Checking internet connectivity in android

Question

I'm trying to check internet connectivity on recieving sms. But my service is force closing while changing internet state. E.g If I've enabled wifi its working fine but when I disable wifi app becomes closed with error. I'm using this code in onReceive function. Here is the code.

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

     NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
     boolean isConnected = activeNetwork != null && activeNetwork.isConnectedOrConnecting();

     if(isConnected == true) { 
            Toast.makeText(context, "Internet", Toast.LENGTH_LONG).show();
     }
     else if(isConnected == false){
            Toast.makeText(context, "No Internet", Toast.LENGTH_LONG).show();
     }

http://www.androidhive.info/2012/07/android-detect-internet-connection-status/ — IntelliJ Amiya, Oct 18 '15 at 12:56

score 3 · Answer 1 · answered Dec 19 '15 at 08:38

Try to use this code

add permission in manifest file

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


public class ConnectionDetector {
public static boolean isConnectingToInternet(Context context){
    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;
 }
}

call

  ConnectionDetector.isConnectingToInternet(LoginActivity.this);

score 0 · Answer 2 · answered Oct 18 '15 at 12:21

0

try to use this code

    WifiManager wifiManager = (WifiManager)this.context.getSystemService(Context.WIFI_SERVICE);
    wifiManager.setWifiEnabled(status);

   Also add Permission in Manifest File :
   <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

answered Oct 18 '15 at 12:21

Naveen

814
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9
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It will only detect wifi but not internet. Am I right? – Hassaan Rana Oct 18 '15 at 14:19

score 0 · Answer 3 · answered Oct 18 '15 at 12:58

0

You can add Below

 <!-- Internet Permissions -->
<uses-permission android:name="android.permission.INTERNET" />

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

<!-- Network State Permissions -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

Please Check this Demo

Android Detect Internet Connection Status

answered Oct 18 '15 at 12:58

IntelliJ Amiya

74,896
15
165
198

1

It does not help. ` ` – Hassaan Rana Oct 18 '15 at 14:16
Its perfect permission – IntelliJ Amiya Oct 18 '15 at 14:16
But its not solving the issue. – Hassaan Rana Oct 18 '15 at 14:18

score 0 · Answer 4 · answered Dec 19 '15 at 05:47

i use this code
Create new class, try

public class Network{
    public static boolean isNetworkAvailable(Context context) {
        ConnectivityManager connectivityManager
                = (ConnectivityManager)  context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
        return activeNetworkInfo != null && activeNetworkInfo.isConnected();
    }
}

call

Network.isNetworkAvailable(Activity Name.this);

and use this permissions

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

Checking internet connectivity in android

4 Answers4