Android - เมื่อกดให้เรียก spinner ที่ดึงข้อมูลจาก MySQL Database ให้แสดงแอพจะค้าง แก้ไขอย่างไรดีค่ะ

protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.adnews);
		setupActionBar();
		
		if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
            
        }
	
public void clickr11(View v){
    showspinner();

}

private void showspinner(){
		// spinner1
        
	//servername is ip address my computer + name folder 
	addinsql ss= new addinsql();	
 	String url = ss.getserverName()+"getJSON_spinnlight.php";

		try {
			
			JSONArray data = new JSONArray(getJSONUrl(url));
			Spinner spin1 =(Spinner)findViewById(R.id.spinner1);			
			
			final ArrayList<HashMap<String, String>> MyArrList = new ArrayList<HashMap<String, String>>();
			HashMap<String, String> map;
			
			for(int i = 0; i < data.length(); i++){
                JSONObject c = data.getJSONObject(i);
                
    			map = new HashMap<String, String>();
    			map.put("light_detail", c.getString("light_detail"));
    			MyArrList.add(map);
    			
			}
			
			HashMap<String, String> m = MyArrList.get(0);//it will get the first HashMap Stored in array list 
			spinlight =new String[m.size()];
			int i = 0;
			for (HashMap<String, String> hash : MyArrList) {
			    for (String current : hash.values()) {
			        spinlight[i] = current;
			        i++;
			    }
			}

			
			
			ArrayAdapter<String> dataAdapter1 = new ArrayAdapter<String>
			(this,android.R.layout.simple_spinner_item,spinlight);
			
			spin1.setAdapter(dataAdapter1);
			spin1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
			@Override
			public void onItemSelected(AdapterView<?> arg0, View arg1, int position,
					long arg3) {
				final EditText e4 = (EditText)findViewById(R.id.e_51);
				
				if(position==5){
					e4.setVisibility(View.VISIBLE);
					e4.setText("");
				}
				else {
					e4.setVisibility(View.INVISIBLE);
					e4.setText("-");
				}
				// TODO Auto-generated method stub
				
			}
			@Override
			public void onNothingSelected(AdapterView<?> arg0) {
				// TODO Auto-generated method stub
				Log.e(TAG,"มาแล้ว2");
				Toast.makeText(getApplicationContext(),"not", Toast.LENGTH_SHORT).show();
				
			}});
			
                        } catch (JSONException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

	     
	}

	public String getJSONUrl(String url) {
		StringBuilder str = new StringBuilder();
		HttpClient client = new DefaultHttpClient();
		HttpGet httpGet = new HttpGet(url);
		try {
			HttpResponse response = client.execute(httpGet);
			StatusLine statusLine = response.getStatusLine();
			int statusCode = statusLine.getStatusCode();
			if (statusCode == 200) { // Download OK
				HttpEntity entity = response.getEntity();
				InputStream content = entity.getContent();
				BufferedReader reader = new BufferedReader(new InputStreamReader(content));
				String line;
				while ((line = reader.readLine()) != null) {
					str.append(line);
				}
			} else {
				Log.e("Log", "Failed to download result..");
			}
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		
		return str.toString();
	}

<?php
	$objConnect = mysql_connect("localhost","root","****");
	$objDB = mysql_select_db("visit");
	$strSQL = "SELECT light_detail FROM light";
	$objQuery = mysql_query($strSQL);
	$intNumField = mysql_num_fields($objQuery);
	$resultArray = array();
	while($obResult = mysql_fetch_array($objQuery))
	{
		$arrCol = array();
		for($i=0;$i<$intNumField;$i++)
		{
			$arrCol[mysql_field_name($objQuery,$i)] = $obResult[$i];
		}
		array_push($resultArray,$arrCol);
	}
	
	mysql_close($objConnect);
	
	echo json_encode($resultArray);
?>