当网络访问下降时,如何停止运行进度对话框?

发布于 2024-10-06 03:27:51 字数 291 浏览 3 评论 0原文

我有一个应用程序可以访问网站来获取 XML 进行处理。这个过程是在一个单独的线程中,当我有 3G 或 WiFi 可用时,它可以正常工作。我还有在实际运行线程之前检查信号的代码,因此它不会在无连接的情况下尝试。

在测试过程中,我走进一栋屏蔽了所有信号的建筑物,因此当我在外面并且有信号时进程就开始了,但是当我进入内部时信号下降并且我的进度对话框继续运行,我不得不手动关闭程序以使其恢复。

如果发生这种情况,是否有一个好的方法来处理这个问题,而不需要用户手动关闭应用程序?

I have an app that goes out to a website to grab XML for processing. This process is in a separate thread and works fine when I have 3G or WiFi available. I also have code that checks signal before actually running the thread so it won't attempt with no connectivity.

During my testing, I walked into a building that blocked all signal so the process started while I was outside and had signal but when I went inside the signal dropped and my Progress dialog just kept running, I had to manually shut the program down to get it to recover.

Is there a good way to deal with this without requiring the user to manually shut down the app if this situation happens?

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╄→承喏 2024-10-13 03:27:51

向您的 HttpClient 提供超时参数并捕获 SocketTimeOutException

HttpParams httpParams=new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, 5000);
HttpConnectionParams.setSoTimeout(httpParams, 5000);
HttpClient httpClient=new DefaultHttpClient(httpParams);
try {
    httpClient.execute(new HttpGet("http://myserver.xml"));
}
    catch(SocketTimeoutException ex){
        //Perform Timeout i.e. cancle progress dialog
    }
    catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

Supply timeout parameters to your HttpClientand catch SocketTimeOutException

HttpParams httpParams=new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, 5000);
HttpConnectionParams.setSoTimeout(httpParams, 5000);
HttpClient httpClient=new DefaultHttpClient(httpParams);
try {
    httpClient.execute(new HttpGet("http://myserver.xml"));
}
    catch(SocketTimeoutException ex){
        //Perform Timeout i.e. cancle progress dialog
    }
    catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
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