从一个活动多asynctasks [英] Multiple asynctasks from one Activity

问题描述

我想获得的数据来自3个不同的休息单个活动调用。我怎样才能做到这一点使用asynctasks。我如何统筹3个任务？

I want to get data from 3 different rest calls in a single activity. How can I do this using asynctasks. How can I co-ordinate 3 tasks?

更新：我想要做的就是等待所有的三个任务，以更新UI之前完成

Update: What I want to do is to wait for all the three tasks to complete before updating UI.

推荐答案

您可以参考这篇文章

在同一时间运行多个AsyncTasks - ？不可能

AsyncTask的使用线程池从doInBackground运行的东西（）。问题是最初（早在Android操作系统版本）中的池大小只是1，这意味着没有并行计算的一堆AsyncTasks的。但是后来它们固定的和现在的大小是5，所以至多5 AsyncTasks可以同时运行。不幸的是我不记得确切在他们改变什么版本。

AsyncTask uses a thread pool pattern for running the stuff from doInBackground(). The issue is initially (in early Android OS versions) the pool size was just 1, meaning no parallel computations for a bunch of AsyncTasks. But later they fixed that and now the size is 5, so at most 5 AsyncTasks can run simultaneously. Unfortunately I don't remember in what version exactly they changed that.

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