Resource Management

Designing and building applications for small mobile devices such as the phone requires you to be aware of the resource limitations inherent in these types of devices. You should aim to make your application behave as a “good citizen” on the phone by optimizing performance and resource usage to provide the best experience for users and by avoiding any behavior that would negatively affect other features and applications on the phone. You must pay particular attention to
allocating and releasing resources you use, minimizing battery drain, and maximizing performance on lower-power processors, such as those used in mobile phones. You should also understand how to take full advantage of the graphics processor in the device. For more information, read the section “Resource Management and Performance” later, “Using Services on the Phone.”