Wi-Fiスキャン結果をクリック可能なボタンとして表示

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クリックするとwifi結果を表示するアプリを作成するにはどうすればいいですか？クリックしてWi-Fiネットワークに接続しますか？Wi-Fiスキャン結果をクリック可能なボタンとして表示

以下のコードは、SSIDをリストとして表示しますが、クリックできません。

package com.example.amit.ak504; 
    import java.util.List; 
    import android.app.Activity; 
    import android.content.BroadcastReceiver; 
    import android.content.Context; 
    import android.content.Intent; 
    import android.content.IntentFilter; 
    import android.net.wifi.ScanResult; 
    import android.net.wifi.WifiManager; 
    import android.os.Bundle; 
    import android.support.v7.app.ActionBar; 
    import android.support.v7.app.AppCompatActivity; 
    import android.view.Menu; 
    import android.view.MenuItem; 
    import android.widget.Button; 
    import android.widget.TextView; 
    import android.widget.Toast; 

    public class MainActivity extends AppCompatActivity { 
     private static int LENGTH_SHORT=600; 
     TextView mainText; 
     WifiManager mainWifi; 
     WifiReceiver receiverWifi; 
     List<ScanResult> wifiList;// this is an object of List 
     StringBuilder sb = new StringBuilder(); 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    // setupActionBar(); 
    setContentView(R.layout.activity_main); 
    ActionBar actionBar = getSupportActionBar(); 
    actionBar.setDisplayHomeAsUpEnabled(true); 
    mainText = (TextView) findViewById(R.id.tv1); 
    mainWifi = (WifiManager) getSystemService(Context.WIFI_SERVICE); 
    if (mainWifi.isWifiEnabled() == false) 
    { 
     // If wifi disabled then enable it 
     Toast.makeText(getApplicationContext(), "wifi is disabled..making it 
    enabled",Toast.LENGTH_LONG).show(); 

     mainWifi.setWifiEnabled(true); 
    } 
    receiverWifi = new WifiReceiver(); 
    registerReceiver(receiverWifi, new 
    IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)); 
    mainWifi.startScan(); 
    mainText.setText("Starting Scan..."); 
} 
// private void setupActionBar() { 

// if (actionBar != null) { 
     // Show the Up button in the action bar. 
    //  actionBar.setDisplayHomeAsUpEnabled(true); 
// } 
//} 
public ActionBar getSupportActionBar() { 
    return getDelegate().getSupportActionBar(); 
} 
public boolean onCreateOptionsMenu(Menu menu) { 
    menu.add(0, 0, 0, "Refresh");//side menu 
    return super.onCreateOptionsMenu(menu); 
} 

public boolean onOptionsItemSelected(MenuItem item) { 
    mainWifi.startScan(); 
    mainText.setText("Starting Scan"); 
    return super.onOptionsItemSelected(item); 
} 

protected void onPause() { 
    unregisterReceiver(receiverWifi); 
    super.onPause(); 
} 

protected void onResume() { 
    registerReceiver(receiverWifi, new 
     IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)); 
    super.onResume(); 
} 

// Broadcast receiver class called its receive method 
// when number of wifi connections changed 

class WifiReceiver extends BroadcastReceiver { 



    // This method call when number of wifi connections changed 
    public void onReceive(Context c, Intent intent) 
    { 
     sb = new StringBuilder(); 
     wifiList = mainWifi.getScanResults(); 
     //why getScanResult is stored into a list. 
     //note that wifilist was a object of List<ScanResult> 
     sb.append("\nNumber Of Wifi connections :"+wifiList.size()+"\n\n"); 
Button bt1=(Button)findViewById(R.id.button); 

     for(int i = 0; i < wifiList.size(); i++){ 


      sb.append(new Integer(i+1).toString() + ". "); 
      sb.append((wifiList.get(i)).SSID); 
      sb.append("\n\n"); 
     } 
bt1.setText(wifiList.get(2).SSID); 
     mainText.setText(sb); 
    } 

} 
}

これは私が達成しようとしているものです：