Android - Check Internet Connection

check.java

package com.animacoder.akcaykentportali;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.view.Menu;
import android.widget.Toast;





public class MainActivity extends Activity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ConnectivityManager connMgr = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();

        if (networkInfo != null && networkInfo.isConnected())
        {
            Toast.makeText(MainActivity.this,"Baglanti basarili",2000).show();

            Thread t1 = new Thread()
            {
                public void run()
                {
                    try
                    {
                        sleep(1000);
                        Intent intent = new Intent(MainActivity.this, DashboardActivity.class);
                        startActivity(intent);
                    }
                    catch (InterruptedException e){}
                    finally{finish();}
                }
            };
            t1.start();

        }
        else
        {
            Toast.makeText(MainActivity.this,"Lutfen internet baglantinizi kontrol edin.",2000).show();
            Toast.makeText(MainActivity.this,"Kapatılıyor...",2000).show();

            Thread t2 = new Thread()
            {
                public void run()
                {
                    try
                    {
                        sleep(2000);
                        finish();
                    }
                    catch (InterruptedException e){}
                    finally{finish();}
                }
            };
            t2.start();

        }









    };







    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}