大家好:
想請教
我用eclipse 來寫android
目前要連mysql，但是我的LIST都沒顯示任何東西.....
想請教各位大大該如何更改?

以下是程式碼:

android部分
main主程式部分

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        findViews();
        setListeners();
        
        StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()  
        .detectDiskReads()  
        .detectDiskWrites()  
        .detectNetwork()  
        .penaltyLog()  
        .build());  
        StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()  
        .detectLeakedSqlLiteObjects()   
        .penaltyLog()  
        .penaltyDeath()  
        .build());  
    }
    
    private Button button_get_record;
    
    private void findViews() {
        button_get_record = (Button)findViewById(R.id.get_record);
    }
    
    private void setListeners() {
        button_get_record.setOnClickListener(getDBRecord);
    }
    
    private Button.OnClickListener getDBRecord = new Button.OnClickListener() {
        public void onClick(View v) {
            // TODO Auto-generated method stub
            TableLayout user_list = (TableLayout)findViewById(R.id.user_list);
            user_list.setStretchAllColumns(true);
            TableLayout.LayoutParams row_layout = new TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
            TableRow.LayoutParams view_layout = new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
            try {
        String result = SigninActivity.executeQuery("SELECT * FROM login");
                
                JSONArray jsonArray = new JSONArray(result);
                for(int i = 0; i < jsonArray.length(); i++) {
                    JSONObject jsonData = jsonArray.getJSONObject(i);
                    TableRow tr = new TableRow(MainActivity.this);
                    tr.setLayoutParams(row_layout);
                    tr.setGravity(Gravity.CENTER_HORIZONTAL);
                    
                    TextView user_acc = new TextView(MainActivity.this);
                    user_acc.setText(jsonData.getString("acc"));
                    user_acc.setLayoutParams(view_layout);
                    
                    TextView user_pwd = new TextView(MainActivity.this);
                    user_pwd.setText(jsonData.getString("pwd"));
                    user_pwd.setLayoutParams(view_layout);
                    
                    tr.addView(user_acc);
                    tr.addView(user_pwd);
                    user_list.addView(tr);
                }
            } catch(Exception e) {
                // Log.e("log_tag", e.toString());
            }
        }
    };
}

db.java資料庫連接

public class SigninActivity {
    public static String executeQuery(String acc) {
        String result = "";
        acc="user";
        try {
            HttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost("http://192.168.1.122/cont.php");
            ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("acc", acc));
            httpPost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
            HttpResponse httpResponse = httpClient.execute(httpPost);
            //view_account.setText(httpResponse.getStatusLine().toString());
            HttpEntity httpEntity = httpResponse.getEntity();
            InputStream inputStream = httpEntity.getContent();
            
            BufferedReader bufReader = new BufferedReader(new InputStreamReader(inputStream, "utf-8"), 8);
            StringBuilder builder = new StringBuilder();
            String line = null;
            while((line = bufReader.readLine()) != null) {
                builder.append(line + "\n");
            }
            inputStream.close();
            result = builder.toString();
        } catch(Exception e) {
            // Log.e("log_tag", e.toString());
        }
        
        return result;
    }
}

卡了好久，還請大家指點，謝謝