Android:While running in my Android device it's working. But I can't figure > out why the same thing is not happening in my emulator

Question

Possible Duplicate:
Checking internet connection on android

In my application I want to check internet connection. If the device is not connected to internet I want to close my app. So I use this method for checking the internet connection.

public boolean isDeviceConnectedToInternet() {
        ConnectivityManager cm =
            (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo netInfo = cm.getActiveNetworkInfo();
        if (netInfo != null && netInfo.isConnectedOrConnecting()) {
            return true;
        }
        return false;
    }

User permissions are set:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

I turned off my wifi and running the app , I got true in Log cat.

While running in my Android device it's working. But I can't figure out why the same thing is not happening in my emulator.

[Have a look at this](http://stackoverflow.com/a/5911553/940096) — Praveenkumar, Oct 01 '12 at 06:50
look at this http://rajareddypolamreddy.blogspot.in/2012/04/checking-for-internet-availability-in.html. — RajaReddy PolamReddy, Oct 01 '12 at 06:51
Better remove your internet cable from your PC(CPU) and try to run. Now, it will give false — Praveenkumar, Oct 01 '12 at 06:51
@Keyser If it is duplicate then there is an option to close the question as duplicate. — Dharmendra, Oct 01 '12 at 07:11
@Dharmendra Yes but that option requires a link to the/a duplicate. I don't always have the time to do the job for them. — keyser, Oct 01 '12 at 07:12
@Keyser Actually when you click on the option possible duplicate then it will automatically populate similar questions so you do not require much effort. — Dharmendra, Oct 01 '12 at 07:18
@Dharmendra It will try. Still not required of me in any way. I assure you I'm well aware of the flagging options. — keyser, Oct 01 '12 at 07:21
@Dharmendra and Keyser, It may be the duplicate question but I want the answer for why my emulator cant check the connection , but my android device did. — Sridhar, Oct 01 '12 at 07:21

score 2 · Answer 1 · answered Oct 01 '12 at 06:50

2

 public void checkConnection() throws NoInternetException {
    boolean connected = false;

    ConnectivityManager cm = 
            (ConnectivityManager) 
            context.getSystemService(Context.CONNECTIVITY_SERVICE);

    if (cm != null) {
        NetworkInfo[] netInfo = cm.getAllNetworkInfo();

        for (NetworkInfo ni : netInfo) {
            if ( ni.isConnected() && ni.isAvailable() ) {
                connected = true;
            }
        }
    }
    if (! connected) {
        throw new NoInternetException("NO INTERNET CONNECTION");
    }
}

Here I'm throwing exception, if there is no network. Anyway you can return varuable connected

answered Oct 01 '12 at 06:50

JunR

202
1
6

I turned off my wifi connection and run the app still i got true in Logcat – Sridhar Oct 01 '12 at 06:59
I have a webview in my app, here web page not available window opens – Sridhar Oct 01 '12 at 07:00
Sridhar, try to use ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.WIFI_SERVICE); – JunR Oct 01 '12 at 07:06
JunR, Hey While running the app in my android device it worked, But in my emulator it doesnt make sense – Sridhar Oct 01 '12 at 07:15
Sridhar, maybe because there is no wifi in emulator. I don't see it in adb virtual device preferences – JunR Oct 01 '12 at 07:21
then what should I do for making my emulator also check connection – Sridhar Oct 01 '12 at 07:24

score 1 · Answer 2 · answered Oct 01 '12 at 06:53

1

A Simple Code for Checking Internet Connection.

ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();

String status = netInfo.getState().toString();
if (status.equals("CONNECTED")) 
{
    //DO you work or return your flag
} 
else 
{
    Log.e("error", "No connection available ");
}

answered Oct 01 '12 at 06:53

Chirag

56,621
29
151
198

I turned off my wifi connection and run the app still i got true in Logcat. I have a webview in my app, here web page not available window opens – – Sridhar Oct 01 '12 at 07:04

Android:While running in my Android device it's working. But I can't figure > out why the same thing is not happening in my emulator

2 Answers2