응용 프로그램을 만들고 있습니다. 웹상의 Json 파일에서 정보를 얻고 싶습니다. 이 작동합니다. 지금은 콘텐츠와 함께 listview의 항목에 onItemClickListener를 갖고 싶습니다. onItemClickListener는 클릭 한 목록의 정보를 내 새 활동으로 보내야합니다.onItemClickListener가있는 응용 프로그램이 작동하지 않습니다.
내 MainActiviy.java의 코드는 다음과 같습니다
package com.jitesh.androidjsonparser;
import java.util.ArrayList;
import java.util.HashMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class MainActivity extends ListActivity {
private Context context;
private static String url = "http://docs.blackberry.com/sampledata.json"; // URL VAN HET JSON BESTAND
private static final String TAG_VTYPE = "vehicleType"; //VELDEN UIT DE JSON HALEN
private static final String TAG_VCOLOR = "vehicleColor";
private static final String TAG_FUEL = "fuel";
private static final String TAG_TREAD = "treadType";
private static final String TAG_OPERATOR = "approvedOperators";
private static final String TAG_NAME = "name";
private static final String TAG_POINTS = "experiencePoints";
ArrayList<HashMap<String, String>> jsonlist = new ArrayList<HashMap<String, String>>();
ListView lv ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new ProgressTask(MainActivity.this).execute();
}
private class ProgressTask extends AsyncTask<String, Void, Boolean> {
private ProgressDialog dialog;
private ListActivity activity;
// private List<Message> messages;
public ProgressTask(ListActivity activity) {
this.activity = activity;
context = activity;
dialog = new ProgressDialog(context);
}
/** progress dialog to show user that the backup is processing. */
/** application context. */
private Context context;
protected void onPreExecute() {
this.dialog.setMessage("Progress start");
this.dialog.show();
}
@Override
protected void onPostExecute(final Boolean success) {
if (dialog.isShowing()) {
dialog.dismiss();
}
ListAdapter adapter = new SimpleAdapter(context, jsonlist,
R.layout.list_item, new String[] { TAG_VTYPE, TAG_VCOLOR,
TAG_FUEL, TAG_TREAD }, new int[] {
R.id.vehicleType, R.id.vehicleColor, R.id.fuel,
R.id.treadType });
setListAdapter(adapter);
// selecting single ListView item
lv = getListView();
}
protected Boolean doInBackground(final String... args) {
JSONParser jParser = new JSONParser();
// getting JSON string from URL
JSONArray json = jParser.getJSONFromUrl(url);
for (int i = 0; i < json.length(); i++) {
try {
JSONObject c = json.getJSONObject(i);
String vtype = c.getString(TAG_VTYPE);
String vcolor = c.getString(TAG_VCOLOR);
String vfuel = c.getString(TAG_FUEL);
String vtread = c.getString(TAG_TREAD);
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_VTYPE, vtype);
map.put(TAG_VCOLOR, vcolor);
map.put(TAG_FUEL, vfuel);
map.put(TAG_TREAD, vtread);
jsonlist.add(map);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return null;
}
}
}
사람이 onItemClickListener와 나는이 onItemClickListener를 설정해야하는 장소에 나를 도와 드릴까요?
@Override protected void onListItemClick(ListView lv, View v, int position, long id) {
Intent i = new Intent(getApplicationContext(), single_list_item_view.class);
String vehicleType = ((TextView) v).getText().toString();
i.putExtra("TAG_VTYPE", vehicleType);
startActivity(i);
}
사용 - [링크] (http://www.vogella.com/tutorials/AndroidListView/article.html) – prakash
당신은 아마 HTTP를 조회하려면 : // 개발자. android.com/reference/android/app/ListActivity.html#onListItemClick%28android.widget.ListView%20android.view.View,%20int,%20long%29 – Bex