Question

I’m trying to check if a simple connection is available on my honeycomb app. I’ve tried 2 different versions of the function:

    public boolean networkAvailable() {
     ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
     return cm.getActiveNetworkInfo().isConnectedOrConnecting();
    }

and

    private boolean networkAvailable(){
    ConnectivityManager connectionManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetwork = connectionManager.getActiveNetworkInfo();

    return activeNetwork != null;
}

Neither of these work on my Honeycomb tablet though, they crash wherever I try to call them. Is there a particular way of doing this on 3.2 or…what am I missing?

Answer 1

This should work. You can even differentiate the type of network available. Make sure you have the following permissions declared in the manifest.

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

public void checkkStatus()
 {
 final ConnectivityManager connMgr = (ConnectivityManager)
 this.getSystemService(Context.CONNECTIVITY_SERVICE);

 final android.net.NetworkInfo wifi =
 connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

 final android.net.NetworkInfo mobile =
 connMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);

 if( wifi.isAvailable() ){
 Toast.makeText(this, "Wifi" , Toast.LENGTH_LONG).show();
 }
 else if( mobile.isAvailable() ){
 Toast.makeText(this, "Mobile 3G " , Toast.LENGTH_LONG).show();
 }
 else
 {Toast.makeText(this, "No Network " , Toast.LENGTH_LONG).show();}
 }