internet-connection

问题 if you want to check internet connection in android there is a lot of ways to do that for example: public boolean isConnectingToInternet(){ ConnectivityManager connectivity = (ConnectivityManager) _context.getSystemService(Context.CONNECTIVITY_SERVICE); if (connectivity != null) { NetworkInfo[] info = connectivity.getAllNetworkInfo(); if (info != null) for (int i = 0; i < info.length; i++) if (info[i].getState() == NetworkInfo.State.CONNECTED) { return true; } } return false; }

问题 Similar questions to this one are all over the net, but I failed to solve my problem even after consulting them :( I am trying sudo apt-get update on a kubuntu 14.04 laptop, and I get a ton of W: Failed to fetch http://... Something wicked happened resolving ... (-5 - No address associated with hostname) messages Also, ping google.com gives ping: unknown host google.com I can however connect to the Internet through Firefox... It is probably related to some proxy issue I saw suggestions to add

问题 How do you check if an Android device is connected to an internet connection? Currently, I am using the code below: ConnectivityManager connectivityManager = context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo(); boolean isConnectedToNetwork = (networkInfo != null && networkInfo.isConnected()); However, the problem with the code above is that it only checks if the device is connected to a network. It does not check if an

问题 I am working on Xamarin Android Application.Before proceed to my next fragment I want to check Internet Connection and inform user about it ? How can i implement that ?And how to refresh whole fragment after user switch-on the internet? Any advice or suggestion will be appreciated ! 回答1: Try this : NetworkStatus internetStatus = Reachability.InternetConnectionStatus(); if(!Reachability.IsHostReachable("http://google.com")) { // Put alternative content/message here } else { // Put Internet

问题 If there is no internet connection and you start for example the safari app with Ipad or Iphone, a popup appears saying: "Choose wireless network" Is there a way to force this popup to show up in my app when I want to? The problem is, I have a button in my app which connects the user to facebook. After pressing the button the safari browser opens and shows the facebook authorization page. If there is no internet connection this popup appears, but there is no way to turn back to the app from

问题 i want to check internet connection in my application.but, its not displaying properly. i am using this code for internet connection: NetworkInterface.GetIsNetworkAvailable(); in this code always return true value.if net available or not available return true only. if anyone know tell me idea to do this. thanks. 回答1: Check NetworkInterfaceType . If Internet is available then It should be other than None return (Microsoft.Phone.Net.NetworkInformation.NetworkInterface.NetworkInterfaceType !=

问题 I am new to Iphone app development so i am having some couple of questions. Help me out on this. 1) How, all the application on iphone will get to know that, there is internet connection available when user switches on wifi button or Cellular button in settings? 2) How to differentiated between wifi connection and cellular connection? 3) Are there any Broadcast receiver mechanism in iphone similar to android concepts as well? I had googled many links for internet connectivity, and got to know

问题 Does Google Chart API need internet connection on both server and client side? 回答1: Yes. It's a web service. 来源： https://stackoverflow.com/questions/3316445/google-chart-api-internet-connection-requirement

问题 i am checking networking connection using the below code: public static boolean haveInternet(Context ctx) { NetworkInfo info = (NetworkInfo) ((ConnectivityManager) ctx.getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo(); if (info == null || !info.isConnected()) { return false; // no connection } return true; // true if having connection } Now, on "no connection" , i am launching "Wireless settings" dialog using the below code: context.startActivity(new Intent(Settings

问题 this is my class that checks if the device is connected to the internet. import android.app.Activity; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.util.Log; import java.io.IOException; import java.net.HttpURLConnection; import java.net.URL; public class ConnectionDetector { private Context _context; public ConnectionDetector(Context context) { this._context = context; } public boolean isConnectingToInternet() { if