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POpopulate two spinners from mysql database that are dependant to each other
 

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  1. POpopulate two spinners from mysql database that are dependant to each other
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    <p>i have 2 spinners one for Province and other for City and if i select Gauteng in Province spinner the second spinner must show Johannesburg,Pretoria,Centurion and if i select KZN in province i want the second spinner to show Petermaritsburg,Durban,Ulundi</p> <p>Here is my code that i have tried to use but is not working at all.i will appriciate your help</p> <pre><code>int ct_id; String[] ct_name = null; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.extras); provins = (Spinner) findViewById(R.id.spinprovince); city = (Spinner) findViewById(R.id.spincity); save = (Button) findViewById(R.id.btnsave); String result = null; InputStream is = null; StringBuilder sb = null; // http post try { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://10.0.2.2/php/ttz.php"); // httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); HttpResponse response = httpclient.execute(httppost); HttpEntity entity = response.getEntity(); is = entity.getContent(); } catch (Exception e) { Log.e("log_tag", "Error in http connection" + e.toString()); } // convert response to string try { BufferedReader reader = new BufferedReader(new InputStreamReader( is, "iso-8859-1"), 8); sb = new StringBuilder(); sb.append(reader.readLine() + "\n"); String line = "0"; while ((line = reader.readLine()) != null) { sb.append(line + "\n"); } is.close(); result = sb.toString(); } catch (Exception e) { Log.e("log_tag", "Error converting result " + e.toString()); } // paring data JSONArray jArray; try { jArray = new JSONArray(result); JSONObject json_data = null; ct_name = new String[jArray.length()]; for (int i = 0; i &lt; jArray.length(); i++) { json_data = jArray.getJSONObject(i); ct_id = json_data.getInt("idprovince"); ct_name[i] = json_data.getString("provincename"); ArrayAdapter aa = new ArrayAdapter(this,android.R.layout.simple_spinner_item,ct_name); aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); provins.setAdapter(aa); } } catch (JSONException e1) { Toast.makeText(getBaseContext(), "No City Found", Toast.LENGTH_LONG) .show(); } catch (ParseException e1) { e1.printStackTrace(); } } } </code></pre>
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