Implementing a cool idea is a great start toward an app that delights users, but it's just the beginning. The next step is maximizing your app's performance. For example, users want apps that:
Use power sparingly.省电Start up quickly.快速启动Respond quickly to user interaction.快速响应用户This section provides you with the know-how you need in order to make your apps not only cool, but also performant. Read on to discover how to develop apps that are
power-thrifty, responsive, efficient, and well-behaved.
省电，响应，有效，表现良好
