- package com.example.searchview2;
- import android.os.Bundle;
- import android.app.Activity;
- import android.text.TextUtils;
- import android.view.Menu;
- import android.widget.ArrayAdapter;
- import android.widget.ListView;
- import android.widget.SearchView;
- import android.widget.TextView;
- public class MainActivity extends Activity implements SearchView.OnQueryTextListener{
- ListView listView;
- SearchView searchView;
- String[] names;
- ArrayAdapter<String> adapter;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- names=new String[]{"aa","ddf","qw","sd","fd","as","cf","re","fg"};
- listView=(ListView) findViewById(R.id.list);
- searchView=(SearchView) findViewById(R.id.searchView);
- //Note that the Adapter used by this view must implement the Filterable interface.
- listView.setAdapter(adapter=new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_expandable_list_item_1,names));
- //设置当在搜索栏里输入内容时,内容在一个小框框中显示(类似textview),若没有这行代码则没有这样的效果
- listView.setTextFilterEnabled(true);
- //setIconifiedByDefault为true时,searchview不是展开的,当为false时searchview一开始就是展开的
- searchView.setIconifiedByDefault(true);
- searchView.setOnQueryTextListener(this);
- searchView.setSubmitButtonEnabled(false);
- searchView.setQueryHint("INPUT");
- }
- @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
- //TextUtils.isEmpty(string)判断()里面string是否为空,或者为0字节
- //若为空或0字节则返回false,否则为true
- if (TextUtils.isEmpty(newText)) {
- //Clear the text filter.
- listView.clearTextFilter();
- }else {
- //Sets the initial value for the text filter.
- listView.setFilterText(newText.toString());
- }
- return false;
- }
- @Override
- public boolean onQueryTextSubmit(String query) {
- // TODO Auto-generated method stub
- return false;
- }
- }