Build a range of Android applications that address common real-world issues such as authentication, connecting to synchronous and asynchronous remote sources, rendering complex UIs with Jetpack Compose, and more with Google Developer Expert, Gema Socorro Rodriguez
Key FeaturesGet hands on with Android development by solving challenging real-world problems and developing three practical projectsUse the latest features of libraries in Jetpack Compose, Room, CameraX, ExoPlayer, and moreLearn best practices for UI creation, app structure, data handling, and lifecycle management in AndroidPurchase of the print or Kindle book includes a free PDF eBookBook Description
Finding resources on creating apps with the Android framework and Kotlin is easy, but discovering content that addresses the common challenges faced by app developers is difficult. This book is designed to bridge that gap and equip you with the skills to tackle everyday problems in Android development.
You’ll get hands on with Android development by building an app similar to WhatsApp. Next, you’ll learn how to process asynchronous messages reactively, render them using Jetpack Compose, and advance to creating and uploading a backup of these messages. As you progress, you’ll develop Packtagram, an app inspired by Instagram, focused on advanced photo-editing capabilities using the latest CameraX libraries. Finally, you’ll build your own Netflix-like app, integrating video playback functionality with ExoPlayer for both foreground and background operations, and enabling casting to other devices.
By the end of this book, you’ll have crafted three fully functional projects across multiple platforms and gained the expertise to solve the most common challenges in Android development confidently.
What you will learnCreate complex UIs with Jetpack ComposeStructure and modularize apps with a focus on further scalingConnect your app to synchronous and asynchronous remote sourcesStore and cache information and manage the lifecycle of this dataExecute periodic tasks using WorkManagerCapture and edit photos and videos using CameraXAuthenticate your users securelyPlay videos in the foreground and background and cast them to other devicesWho this book is for
If you’re a mid-level Android engineer, this book is for you as it will not only teach you how to solve issues that occur in real-world apps but also benefit you in your day-to-day work. This book will also help junior engineers who want to get exposed to complex problems and explore best practices to solve them. A basic understanding of Android and Kotlin concepts such as views, activities, lifecycle, and Kotlin coroutines will be useful to get the most out of this book.
Table of ContentsBuilding the UI for Your Messaging AppSetting Up WhatsPackt’s Messaging AbilitiesBacking Up Your WhatsPackt MessagesBuilding the Packtagram UICreating a Photo Editor Using CameraXAdding Video and Editing Functionality to PacktagramStarting a Video Streaming App and Adding AuthenticationAdding Media Playback to Packtflix with ExoPlayerExtending Video Playback in Your Packtflix App
From the Publisher
How has your experience helped you to write this book?
My experience in Android development since 2009 has been instrumental in crafting the content of this book. Over the years, I’ve worked on a diverse range of projects, from self-service kiosks and social networks to ride-hailing apps, each presenting unique challenges that have given me a deep understanding of the real-world problems developers face and best practices to solve them.
Moreover, my hands-on experience with modern Android technologies like Kotlin, Jetpack Compose, and ExoPlayer, as well as my leadership roles in large-scale projects, have provided me with valuable insights into structuring and scaling Android apps. This book is a culmination of the knowledge I’ve gained from adapting to Android’s evolution, solving complex problems, and leading initiatives to implement innovative features. My goal is to share these practical insights and help other developers navigate the challenges of Android development more effectively.
What are some of your favorite parts of the book, and why?
Each chapter offers unique insights and practical solutions to real-world Android development challenges, but two chapters particularly stand out to me:
Chapter 8, focusing on ExoPlayer, excites me because it showcases the power and versatility of this library for handling video content. I’ve always been impressed by ExoPlayer’s capabilities and its developer-friendly nature.
Chapter 5, which explores CameraX, covering camera functionalities such as integrating machine learning for photo theme recognition and hashtag suggestions.
Both chapters demonstrate the balance between powerful functionality and ease of implementation in modern Android development. They illustrate how developers can create sophisticated media features—whether it’s advanced video playback or intelligent photo capturing and editing—with relative ease.
In what ways have you been part of the Android community?
I’ve been actively involved in the Android community since 2009, but I really ramped up my engagement in 2018. That’s when I started giving technical talks, driven by a desire to give back to a community that had always been incredibly helpful to me. I also became involved in mentoring other developers, helping them grow their Android development skills and careers.
In 2022, Google named me a Developer Expert for Android, which has allowed me to reach and help even more people. Now, with this book and my ongoing community contributions, I’m sharing the important things I have learned to help other developers overcome challenges and use best practices. The Android community has been crucial to my growth, and I’m committed to continuing my active role in it.
What key takeaways do you hope readers will have after finishing your book?
After reading this book, you’ll be ready to tackle real Android development challenges head-on. You’ll have built the most relevant features of three complex apps – for messaging, social media, and video streaming. This hands-on experience will give you the skills to handle a wide range of app development scenarios. You’ll also know how to use the latest Android tools effectively, from Jetpack Compose for UIs to ExoPlayer for videos and CameraX for photos.
You’ll learn best practices for structuring large apps, making them not just work, but work well in the real world. The book will teach you to think like a problem-solver, breaking down big issues into manageable parts. By the end, you’ll be able to create sophisticated, production-ready Android apps. You’ll have the technical skills and practical know-how to build apps that meet real-world demands.
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PRODUCT OVERVIEWiPhone 14 Plus. Think big with a larger 6.7-inch display and all-day battery life. Capture stunning photos in low light and bright light with the new dual-camera system. Get peace of mind with groundbreaking safety features.KEY FEATURES6.7-inch Super Retina XDR displayAdvanced camera system for better photos in any lightCinematic mode now in 4K Dolby Vision up to 30 fpsAction mode for smooth, steady, handheld videosVital safety features—Emergency SOS via satellite and Crash DetectionAll-day battery life and up to 26 hours of video playbackA15 Bionic chip with 5-core GPU for lightning-fast performance. Superfast 5G cellularIndustry-leading durability features with Ceramic Shield and water resistanceiOS 16 offers even more ways to personalize, communicate, and shareThe display has rounded corners. When measured as a standard rectangular shape, the screen is 6.68 inches diagonally. Actual viewable area is less.Battery life varies by use and configuration; see apple.com/batteries for more information.Emergency SOS via satellite is available in November 2022. Service is included for free for two years with the activation of any iPhone 14 model.Connection and response times vary based on location, site conditions, and other factors. See apple.com/iphone-14 or apple.com/iphone-14-pro for more information.Data plan required. 5G is available in select markets and through select carriers. Speeds vary based on site conditions and carrier. For details on 5G support, contact your carrier and see apple.com/iphone/cellular.iPhone 14 Plus is splash, water, and dust resistant and was tested under controlled laboratory conditions with a rating of IP68 under IEC standard 60529 (maximum depth of 6 meters up to 30 minutes).Splash, water, and dust resistance are not permanent conditions. Resistance might decrease as a result of normal wear. Do not attempt to charge a wet iPhone; refer to the user guide for cleaning and drying instructions. Liquid damage not covered under 6.7-inch Super Retina XDR display and advanced camera system for better photos in any light. Cinematic mode now in 4K Dolby Vision up to 30 fps. Action mode for smooth, steady, handheld videos. All-day battery life and up to 26 hours of video playback. A15 Bionic chip with 5-core GPU for lightning-fast performance. Superfast 5G cellular. manufacturer : Apple Computer
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PRODUCT OVERVIEWiPhone 14 Plus. Think big with a larger 6.7-inch display and all-day battery life. Capture stunning photos in low light and bright light with the new dual-camera system. Get peace of mind with groundbreaking safety features.KEY FEATURES6.7-inch Super Retina XDR displayAdvanced camera system for better photos in any lightCinematic mode now in 4K Dolby Vision up to 30 fpsAction mode for smooth, steady, handheld videosVital safety features—Emergency SOS via satellite and Crash DetectionAll-day battery life and up to 26 hours of video playbackA15 Bionic chip with 5-core GPU for lightning-fast performance. Superfast 5G cellularIndustry-leading durability features with Ceramic Shield and water resistanceiOS 16 offers even more ways to personalize, communicate, and shareThe display has rounded corners. When measured as a standard rectangular shape, the screen is 6.68 inches diagonally. Actual viewable area is less.Battery life varies by use and configuration; see apple.com/batteries for more information.Emergency SOS via satellite is available in November 2022. Service is included for free for two years with the activation of any iPhone 14 model.Connection and response times vary based on location, site conditions, and other factors. See apple.com/iphone-14 or apple.com/iphone-14-pro for more information.Data plan required. 5G is available in select markets and through select carriers. Speeds vary based on site conditions and carrier. For details on 5G support, contact your carrier and see apple.com/iphone/cellular.iPhone 14 Plus is splash, water, and dust resistant and was tested under controlled laboratory conditions with a rating of IP68 under IEC standard 60529 (maximum depth of 6 meters up to 30 minutes).Splash, water, and dust resistance are not permanent conditions. Resistance might decrease as a result of normal wear. Do not attempt to charge a wet iPhone; refer to the user guide for cleaning and drying instructions. Liquid damage not covered under 6.7-inch Super Retina XDR display & advanced camera system for better photos in any light. Cinematic mode now in 4K Dolby Vision up to 30 fps. Action mode for smooth, steady, handheld videos. All-day battery life & up to 26 hours of video playback. A15 Bionic chip with 5-core GPU for lightning-fast performance. Superfast 5G cellular. Manufacturer: Apple Computer
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A dynamic perspective that optimizes online interactions with a clear and immersive workspace view.
Handheld Mode
Handheld mode offers flexibility in capturing angles, moments, and preserving wonderful memories.
Webcam with Macro Lens
Magnify amazing details with ideaCam’s 15x zoom glass lens and built-in light. Explore textures, materials, printing for inspiration.
Smart Flip
ideaCam detects camera status, offers portrait, desk view & handheld modes for better online communication.
Smart Focus
ideaCam auto-focuses in desk view mode for clear document display. *Requires “BenQ EnSpire” software.
Portrait Mode
Portrait mode optimizes settings for vibrant facial features. It adjusts focus and aperture, presenting your best on camera.
Dual Image Style
ideaCam can automatically switch between “Portrait” mode for capturing people and “Deskview” mode for capturing objects.
Instant Demonstrations
A new way to deliver information during online communication.
Software for ideaCam – EnSpire
Visual tool with corner correction, split-screen, annotation, and freeze functions – improves work efficiency.
ideaCam mounts seamlessly on various monitors, including BenQ monitors and curved models, with a thickness of 1 to 7.5cm.
ideaCam provides a 1/4-inch tripod hole compatible with universal tripods, allowing it to be used as a document camera.
BenQ ideaCam Bundle Set
BenQ ideaCam Bundle Set
BenQ ideaCam Bundle Set
【Make sure update ideaCam firmware to the latest version and use EnSpire app from BenQ website for a better experience.】 Magnify working samples with ideaCam’s 15x zoom glass lens. Explore textures, materials, printing, EE layout, and gaps for working samples. Enhance clarity and improve communication effortlessly. > 50x with Digital Zoom by using BenQ EnSpire. 【Make sure update ideaCam firmware to the latest version and use EnSpire app from BenQ website for a better experience.】 Handheld mode offers flexibility in capturing angles, moments. Effortlessly showcase sketches, samples, materials, draft mock-ups, prototypes, and 3D printing models for instant synchronization of thoughts. Transit effortlessly from live demo to offline idea recordings. BenQ EnSpire can seamlessly integrate with popular platforms such as Zoom, Microsoft Teams, Google Meet, and Skype. Swiftly transition from webcam to document camera in just 1 second, easily demonstrate your creativity without any upside-down confusion. Enhance the fluency of your Hybrid work communication. BenQ EnSpire Control Puck: Easy and convenient display and communication experience without operating complicated interface.(One-touch easy remote control is ONLY for BenQ EnSpire.) 【Live demo webcam for Desktop Computer and Remote Live Demo Meetings and Crafting stream:】8M Sony Sensor, Auto Exposure, Auto Focus, and AI-Noise-canceling Microphone, Object Ring Light, and a 15x Zoom Lens. BenQ EnSpire Software. – Not support for Low Lux Environments. – For professionals require detailed item inspection, product quality assessment, or crafting streaming. ideaCam offers the ideal solution for your remote working, online conferencing, and distance teaching needs.
Price: (as of - Details) From the brand Welcome to Wagner Stern, where exceptional design meets superior oral care. Our electric toothbrushes feature...
