所以我有一个带溢出菜单的活动，让用户可以选择将数据显示在一个列表视图中的不同类别。我需要为listview设置一个clicklistener，它可以用于每个类别，以从所选类别中获取信息。目前我只能将其用于一个类别，但没有灵活性（因为如果我设置它，它将适用于总线）。我已经尝试了一些if if语句在特定类别中注册但没有运气的情况。
public class AllAttractions extends AppCompatActivity implements View.OnClickListener {
DBManager db;
ListView ls;
// Progress Dialog
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser();
// JSON Node names for attraction
private static final String TAG_SUCCESS = "success";
private static final String TAG_ATTRACTION = "attraction";
private static final String TAG_ATTRACTIONID = "Id";
private static final String TAG_NAME = "Name";
private static final String TAG_TYPE = "Type";
private static final String TAG_LOCATION = "Location";
private static final String TAG_OPENING = "OpeningTime";
private static final String TAG_CLOSING = "ClosingTime";
private static final String TAG_NEARBYSTOP = "NearbyStop";
private static final String TAG_LATITUDE = "Latitude";
private static final String TAG_LONGITUDE = "Longitude";
//JSON Node names for transport
private static final String TAG_TRANSPORT = "transport";
private static final String TAG_TRANSPORTID = "Id";
private static final String TAG_TIME = "Time";
private static final String TAG_NEXTSTOP = "NextStop";
private static final String TAG_PHONENUMBER = "PhoneNumber";
private static final String TAG_BUS_STOPS = "bus_stops";
private static final String TAG_ID = "id";
private static final String TAG_STOP = "stop";
private static final String TAG_BUS_NAME = "bus_name";
private static final String TAG_NEXT_STOP = "next_stop";
// attraction JSONArray
JSONArray attraction = null;
JSONArray transport = null;
JSONArray bus_stops = null;
String pid;
String pid2;
String pid1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_all_attractions);
db = new DBManager(this);
// Hashmap for ListView
// Get listview
ls = (ListView) findViewById(R.id.list_search);
this.registerForContextMenu(ls);
ls.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
//can only get one of these to work otherwise will get error but need to be able to get anyone from any of the 3 below
String BMAttractionName = ((TextView)view.findViewById(R.id.name)).getText().toString();
String BMTransportName = ((TextView)view.findViewById(R.id.TransportName)).getText().toString();
String BMBusName = ((TextView)view.findViewById(R.id.busStop)).getText().toString();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.optionsmenu,menu);
return true;
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
if(v.getId()== R.id.list_search){
this.getMenuInflater().inflate(R.menu.context_menu_more,menu);
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
switch (item.getItemId()) {
case R.id.menuBookmark:
System.out.println(pid);
return true;
default:
return super.onContextItemSelected(item);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (item.isChecked())
item.setChecked(false);
else
item.setChecked(true);
if(id == R.id.attractionSub1){
new LoadAllCafe().execute();
}else if(id == R.id.attractionSub2){
}else if(id == R.id.attractionSub3){
}else if(id == R.id.attractionSub4){
}else if(id == R.id.attractionSub5){
}else if(id == R.id.attractionSub6){
}else if(id ==R.id.attractionSub7){
}else if(id == R.id.attractionSub8){
}else if(id == R.id.attractionSub9){
} else if(id == R.id.transportSub1){
new LoadAllTransport().execute();
}else if(id == R.id.transportSub2){
new LoadAllBus().execute();
}
return true;
}
@Override
public void onClick(View view) {
}
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all attraction
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
AllAttractions.this, cafeList,
R.layout.list_attraction, new String[]{TAG_ATTRACTIONID,
TAG_NAME,TAG_TYPE,TAG_LOCATION,TAG_OPENING,TAG_CLOSING,TAG_NEARBYSTOP,TAG_LATITUDE,TAG_LONGITUDE},
new int[]{R.id.Attractionid, R.id.name, R.id.type, R.id.location,R.id.open,R.id.close,R.id.nearbystop, R.id.tvLat,R.id.tvLon});
// updating listview
ls.setAdapter(adapter);
}
});
}
}
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all attraction
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
AllAttractions.this, transportList,
R.layout.list_transport, new String[]{TAG_TRANSPORTID,
TAG_NAME,TAG_LOCATION,TAG_PHONENUMBER},
new int[]{R.id.transportid, R.id.TransportName, R.id.TransportLocation,R.id.TransportPhoneNumber});
// updating listview
ls.setAdapter(adapter);
}
});
}
}
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all attraction
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
AllAttractions.this, busList,
R.layout.list_bus, new String[]{TAG_ID,
TAG_STOP,TAG_BUS_NAME,TAG_NEXT_STOP},
new int[]{R.id.busID, R.id.busStop, R.id.busName, R.id.busNextStop});
// updating listview
ls.setAdapter(adapter);
}
});
}
}
}
ls.setOnItemClickListener中的主要部分位于顶部附近（新的AdapterView.OnItemClickListener（）{....
这里我有3个字符串试图访问每个不同类别中的数据名称。但是只能让这个为一个工作（如果我评论2，另一个将工作）但我需要他们所有能够提取信息，如果我选择相关的类别。感谢能帮助我的人。