利用searchview搜索应用程序

 

package com.example.excerciseforsearchview;

import java.util.List;

import android.os.Bundle;
import android.app.Activity;
import android.app.SearchManager;
import android.app.SearchableInfo;
import android.content.Context;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements SearchView.OnQueryTextListener{
    TextView textView;
    private SearchView searchView;
    private SearchableInfo searchableInfo;
    private SearchableInfo shInfo;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textView=(TextView) findViewById(R.id.text);
    }



    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        MenuItem menuItem=menu.findItem(R.id.action_settings);
        //下面一行代码的作用是Returns the currently set action view for this menu item.
        //要使用menuItem的getActionView方法需在设置menu的xml文件item里添加
        //android:actionViewClass="android.widget.SearchView"
        searchView=(SearchView) menuItem.getActionView();
        searchView.setOnQueryTextListener(this);
        searchAppInfo();
        return true;
    }

    private void searchAppInfo() {
        // TODO Auto-generated method stub
        SearchManager searchManager=(SearchManager) getSystemService(Context.SEARCH_SERVICE);
        if (searchManager!=null) {
            //Returns a list of the searchable activities that can be included in global search.
            //把所有可以被搜索到的Searchable activities列出
            List<SearchableInfo> searchableInfos=searchManager.getSearchablesInGlobalSearch();
            //Gets information about a searchable activity
            //根据ComponentName得到具体搜到的searchableInfo
            searchableInfo=searchManager.getSearchableInfo(getComponentName());
            for (SearchableInfo sInfo:searchableInfos) {
                if (sInfo.getSuggestAuthority()!=null&&sInfo.getSuggestAuthority().startsWith("application")) {
                    searchableInfo=sInfo;
                }
            }

        }
        //Sets the SearchableInfo for this SearchView.
        //Properties in the SearchableInfo are used to display
        //labels, hints, suggestions, create intents
        //for launching search results screens and controlling other affordances such as a voice button.
        searchView.setSearchableInfo(searchableInfo);


    }

    @Override
    public boolean onQueryTextChange(String newText) {
        // TODO Auto-generated method stub
        return false;
    }

    @Override
    public boolean onQueryTextSubmit(String query) {
        // TODO Auto-generated method stub
        textView.append(query);
        return false;
    }

}

由于本人水平有限，错在所误难免，欢迎批评指正。