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Android Design Patterns and Best Practice

Android Design Patterns and Best Practice

By : Mew
3.3 (3)
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Android Design Patterns and Best Practice

Android Design Patterns and Best Practice

3.3 (3)
By: Mew

Overview of this book

Are you an Android developer with some experience under your belt? Are you wondering how the experts create efficient and good-looking apps? Then your wait will end with this book! We will teach you about different Android development patterns that will enable you to write clean code and make your app stand out from the crowd. The book starts by introducing the Android development environment and exploring the support libraries. You will gradually explore the different design and layout patterns and get to know the best practices of how to use them together. Then you’ll then develop an application that will help you grasp activities, services, and broadcasts and their roles in Android development. Moving on, you will add user-detecting classes and APIs such as gesture detection, touch screen listeners, and sensors to your app. You will also learn to adapt your app to run on tablets and other devices and platforms, including Android Wear, auto, and TV. Finally, you will see how to connect your app to social media and explore deployment patterns as well as the best publishing and monetizing practices. The book will start by introducing the Android development environment and exploring the support libraries. You will gradually explore the different Design and layout patterns and learn the best practices on how to use them together. You will then develop an application that will help you grasp Activities, Services and Broadcasts and their roles in Android development. Moving on, you will add user detecting classes and APIs such as at gesture detection, touch screen listeners and sensors to our app. You will also learn to adapt your app to run on tablets and other devices and platforms, including Android Wear, Auto, and TV. Finally, you will learn to connect your app to social media and explore deployment patterns and best publishing and monetizing practices.
Table of Contents (14 chapters)
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Adding image resources

One of the most interesting challenges that Android offers is the vast number of screen densities and sizes that we have to cater for. This is particularly true when it comes displaying bitmap images, where there are two competing issues that need to be resolved:

  • Low resolution images display very poorly when stretched to fit on large or high resolution screens
  • High quality images use up far more memory than is needed when displayed on smaller, low density screens.

Screen sizes aside, the problem of differing screen densities is mostly solved with the use of density-independent pixels (dp).

Managing screen densities

Dps are an abstract unit of measurement based on a screen displaying 160 dpi. This means that a widget with a width of 320 dp will always be 2'' wide regardless of screen density. When it comes to the actual physical dimensions of a screen, this can be managed with a variety of layout types, libraries, and properties such as weight and gravity, but...

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