Как установить прослушиватель для события click в элементе ListView

Question

Я написал следующий код для события события элемента ввода ListView, но когда я запускаю приложение, и я нажимаю элемент, действия нет. Почему это происходит?

public class ListingActivity extends Activity implements OnClickListener{ 
    private ListView list; 
    private Button sortBtn,filter; 
    double destLat,destLng; 
    AlertDialog alert; 
    MyAdabpter adapter; 

    ArrayList<HashMap<String,String>> filteredList; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.listviewer); 
     list = (ListView) findViewById(R.id.list); 
     sortBtn = (Button) findViewById(R.id.sort_btn); 
     filter = (Button) findViewById(R.id.filter_btn); 
    //  ListAdapter adapter = new SimpleAdapter(this, FetchXMLData.mylist , R.layout.list_item, 
    //    new String[] { "Name", "Vicinity","Distance","Rating"}, 
    //    new int[] { R.id.name, R.id.address,R.id.distance,R.id.rating }); 
     adapter = new MyAdabpter(this); 

     list.setAdapter(adapter); 
     list.setTextFilterEnabled(true); 
     list.setEnabled(true); 
     list.setOnItemClickListener(new OnItemClickListener() { 

      @Override 
      public void onItemClick(AdapterView<?> arg0, View arg1, int position, 
        long arg3) { 
       // TODO Auto-generated method stub 
       destLat = Double.parseDouble(FetchXMLData.mylist.get(position).get("Latitude")); 
       destLng = Double.parseDouble(FetchXMLData.mylist.get(position).get("Longitude")); 
       Intent intent = new Intent(Intent.ACTION_VIEW, 
         Uri.parse("http://maps.google.com/maps?saddr=" + LocationSearch.latitude + "," + LocationSearch.longitude + 
           "&daddr=" + destLat + "," + destLng)); 
        intent.setComponent(new ComponentName("com.google.android.apps.maps", 
         "com.google.android.maps.MapsActivity")); 
        startActivity(intent); 

      } 
     }); 

     sortBtn.setOnClickListener(this); 
     filter.setOnClickListener(this); 
    } 

    @Override 
    public void onClick(View v) { 
     // TODO Auto-generated method stub 
     switch (v.getId()) { 
     case R.id.sort_btn: 
      showSortList(); 
      break; 

     case R.id.filter_btn: 
      showFilterList(); 
      break; 
     default: 
      break; 
     } 

    } 
    protected void showSortList() { 
     // TODO Auto-generated method stub 
     final CharSequence[] items = {"Rating", "Distance"}; 
     AlertDialog.Builder builder = new AlertDialog.Builder(ListingActivity.this); 
     builder.setTitle("Sort by"); 
     FetchXMLData.mylist = FetchXMLData.templist; 
     builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog, int item) { 
       Collections.sort(FetchXMLData.mylist,Collections.reverseOrder(new MyComparator(items[item].toString()))); 
       dialog.dismiss(); 
       adapter.notifyDataSetChanged(); 
      } 
     }); 
     alert = builder.create(); 
     alert.show(); 
    } 
    protected void showFilterByRating() { 
     // TODO Auto-generated method stub 
     final CharSequence[] items = {"only 5 stars", "only 4 stars","only 3 stars", "only 2 stars","only 1 star"}; 

     AlertDialog.Builder builder = new AlertDialog.Builder(ListingActivity.this); 
     builder.setTitle("Filter by Rating"); 
     builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog, int item) { 
       dialog.dismiss(); 
       FetchXMLData.mylist = FetchXMLData.templist; 
       filteredList = new ArrayList<HashMap<String,String>>(); 
       if(item == 0 && FetchXMLData.mylist.size() > 0) 
       { 
        for(int i = 0; i < FetchXMLData.mylist.size(); i++) 
        { 
         if(!FetchXMLData.mylist.get(i).get("Rating").equals("")) 
         { 
          if(Float.parseFloat(FetchXMLData.mylist.get(i).get("Rating").toString()) == 5) 
          { 
           filteredList.add(FetchXMLData.mylist.get(i)); 
          } 
         } 
        } 
        FetchXMLData.mylist = filteredList; 
        adapter.notifyDataSetChanged(); 
       } 
       else if(item == 1 && FetchXMLData.mylist.size() > 0) 
       { 
        for(int i = 0; i < FetchXMLData.mylist.size(); i++) 
        { 
         if(!FetchXMLData.mylist.get(i).get("Rating").equals("")) 
         { 
          if(Float.parseFloat(FetchXMLData.mylist.get(i).get("Rating")) == 4.0) 
          { 
           filteredList.add(FetchXMLData.mylist.get(i)); 
          } 
         } 
        } 
        FetchXMLData.mylist = filteredList; 
        adapter.notifyDataSetChanged(); 
       } 
       else if(item == 2 && FetchXMLData.mylist.size() > 0) 
       { 
        for(int i = 0; i < FetchXMLData.mylist.size(); i++) 
        { 
         if(!FetchXMLData.mylist.get(i).get("Rating").equals("")) 
         { 
          if(Float.parseFloat(FetchXMLData.mylist.get(i).get("Rating")) == 3.0) 
          { 
           filteredList.add(FetchXMLData.mylist.get(i)); 
          } 
         } 
        } 

       } 
       else if(item == 3 && FetchXMLData.mylist.size() > 0) 
       { 
        for(int i = 0; i < FetchXMLData.mylist.size(); i++) 
        { 
         if(!FetchXMLData.mylist.get(i).get("Rating").equals("")) 
         { 
          if(Float.parseFloat(FetchXMLData.mylist.get(i).get("Rating")) == 2.0) 
          { 
           filteredList.add(FetchXMLData.mylist.get(i)); 
          } 
         } 
        } 

       } 
       else if(item == 4 && FetchXMLData.mylist.size() > 0) 
       { 
        for(int i = 0; i < FetchXMLData.mylist.size(); i++) 
        { 
         if(!FetchXMLData.mylist.get(i).get("Rating").equals("")) 
         { 
          if(Float.parseFloat(FetchXMLData.mylist.get(i).get("Rating")) == 1.0) 
          { 
           filteredList.add(FetchXMLData.mylist.get(i)); 
          } 
         } 
        } 

       } 
       if(filteredList.size() > 0) 
       { 
        FetchXMLData.mylist = filteredList; 
        adapter.notifyDataSetChanged(); 
       } 
       else 
       { 
        Toast.makeText(getApplicationContext(),"Sorry,no data found", Toast.LENGTH_SHORT).show(); 
       } 
      } 
     }); 
     alert = builder.create(); 
     alert.show(); 
    } 
    protected void showFilterList() { 
     // TODO Auto-generated method stub 
     final CharSequence[] items = {"By Rating", "By Distance", "By Name"}; 

     AlertDialog.Builder builder = new AlertDialog.Builder(ListingActivity.this); 
     builder.setTitle("Filter by"); 
     builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog, int item) { 
       dialog.dismiss(); 
       FetchXMLData.mylist = FetchXMLData.templist; 
       if(items[item].equals("By Rating")) 
       { 
        showFilterByRating(); 
       } 
       else if(items[item].equals("By Distance")) 
       { 
        showFilterByDistance(); 
       } 
       else if(items[item].equals("By Name")) 
       { 
        //showFilterByName(); 
       } 

      } 
     }); 
     alert = builder.create(); 
     alert.show(); 
    } 
    protected void showFilterByDistance() { 
     // TODO Auto-generated method stub 
     final CharSequence[] items = {"between 0-2km", "between 2-4km","between 4-5km"}; 

     AlertDialog.Builder builder = new AlertDialog.Builder(ListingActivity.this); 
     builder.setTitle("Filter by Distance"); 
     FetchXMLData.mylist = FetchXMLData.templist; 
     builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog, int item) { 
       dialog.dismiss(); 
       filteredList = new ArrayList<HashMap<String,String>>(); 
       if(item == 0 && FetchXMLData.mylist.size() > 0) 
       { 
        for(int i = 0; i < FetchXMLData.mylist.size(); i++) 
        { 
         if(Float.parseFloat(FetchXMLData.mylist.get(i).get("Distance")) > 0 && Float.parseFloat(FetchXMLData.mylist.get(i).get("Distance")) <= 2 ) 
         { 
          filteredList.add(FetchXMLData.mylist.get(i)); 
         } 
        } 

       } 
       else if(item == 1 && FetchXMLData.mylist.size() > 0) 
       { 
        for(int i = 0; i < FetchXMLData.mylist.size(); i++) 
        { 
         if(Float.parseFloat(FetchXMLData.mylist.get(i).get("Distance")) > 2 && Float.parseFloat(FetchXMLData.mylist.get(i).get("Distance")) <= 4) 
         { 
          filteredList.add(FetchXMLData.mylist.get(i)); 
         } 
        } 

       } 
       else if(item == 2 && FetchXMLData.mylist.size() > 0) 
       { 
        for(int i = 0; i < FetchXMLData.mylist.size(); i++) 
        { 
         if(Float.parseFloat(FetchXMLData.mylist.get(i).get("Distance")) > 4 && Float.parseFloat(FetchXMLData.mylist.get(i).get("Distance")) <=5 ) 
         { 
          filteredList.add(FetchXMLData.mylist.get(i)); 
         } 
        } 

       } 
       if(filteredList.size() > 0) 
       { 
        FetchXMLData.mylist = filteredList; 
        adapter.notifyDataSetChanged(); 
       } 
       else 
       { 
        Toast.makeText(getApplicationContext(),"Sorry,no data found", Toast.LENGTH_SHORT).show(); 
       } 
      } 
     }); 
     alert = builder.create(); 
     alert.show(); 
    } 
    protected void showFilterByName() { 
     // TODO Auto-generated method stub 
     final CharSequence[] items = {"between 0-2km", "between 2-4km","between 4-5km"}; 
     FetchXMLData.mylist = FetchXMLData.templist; 
     AlertDialog.Builder builder = new AlertDialog.Builder(ListingActivity.this); 
     builder.setTitle("Enter key word"); 
     builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() { 
      public void onClick(DialogInterface dialog, int item) { 
       Toast.makeText(getApplicationContext(), items[item], Toast.LENGTH_SHORT).show(); 
      } 
     }); 
     alert = builder.create(); 
     alert.show(); 
    } 




} 

Ниже мой файл макета с ListView:

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:background="#000000" 
android:orientation="vertical" > 

<ListView 
    android:id="@+id/list" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:clickable="true" 
    android:dividerHeight="5dp" > 
</ListView> 

<RelativeLayout 
    android:id="@+id/footer_menu" 
    style="@android:color/transparent" 
    android:layout_width="fill_parent" 
    android:layout_height="50dp" 
    android:layout_alignParentBottom="true" 
    android:layout_gravity="bottom" 
    android:orientation="vertical" > 

    <Button 
     android:id="@+id/sort_btn" 
     android:layout_width="160dp" 
     android:layout_height="fill_parent" 
     android:background="@drawable/footer_button" 
     android:text="Sort" 
     android:textColor="#FFFFFF" 
     android:textStyle="bold" /> 

    <Button 
     android:id="@+id/filter_btn" 
     android:layout_width="160dp" 
     android:layout_height="fill_parent" 
     android:layout_toRightOf="@+id/sort_btn" 
     android:background="@drawable/footer_button" 
     android:text="Filter" 
     android:textColor="#FFFFFF" 
     android:textStyle="bold" /> 
</RelativeLayout> 

</RelativeLayout> 

Answer 1

listView.setOnItemClickListener(new OnItemClickListener() { 
     @Override 
     public void onItemClick(AdapterView<?> parent, View view, int position, 
       long id) { 

      String item = values[position]; 

      Toast.makeText(getBaseContext(), item, Toast.LENGTH_LONG).show(); 

     } 
    }); 

Answer 2

Вы хотите сделать что-то вроде этого:

public class YourActivity extends ListActivity implements OnItemClickListener{ 

    @Override 
    public void onCreate(Bundle icicle){ 
     super.onCreate(icicle); 
     setContentView(R.layout.your_layout); 
     getListView().setOnItemClickListener(this); 
    } 

    @Override 
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { 
     // Do your thing here 
    } 
}