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Whilst you run a website, specifically an e-commerce website, it’s your accountability to be sure that transactions occur securely and that the information of your shoppers and shoppers...
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.
Purpose: GMKtec aims to provide customers with reliable high-quality products, professional after-sales service, and become a leading brand in the Mini PC industry.
About: GMKtec is a company established in 2019, focusing on the research, design, and production sales of computer hardware. We have our own R&D & manufacturing team. Our Mini PCs deliver the best powerful performance in an ultra-compact form for everyday computing tasks.
GMKtec M3 mini computer with Intel Core i5-12450H processor, main frequency up to 4.4 GHz, 8 cores, 12 threads, 12MB cache, running much faster than i7-11375H and AMD R7 5800H, Windows PC series The power is only 45W, supporting your daily work with less power consumption, without delaying daily tasks 【32GB DDR4(16GB*2) and 1TB NVME SSD】Desktop PC Comes with 32GB dual-channel DDR4 and 1TB SSD M.2 2280 NVMe (PCIe3.0), in addition, M.2 2242 SATA can be expanded to 2TB, runs faster than previous Core i5 / AMD Ryzen 5 processors and offers fast response whether it’s gaming or rendering rich 3D graphics 【4K UHD & 3 Screens Support】Mini PC with Intel Iris Xe Graphics G7 96EU GPU delivers high-quality graphics for the most demanding applications, 2 x HDMI (4K @ 60Hz) and 1 x USB Type-C (4K @ 60Hz) output terminals, allowing you to independently display 4K screens on 3 displays at the same time 【2.5Gbps LAN & WiFi6 + BT5.2】GMKtec mini PC dual band WiFi 2.4G+5G networking and Giga (RJ45 speed up to 2500M), Loading web, video, or other networked operations is faster and more stable, Bluetooth 5.2 connect faster Speed, Farther Coverage, it is also a big feature that you can transfer files over LAN at high speed 【Package Contents】1 x GMKtec Nucbox M3 Intel Core i5-12450H Mini PC Computer, 1 x Power Adapter, 1 x VESA Mount with Screws, 1 x HDMI Cable, 1 x User Manual 【24/7 Customer Support】GMKtec Mini PC, we provide a One-Year limited warranty and lifetime professional customer service. Please do not hesitate to contact us whenever you need pre-sale or after-sale support
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