SearchViewApplication

package com.example.searchviewapplication;
/*API生单词：  submit  提交  ，递交    query  询问，查询     iconify 图标化，图符化   collapsible ：可折叠菜单项
 * 
 * 
 * <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >


    <SearchView                                    //定义一个搜索框，一个listView
        android:id="@+id/sv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        >
        
    </SearchView>
    <ListView 
        android:id="@+id/lv"
     
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        ></ListView>


</LinearLayout>


 * 
 * 
 * 
 */


import android.os.Bundle;
import android.app.Activity;
import android.text.TextUtils;
import android.view.Gravity;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.SearchView.OnQueryTextListener;


public class MainActivity extends Activity implements SearchView.OnQueryTextListener{  //实现查询事件监听
     private SearchView sv;  
     private ListView lv;
     private final String[] mStrings={"aaaaaaa","bbbbbbb","cccccccc"};
@Override       
protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv=(ListView)findViewById(R.id.lv);
//定义List里的内容，通过new ArrayAdapter《String》（）提供内容
lv.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,mStrings));
lv.setTextFilterEnabled(true);   //定义过滤器
sv=(SearchView)findViewById(R.id.sv);
sv.setIconifiedByDefault(false);        //定义搜索框图标化
sv.setOnQueryTextListener((OnQueryTextListener) this); // 绑定事件监听器
sv.setSubmitButtonEnabled(true);  //提供搜索按钮
sv.setQueryHint("搜索");     

}



@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);

return true;
}




@Override
public boolean onQueryTextChange(String newText) {
// TODO Auto-generated method stub
if(TextUtils.isEmpty(newText)){
lv.clearTextFilter();
}else{
lv.setFilterText(newText);
}
return true;
}




@Override
public boolean onQueryTextSubmit(String query) {
// TODO Auto-generated method stub
Toast toast=Toast.makeText(getApplicationContext(), "您的选择是：  "+query, Toast.LENGTH_SHORT);//返回值toast
        toast.setGravity(Gravity.CENTER, 0, 0);//设置吐司为居中
        toast.show();
return true;
}
}