Picasso: Easy Image Loading on Android (The Book + Demo App Code)
Picasso: Easy Image Loading on Android
The Fast Approach to Build Image-Rich Apps
About the Book
Nowadays apps need to be polished to be successful. Picasso offers an easy way to add images to your app without much hassle. If your Android app uses images, this book will save you a ton of time researching and avoid long evenings of bug fixes. If you value your time, this is something for you.
We cover every functionality of the latest Picasso release. Of course, we'll update the book with future releases.
This book is for beginners and advanced readers as well. We’ll walk you through each topic with direct reference to code examples. Once you’ve worked through this book, you’ll have an extensive knowledge of image loading on Android with Picasso.
The content of this book is completely updated to Picasso 2.5.2!
What Topics are Covered in this Book?
The list below provides a comprehensive overview of covered topics within the book.
- Introduction to Picasso
- Loading and Displaying Images
- Placeholders, Resizing and Optimized Request Management
- Image Rotation and Transformations
- Caching Is Critical
- Customizing Picasso
- Practical Code Examples
- App Release Preparations
- Appendix: Use & Migrate to Picasso 3.0
Who Is This Book For?
This book is for Android developers who want to get an substantial overview and reference book of Picasso. You’ll benefit from the clearly recognizable code examples in regard to your daily work with Picasso.
If you’re just starting out with Picasso (or coming from any other image loading library like Glide) this book will show you all important parts on how to work with images. The provided code snippets let you jumpstart and create an image-rich app within minutes.
You already worked with Picasso before? You’ll profit from our extensive code snippets and can improve your existing code base. Additionally, the book illustrates various optimizations for an even better user experience.
Every code snippet in the book has been tested. The example project is provided as an extra download. We recommend to download it and check the full code base as you move through the book. We try to keep the code snippets in the book as short as possible. If more context is necessary, the example app's code provides it.
Free Lifetime Updates
We've released this book on Picasso in October 2015 and it's still getting updates. We've been updating the book with every minor Picasso release. We also added new chapters based on reader feedback. The price of the eBook went up along with its value. The first buyers of our products always get the best deal and the lowest price!
- We don't do sales with discounts, so don't wait for it
- Our prices only go up
- Buy now and get a voice for future improvements
Not Convinced Yet?
Fair enough! If you’re still on the fence if this book helps you, checkout the sample or, even better, use Leanpub’s (and our) happiness guarantee. Try this book out and if you don’t think this book provides enough value, you can refund your money within 45 days with no questions asked. You don’t have any risk in testing this book, which saves you hours of headaches and increases your app's quality and user experience.
Marcus is an enthusiastic Android & Java developer. He’s developed multiple production-ready client and server applications. While following the core principle of performance for client apps, he also builds REST+JSON APIs that focus on clear and consistent design.
Besides his day job, sharing knowledge and teaching others has become a characteristic he never wants to miss.
Marcus has a Master’s degree in computer science from the Otto von Guericke University Magdeburg.
Feel free to get in touch on Twitter @marcuspoehls.
About the Book
- What Topics are Covered in this Book?
- Who Is This Book For?
Chapter 1 — Image Loading
- What is Picasso?
- Basic Usage: Loading Image from a URL
- Advanced Loading: Loading from Various Sources
Chapter 2 — Displaying Images
- Adapter Usage
- Placeholders, Errors and Fading
- Image Resizing
Chapter 3 — Advanced Loading and Request Management
- Callbacks, RemoteViews and Notifications
- Ordering Requests
- Request Management
Chapter 4 — Image Rotation and Transformations
- Image Rotation
- Introduction to Transformations
- Additional Transformations with Transformation Library
Chapter 5 — Caches are Critical
- Influencing Caching
- Analyzing Cache Success Rates
Chapter 6 — Customizing Picasso
- Customizing Picasso with Picasso.Builder
- Influencing Picasso’s Behavior: Replacing the Downloader
- Catching and Analyzing Errors
- Analyzing Image Loading with Android Studio Profiler
- Log Image Loading with Stetho and Chrome Developer Tools
- Custom Request Handlers
Chapter 7 — Practical Use Cases
- ListView Items with Integrated ImageView
- Image Loading for RecyclerView and CardView
- Integrate CardView
Chapter 8 — App Release Preparation
- Enable ProGuard
- Configure ProGuard Rules for Picasso
- Obfuscated Stack Traces
Appendix — How to Use & Migrate to Picasso’s Upcoming 3.x Version
- Gradle Dependencies
Migrate from Picasso
Future Studio Books
- Future Studio Bundle
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