Android: setAdapter spinner จาก json ไม่ได้ ครับ รบกวนช่วยชี้แนะที

poster.doPost(data, new Handler( ){
			
			public void handleMessage(android.os.Message msg){
				switch(msg.what){
				case MyHttpPost.HTTP_POST_ERROR:
				//respone_username.setText((String)msg.obj);
				break;
				case MyHttpPost.HTTP_POST_OK:
					String response = (String)msg.obj;
					Toast.makeText(context, response, Toast.LENGTH_LONG).show();
					
					try {
						JSONArray object = new JSONArray(response);
						
						//ArrayList<HashMap<String, String>> MyArrList = new ArrayList<HashMap<String, String>>();
						//HashMap<String, String> map;
						
						
						for(int i = 0; i < object.length(); i++){
					              JSONObject c = object.getJSONObject(i);
					              
					  			String province_id = c.getString("PROVINCE_ID");
					  			String province_name = c.getString("PROVINCE_NAME");
					  			Toast.makeText(context, province_id + ":"+ province_name, Toast.LENGTH_LONG).show();
					  			
						
						}
						ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item,province_name);
						dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
						spinner_province.setAdapter(dataAdapter);
												

						
						
					} catch (JSONException e) {
						Toast.makeText(context, "Unable to convert to Json", Toast.LENGTH_SHORT).show();
						e.printStackTrace();
					}
					
				}
			}
		});