1
我的完整的项目如下:有一个的ListView connnected到数据库,并建议一个搜索选项。我想将此搜索栏移动到动作栏并将其格式化为Google Play商店搜索栏。请大家帮帮我,我的完整代码:安卓:添加搜索查看操作栏
MainActivity.java
package com.GurbaniAndSikh.MahaanKosh;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.SearchView;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
/*
* Created by GurbaniAndSikh
*/
public class DictionaryMainActivity extends AppCompatActivity {
private static RecyclerView.Adapter adapter;
private RecyclerView.LayoutManager layoutManager;
private static RecyclerView recyclerView;
public static ArrayList<DictObjectModel> data;
DatabaseHelper db ;
ArrayList<String> wordcombimelist;
ArrayList<String> meancombimelist;
LinkedHashMap<String,String> namelist;
SearchView searchView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);
recyclerView.setHasFixedSize(true);
db= new DatabaseHelper(this);
searchView = (SearchView) findViewById(R.id.searchView);
searchView.setQueryHint("Search Here");
searchView.setQueryRefinementEnabled(true);
layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setItemAnimator(new DefaultItemAnimator());
data = new ArrayList<DictObjectModel>();
fetchData();
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {return false; }
@Override
public boolean onQueryTextChange(String newText) {
newText = newText.toLowerCase();
final ArrayList<DictObjectModel> filteredList = new ArrayList<DictObjectModel>();
for (int i = 0; i < wordcombimelist.size(); i++) {
final String text = wordcombimelist.get(i).toLowerCase();
if (text.contains(newText)) {
filteredList.add(new DictObjectModel(wordcombimelist.get(i),meancombimelist.get(i)));
}
}
adapter = new CustomAdapter(filteredList);
recyclerView.setAdapter(adapter);
return true;
}
});
}
public void fetchData()
{
db =new DatabaseHelper(this);
try {
db.createDataBase();
db.openDataBase();
}
catch (Exception e)
{
e.printStackTrace();
}
namelist=new LinkedHashMap<>();
int ii;
SQLiteDatabase sd = db.getReadableDatabase();
Cursor cursor = sd.query("Dictionary1" ,null, null, null, null, null, null);
ii=cursor.getColumnIndex("word");
wordcombimelist=new ArrayList<String>();
meancombimelist= new ArrayList<String>();
while (cursor.moveToNext()){
namelist.put(cursor.getString(ii), cursor.getString(cursor.getColumnIndex("definition")));
}
Iterator entries = namelist.entrySet().iterator();
while (entries.hasNext()) {
Map.Entry thisEntry = (Map.Entry) entries.next();
wordcombimelist.add(String.valueOf(thisEntry.getKey()));
meancombimelist.add("- "+String.valueOf(thisEntry.getValue()));
}
for (int i = 0; i < wordcombimelist.size(); i++) {
data.add(new DictObjectModel(wordcombimelist.get(i), meancombimelist.get(i)));
}
adapter = new CustomAdapter(data);
recyclerView.setAdapter(adapter);
}
}
我使用这些代码添加搜索查看到动作栏中,但用getFilter()不工作。
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_search, menu);
MenuItem item = menu.findItem(R.id.menuSearch);
SearchView searchView = (SearchView)item.getActionView();
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
adapter.getFilter().filter(newText);
return false;
}
});
return super.onCreateOptionsMenu(menu);
}
请告诉我怎样的方法来我的目标,请帮助我
http://javapapers.com/android/android-searchview-action-bar-tutorial/ 对此博客看看!他解释得很好,如何创建一个搜索栏。或者针对您遇到的问题提出具体问题。如果您需要某人为您开发,请在upster.com上查看。 – GAlexMES