轉載請注明出處： http://blog.csdn.net/xiaanming/article/details/12684155

前段時間因為換工作的緣故又恰巧碰到國慶節，所以有段時間自己沒有更新博客了，過完國慶到新公司報道，感覺還不錯，就是現在住的地方離新公司有點遠，地鐵20站，傷不起啊，我每天早上7點多就要起床，然后屁顛屁顛的去擠地鐵上班，晚上下班還要擠地鐵，先不說路程遠，車費一天就要10幾塊，我的銀子啊，有坐龍華線去上班的深圳程序員不？聽說那條線上班高峰期很擠？我沒在上班高峰期坐過那趟車，我在民治那邊找了個房子，離華強北也不遠，關鍵房租便宜，哈哈，樂開花了，下個禮拜就要搬過去啦

不扯了，回到主題，今天給大家帶來ListView的A-Z字母排序和過濾搜索功能并且實現漢字轉成拼音的功能，我們知道一般我們對聯系人，城市列表等實現A-Z的排序，因為聯系人和城市列表我們可以直接從數據庫中獲取他的漢字拼音，而對于一般的數據，我們怎么實現A-Z的排序，我們需要將漢字轉換成拼音就行了，接下來就帶大家實現一般數據的A-Z排序功能，首先先看下效果圖

上面是一個帶刪除按鈕的EditText，我們在輸入框中輸入可以自動過濾出我們想要的東西，當輸入框中沒有數據自動替換到原來的數據列表，然后下面一個ListView用來顯示數據列表，右側是一個字母索引表，當我們點擊不同的字母,ListView會定位到該字母地方，了解了布局之后，我們先看下項目結構吧

我按照項目中類的順序來一一介紹其功能

1.SortModel 一個實體類，里面一個是ListView的name,另一個就是顯示的name拼音的首字母

    package com.example.sortlistview;

public class SortModel {

	private String name;   //顯示的數據
	private String sortLetters;  //顯示數據拼音的首字母
	
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getSortLetters() {
		return sortLetters;
	}
	public void setSortLetters(String sortLetters) {
		this.sortLetters = sortLetters;
	}
}

  

2.SideBar類就是ListView右側的字母索引View，我們需要使用setTextView(TextView mTextDialog)來設置用來顯示當前按下的字母的TextView,以及使用setOnTouchingLetterChangedListener方法來設置回調接口，在回調方法onTouchingLetterChanged(String s)中來處理不同的操作

    package com.example.sortlistview;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;

public class SideBar extends View {
	// 觸摸事件
	private OnTouchingLetterChangedListener onTouchingLetterChangedListener;
	// 26個字母
	public static String[] b = { "A", "B", "C", "D", "E", "F", "G", "H", "I",
			"J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V",
			"W", "X", "Y", "Z", "#" };
	private int choose = -1;// 選中
	private Paint paint = new Paint();

	private TextView mTextDialog;

	/**
	 * 為SideBar設置顯示字母的TextView
	 * @param mTextDialog
	 */
	public void setTextView(TextView mTextDialog) {
		this.mTextDialog = mTextDialog;
	}


	public SideBar(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);
	}

	public SideBar(Context context, AttributeSet attrs) {
		super(context, attrs);
	}

	public SideBar(Context context) {
		super(context);
	}

	/**
	 * 重寫這個方法
	 */
	protected void onDraw(Canvas canvas) {
		super.onDraw(canvas);
		// 獲取焦點改變背景顏色.
		int height = getHeight();// 獲取對應高度
		int width = getWidth(); // 獲取對應寬度
		int singleHeight = height / b.length;// 獲取每一個字母的高度

		for (int i = 0; i < b.length; i++) {
			paint.setColor(Color.rgb(33, 65, 98));
			// paint.setColor(Color.WHITE);
			paint.setTypeface(Typeface.DEFAULT_BOLD);
			paint.setAntiAlias(true);
			paint.setTextSize(20);
			// 選中的狀態
			if (i == choose) {
				paint.setColor(Color.parseColor("#3399ff"));
				paint.setFakeBoldText(true);
			}
			// x坐標等于中間-字符串寬度的一半.
			float xPos = width / 2 - paint.measureText(b[i]) / 2;
			float yPos = singleHeight * i + singleHeight;
			canvas.drawText(b[i], xPos, yPos, paint);
			paint.reset();// 重置畫筆
		}

	}

	@Override
	public boolean dispatchTouchEvent(MotionEvent event) {
		final int action = event.getAction();
		final float y = event.getY();// 點擊y坐標
		final int oldChoose = choose;
		final OnTouchingLetterChangedListener listener = onTouchingLetterChangedListener;
		final int c = (int) (y / getHeight() * b.length);// 點擊y坐標所占總高度的比例*b數組的長度就等于點擊b中的個數.

		switch (action) {
		case MotionEvent.ACTION_UP:
			setBackgroundDrawable(new ColorDrawable(0x00000000));
			choose = -1;//
			invalidate();
			if (mTextDialog != null) {
				mTextDialog.setVisibility(View.INVISIBLE);
			}
			break;

		default:
			setBackgroundResource(R.drawable.sidebar_background);
			if (oldChoose != c) {
				if (c >= 0 && c < b.length) {
					if (listener != null) {
						listener.onTouchingLetterChanged(b[c]);
					}
					if (mTextDialog != null) {
						mTextDialog.setText(b[c]);
						mTextDialog.setVisibility(View.VISIBLE);
					}
					
					choose = c;
					invalidate();
				}
			}

			break;
		}
		return true;
	}

	/**
	 * 向外公開的方法
	 * 
	 * @param onTouchingLetterChangedListener
	 */
	public void setOnTouchingLetterChangedListener(
			OnTouchingLetterChangedListener onTouchingLetterChangedListener) {
		this.onTouchingLetterChangedListener = onTouchingLetterChangedListener;
	}

	/**
	 * 接口
	 * 
	 * @author coder
	 * 
	 */
	public interface OnTouchingLetterChangedListener {
		public void onTouchingLetterChanged(String s);
	}

}
  

3.CharacterParser這個類是將漢字轉換成拼音的類，該拼音沒有聲調的，該類是單例類，其中定義了三個方法，在這個demo中用到的是getSelling(String chs)方法，將詞組轉換成拼音

    package com.example.sortlistview;

/**
 * Java漢字轉換為拼音
 * 
 */
public class CharacterParser {
	private static int[] pyvalue = new int[] {-20319, -20317, -20304, -20295, -20292, -20283, -20265, -20257, -20242, -20230, -20051, -20036, -20032,
			-20026, -20002, -19990, -19986, -19982, -19976, -19805, -19784, -19775, -19774, -19763, -19756, -19751, -19746, -19741, -19739, -19728,
			-19725, -19715, -19540, -19531, -19525, -19515, -19500, -19484, -19479, -19467, -19289, -19288, -19281, -19275, -19270, -19263, -19261,
			-19249, -19243, -19242, -19238, -19235, -19227, -19224, -19218, -19212, -19038, -19023, -19018, -19006, -19003, -18996, -18977, -18961,
			-18952, -18783, -18774, -18773, -18763, -18756, -18741, -18735, -18731, -18722, -18710, -18697, -18696, -18526, -18518, -18501, -18490,
			-18478, -18463, -18448, -18447, -18446, -18239, -18237, -18231, -18220, -18211, -18201, -18184, -18183, -18181, -18012, -17997, -17988,
			-17970, -17964, -17961, -17950, -17947, -17931, -17928, -17922, -17759, -17752, -17733, -17730, -17721, -17703, -17701, -17697, -17692,
			-17683, -17676, -17496, -17487, -17482, -17468, -17454, -17433, -17427, -17417, -17202, -17185, -16983, -16970, -16942, -16915, -16733,
			-16708, -16706, -16689, -16664, -16657, -16647, -16474, -16470, -16465, -16459, -16452, -16448, -16433, -16429, -16427, -16423, -16419,
			-16412, -16407, -16403, -16401, -16393, -16220, -16216, -16212, -16205, -16202, -16187, -16180, -16171, -16169, -16158, -16155, -15959,
			-15958, -15944, -15933, -15920, -15915, -15903, -15889, -15878, -15707, -15701, -15681, -15667, -15661, -15659, -15652, -15640, -15631,
			-15625, -15454, -15448, -15436, -15435, -15419, -15416, -15408, -15394, -15385, -15377, -15375, -15369, -15363, -15362, -15183, -15180,
			-15165, -15158, -15153, -15150, -15149, -15144, -15143, -15141, -15140, -15139, -15128, -15121, -15119, -15117, -15110, -15109, -14941,
			-14937, -14933, -14930, -14929, -14928, -14926, -14922, -14921, -14914, -14908, -14902, -14894, -14889, -14882, -14873, -14871, -14857,
			-14678, -14674, -14670, -14668, -14663, -14654, -14645, -14630, -14594, -14429, -14407, -14399, -14384, -14379, -14368, -14355, -14353,
			-14345, -14170, -14159, -14151, -14149, -14145, -14140, -14137, -14135, -14125, -14123, -14122, -14112, -14109, -14099, -14097, -14094,
			-14092, -14090, -14087, -14083, -13917, -13914, -13910, -13907, -13906, -13905, -13896, -13894, -13878, -13870, -13859, -13847, -13831,
			-13658, -13611, -13601, -13406, -13404, -13400, -13398, -13395, -13391, -13387, -13383, -13367, -13359, -13356, -13343, -13340, -13329,
			-13326, -13318, -13147, -13138, -13120, -13107, -13096, -13095, -13091, -13076, -13068, -13063, -13060, -12888, -12875, -12871, -12860,
			-12858, -12852, -12849, -12838, -12831, -12829, -12812, -12802, -12607, -12597, -12594, -12585, -12556, -12359, -12346, -12320, -12300,
			-12120, -12099, -12089, -12074, -12067, -12058, -12039, -11867, -11861, -11847, -11831, -11798, -11781, -11604, -11589, -11536, -11358,
			-11340, -11339, -11324, -11303, -11097, -11077, -11067, -11055, -11052, -11045, -11041, -11038, -11024, -11020, -11019, -11018, -11014,
			-10838, -10832, -10815, -10800, -10790, -10780, -10764, -10587, -10544, -10533, -10519, -10331, -10329, -10328, -10322, -10315, -10309,
			-10307, -10296, -10281, -10274, -10270, -10262, -10260, -10256, -10254};
	public static String[] pystr = new String[] {"a", "ai", "an", "ang", "ao", "ba", "bai", "ban", "bang", "bao", "bei", "ben", "beng", "bi", "bian",
			"biao", "bie", "bin", "bing", "bo", "bu", "ca", "cai", "can", "cang", "cao", "ce", "ceng", "cha", "chai", "chan", "chang", "chao", "che",
			"chen", "cheng", "chi", "chong", "chou", "chu", "chuai", "chuan", "chuang", "chui", "chun", "chuo", "ci", "cong", "cou", "cu", "cuan",
			"cui", "cun", "cuo", "da", "dai", "dan", "dang", "dao", "de", "deng", "di", "dian", "diao", "die", "ding", "diu", "dong", "dou", "du",
			"duan", "dui", "dun", "duo", "e", "en", "er", "fa", "fan", "fang", "fei", "fen", "feng", "fo", "fou", "fu", "ga", "gai", "gan", "gang",
			"gao", "ge", "gei", "gen", "geng", "gong", "gou", "gu", "gua", "guai", "guan", "guang", "gui", "gun", "guo", "ha", "hai", "han", "hang",
			"hao", "he", "hei", "hen", "heng", "hong", "hou", "hu", "hua", "huai", "huan", "huang", "hui", "hun", "huo", "ji", "jia", "jian",
			"jiang", "jiao", "jie", "jin", "jing", "jiong", "jiu", "ju", "juan", "jue", "jun", "ka", "kai", "kan", "kang", "kao", "ke", "ken",
			"keng", "kong", "kou", "ku", "kua", "kuai", "kuan", "kuang", "kui", "kun", "kuo", "la", "lai", "lan", "lang", "lao", "le", "lei", "leng",
			"li", "lia", "lian", "liang", "liao", "lie", "lin", "ling", "liu", "long", "lou", "lu", "lv", "luan", "lue", "lun", "luo", "ma", "mai",
			"man", "mang", "mao", "me", "mei", "men", "meng", "mi", "mian", "miao", "mie", "min", "ming", "miu", "mo", "mou", "mu", "na", "nai",
			"nan", "nang", "nao", "ne", "nei", "nen", "neng", "ni", "nian", "niang", "niao", "nie", "nin", "ning", "niu", "nong", "nu", "nv", "nuan",
			"nue", "nuo", "o", "ou", "pa", "pai", "pan", "pang", "pao", "pei", "pen", "peng", "pi", "pian", "piao", "pie", "pin", "ping", "po", "pu",
			"qi", "qia", "qian", "qiang", "qiao", "qie", "qin", "qing", "qiong", "qiu", "qu", "quan", "que", "qun", "ran", "rang", "rao", "re",
			"ren", "reng", "ri", "rong", "rou", "ru", "ruan", "rui", "run", "ruo", "sa", "sai", "san", "sang", "sao", "se", "sen", "seng", "sha",
			"shai", "shan", "shang", "shao", "she", "shen", "sheng", "shi", "shou", "shu", "shua", "shuai", "shuan", "shuang", "shui", "shun",
			"shuo", "si", "song", "sou", "su", "suan", "sui", "sun", "suo", "ta", "tai", "tan", "tang", "tao", "te", "teng", "ti", "tian", "tiao",
			"tie", "ting", "tong", "tou", "tu", "tuan", "tui", "tun", "tuo", "wa", "wai", "wan", "wang", "wei", "wen", "weng", "wo", "wu", "xi",
			"xia", "xian", "xiang", "xiao", "xie", "xin", "xing", "xiong", "xiu", "xu", "xuan", "xue", "xun", "ya", "yan", "yang", "yao", "ye", "yi",
			"yin", "ying", "yo", "yong", "you", "yu", "yuan", "yue", "yun", "za", "zai", "zan", "zang", "zao", "ze", "zei", "zen", "zeng", "zha",
			"zhai", "zhan", "zhang", "zhao", "zhe", "zhen", "zheng", "zhi", "zhong", "zhou", "zhu", "zhua", "zhuai", "zhuan", "zhuang", "zhui",
			"zhun", "zhuo", "zi", "zong", "zou", "zu", "zuan", "zui", "zun", "zuo"};
	private StringBuilder buffer;
	private String resource;
	private static CharacterParser characterParser = new CharacterParser();

	public static CharacterParser getInstance() {
		return characterParser;
	}

	public String getResource() {
		return resource;
	}

	public void setResource(String resource) {
		this.resource = resource;
	}

	/** * 漢字轉成ASCII碼 * * @param chs * @return */
	private int getChsAscii(String chs) {
		int asc = 0;
		try {
			byte[] bytes = chs.getBytes("gb2312");
			if (bytes == null || bytes.length > 2 || bytes.length <= 0) {
				throw new RuntimeException("illegal resource string");
			}
			if (bytes.length == 1) {
				asc = bytes[0];
			}
			if (bytes.length == 2) {
				int hightByte = 256 + bytes[0];
				int lowByte = 256 + bytes[1];
				asc = (256 * hightByte + lowByte) - 256 * 256;
			}
		} catch (Exception e) {
			System.out.println("ERROR:ChineseSpelling.class-getChsAscii(String chs)" + e);
		}
		return asc;
	}

	/** * 單字解析 * * @param str * @return */
	public String convert(String str) {
		String result = null;
		int ascii = getChsAscii(str);
		if (ascii > 0 && ascii < 160) {
			result = String.valueOf((char) ascii);
		} else {
			for (int i = (pyvalue.length - 1); i >= 0; i--) {
				if (pyvalue[i] <= ascii) {
					result = pystr[i];
					break;
				}
			}
		}
		return result;
	}

	/** * 詞組解析 * * @param chs * @return */
	public String getSelling(String chs) {
		String key, value;
		buffer = new StringBuilder();
		for (int i = 0; i < chs.length(); i++) {
			key = chs.substring(i, i + 1);
			if (key.getBytes().length >= 2) {
				value = (String) convert(key);
				if (value == null) {
					value = "unknown";
				}
			} else {
				value = key;
			}
			buffer.append(value);
		}
		return buffer.toString();
	}

	public String getSpelling() {
		return this.getSelling(this.getResource());
	}

}

  

4.ClearEditText類是自定義的一個在右側有刪除圖片的EditText，當然你也可以用Android原生的EditText，該類我之前有介紹，我這里就不貼上代碼了 Android 帶清除功能的輸入框控件ClearEditText,仿IOS的輸入框

5.SortAdapter 數據的適配器類，該類需要實現SectionIndexer接口，該接口是用來控制ListView分組的，該接口有三個方法getSectionForPosition(int position)，getPositionForSection(int section)，getSections()，我們只需要自行實現前面兩個方法

• getSectionForPosition(int position)是根據ListView的position來獲取該位置上面的name的首字母c har的 ascii值，例如： 如果該position上面的name是阿妹，首字母就是A，那么此方法返回的就是'A'字母的 ascii值，也就是65， 'B'是66，依次類推
• getPositionForSection(int section)就是根據首字母的 ascii值來獲取在該ListView中第一次出現 該首字母的位置，例如：從上面的效果圖1中，如果 section是65 ，也就是‘B’的 ascii值，那么該方法返回的position就是2

然后就是getView()方法，首先我們根據ListView的position調用getSectionForPosition(int position)來獲取該位置上面name的首字母的ascii值,然后根據這個ascii值調用getPositionForSection(int section)來獲取第一次出現該首字母的position，如果ListView的position 等于根據這個ascii值調用getPositionForSection(int section)來獲取第一次出現該首字母的position，則顯示分類字母 否則隱藏

    package com.example.sortlistview;

import java.util.List;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.SectionIndexer;
import android.widget.TextView;

public class SortAdapter extends BaseAdapter implements SectionIndexer{
	private List<SortModel> list = null;
	private Context mContext;
	
	public SortAdapter(Context mContext, List<SortModel> list) {
		this.mContext = mContext;
		this.list = list;
	}
	
	/**
	 * 當ListView數據發生變化時,調用此方法來更新ListView
	 * @param list
	 */
	public void updateListView(List<SortModel> list){
		this.list = list;
		notifyDataSetChanged();
	}

	public int getCount() {
		return this.list.size();
	}

	public Object getItem(int position) {
		return list.get(position);
	}

	public long getItemId(int position) {
		return position;
	}

	public View getView(final int position, View view, ViewGroup arg2) {
		ViewHolder viewHolder = null;
		final SortModel mContent = list.get(position);
		if (view == null) {
			viewHolder = new ViewHolder();
			view = LayoutInflater.from(mContext).inflate(R.layout.item, null);
			viewHolder.tvTitle = (TextView) view.findViewById(R.id.title);
			viewHolder.tvLetter = (TextView) view.findViewById(R.id.catalog);
			view.setTag(viewHolder);
		} else {
			viewHolder = (ViewHolder) view.getTag();
		}
		
		//根據position獲取分類的首字母的char ascii值
		int section = getSectionForPosition(position);
		
		//如果當前位置等于該分類首字母的Char的位置 ，則認為是第一次出現
		if(position == getPositionForSection(section)){
			viewHolder.tvLetter.setVisibility(View.VISIBLE);
			viewHolder.tvLetter.setText(mContent.getSortLetters());
		}else{
			viewHolder.tvLetter.setVisibility(View.GONE);
		}
	
		viewHolder.tvTitle.setText(this.list.get(position).getName());
		
		return view;

	}
	


	final static class ViewHolder {
		TextView tvLetter;
		TextView tvTitle;
	}


	/**
	 * 根據ListView的當前位置獲取分類的首字母的char ascii值
	 */
	public int getSectionForPosition(int position) {
		return list.get(position).getSortLetters().charAt(0);
	}

	/**
	 * 根據分類的首字母的Char ascii值獲取其第一次出現該首字母的位置
	 */
	public int getPositionForSection(int section) {
		for (int i = 0; i < getCount(); i++) {
			String sortStr = list.get(i).getSortLetters();
			char firstChar = sortStr.toUpperCase().charAt(0);
			if (firstChar == section) {
				return i;
			}
		}
		
		return -1;
	}
	

	@Override
	public Object[] getSections() {
		return null;
	}
}
  

6.MainActivity這里面的代碼比較簡單，我們對ClearEditText設置addTextChangedListener監聽，當輸入框內容發生變化根據里面的值過濾ListView，里面的值為空顯示原來的列表，里面對列表數據進行排序用到PinyinComparator接口，該接口主要是用來比較對象的

    package com.example.sortlistview;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.sortlistview.SideBar.OnTouchingLetterChangedListener;

public class MainActivity extends Activity {
	private ListView sortListView;
	private SideBar sideBar;
	/**
	 * 顯示字母的TextView
	 */
	private TextView dialog;
	private SortAdapter adapter;
	private ClearEditText mClearEditText;
	
	/**
	 * 漢字轉換成拼音的類
	 */
	private CharacterParser characterParser;
	private List<SortModel> SourceDateList;
	
	/**
	 * 根據拼音來排列ListView里面的數據類
	 */
	private PinyinComparator pinyinComparator;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		initViews();
	}

	private void initViews() {
		//實例化漢字轉拼音類
		characterParser = CharacterParser.getInstance();
		
		pinyinComparator = new PinyinComparator();
		
		sideBar = (SideBar) findViewById(R.id.sidrbar);
		dialog = (TextView) findViewById(R.id.dialog);
		sideBar.setTextView(dialog);
		
		//設置右側觸摸監聽
		sideBar.setOnTouchingLetterChangedListener(new OnTouchingLetterChangedListener() {
			
			@Override
			public void onTouchingLetterChanged(String s) {
				//該字母首次出現的位置
				int position = adapter.getPositionForSection(s.charAt(0));
				if(position != -1){
					sortListView.setSelection(position);
				}
				
			}
		});
		
		sortListView = (ListView) findViewById(R.id.country_lvcountry);
		sortListView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
				//這里要利用adapter.getItem(position)來獲取當前position所對應的對象
				Toast.makeText(getApplication(), ((SortModel)adapter.getItem(position)).getName(), Toast.LENGTH_SHORT).show();
			}
		});
		
		SourceDateList = filledData(getResources().getStringArray(R.array.date));
		
		// 根據a-z進行排序源數據
		Collections.sort(SourceDateList, pinyinComparator);
		adapter = new SortAdapter(this, SourceDateList);
		sortListView.setAdapter(adapter);
		
		
		mClearEditText = (ClearEditText) findViewById(R.id.filter_edit);
		
		//根據輸入框輸入值的改變來過濾搜索
		mClearEditText.addTextChangedListener(new TextWatcher() {
			
			@Override
			public void onTextChanged(CharSequence s, int start, int before, int count) {
				//當輸入框里面的值為空，更新為原來的列表，否則為過濾數據列表
				filterData(s.toString());
			}
			
			@Override
			public void beforeTextChanged(CharSequence s, int start, int count,
					int after) {
				
			}
			
			@Override
			public void afterTextChanged(Editable s) {
			}
		});
	}


	/**
	 * 為ListView填充數據
	 * @param date
	 * @return
	 */
	private List<SortModel> filledData(String [] date){
		List<SortModel> mSortList = new ArrayList<SortModel>();
		
		for(int i=0; i<date.length; i++){
			SortModel sortModel = new SortModel();
			sortModel.setName(date[i]);
			//漢字轉換成拼音
			String pinyin = characterParser.getSelling(date[i]);
			String sortString = pinyin.substring(0, 1).toUpperCase();
			
			// 正則表達式，判斷首字母是否是英文字母
			if(sortString.matches("[A-Z]")){
				sortModel.setSortLetters(sortString.toUpperCase());
			}else{
				sortModel.setSortLetters("#");
			}
			
			mSortList.add(sortModel);
		}
		return mSortList;
		
	}
	
	/**
	 * 根據輸入框中的值來過濾數據并更新ListView
	 * @param filterStr
	 */
	private void filterData(String filterStr) {
		List<SortModel> filterDateList = new ArrayList<SortModel>();

		if (TextUtils.isEmpty(filterStr)) {
			filterDateList = SourceDateList;
		} else {
			filterDateList.clear();
			for (SortModel sortModel : SourceDateList) {
				String name = sortModel.getName();
				if (name.toUpperCase().indexOf(
						filterStr.toString().toUpperCase()) != -1
						|| characterParser.getSelling(name).toUpperCase()
								.startsWith(filterStr.toString().toUpperCase())) {
					filterDateList.add(sortModel);
				}
			}
		}
		
		// 根據a-z進行排序
		Collections.sort(filterDateList, pinyinComparator);
		adapter.updateListView(filterDateList);
	}
	
}
  

7.PinyinComparator接口用來對ListView中的數據根據A-Z進行排序，前面兩個if判斷主要是將不是以漢字開頭的數據放在后面

    package com.example.sortlistview;

import java.util.Comparator;

/**
 * 
 * @author xiaanming
 *
 */
public class PinyinComparator implements Comparator<SortModel> {

	public int compare(SortModel o1, SortModel o2) {
		//這里主要是用來對ListView里面的數據根據ABCDEFG...來排序
		if (o2.getSortLetters().equals("#")) {
			return -1;
		} else if (o1.getSortLetters().equals("#")) {
			return 1;
		} else {
			return o1.getSortLetters().compareTo(o2.getSortLetters());
		}
	}
}
  

這樣我們以后使用A-Z排序就沒要局限性了，想加這個效果隨時都行，其他的布局和圖片之類的文件就不貼出來了，如果大家有興趣的自行去下載代碼吧，如果大家有什么疑問，請在下面留言，我會為大家解答的！

項目源碼，點擊下載

Android實現ListView的A-Z字母排序和過濾搜索功能，實現漢字轉成拼音