how to check for internet connection in android code example
Example 1: Android check internet
/**
* @author Pratik Butani
*/
public class InternetConnection {
/**
* CHECK WHETHER INTERNET CONNECTION IS AVAILABLE OR NOT
*/
public static boolean checkConnection(Context context) {
final ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connMgr != null) {
NetworkInfo activeNetworkInfo = connMgr.getActiveNetworkInfo();
if (activeNetworkInfo != null) { // connected to the internet
// connected to the mobile provider's data plan
if (activeNetworkInfo.getType() == ConnectivityManager.TYPE_WIFI) {
// connected to wifi
return true;
} else return activeNetworkInfo.getType() == ConnectivityManager.TYPE_MOBILE;
}
}
return false;
}
}
Example 2: Android check internet
new CheckNetworkConnection(this, new CheckNetworkConnection.OnConnectionCallback() {
@Override
public void onConnectionSuccess() {
Toast.makeText(context, "onSuccess()", toast.LENGTH_SHORT).show();
}
@Override
public void onConnectionFail(String msg) {
Toast.makeText(context, "onFail()", toast.LENGTH_SHORT).show();
}
}).execute();
Example 3: Android check internet
public class CheckNetworkConnection extends AsyncTask < Void, Void, Boolean > {
private OnConnectionCallback onConnectionCallback;
private Context context;
public CheckNetworkConnection(Context con, OnConnectionCallback onConnectionCallback) {
super();
this.onConnectionCallback = onConnectionCallback;
this.context = con;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected Boolean doInBackground(Void...params) {
if (context == null)
return false;
boolean isConnected = new NetWorkInfoUtility().isNetWorkAvailableNow(context);
return isConnected;
}
@Override
protected void onPostExecute(Boolean b) {
super.onPostExecute(b);
if (b) {
onConnectionCallback.onConnectionSuccess();
} else {
String msg = "No Internet Connection";
if (context == null)
msg = "Context is null";
onConnectionCallback.onConnectionFail(msg);
}
}
public interface OnConnectionCallback {
void onConnectionSuccess();
void onConnectionFail(String errorMsg);
}
}