Android的搜索框SearchView的用法-android学习之旅（三十九）

SearchView简介

SearchView是搜索框组件，他可以让用户搜索文字，然后显示。‘

代码示例

这个示例加了衣蛾ListView用于为SearchView增加自动补全的功能。

package peng.liu.test;

import android.app.Activity;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CalendarView;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.GridView;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.NumberPicker;
import android.widget.SearchView;
import android.widget.SimpleAdapter;
import android.widget.TextSwitcher;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.Toast;
import android.widget.ViewFlipper;
import android.widget.ViewSwitcher;

import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


public class MainActivity extends Activity implements SearchView.OnQueryTextListener{
    private String[] strs = new String[]{
            "java","python","html"
    };
    private ListView list;
    private SearchView searchView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        list = (ListView) findViewById(R.id.list);
        list.setAdapter(new ArrayAdapter<String >(this,android.R.layout.simple_list_item_1,strs));
        list.setTextFilterEnabled(true);
        searchView = (SearchView) findViewById(R.id.sv);
        searchView.setIconifiedByDefault(false);
        searchView.setOnQueryTextListener(this);
        searchView.setSubmitButtonEnabled(true);
        searchView.setQueryHint("查找");

    }

    @Override
    public boolean onQueryTextSubmit(String s) {
        Toast.makeText(this,"搜索的字符"+s,Toast.LENGTH_LONG).show();
        return false;
    }

    @Override
    public boolean onQueryTextChange(String s) {
        if (TextUtils.isEmpty(s)){
            list.clearTextFilter();
        }else{
            list.setFilterText(s);
        }
        return true;
    }
}

<?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:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".MainActivity"
android:orientation="vertical"
    >
    <SearchView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/sv"/>
    <ListView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:id="@+id/list"
        android:layout_weight="1"
        />
</LinearLayout>

效果图