ANDROID Show a dialog when the Internet/GPS loses connectivity or is not connected

Question

[EDITED]

I want to show a Splash Screen / dialog when the Internet or GPS is down or not connected so the user can\'t use the app until the connection is good again.

Answer 1

Try below solution

STEP 1:

Make a Java Class named NetworkStatus

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

public class NetworkStatus 
{
    Context context;

    public NetworkStatus(Context context) 
    {
        this.context = context;
    }

    public boolean isNetworkOnline() 
    {
        boolean status = false;

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

            NetworkInfo netInfo = cm.getNetworkInfo(0);

            if (netInfo != null && netInfo.getState() == NetworkInfo.State.CONNECTED) 
            {
                status = true;
            } 
            else 
            {
                netInfo = cm.getNetworkInfo(1);

                if (netInfo != null && netInfo.getState() == NetworkInfo.State.CONNECTED) 
                {
                    status = true;
                }
            }
        } 
        catch (Exception e) 
        {
            e.printStackTrace();

            return false;
        }

        return status;
    }

}

STEP 2:

Make another Class named AlertDialogManager

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.provider.Settings;
import com.lmkt.wfm.R;
import com.lmkt.wfm.activities.ActivityMainScreen;

public class AlertDialogManager 
{
    Context context;

    public AlertDialogManager(Context context) 
    {
        this.context = context;
    }

    public void showAlertDialog(String title, final String message, final Boolean status) 
    {
        AlertDialog.Builder alertDialog = new AlertDialog.Builder(context);

        alertDialog.setTitle(title);

        alertDialog.setMessage(message);

        if(status != null)
        {
            alertDialog.setIcon((status) ? R.drawable.success : R.drawable.fail);
        }

        alertDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() 
        {
            public void onClick(DialogInterface dialog, int which) 
            {   
                if(message.contains("You do not have Internet Connection"))
                {
                      ((Activity) context).finish();
                }

                dialog.dismiss();
            }
        });

        alertDialog.show();
    }
}

STEP 3: Usage from your Splash Activity:

AlertDialogManager alert;

NetworkStatus ns;

ns = new NetworkStatus(context);

if(!(ns.isNetworkOnline()))
        {
            alert = new AlertDialogManager(context);

            alert.showAlertDialog("Internet Connection!", "You do not have Internet Connection. "
                    + "Please connect to the "
                    + "Internet to sync Data From Server...", false);
        }