing paths
44.11 Drawing points
44.12 Drawing an image
44.13 Drawing text
44.14 Summary
45. Working with ViewModels in Compose
45.1 What is Android Jetpack?
45.2 The "old" architecture
45.3 Modern Android architecture
45.4 The ViewModel component
45.5 ViewModel implementation using state
45.6 Connecting a ViewModel state to an activity
45.7 ViewModel implementation using LiveData
45.8 Observing ViewModel LiveData within an activity
45.9 Summary
46. A Compose ViewModel Tutorial
46.1 About the project
46.2 Creating the ViewModelDemo project
46.3 Adding the ViewModel
46.4 Accessing DemoViewModel from MainActivity
46.5 Designing the temperature input composable
46.6 Designing the temperature input composable
46.7 Completing the user interface design
46.8 Testing the app
46.9 Summary
47. An Overview of Android SQLite Databases
47.1 Understanding database tables
47.2 Introducing database schema
47.3 Columns and data types
47.4 Database rows
47.5 Introducing primary keys
47.6 What is SQLite?
47.7 Structured Query Language (SQL)
47.8 Trying SQLite on an Android Virtual Device (AVD)
47.9 The Android Room persistence library
47.10 Summary
48. Room Databases and Compose
48.1 Revisiting modern app architecture
48.2 Key elements of Room database persistence
48.2.1 Repository
48.2.2 Room database
48.2.3 Data Access Object (DAO)
48.2.4 Entities
48.2.5 SQLite database
48.3 Understanding entities
48.4 Data Access Objects
48.5 The Room database
48.6 The Repository
48.7 In-Memory databases
48.8 Database Inspector
48.9 Summary
49. A Compose Room Database and Repository Tutorial
49.1 About the RoomDemo project
49.2 Creating the RoomDemo project
49.3 Modifying the build configuration
49.4 Building the entity
49.5 Creating the Data Access Object
49.6 Adding the Room database
49.7 Adding the repository
49.8 Adding the ViewModel
49.9 Designing the user interface
49.10 Writing a ViewModelProvider Factory class
49.11 Completing the MainScreen function
49.12 Testing the RoomDemo app
49.13 Using the Database Inspector
49.14 Summary
50. An Overview of Navigation in Compose
50.1 Understanding navigation
50.2 Declaring a navigation controller
50.3 Declaring a navigation host
50.4 Adding destinations to the navigation graph
50.5 Navigating to destinations
50.6 Passing arguments to a destination
50.7 Working with bottom navigation bars
50.8 Summary
51. A Compose Navigation Tutorial
51.1 Creating the NavigationDemo project
51.2 About the NavigationDemo project
51.3 Declaring the navigation routes
51.4 Adding the home screen
51.5 Adding the welcome screen
51.6 Adding the profile screen
51.7 Creating the navigation controller and host
51.8 Implementing the screen navigation
51.9 Passing the user name argument
51.10 Testing the project
51.11 Summary
52. A Compose Navigation Bar Tutorial
52.1 Creating the BottomBarDemo project
52.2 Declaring the navigation routes
52.3 Designing bar items
52.4 Creating the bar item list
52.5 Adding the destination screens
52.6 Creating the navigation controller and host
52.7 Designing the navigation bar
52.8 Working with the Scaffold component
52.9 Testing the project
52.10 Summary
53. Detecting Gestures in Compose
53.1 Compose gesture detection
53.2 Creating the GestureDemo project
53.3 Detecting click gestures
53.4 Detecting taps using PointerInputScope
53.5 Detecting drag gestures
53.6 Detecting drag gestures using PointerInputScope
53.7 Scrolling using the scrollable modifier
53.8 Scrolling using the scroll modifiers
53.9 Detecting pinch gestures
53.10 Detecting rotation gestures
53.11 Detecting translation gestures
53.12 Summary
54. An Introduction to Kotlin Flow
54.1 Understanding Flows
54.2 Creating the sample project
54.3 Adding a view model to the project
54.4 Declaring the flow
54.5 Emitting flow data
54.6 Collecting flow data as state
54.7 Transforming data with intermediaries
54.8 Collecting flow data
54.9 Adding a flow buffer
54.10 More terminal flow operators
54.11 Flow flattening
54.12 Combining multiple flows
54.13 Hot and cold flows
54.14 StateFlow
54.15 SharedFlow
54.16 Converting a flow from cold to hot
54.17 Summary
55. A Jetpack Compose SharedFlow Tutorial
55.1 About the project
55.2 Creating the SharedFlowDemo project
55.3 Adding a view model to the project
55.4 Declaring the SharedFlow
55.5 Collecting the flow values
55.6 Testing the SharedFlowDemo app
55.7 Handling flows in the background
55.8 Summary
56. Creating, Testing, and Uploading an Android App Bundle
56.1 The Release Preparation Process
56.2 Android App Bundles
56.3 Register for a Google Play Developer Console Account
56.4 Configuring the App in the Console
56.5 Enabling Google Play App Signing
56.6 Creating a Keystore File
56.7 Creating the Android App Bundle
56.8 Generating Test APK Files
56.9 Uploading the App Bundle to the Google Play Developer Console
56.10 Exploring the App Bundle
56.11 Managing Testers
56.12 Rolling the App Out for Testing
56.13 Uploading New App Bundle Revisions
56.14 Analyzing the App Bundle File
56.15 Summary
57. An Overview of Android In-App Billing
57.1 Preparing a project for In-App purchasing
57.2 Creating In-App products and subscriptions
57.3 Billing client initialization
57.4 Connecting to the Google Play Billing library
57.5 Querying available products
57.6 Starting the purchase process
57.7 Completing the purchase
57.8 Querying previous purchases
57.9 Summary
58. An Android In-App Purchasing Tutorial
58.1 About the In-App purchasing example project
58.2 Creating the InAppPurchase project
58.3 Adding libraries to the project
58.4 Adding the App to the Google Play Store
58.5 Creating an In-App product
58.6 Enabling license testers
58.7 Creating a purchase helper class
58.8 Adding the StateFlow streams
58.9 Initializing the billing client
58.10 Querying the product
58.11 Handling purchase updates
58.12 Launching the purchase flow
58.13 Consuming the product
58.14 Restoring a previous purchase
58.15 Completing the MainActivity
58.16 Testing the app
58.17 Troubleshooting
58.18 Summary
59. Working with Compose Theming
59.1 Material Design 2 vs. Material Design 3
59.2 Material Design 3 theming
59.3 Building a custom theme
59.4 Summary
60. A Material Design 3 Theming Tutorial
60.1 Creating the ThemeDemo project
60.2 Designing the user interface
60.3 Building a new theme
60.4 Adding the theme to the project
60.5 Enabling dynamic colors
60.6 Summary
61. An Overview of Gradle in Android Studio
61.1 An Overview of Gradle
61.2 Gradle and Android Studio
61.2.1 Sensible Defaults
61.2.2 Dependencies
61.2.3 Build Variants
61.2.4 Manifest Entries
61.2.5 APK Signing
61.2.6 ProGuard Support
61.3 The Property and Settings Gradle Build File
61.4 The Top-level Gradle Build File
61.5 Module Level Gradle Build Files
61.6 Configuring Signing Settings in the Build File
61.7 Running Gradle Tasks from the Command Line
61.8 Summary
Index

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