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

STEP 1: Open AndroidManifest.xml and add the broadcast receiver.

        
            
            
            
        
    `

STEP 2: create activity with dialog theme:

STEP 3: Make a BroadcastReceiver Class named InternetConnectorReceiver

public class InternetConnectorReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

    if (intent.getAction().equalsIgnoreCase(Intent.ACTION_BOOT_COMPLETED) ||
            intent.getAction().equalsIgnoreCase("android.net.conn.CONNECTIVITY_CHANGE")) {
        Intent checkIntent = new Intent(context, ConnectivityCheck.class);
        context.startService(checkIntent);
    }
}}

STEP 4: Make another service class named ConnectivityCheck :

public class ConnectivityCheck extends Service {

@Override
public void onCreate() {
    super.onCreate();
    if (!checkConnection()) {
        Toast.makeText(context, "off", Toast.LENGTH_LONG).show();
        Intent dialogIntent = new Intent(this, ActivityDialogInternet.class);
        dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(dialogIntent);
    }
    stopSelf();
}

@Nullable
@Override
public IBinder onBind(Intent intent) {
    return null;
}

private boolean checkConnection() {
    Log.i("wudfuyf", "checking started!!!!!!!!!!!!!!!!!!");
    ConnectivityManager cm =
            (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

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

}}

STEP 5: create a activity called ActivityDialogInternet

public class ActivityDialogInternet extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_dialog_internet);
}}

STEP 6: When internet connection is turned off ActivityDialogInternet called and show the dialog: