搜索功能不起作用

Question

感謝您的幫助。我不明白爲什麼它不起作用。我添加了以下功能來搜索用戶。我調試它，它似乎在濾波器（argo）函數中被卡住了。我的代碼如下。 logcat錯誤中沒有任何內容。感謝你的幫助。

我的代碼（更新代碼）

import java.util.List; 

import android.app.AlertDialog; 
import android.app.ListActivity; 
import android.app.SearchManager; 
import android.content.Context; 
import android.os.Bundle; 
import android.support.v4.app.NavUtils; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.Window; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 
import android.widget.SearchView; 
import android.widget.SearchView.OnQueryTextListener; 

import com.parse.FindCallback; 
import com.parse.ParseException; 
import com.parse.ParseQuery; 
import com.parse.ParseRelation; 
import com.parse.ParseUser; 
import com.parse.SaveCallback; 

public class EditFriendsActivity extends ListActivity { 

    public static final String TAG = EditFriendsActivity.class.getSimpleName(); 

    protected ParseRelation<ParseUser> mFriendsRelation; 
    protected ParseUser mCurrentUser; 
    protected List<ParseUser> mUsers; 
    CustomAdaptor adapter; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); 
     setContentView(R.layout.activity_edit_friends); 
     // Show the Up button in the action bar. 
     setupActionBar(); 

     getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); 



    } 


    @Override 
    protected void onResume() { 
     super.onResume(); 

     mCurrentUser = ParseUser.getCurrentUser(); 
     mFriendsRelation = mCurrentUser.getRelation(ParseConstants.KEY_FRIENDS_RELATION); 

     setProgressBarIndeterminateVisibility(true); 

     ParseQuery<ParseUser> query = ParseUser.getQuery(); 
     query.orderByAscending(ParseConstants.KEY_USERNAME); 
     query.setLimit(1000); 
     query.findInBackground(new FindCallback<ParseUser>() { 

      @Override 
      public void done(List<ParseUser> users, ParseException e) { 
       setProgressBarIndeterminateVisibility(false); 

       if (e == null) { 
        // Success 
        mUsers = users; 
        String[] usernames = new String[mUsers.size()]; 
        int i = 0; 
        for(ParseUser user : mUsers) { 
         usernames[i] = user.getUsername(); 
         i++; 
        } 

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(
          EditFriendsActivity.this, 
          android.R.layout.simple_list_item_checked, 
          usernames); 
        setListAdapter(adapter); 

        addFriendCheckmarks(); 
       } 
       else { 

        Log.e(TAG, e.getMessage()); 
        AlertDialog.Builder builder = new AlertDialog.Builder(EditFriendsActivity.this); 
        builder.setMessage(e.getMessage()) 
         .setTitle(R.string.error_title) 
         .setPositiveButton(android.R.string.ok, null); 
        AlertDialog dialog = builder.create(); 
        dialog.show(); 
       } 
      } 
     }); 
    } 


    private void setupActionBar() { 

     getActionBar().setDisplayHomeAsUpEnabled(true); 

    } 



    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.findrecipients, menu); 

     SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE); 
     SearchView searchView = (SearchView) menu.findItem(R.id.action_search) 
       .getActionView(); 
     searchView.setSearchableInfo(searchManager 
       .getSearchableInfo(getComponentName())); 

     SearchView.OnQueryTextListener queryTextListener = new OnQueryTextListener() { 

      @Override 
      public boolean onQueryTextSubmit(String arg0) { 
       // TODO Auto-generated method stub 
       android.content.Context context; 
       context = getApplicationContext(); 
       Search srchContact = new Search(context, adapter, (ListView) mUsers); 
       srchContact.Search(arg0); 
       return true; 
      } 

      @Override 
      public boolean onQueryTextChange(String arg0) { 
       // TODO Auto-generated method stub 

       return true; 
      } 
     }; 
     searchView.setOnQueryTextListener(queryTextListener); 
       return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     switch (item.getItemId()) { 
     case android.R.id.home: 
      NavUtils.navigateUpFromSameTask(this); 
      return true; 
     } 

     return super.onOptionsItemSelected(item); 
    } 

    public class Search 
    { 
     android.content.Context context; 
     CustomAdaptor tempAdptr; 
     CustomAdaptor adptr; 
     android.widget.ListView lstContact; 
     java.util.ArrayList<ParseUser> arrMyObject; 
     public Search(android.content.Context con , CustomAdaptor adp , android.widget.ListView lst) 
     { 
      context = con; 
      arrMyObject = new java.util.ArrayList<ParseUser>(); 
      tempAdptr = new CustomAdaptor(context, android.R.layout.simple_list_item_checked, arrMyObject); 
      adptr = adp; 
      lstContact = lst; 
     } 
     public void Search(String strSearch) 
     { 
      lstContact.setAdapter(tempAdptr); 
      if(strSearch.equals("")) 
      { 
       lstContact.setAdapter(adptr); 
       return ; 
      } 
      arrMyObject.removeAll(arrMyObject) ; 
      for(int i = 0 ; i < mUsers.size() ; i++) 
      { 
       if(mUsers.get(i).getUsername().contains(strSearch)) 
       { 
        //Add item to your list 
       } 
      } 
      tempAdptr.notifyDataSetChanged(); 
     } 
    } 


public class CustomAdaptor extends ArrayAdapter<ParseUser> { 
    android.content.Context context; 
    int resId; 
    java.util.ArrayList<ParseUser> arrData; 
    public CustomAdaptor(Context ac, int resource, java.util.ArrayList<ParseUser> data) { 
     super(ac, resource, data); 
     // TODO Auto-generated constructor stub 
     context = ac; 
      resId = resource; 
      arrData = data; 
    } 


    @Override 
    public android.view.View getView(final int position,android.view.View convertView, android.view.ViewGroup parent) 
    { 
     try 
     { 
      ParseUser member = arrData.get(position); 
      android.view.LayoutInflater inflater = (LayoutInflater) context.getSystemService(android.content.Context.LAYOUT_INFLATER_SERVICE); 
      android.view.View Row =inflater.inflate(resId, parent , false); 
      // Set Your XML file 
      return Row; 
     } 
     catch (Exception e) 
     { 
      return null; 
     } 
    } 
} 

Answer 1

我有類似的代碼，可能是有用的：在一個列表和顯示搜索搜索類：
在這段代碼中，我們有幾個類：
第一導致列表視圖
二：CustomAdapter是準備列表視圖
第三：主要調用搜索功能的搜索類

public class Search 
{ 
    android.content.Context context; 
    CustomAdaptor tempAdptr; 
    CustomAdaptor adptr; 
    android.widget.ListView lstContact; 
    java.util.ArrayList<MyObject> arrMyObject; 
    public SearchContact(android.content.Context con , CustomAdaptor adp , android.widget.ListView lst) 
    { 
     context = con; 
     arrMyObject = new java.util.ArrayList<MyObject>(); 
     tempAdptr = new CustomAdaptor(context, R.layout.contact_row, arrMyObject); 
     adptr = adp; 
     lstContact = lst; 
    } 
    public void Search(String strSearch) 
    { 
     lstContact.setAdapter(tempAdptr); 
     if(strSearch.equals("")) 
     { 
      lstContact.setAdapter(adptr); 
      return ; 
     } 
     arrMyObject.removeAll(arrMyObject) ; 
     for(int i = 0 ; i < MainActivity.GetArrMyObject().size() ; i++) 
     { 
      if(arrlist.get(i).contains(strSearch)) 
      { 
       //Add item to your list 
      } 
     } 
     tempAdptr.notifyDataSetChanged(); 
    } 
} 


//------------------------------------------------------------------------------------ 
public class CustomAdaptor extends ArrayAdapter<MyObject> { 

android.content.Context context; 
int resId; 
java.util.ArrayList<MyObject> arrData; 
public ContactAdaptor(android.content.Context ac, int resource , java.util.ArrayList<MyObject> data) { 
    super(ac, resource, data); 
    context = ac; 
    resId = resource; 
    arrData = data; 
} 
@Override 
public android.view.View getView(final int position,android.view.View convertView, android.view.ViewGroup parent) 
{ 
    try 
    { 
     MyObject member = arrData.get(position); 
     android.view.LayoutInflater inflater = (LayoutInflater) context.getSystemService(android.content.Context.LAYOUT_INFLATER_SERVICE); 
     android.view.View Row =inflater.inflate(resId, parent , false); 
     // Set Your XML file 
     return Row; 
    } 
    catch (Exception e) 
    { 
     return null; 
    } 
} 
} 

現在你可以在主使用此代碼：

SearchContact srchContact = new SearchContact(context, adptr, arraylist); 
    srchContact.Search(YourObject);