Android系统图库模块的选择管理性能优化方法

摘要

For a better experience, Gallery used a special design. It works in only one activity and with-out activity jump. Also it expanded GLSurfaceView to display, reload data with multi-thread and cache more data. It loads current used data with priority keep browser smoothly. However, there are still some perfor-mance problems. Oneisthelackofsupportfornewfeaturesinoriginal design,andanotheristhatnewlydevel-opedcodeintroducedperformanceoverhead.Inthisarticle,weanalyzeandexplainhowtoensuretheperformance of gallery based on sourcecodeandcustomizationrequirements.%为了提供良好的用户体验，图库应用使用了特殊的设计。浏览过程没有Activity跳转，界面展示基于GLSurfaceView扩展，数据加载使用多线程和缓存技术相结合，优先加载当前使用的数据信息，保证界面刷新流畅。尽管如此，开发过程中仍会遇到诸多性能问题，一方面是原有系统对新功能的支持不足导致性能难以提升，另一方面是新曾代码方案缺陷。基于图库代码和定制需求相结合，对图库中选择管理组件进行分析，讲解如何从方案上来保证性能，提供良好的用户体验。