问题描述
previously人们可以使用：
Previously one could use:
ConnectivityManager.getBackgroundDataSetting();
要检查用户是否有后台数据设置= TRUE。现在这种方法去precated：
to check if the user had background data setting = true. This method is now deprecated:
http://developer.android.com/reference/android/net/NetworkInfo.html
文档说使用方法：
The docs say to use:
ConnectivityManager.getActiveNetworkInfo();
相反，它返回一个NetworkInfo对象，但什么是在的NetworkInfo等价检查呢？
instead, which returns a NetworkInfo object, but what's the equivalent check in NetworkInfo then?
感谢
推荐答案
如果 getActiveNetworkInfo（）是空，你没有网络连接，或者是因为该设备没有网络连接，或者是因为用户的设置（例如带宽上限）prevent您的应用具有网络连接。
If getActiveNetworkInfo() is null, you do not have a network connection, either because the device does not have a network connection, or because user settings (e.g., bandwidth caps) prevent your app from having a network connection.
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