Naham Soft Naham Soft - 1 year ago 75
PHP Question

how to listen to change in internet connection android studio?

I already create an android app which use the web services to send and retrieve json data

but the problem when I make a request while the device in online it works fine but when the device go offline the app stuck and print Null Exception error

is there a way to listen to the internet connection and ignore the process if possible

please help. Thanks so much


before request the web service call this method

private boolean isOnline() {
    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo NInfo = cm.getActiveNetworkInfo();

    if (NInfo != null && NInfo.isConnectedOrConnecting())
        return true;
        return false;

 // request the service 
 // but make sure that U have surrounded the calling web-service by try and catch
     // here make your request when the connection go offline the app will    catch   the error and ignore the process 
}catch (Exception e) {

add this permission

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