Android搜索框组件SearchView的基本使用方法

searchview是android系统中内置的一个搜索框组件，可以很方便在添加在用户界面之上，但是也带来了一些问题，那就是searchview的ui是固定的，定制起来会很麻烦，如果对searchview的要求比较高，完全可以采用button和edittext自己实现。这里先简单的说说searchview的使用：

main.xml:

<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:orientation="vertical"
 tools:context=".main" >

 <searchview
  android:id="@+id/sv"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:imeoptions="actiongo" />

</linearlayout>

在显示suggestion的时候会用到下面的布局文件:mytextview.xml

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="50sp"
 android:orientation="vertical" >

 <textview
  android:id="@+id/textview"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:gravity="center_vertical"
  android:paddingleft="5sp"
  android:textsize="18sp" />

</linearlayout>

main.java:

package com.app.main;

import java.lang.reflect.field;

import android.app.activity;
import android.database.cursor;
import android.database.sqlite.sqlitedatabase;
import android.os.bundle;
import android.view.view;
import android.widget.imageview;
import android.widget.listview;
import android.widget.searchview;
import android.widget.searchview.onquerytextlistener;
import android.widget.simplecursoradapter;
import android.widget.toast;

public class main extends activity {

 searchview sv = null;
 listview lv = null;

 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.main);

  sv = (searchview) this.findviewbyid(r.id.sv);

  sv.seticonifiedbydefault(false);

  sv.setsubmitbuttonenabled(true);

  sv.setqueryhint("查询");

   //通过反射，修改默认的样式，可以从android的search_view.xml中找到需要的组件
  
  try {
   field field = sv.getclass().getdeclaredfield("msubmitbutton");

   field.setaccessible(true);

   imageview iv = (imageview) field.get(sv);

   iv.setimagedrawable(this.getresources().getdrawable(
     r.drawable.pointer));


  } catch (exception e) {

   e.printstacktrace();
  }

  cursor cursor = this.gettestcursor();

  @suppresswarnings("deprecation")
  simplecursoradapter adapter = new simplecursoradapter(this,
    r.layout.mytextview, cursor, new string[] { "tb_name" },
    new int[] { r.id.textview });

  sv.setsuggestionsadapter(adapter);

  sv.setonquerytextlistener(new onquerytextlistener() {

   @override
   public boolean onquerytextchange(string str) {

    return false;
   }

   @override
   public boolean onquerytextsubmit(string str) {

    toast.maketext(main.this, str, toast.length_short).show();

    return false;
   }

  });

 }
 
//添加suggestion需要的数据
 public cursor gettestcursor() {

  sqlitedatabase db = sqlitedatabase.openorcreatedatabase(
    this.getfilesdir() + "/my.db3", null);

  cursor cursor = null;
  try {

   string insertsql = "insert into tb_test values (null,?,?)";

   db.execsql(insertsql, new object[] { "aa", 1 });

   db.execsql(insertsql, new object[] { "ab", 2 });

   db.execsql(insertsql, new object[] { "ac", 3 });

   db.execsql(insertsql, new object[] { "ad", 4 });

   db.execsql(insertsql, new object[] { "ae", 5 });

   string querysql = "select * from tb_test";

   cursor = db.rawquery(querysql, null);

  } catch (exception e) {

   string sql = "create table tb_test (_id integer primary key autoincrement,tb_name varchar(20),tb_age integer)";

   db.execsql(sql);

   string insertsql = "insert into tb_test values (null,?,?)";

   db.execsql(insertsql, new object[] { "aa", 1 });

   db.execsql(insertsql, new object[] { "ab", 2 });

   db.execsql(insertsql, new object[] { "ac", 3 });

   db.execsql(insertsql, new object[] { "ad", 4 });

   db.execsql(insertsql, new object[] { "ae", 5 });

   string querysql = "select * from tb_test";

   cursor = db.rawquery(querysql, null);
  }

  return cursor;
 }

}

实现的效果如下：

以上就是搜索框组件searchview的基本使用方法，希望能给大家一个参考，也希望大家多多支持。