(Building a High Quality Android Application: 50 Tips for Android Development is the only work that explains Android application development from the perspective of development skills, aiming to rapidly improve the developer's ability to manage various difficult problems, and then build a high-quality Android application. The translators are all experienced Android development engineers. The author devotes himself to summarizing 50 classic problems encountered in Android application development. These problems involve layout, animation, view, tool, list, adapter, effective library, interaction with other programming languages, data base, construction tool, code reuse, prevention of code fragmentation, etc. This book gives the management plan of difficult problems in the way of "problem management plan", and analyzes these effective programming skills and modes in depth with the example code, aiming to help developers improve the programming efficiency, improve the code quality, and create high-quality Android applications. This document includes the following annexes:)