ببین این کد خوبه؟
کد پیاچپی:
package com.khayyami.league;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class Menu<TaskStackBuilder> extends Activity {
/** Called when the activity is first created. */
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
new NetCheck().execute();
}
public void ShowAlertDialog() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(Menu.this);
alertDialog.setTitle(R.string.title);
alertDialog.setMessage(R.string.message);
alertDialog.setCancelable(false);
//Setting Positive "Yes" Button
alertDialog.setPositiveButton(R.string.yes,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
new NetCheck().execute();
}
});
//Setting Negative "NO" Button
alertDialog.setNegativeButton(R.string.no,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Write your code here to invoke NO event
finish();
}
});
//Showing Alert Message
alertDialog.show();
}
/**
* Async Task to check whether internet connection is working.
**/
private class NetCheck extends AsyncTask<String,String,Boolean>
{
private ProgressDialog nDialog;
@Override
protected void onPreExecute(){
super.onPreExecute();
nDialog = new ProgressDialog(Menu.this);
nDialog.setTitle("در حال بررسی اتصال به اینترنت");
nDialog.setMessage("لطفا کمی صبر کنید");
nDialog.setIndeterminate(false);
nDialog.setCancelable(false);
nDialog.show();
}
/**
* Gets current device state and checks for working internet connection by trying Google.
**/
@Override
protected Boolean doInBackground(String... args){
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
if (netInfo != null && netInfo.isConnected()) {
try {
URL url = new URL("http://www.google.com");
HttpURLConnection urlc = (HttpURLConnection) url.openConnection();
urlc.setConnectTimeout(3000);
urlc.connect();
if (urlc.getResponseCode() == 200) {
return true;
}
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return false;
}
@Override
protected void onPostExecute(Boolean th){
if(th == true){
nDialog.dismiss();
Toast.makeText(getApplicationContext(), "برنامه با موفقیت به اینترنت وصل شد ! ", Toast.LENGTH_SHORT).show();
// new GetData().execute();
}
else{
nDialog.dismiss();
ShowAlertDialog();
}
;
{
}
}
}
