Android 需要一个示例来展示如何执行异步 HTTP 请求
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Need an example showing how to do async HTTP requests
提问by Eno
Im using a web service, so I want to use an async thread for the HTTP authentication request and another thread later to make additional service requests while my main thread runs.
我正在使用 Web 服务，因此我想使用异步线程进行 HTTP 身份验证请求，稍后使用另一个线程在主线程运行时发出其他服务请求。
Would like to see a good example of how to do this and how to show busy messages somehow in main app. How does the main app know when the thread finished? And what if my thread encounters exceptions, how do I deal with that?
想看到一个很好的例子，说明如何做到这一点以及如何在主应用程序中以某种方式显示繁忙的消息。主应用程序如何知道线程何时完成？如果我的线程遇到异常怎么办？
HTTP requests are sent later, use the same cookies setup up by the first auth request, so will the later requests pick up the same cookies and just work?
HTTP 请求稍后发送，使用第一个身份验证请求设置的相同 cookie，那么后面的请求会选择相同的 cookie 并正常工作吗？
采纳答案by tbruyelle
回答by Janusz
Even better look here for the async part: Is there an accepted best-practice on making asynchronous HTTP requests in Android?
更好地查看异步部分：在 Android 中进行异步 HTTP 请求是否有公认的最佳实践？
回答by koush
AndroidAsync library I wrote to handle this automatically, it will run in the background and reinvoke onto the UI thread:
我编写的 AndroidAsync 库用于自动处理此问题，它将在后台运行并重新调用 UI 线程：
https://github.com/koush/AndroidAsync
https://github.com/koush/AndroidAsync
// url is the URL to download. The callback will be invoked on the UI thread
// once the download is complete.
AsyncHttpClient.getDefaultInstance().get(url, new AsyncHttpClient.StringCallback() {
// Callback is invoked with any exceptions/errors, and the result, if available.
@Override
public void onCompleted(Exception e, String result) {
if (e != null) {
e.printStackTrace();
return;
}
System.out.println("I got a string: " + result);
}
});
