<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:layout_margin="15dp"
 android:orientation="vertical"
 tools:context="com.airsaid.searchviewdemo.MainActivity">

 <SearchView
  android:id="@+id/searchView"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:iconifiedByDefault="false"
  android:queryHint="请输入搜索内容" />

 <ListView
  android:id="@+id/listView"
  android:layout_width="match_parent"
  android:layout_height="0dp"
  android:layout_weight="1" />
</LinearLayout>

public class MainActivity extends AppCompatActivity {

 private String[] mStrs = {"aaa", "bbb", "ccc", "airsaid"};
 private SearchView mSearchView;
 private ListView mListView;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  mSearchView = (SearchView) findViewById(R.id.searchView);
  mListView = (ListView) findViewById(R.id.listView);
  mListView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mStrs));
  mListView.setTextFilterEnabled(true);

  // 设置搜索文本监听
  mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
   // 当点击搜索按钮时触发该方法
   @Override
   public boolean onQueryTextSubmit(String query) {
    return false;
   }

   // 当搜索内容改变时触发该方法
   @Override
   public boolean onQueryTextChange(String newText) {
    if (!TextUtils.isEmpty(newText)){
     mListView.setFilterText(newText);
    }else{
     mListView.clearTextFilter();
    }
    return false;
   }
  });

 }
}