Alert Dialog Freeze My App

Here there is the code that check the internet connection and then if the isconnected is false show a message in a allert dialog. The problem is that if isconnected is true and (i

Solution 1:

You do not need AsyncTask to check the internet connection, so please keep it simple.

I think that your onClick method should looks like this:

@OverridepublicvoidonClick(View v) {
      if (isConnectionAvailable(context)) {
          // connected
      } else {
          // not connected
      }
};

publicstaticbooleanisConnectionAvailable(Context context) {
    ConnectivityManagermanager= (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfonetworkInfo= manager.getActiveNetworkInfo();
    return networkInfo != null && networkInfo.isAvailable() && networkInfo.isConnected();
}

Do not forget the ACCESS_NETWORK_STATE and INTERNET permissions in your Manifest.

Solution 2:

Try with this...

((Button)findViewById(R.id.listabutton)).setOnClickListener(newView.OnClickListener() {
        @OverridepublicvoidonClick(View v) {

        if(isDeviceOnline(context)){
          //do something.
        }else{
          AlertDialog.Builder dialog= newAlertDialog.Builder(context);
          dialog.setMessage("Not connected");
          dialog.setTitle("Error!");
          dialog.setPositiveButton(.....);
          dialog.create();
          dialog.show();
        } 

    }
}


publicbooleanisDeviceOnline(Context context) {
    ConnectivityManagermanager= (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfonetworkInfo= manager.getActiveNetworkInfo();
    return networkInfo != null && networkInfo.isAvailable() && networkInfo.isConnected();
}

And yes, add ACCESS_NETWORK_STATE and INTERNET permissions in the manifest file