评估连接速度的最佳方法-Bestwaytoevaluateconnectionspeed

38  

Facebook released a library for this:

Facebook为此发布了一个库：

https://github.com/facebook/network-connection-class

https://github.com/facebook/network-connection-class

this wasn't existing in 2011..

这在2011年不存在..

4  

why not try to change your view of things. Try to flow with your users. say your user wishes to download 128 kbit quality song. you start the download , WHILE downloading you make an average download time, take a few seconds for this average to stabilize, and if it's below certain value make a pop up to tell the user that his connection is too slow for the current bandwidth and ask him if to lessen the quality or to keep downloading slowly.

为什么不试着改变你对事物的看法。尝试与您的用户一起流动。说你的用户希望下载128 kbit的优质歌曲。你开始下载，下载你平均下载时间，花几秒钟让这个平均值稳定下来，如果它低于一定值，弹出告诉用户他的连接速度太慢，不能满足当前的带宽要求他是否要降低质量或继续慢慢下载。

This will:

这会：

1. let the users the option to always assume they can get the best quality media.
2. 让用户可以选择始终假设他们可以获得最优质的媒体。
3. let u do your check in runtime and change the quality accordingly while downloading without the need to pre check.
4. 让你在运行时检查，并在下载时相应地改变质量而无需预先检查。
5. keeps your app simple to users.
6. 让您的应用程序对用户简单。

I know i'm not answering your specific requirement, i'm just offering a different view.

我知道我没有回答你的具体要求，我只是提供了一个不同的观点。

4  

protected String doInBackground(String... urls) {
    String respOnse= "";

    startTime = System.currentTimeMillis();
    for (String url : urls) {
        DefaultHttpClient client = new DefaultHttpClient();
        HttpGet httpGet = new HttpGet(url);
        try {

            HttpResponse execute = client.execute(httpGet);
            InputStream cOntent= execute.getEntity().getContent();


            BufferedReader buffer = new BufferedReader(
                    new InputStreamReader(content));
            String s = "";
            while ((s = buffer.readLine()) != null) {
                response += s;
            }
            endTime = System.currentTimeMillis();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    return response;
}

@Override
protected void onPostExecute(String result) {
    // TODO Auto-generated method stub


    long dataSize = result.length() / 1024;
    takenTime = endTime - startTime;
    long s = takenTime / 1000;
    double speed = dataSize / s;

    Toast.makeText(context, "" + s + "kbps", Toast.LENGTH_SHORT).show();
}

2  

Detect network connection type on Android

检测Android上的网络连接类型

You can check all available options here: http://developer.android.com/reference/android/telephony/TelephonyManager.html

您可以在此处查看所有可用选项：http：//developer.android.com/reference/android/telephony/TelephonyManager.html

This can fix the mobile network type but can't help you with the Wifi speed, you should code it by downloading something from a server you know and calculate the time.

这可以修复移动网络类型，但无法帮助您获得Wifi速度，您应该通过从您知道的服务器下载内容并计算时间来对其进行编码。

I hope it helps.

我希望它有所帮助。