I m writing a simple downloader app which has two activities: SearchActivity: shows a list of items you can download given a query. pressing an item should start downloading the item, but stay in the SearchActivity. Pressing an item currently runs an AsyncTask to handle the downloading logic
下载 活动:显示目前下载的项目和进展清单 每个项目的律师协会(百分比)。
除了“进步”之外,我还确定了一切。 我不禁要问,怎样才能正确更新下载活动的“进步银行”。 在“AyncTask”下载中,在“搜索行动”范围内,如果对“下载行动”进行观察,我如何更新各自在下载方面取得的进展。
您可能为下载目的使用service部分。 这将使你能够从该处内部管理AsyncTasks(或仅仅是单独的胎面)。 其后,任何活动均可检索特定下载情况,在服务对象上采用某种方法(由您撰写),实际上,服务对象正在管理所有下载。 奥赫,同样,你可能希望开始下载。
BTW为了从活动范围内检索服务对象,需要首先对服务进行约束,然后使用IBinder界面获得试射。 可在
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