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【Android开发Wiki】进阶篇数据传输时避免浪费电量-Transferring Data Without Draining the Battery(三):

阅读更多
减少下载的最基本方法就是只下载你需要的。在数据方面,这意味着实现 REST APIs,通过
API 你可以指定查询条件(使用参数,比如最近更新的时间)来来限制返回的数据。
同样,当我们下载图片的时候,好的做法是在服务器端减少图片的尺寸,而不是下载完整尺
寸的图片,然后再在客户端裁剪图片的尺寸。
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