IM 模块中经常用到字母索引 ListView 来做通讯录或者称联系人列表, 今天跟大家分享一个仿微信联系人索引列表, 优点是轻量级,简单易懂. 不要任何依赖 , jar包等

效果预览

工程结构

使用的时候把 pinyin 这个包全部拷贝过去即可, 只需要改一下泛型为自己的 bean , bean 这里需要注意的是除了需要有自己的逻辑的字段以外还需要有 private String letters; 这个字母字段

code

右侧按住滑动索引列表的自定义控件:

public class SideBar extends View {//触摸事件private OnTouchingLetterChangedListener onTouchingLetterChangedListener;// 26个字母  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", "#" };  //选中private int choose = -1;private Paint paint = new Paint();private TextView mTextDialog;/*** 为SideBar显示字母的TextView* * @param mTextDialog*/public void setTextView(TextView mTextDialog){this.mTextDialog = mTextDialog;}public SideBar(Context context, AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);}public SideBar(Context context, AttributeSet attrs) {super(context, attrs);}public SideBar(Context context) {super(context);}/*** * 重写的onDraw的方法* */@Overrideprotected void onDraw(Canvas canvas) {super.onDraw(canvas);int height = getHeight();//获取对应的高度int width = getWidth();//获取对应的宽度int singleHeight = height/b.length;//获取每一个字母的高度for (int i = 0; i < b.length; i++) {paint.setColor(Color.rgb(00, 00, 00));  // 所有字母的默认颜色 目前为黑paint.setTypeface(Typeface.DEFAULT_BOLD);paint.setAntiAlias(true);paint.setTextSize(20);  //默认字体的大小//选中的状态if (i == choose) {paint.setColor(Color.parseColor("#FFFFFF")); //选中字母的颜色 目前为白paint.setFakeBoldText(true);//设置是否为粗体文字}//x坐标等于=中间-字符串宽度的一般float xPos = width / 2- paint.measureText(b[i])/2;float yPos = singleHeight*i + singleHeight;canvas.drawText(b[i], xPos, yPos, paint);paint.reset();//重置画笔}}@Overridepublic boolean dispatchTouchEvent(MotionEvent event) {final int action = event.getAction();final float y = event.getY();//点击y坐标final int oldChoose = choose;final OnTouchingLetterChangedListener listener = onTouchingLetterChangedListener;final int c = (int)(y / getHeight() * b.length);//点击y坐标所占高度的比例*b数组的长度就等于点击b中的个数switch (action) {case MotionEvent.ACTION_UP:setBackgroundDrawable(new ColorDrawable(0x00000000));//设置背景颜色choose = -1;invalidate();if (mTextDialog != null) {mTextDialog.setVisibility(View.INVISIBLE);}break;default:setBackgroundResource(R.drawable.rp_sidebar_background); // 点击字母条的背景颜色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;}/*** 向外松开的方法* * @param onTouchingLetterChangedListener*/public void setOnTouchingLetterChangedListener(OnTouchingLetterChangedListener onTouchingLetterChangedListener) {this.onTouchingLetterChangedListener = onTouchingLetterChangedListener;}/*** * 接口* * @author **/public interface OnTouchingLetterChangedListener {public void onTouchingLetterChanged(String s);}}

汉字转拼音的类：

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;}/** * 汉字转成ASCII码 * * @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;}/** * 单字解析 * * @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;}/** * 词组解析 * * @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());}}

主逻辑代码

public class MainActivity extends AppCompatActivity implements View.OnClickListener {private EditText mSearch;private ListView mListView;private List<Friend> dataLsit = new ArrayList<>();private List<Friend> sourceDataList = new ArrayList<>();/*** 好友列表的 adapter*/private FriendAdapter adapter;/*** 右侧好友指示 Bar*/private SideBar mSidBar;/*** 中部展示的字母提示*/public TextView dialog;/*** 汉字转换成拼音的类*/private CharacterParser characterParser;/*** 根据拼音来排列ListView里面的数据类*/private PinyinComparator pinyinComparator;private LayoutInflater infalter;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();initData();if (dataLsit != null && dataLsit.size() > 0) {sourceDataList = filledData(dataLsit); //过滤数据为有字母的字段  现在有字母 别的数据没有}//还原除了带字母字段的其他数据for (int i = 0; i < dataLsit.size(); i++) {sourceDataList.get(i).setName(dataLsit.get(i).getName());}dataLsit = null; //释放资源// 根据a-z进行排序源数据Collections.sort(sourceDataList, pinyinComparator);infalter = LayoutInflater.from(this);View headView = infalter.inflate(R.layout.item_contact_list_header,null);RelativeLayout re_newfriends = (RelativeLayout) headView.findViewById(R.id.re_newfriends);re_newfriends.setOnClickListener(this);adapter = new FriendAdapter(this, sourceDataList);mListView.addHeaderView(headView);mListView.setAdapter(adapter);mSearch.addTextChangedListener(new TextWatcher() {@Overridepublic void beforeTextChanged(CharSequence s, int start, int count, int after) {}@Overridepublic void onTextChanged(CharSequence s, int start, int before, int count) {//当输入框里面的值为空，更新为原来的列表，否则为过滤数据列表filterData(s.toString());}@Overridepublic void afterTextChanged(Editable s) {}});}private void initView() {//实例化汉字转拼音类characterParser = CharacterParser.getInstance();pinyinComparator = PinyinComparator.getInstance();mSearch = (EditText) findViewById(R.id.search);mListView = (ListView) findViewById(R.id.listview);mSidBar = (SideBar) findViewById(R.id.sidrbar);dialog = (TextView) findViewById(R.id.dialog);mSidBar.setTextView(dialog);//设置右侧触摸监听mSidBar.setOnTouchingLetterChangedListener(new SideBar.OnTouchingLetterChangedListener() {@Overridepublic void onTouchingLetterChanged(String s) {//该字母首次出现的位置int position = adapter.getPositionForSection(s.charAt(0));if (position != -1) {mListView.setSelection(position);}}});}private void initData() {
//        dataLsit.add(new Friend("%" + ));for (int i = 0; i < 20; i++) {if (i % 2 == 0) {dataLsit.add(new Friend("阿" + i));} else {dataLsit.add(new Friend("北" + i));}}for (int i = 0; i < 20; i++) {if (i % 2 == 0) {dataLsit.add(new Friend("陈" + i));} else {dataLsit.add(new Friend("杜" + i));}}for (int i = 0; i < 20; i++) {if (i % 2 == 0) {dataLsit.add(new Friend("鹅" + i));} else {dataLsit.add(new Friend("房" + i));}}for (int i = 0; i < 20; i++) {if (i % 2 == 0) {dataLsit.add(new Friend("高" + i));} else {dataLsit.add(new Friend("何" + i));}}for (int i = 0; i < 20; i++) {if (i % 2 == 0) {dataLsit.add(new Friend("李" + i));} else {dataLsit.add(new Friend("周" + i));}}for (int i = 0; i < 20; i++) {if (i % 2 == 0) {dataLsit.add(new Friend(i + "张"));} else {dataLsit.add(new Friend(i + "杨"));}}}public TextView getDialog() {return dialog;}public void setDialog(TextView dialog) {this.dialog = dialog;}/*** 根据输入框中的值来过滤数据并更新ListView** @param filterStr*/private void filterData(String filterStr) {List<Friend> filterDateList = new ArrayList<Friend>();if (TextUtils.isEmpty(filterStr)) {filterDateList = sourceDataList;} else {filterDateList.clear();for (Friend friendModel : sourceDataList) {String name = friendModel.getName();if (name.indexOf(filterStr.toString()) != -1 || characterParser.getSelling(name).startsWith(filterStr.toString())) {filterDateList.add(friendModel);}}}// 根据a-z进行排序Collections.sort(filterDateList, pinyinComparator);adapter.updateListView(filterDateList);}/*** 为ListView填充数据** @param* @return*/private List<Friend> filledData(List<Friend> lsit) {List<Friend> mFriendList = new ArrayList<Friend>();for (int i = 0; i < lsit.size(); i++) {Friend friendModel = new Friend();friendModel.setName(lsit.get(i).getName());//汉字转换成拼音String pinyin = characterParser.getSelling(lsit.get(i).getName());String sortString = pinyin.substring(0, 1).toUpperCase();// 正则表达式，判断首字母是否是英文字母if (sortString.matches("[A-Z]")) {friendModel.setLetters(sortString.toUpperCase());} else {friendModel.setLetters("#");}mFriendList.add(friendModel);}return mFriendList;}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.re_newfriends:Toast.makeText(this, "新朋友页面", Toast.LENGTH_SHORT).show();break;}}
}

initData 代码不用关心此处是模拟数据, 还有一部分的不重要代码这边就不一一列举了 . 下方会附上源码下载地址

对于代码更进一步优化和封装的朋友希望可以联系我, 让大家一起收益

点击下载源码

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仿微信联系人索引列表ListView

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