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Android端:从引导页到注册(三)

Android端:从引导页到注册(三)

作者: 予你挚终_cc3a | 来源:发表于2018-02-02 11:10 被阅读0次

    (三)城市列表排序

    今天要实现的功能是城市列表排序的功能,先上一张效果图。


    image.png
    image.png

    基本上就是上面那样,点击城市地区将会跳转到选择城市和地区界面,在此界面点击你选择的城市将会跳转到输入手机号界面但此时的城市和地区将会变成你所选择的那个城市,废话不多说直接上代码。

    1.首先在values目录下新建arrays.xml文件,此文件放的就是我们的城市列表

    arrays.xml

    <?xml version="1.0" encoding="utf-8"?>
    <resources>
        <string-array name="date">
            <item>北京</item>
            <item>香港</item>
            <item>澳门</item>
            <item>天津</item>
            <item>重庆</item>
            <item>青岛</item>
            <item>珠海</item>
            <item>哈尔滨</item>
            <item>安庆</item>
            <item>鞍山</item>
            <item>阿克苏</item>
            <item>阿勒泰</item>
            <item>安康</item>
            <item>北京南苑</item>
            <item>保山</item>
            <item>包头</item>
            <item>北海</item>
            <item>蚌埠</item>
            <item>重庆</item>
            <item>成都</item>
            <item>长沙</item>
            <item>长春</item>
            <item>常德</item>
            <item>长治</item>
            <item>常州</item>
            <item>朝阳</item>
            <item>赤峰</item>
            <item>大连</item>
            <item>敦煌</item>
            <item>大理</item>
            <item>达县</item>
            <item>东营</item>
            <item>丹东</item>
            <item>大同</item>
            <item>恩施</item>
            <item>福州</item>
            <item>阜阳</item>
            <item>富蕴</item>
            <item>广州</item>
            <item>桂林</item>
            <item>贵阳</item>
            <item>格尔木</item>
            <item>广汉</item>
            <item>赣州</item>
            <item>海口</item>
            <item>杭州</item>
            <item>合肥</item>
            <item>黄山</item>
            <item>呼和浩特</item>
            <item>海拉尔</item>
            <item>哈密</item>
            <item>汉中</item>
            <item>黑河</item>
            <item>衡阳</item>
            <item>和田</item>
            <item>黄岩</item>
            <item>吉林</item>
            <item>济南</item>
            <item>九江</item>
            <item>九寨黄龙</item>
            <item>吉安</item>
            <item>佳木斯</item>
            <item>嘉峪关</item>
            <item>济宁</item>
            <item>景德镇</item>
            <item>景洪</item>
            <item>晋江</item>
            <item>锦州</item>
            <item>酒泉</item>
            <item>昆明</item>
            <item>克拉玛依</item>
            <item>喀什</item>
            <item>库尔勒</item>
            <item>库车</item>
            <item>洛阳</item>
            <item>兰州</item>
            <item>拉萨</item>
            <item>连云港</item>
            <item>丽江</item>
            <item>临沂</item>
            <item>柳州</item>
            <item>泸州</item>
            <item>芒市</item>
            <item>梅县</item>
            <item>绵阳</item>
            <item>牡丹江</item>
            <item>满洲里</item>
            <item>南京</item>
            <item>宁波</item>
            <item>南昌</item>
            <item>南宁</item>
            <item>南通</item>
            <item>南充</item>
            <item>南阳</item>
            <item>秦皇岛</item>
            <item>齐齐哈尔</item>
            <item>泉州</item>
            <item>衢州</item>
            <item>且末</item>
            <item>庆阳</item>
            <item>沈阳</item>
            <item>深圳</item>
            <item>上海虹桥</item>
            <item>上海浦东</item>
            <item>汕头</item>
            <item>石家庄</item>
            <item>苏州</item>
            <item>三亚</item>
            <item>沙市</item>
            <item>思茅</item>
            <item>塔城</item>
            <item>太原</item>
            <item>通化</item>
            <item>通辽</item>
            <item>铜仁</item>
            <item>温州</item>
            <item>武汉</item>
            <item>武汉王家</item>
            <item>无锡</item>
            <item>乌鲁木齐</item>
            <item>威海</item>
            <item>梧州</item>
            <item>万县</item>
            <item>潍坊</item>
            <item>乌兰浩特</item>
            <item>武夷山</item>
            <item>厦门</item>
            <item>徐州</item>
            <item>西宁</item>
            <item>西昌</item>
            <item>襄樊</item>
            <item>锡林浩特</item>
            <item>银川</item>
            <item>延安</item>
            <item>延吉</item>
            <item>烟台</item>
            <item>盐城</item>
            <item>宜宾</item>
            <item>宜昌</item>
            <item>伊宁</item>
            <item>义乌</item>
            <item>永州</item>
            <item>榆林</item>
            <item>珠海</item>
            <item>昭通</item>
            <item>张家界</item>
            <item>湛江</item>
            <item>芷江</item>
            <item>中甸</item>
            <item>舟山</item>
            <item>遵义</item>
            <item>郑州</item>
        </string-array>
    </resources>
    
    新建CityData.class文件

    CityData.class

    public class CityData {
        private String name;//城市的名称
        private String fristA;//城市的首字母
        //封装
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public String getFristA() {
            return fristA;
        }
        public void setFristA(String fristA) {
            this.fristA = fristA;
        }
    }
    
    新建AutoSplitTextView.class文件

    AutoSplitTextView.class

    
    import android.content.Context;
    import android.graphics.Paint;
    import android.text.TextUtils;
    import android.util.AttributeSet;
    import android.widget.TextView;
    
    /**
     * Created by MyWang on 2018/1/17.
     */
    
    public class AutoSplitTextView extends android.support.v7.widget.AppCompatTextView {
        private boolean mEnabled = true;
    
        public AutoSplitTextView(Context context) {
            super(context);
        }
    
        public AutoSplitTextView(Context context, AttributeSet attrs) {
            super(context, attrs);
        }
    
        public AutoSplitTextView(Context context, AttributeSet attrs, int defStyle) {
            super(context, attrs, defStyle);
        }
    
        public void setAutoSplitEnabled(boolean enabled) {
            mEnabled = enabled;
        }
    
        @Override
        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
            if (MeasureSpec.getMode(widthMeasureSpec) == MeasureSpec.EXACTLY
                    && MeasureSpec.getMode(heightMeasureSpec) == MeasureSpec.EXACTLY
                    && getWidth() > 0
                    && getHeight() > 0
                    && mEnabled) {
                String newText = autoSplitText(this);
                if (!TextUtils.isEmpty(newText)) {
                    setText(newText);
                }
            }
            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        }
    
        private String autoSplitText(final TextView tv) {
            final String rawText = tv.getText().toString(); //原始文本
            final Paint tvPaint = tv.getPaint(); //paint,包含字体等信息
            final float tvWidth = tv.getWidth() - tv.getPaddingLeft() - tv.getPaddingRight(); //控件可用宽度
    
            //将原始文本按行拆分
            String [] rawTextLines = rawText.replaceAll("\r", "").split("\n");
            StringBuilder sbNewText = new StringBuilder();
            for (String rawTextLine : rawTextLines) {
                if (tvPaint.measureText(rawTextLine) <= tvWidth) {
                    //如果整行宽度在控件可用宽度之内,就不处理了
                    sbNewText.append(rawTextLine);
                } else {
                    //如果整行宽度超过控件可用宽度,则按字符测量,在超过可用宽度的前一个字符处手动换行
                    float lineWidth = 0;
                    for (int cnt = 0; cnt != rawTextLine.length(); ++cnt) {
                        char ch = rawTextLine.charAt(cnt);
                        lineWidth += tvPaint.measureText(String.valueOf(ch));
                        if (lineWidth <= tvWidth) {
                            sbNewText.append(ch);
                        } else {
                            sbNewText.append("\n");
                            lineWidth = 0;
                            --cnt;
                        }
                    }
                }
                sbNewText.append("\n");
            }
    
            //把结尾多余的\n去掉
            if (!rawText.endsWith("\n")) {
                sbNewText.deleteCharAt(sbNewText.length() - 1);
            }
    
            return sbNewText.toString();
        }
    }
    
    
    新建CharacterParser.class文件

    CharacterParser.class

    
    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());
        }
    
    }
    
    新建getCityList.class文件

    getCityList.class

    
    import com.example.mywang.qqproject.bean.CityData;
    
    import java.util.ArrayList;
    import java.util.List;
    
    /**
     * Created by MyWang on 2018/1/17.
     */
    
    public class getCityList {
        private CharacterParser characterParser;
        public getCityList(CharacterParser characterParser) {
            super();
            this.characterParser = characterParser;
        }
        /**
         * 为ListView填充数据
         *
         * @param date
         * @return
         */
        public List<CityData> filledData(String[] date) {
            List<CityData> mSortList = new ArrayList<CityData>();
    
            for (int i = 0; i < date.length; i++) {
                CityData cityData = new CityData();
                cityData.setName(date[i]);
                // 汉字转换成拼音
                String pinyin = characterParser.getSelling(date[i]);
                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]")) {
                    cityData.setFristA(sortString.toUpperCase());
                } else {
                    cityData.setFristA("#");
                }
                mSortList.add(cityData);
            }
            return mSortList;
        }
    }
    
    
    新建PinyinComparator.class文件

    PinyinComparator.class

    
    import com.example.mywang.qqproject.bean.CityData;
    
    import java.util.Comparator;
    
    /**
     * Created by MyWang on 2018/1/17.
     */
    
    public class PinyinComparator implements Comparator<CityData> {
        public int compare(CityData o1, CityData o2) {
            if (o1.getFristA().equals("@")
                    || o2.getFristA().equals("#")) {
                return -1;
            } else if (o1.getFristA().equals("#")
                    || o2.getFristA().equals("@")) {
                return 1;
            } else {
                return o1.getFristA().compareTo(o2.getFristA());
            }
        }
    
    }
    
    
    新建SharedPreafesUtils.class文件

    SharedPreafesUtils.class

    
    import android.content.Context;
    import android.content.SharedPreferences;
    
    /**
     * Created by MyWang on 2018/1/15.
     */
    
    public class SharedPreafesUtils {
        private static final String FILE_NAME="share_data";
    
        public static void setParem(Context context, String key, Object object){
            String type = object.getClass().getSimpleName();
            SharedPreferences sp = context.getSharedPreferences(FILE_NAME,Context.MODE_PRIVATE);
            SharedPreferences.Editor editor = sp.edit();
            if ("String".equals(type)){
                editor.putString(key,(String)object);
            }else if ("Boolean".equals(type)){
                editor.putBoolean(key,(Boolean)object);
            }else if ("Float".equals(type)){
                editor.putFloat(key,(Float)object);
            }else if ("Long".equals(type)){
                editor.putLong(key,(Long)object);
            }else if ("Integer".equals(type)){
                editor.putInt(key,(Integer)object);
            }
            editor.commit();
        }
    
        public static Object getParem(Context context,String key,Object defaultobject){
            String type = defaultobject.getClass().getSimpleName();
            SharedPreferences sp = context.getSharedPreferences(FILE_NAME,Context.MODE_PRIVATE);
            if ("String".equals(type)){
                return sp.getString(key,(String)defaultobject);
            }else if ("Boolean".equals(type)){
                return sp.getBoolean(key,(Boolean)defaultobject);
            }else if ("Float".equals(type)){
                return sp.getFloat(key,(Float)defaultobject);
            }else if ("Long".equals(type)){
                return sp.getLong(key,(Long)defaultobject);
            }else if ("Integer".equals(type)){
                return sp.getInt(key,(Integer)defaultobject);
            }
    
            return null;
        }
    }
    
    
    新建Adapter

    MyCityAdapter.class

    
    import android.content.Context;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.BaseAdapter;
    import android.widget.TextView;
    
    import com.example.mywang.qqproject.R;
    import com.example.mywang.qqproject.bean.CityData;
    
    import java.util.List;
    
    /**
     * Created by MyWang on 2018/1/17.
     */
    
    public class MyCityAdapter extends BaseAdapter {
        private Context context;
        private List<CityData> list=null;
        //生成构造
        public MyCityAdapter(Context context, List<CityData> list) {
            super();
            this.context = context;
            this.list = list;
        }
    
        /**
         * 当ListView数据发生变化时,调用此方法来更新ListView
         * @param list
         */
        public void updateListView(List<CityData> list){
            this.list = list;
            notifyDataSetChanged();
        }
    
        @Override
        public int getCount() {
            return list.size();
        }
    
        @Override
        public Object getItem(int position) {
            return list.get(position);
        }
    
        @Override
        public long getItemId(int position) {
            return position;
        }
    
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder viewHolder = null;
            final CityData mContent = list.get(position);
            if (convertView == null) {
                viewHolder = new ViewHolder();
                convertView = LayoutInflater.from(context).inflate(R.layout.contype_item, null);
                viewHolder.tvTitle = (TextView) convertView.findViewById(R.id.titles);
                viewHolder.tvLetter = (TextView) convertView.findViewById(R.id.catalog);
                convertView.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }
    
            //根据position获取分类的首字母的Char ascii值
            int section = getSectionForPosition(position);
    
            //如果当前位置等于该分类首字母的Char的位置 ,则认为是第一次出现
            if(position == getPositionForSection(section)){
                viewHolder.tvLetter.setVisibility(View.VISIBLE);
                viewHolder.tvLetter.setText(mContent.getFristA());
            }else{
                viewHolder.tvLetter.setVisibility(View.GONE);
            }
    
            viewHolder.tvTitle.setText(this.list.get(position).getName());
    
            return convertView;
    
        }
    
        final static class ViewHolder {
            TextView tvLetter;
            TextView tvTitle;
        }
    
    
        /**
         * 根据ListView的当前位置获取分类的首字母的Char ascii值
         */
        public int getSectionForPosition(int position) {
            return list.get(position).getFristA().charAt(0);
        }
    
        /**
         * 根据分类的首字母的Char ascii值获取其第一次出现该首字母的位置
         */
        public int getPositionForSection(int section) {
            for (int i = 0; i < getCount(); i++) {
                String sortStr = list.get(i).getFristA();
                char firstChar = sortStr.toUpperCase().charAt(0);
                if (firstChar == section) {
                    return i;
                }
            }
    
            return -1;
        }
    
        /**
         * 提取英文的首字母,非英文字母用#代替。
         *
         * @param str
         * @return
         */
        private String getAlpha(String str) {
            String  sortStr = str.trim().substring(0, 1).toUpperCase();
            // 正则表达式,判断首字母是否是英文字母
            if (sortStr.matches("[A-Z]")) {
                return sortStr;
            } else {
                return "#";
            }
        }
    
        public Object[] getSections() {
            return null;
        }
    
    }
    
    
    接下来就是新建一个Activity,首先是xml文件

    activity_city.xml

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:orientation="vertical"
        android:background="#FFFFFF"
        android:paddingBottom="10dp"
        android:layout_height="match_parent"
        tools:context="com.example.mywang.qqproject.activity.CityActivity">
        <ImageView
            android:id="@+id/city_return"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@mipmap/rt"
            android:layout_marginTop="20dp"
            />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="选择城市和地区"
            android:textSize="35sp"
            android:layout_marginLeft="20dp"
            android:layout_marginRight="20dp"
            android:textColor="#000000"
            />
        <ListView
            android:id="@+id/lv"
            android:layout_marginLeft="25dp"
            android:layout_marginRight="25dp"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="center"
            android:layout_marginTop="10dp"
            android:divider="@null"
            ></ListView>
    </LinearLayout>
    
    

    这里面是用的listView 所以我们要新建一个ListView的模板新建文件
    contype_item.xml

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical" android:layout_width="match_parent"
        android:layout_height="match_parent"
        >
        <TextView
            android:id="@+id/catalog"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:textColor="#454545"
            android:layout_weight="1.0"
            android:paddingLeft="5dip"
            android:paddingTop="5dip"
            android:paddingBottom="5dip"
            android:text="A"/>
    
        <TextView
            android:id="@+id/titles"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_gravity="center_vertical"
            android:gravity="center_vertical"
            android:layout_weight="1.0"
            android:textColor="#000000"
            android:textSize="20sp"
            android:layout_marginLeft="5dip"
            android:paddingTop="10dip"
            android:paddingBottom="10dip"
            android:text="hhhh"/>
    
    </LinearLayout>
    
    最后就是Activity

    CityActivity.class

    
    import android.content.Intent;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.AdapterView;
    import android.widget.ImageView;
    import android.widget.ListView;
    import android.widget.TextView;
    import android.widget.Toast;
    
    import com.example.mywang.qqproject.Adapter.MyCityAdapter;
    import com.example.mywang.qqproject.BaseActivity;
    import com.example.mywang.qqproject.R;
    import com.example.mywang.qqproject.bean.CityData;
    import com.example.mywang.qqproject.utils.CharacterParser;
    import com.example.mywang.qqproject.utils.PinyinComparator;
    import com.example.mywang.qqproject.utils.SharedPreafesUtils;
    import com.example.mywang.qqproject.utils.getCityList;
    
    import java.util.ArrayList;
    import java.util.Collections;
    import java.util.List;
    
    public class CityActivity extends BaseActivity {
    
        private ListView lv;//列表的控件
        private ImageView city_return;
        private MyCityAdapter adapter;//适配器
        private List<CityData> citylist;//列表集合
        /**
         * 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;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_city);
            initData();
            SharedPreafesUtils.setParem(CityActivity.this,"cityActTrue",true);
        }
    
        private void initData() {
            // 绑定控件
            lv = (ListView) findViewById(R.id.lv);
            //返回按钮
            city_return = (ImageView)findViewById(R.id.city_return);
            city_return.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Intent intent = new Intent(CityActivity.this,NewUserActivity.class);
                    startActivity(intent);
                    CityActivity.this.finish();
                }
            });
            // 实例化汉字转拼音类
            characterParser = CharacterParser.getInstance();
            pinyinComparator = new PinyinComparator();
            getCity();
    
        }
        /**
         * 获得城市列表并添加到适配器
         */
        private void getCity() {
            // 获取城市的信息
            getCityList cityList = new getCityList(characterParser);
            // 获得城市的数据列表
            citylist = cityList.filledData(getResources().getStringArray(R.array.date));
            // 根据a-z进行排序源数据
            Collections.sort(citylist, pinyinComparator);
            adapter = new MyCityAdapter(CityActivity.this, citylist);
            lv.setAdapter(adapter);
            lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    CityData cityData = (CityData)adapter.getItem(position);
                    Intent intent = new Intent(CityActivity.this,NewUserActivity.class);
                    SharedPreafesUtils.setParem(CityActivity.this,"city",cityData.getName());
                    startActivity(intent);
                    CityActivity.this.finish();
                }
            });
        }
    
        @Override
        public void onBackPressed() {
            super.onBackPressed();
            Intent intent = new Intent(CityActivity.this,NewUserActivity.class);
            startActivity(intent);
            CityActivity.this.finish();
        }
    }
    
    
    基本上到这里就已经大功告成了。

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