android EditText+ListView的组合（类似于AutoCompleteTextView）

很好的帖子：

eoeWiki客户端（android版）1.0.0版正式发布～
http://www.eoeandroid.com/thread-194188-1-1.html

Android定时自动启动应用程序应用教程
http://www.eoeandroid.com/thread-194271-1-1.html

基于Android 随手记
http://www.eoeandroid.com/thread-194031-1-1.html

 

因为问这个问题的人很多，所以刚刚找了下代码，结果还手动的把他提取出来。好了废话不多说了。直接上代码。

package ki.test.edit_list;

 

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

 

import android.content.Context;

import android.database.sqlite.SQLiteDatabase;

import android.os.Environment;

 

public class DBManager {

        private final int BUFFER_SIZE = 40000;

        public static final String DB_NAME = "city.db"; // 保存的数据库文件名

        public static final String PACKAGE_NAME = "ki.test.edit_list";

        public static final String DB_PATH = "/data"

                        + Environment.getDataDirectory().getAbsolutePath() + "/"

                        + PACKAGE_NAME; // 在手机里存放数据库的位置

 

        private SQLiteDatabase database;

        private Context context;

 

        public DBManager(Context context) {

                this.context = context;

        }

 

        SQLiteDatabase db = null;

 

        public SQLiteDatabase getDatabase(){

                try {

                        openDatabase();

                } catch (IOException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                return db;

        }

         

        private void openDatabase() throws IOException {

                String dbfile = DB_PATH + "/" + DB_NAME;

 

                if (!(new File(dbfile).exists())) {// 判断数据库文件是否存在，若不存在则执行导入，否则直接打开数据库

                        InputStream is = this.context.getResources().openRawResource(

                                        R.raw.city); // 欲导入的数据库

                        FileOutputStream fos = new FileOutputStream(dbfile);

                        byte[] buffer = new byte[BUFFER_SIZE];

                        int count = 0;

                        while ((count = is.read(buffer)) > 0) {

                                fos.write(buffer, 0, count);

                        }

                        fos.close();

                        is.close();

                }

 

                db = SQLiteDatabase.openDatabase(dbfile, null,

                                SQLiteDatabase.OPEN_READWRITE);

        }

 

        public void closeDatabase() {

                this.database.close();

        }

         

         

}

package ki.test.edit_list;

 

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

 

import android.app.Activity;

import android.content.SharedPreferences;

import android.database.Cursor;

import android.database.sqlite.SQLiteDatabase;

import android.os.Bundle;

import android.text.Editable;

import android.text.TextWatcher;

import android.util.Log;

import android.view.View;

import android.widget.*;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.AdapterView.OnItemSelectedListener;

 

public class SearchCity extends Activity implements OnItemClickListener, TextWatcher {

 

        public static List<Map<String, String>> City_Lists = new ArrayList<Map<String, String>>();

 

        private List<Map<String, String>> defaultLists = new ArrayList<Map<String, String>>();

         

        private List<Map<String, String>> lists = new ArrayList<Map<String, String>>();

 

 

        private final String NAME = "name";

        private final String PARENT_NAME = "parent_name";

 

         

        // sql 语句

        private final String sql_Head = "select b.name , a.name from city a inner join (select _id ,name from city) b on a.parent_id = b._id where dtype = 'area' and a.name like '";

        private String str_Sql = "";

        private final String sql_Foot = "%'";

 

        private EditText edit_search_city;

        private SQLiteDatabase db;

        private Cursor result;

        private SearchCity city = this;

        private ListView listView;

 

        @Override

        protected void onCreate(Bundle savedInstanceState) {

                // TODO Auto-generated method stub

                super.onCreate(savedInstanceState);

                setContentView(R.layout.search);

 

                initControl();

                initDefaultLists();

                listView.setOnItemClickListener(this);

 

                edit_search_city.addTextChangedListener(this);

 

        }

 

        void initControl() {

                edit_search_city = (EditText) findViewById(R.id.edit_search);

                listView = (ListView) findViewById(R.id.listview);

        }

 

        private void initDefaultLists() {

                Map<String, String> map = new HashMap<String, String>();

                map.put(NAME, getString(R.string.nocity));

                defaultLists.add(map);

        }

 

        public boolean getLists(String edit_content) {

                str_Sql = sql_Head + edit_content + sql_Foot;

                db = new DBManager(city).getDatabase();

                result = db.rawQuery(str_Sql, null);

                if (result.moveToFirst()) {

                        while (!result.isAfterLast()) {

                                Map<String, String> map = new HashMap<String, String>();

                                String name = result.getString(1);

                                String parent_name = result.getString(0);

                                if (name.equals(parent_name))

                                        parent_name = "";

                                map.put(NAME, name);

                                map.put(PARENT_NAME, parent_name);

                                lists.add(map);

                                result.moveToNext();

                        }

                        City_Lists = lists;

                        result.close();

                        db.close();

                        return true;

                }

                db.close();

                return false;

        }

 

        @Override

        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                String put_Content = City_Lists.get(position).get(NAME);

                Toast.makeText(getApplicationContext(), put_Content, 8000).show();

        }

 

        @Override

        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

 

        }

 

        @Override

        public void onTextChanged(CharSequence s, int start, int before, int count) {

                lists.clear();

                String edit_content = edit_search_city.getText().toString();

                if (edit_content.equals("")) {

                        return;

                }

                List<Map<String, String>> dataLists = null;

                dataLists =  getLists(edit_content) ? lists : defaultLists;

                ListAdapter adapter = new SimpleAdapter(city, dataLists, R.layout.listview, new String[] { NAME, PARENT_NAME }, new int[] { R.id.txt_list_1, R.id.txt_list_2 });

                listView.setAdapter(adapter);

        }

 

        @Override

        public void afterTextChanged(Editable s) {

 

        }

}

package ki.test.edit_list;

 

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

 

public class TestDemoActivity extends Activity {

        /** Called when the activity is first created. */

        @Override

        public void onCreate(Bundle savedInstanceState) {

                super.onCreate(savedInstanceState);

                setContentView(R.layout.main);

 

                startActivity(new Intent(getApplicationContext(), SearchCity.class));

        }

}

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="55px"

    android:orientation="horizontal" >

 

    <TextView

        android:id="@+id/txt_list_1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginLeft="8px"

        android:layout_marginRight="10px"

        android:textColor="#FFFFFF"

        android:textSize="30px" />

 

    <TextView

        android:layout_width="20px"

        android:layout_height="wrap_content"

        android:layout_marginRight="5px"

        android:text="--"

        android:textSize="20px" />

 

    <TextView

        android:id="@+id/txt_list_2"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:textSize="25px" />

 

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="400px"

    android:layout_height="500px"

    android:orientation="vertical" >

 

    <LinearLayout

        android:layout_width="fill_parent"

        android:layout_height="2px"

        android:background="#CCCCCC"

        android:layout_marginBottom="5px" />

 

    <EditText

        android:id="@+id/edit_search"

        android:layout_width="350px"

        android:layout_height="wrap_content"

        android:hint="Enter the city"/>

 

    <LinearLayout

        android:layout_width="fill_parent"

        android:layout_height="2px"

        android:background="#CCCCCC"

        android:layout_marginBottom="5px" />

     

   <LinearLayout

       android:id="@+id/linear_list"

       android:layout_width="match_parent"

       android:layout_height="match_parent">

       <ListView

           android:id="@+id/listview"

           android:layout_width="wrap_content"

           android:layout_height="wrap_content"></ListView>

        

   </LinearLayout>

 

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<resources>

 

    <string name="hello">Hello World, TestDemoActivity!</string>

    <string name="app_name">设置城市</string>

    <string name="nocity">没有找到你想查询的城市</string>

 

</resources>

其中由于是刚刚急着赶出来的 所以可能代码有些乱，但是主要看思路，另外我把源码 也上传了下。有不足地方请见晾。

 

 源码下载：TestDemo.rar