glmis项目工作日志3_联系人字母表_RecyclerView实现GridView

目前正在做管理员的手机端，管理员只有“新建考勤”功能。我重新改了布局，主界面做成类似支付宝那种的网格布局，使用RecyclerView来实现GridView的形式。每次点击新建考勤都会在新建考勤后面的格子插入的考勤记录同时进入含有教师名字列表的考勤页，为了快速定位老师的位置，我使用了类似手机联系人列表的右侧的字母表。效果如图。

RecyclerView实现GridView效果

如果我们想要一个GridView形式的RecyclerView，那么在LayoutManager上我们就要使用GridLayoutManager

 //实例化Adapter并且给RecyclerView设上
        final MyRecyclerViewAdapter adapter = new MyRecyclerViewAdapter(dataList);
        mRecyclerView.setAdapter(adapter);

        // 如果我们想要一个GridView形式的RecyclerView，那么在LayoutManager上我们就要使用GridLayoutManager
        // 实例化一个GridLayoutManager，列数为3
        final GridLayoutManager layoutManager = new GridLayoutManager(getActivity(), 3);

        adapter.setOnItemClickLitener(new MyRecyclerViewAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(View view, int position) {
                //position==0项为新建考勤，点击后在其后面添加一项
                if (position == 0) {
                    adapter.addData(1);//每次的新添加的考勤都在新建考勤后面
                    //将主菜单的Fragment添加到Activity中
                    if(savedInstanceState == null) {
                        AddAttendanceFragment addAttendanceFragment = new AddAttendanceFragment();
                        //向容器中添加Fragment
                        transaction.replace(R.id.container, addAttendanceFragment);
                        transaction.addToBackStack(null);
                        transaction.commit();//提交事务
                    }
                } else {
                    Toast.makeText(getActivity(), position + "click", Toast.LENGTH_SHORT).show();
                }
            }

自定义Adapter,Adapter内有一个OnItemClickListener接口，如果设置了回调则在onBindViewHolder内设置点击事件。

 public void onBindViewHolder(final MyViewHolder holder, int position) {
        holder.getTextView().setText(dataList.get(position));

        // 如果设置了回调，则设置点击事件
        if (mOnItemClickListener != null) {
            holder.itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    int pos = holder.getLayoutPosition();
                    mOnItemClickListener.onItemClick(holder.itemView, pos);
                }
            });

            holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View v) {
                    int pos = holder.getLayoutPosition();
                    mOnItemClickListener.onItemLongClick(holder.itemView, pos);
                    return false;
                }
            });
        }
    }

联系人字母表

首先要有一个自定义View来作为右侧的字母表，SiderbarView

public String[] arrLetters = {"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 OnLetterClickedListener listener = null;
    private TextView textView_dialog;
    private int isChoosedPosition = -1;

    public void setTextView(TextView textView) {
        textView_dialog = textView;
    }

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

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        // 当前view的宽度
        int width = getWidth();
        // 当前view的高度
        int height = getHeight();
        // 当前view中每个字母所占的高度
        int singleTextHeight = height / arrLetters.length;

        Paint paint = new Paint();
        paint.setAntiAlias(true);
        paint.setTypeface(Typeface.DEFAULT);
        for (int i = 0; i < arrLetters.length; i++) {
            paint.setTextSize(40);//设置字体大小
            paint.setColor(Color.RED);
            if (i == isChoosedPosition) {
                paint.setColor(Color.TRANSPARENT);//设置背景透明
                paint.setFakeBoldText(true);
            }
            float x = (width - paint.measureText(arrLetters[i])) / 2;
            float y = singleTextHeight * (i + 1);
            canvas.drawText(arrLetters[i], x, y, paint);
            paint.reset();
        }
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        float y = event.getY();
        int position = (int) (y / getHeight() * arrLetters.length);
        int lastChoosedPosition = isChoosedPosition;
        switch (event.getAction()) {
            case MotionEvent.ACTION_UP:
                setBackgroundColor(Color.TRANSPARENT);//手指离开时将颜色重新设置回透明
                if (textView_dialog != null) {
                    textView_dialog.setVisibility(View.GONE);
                }
                isChoosedPosition = -1;
                invalidate();
                break;
            default:
                // 触摸边框背景颜色改变
                setBackgroundColor(Color.parseColor("#ffddcc"));
                if (lastChoosedPosition != position) {
                    if (position >= 0 && position < arrLetters.length) {
                        if (listener != null) {
                            listener.onLetterClicked(arrLetters[position]);
                        }
                        if (textView_dialog != null) {
                            textView_dialog.setVisibility(View.VISIBLE);
                            textView_dialog.setText(arrLetters[position]);
                        }
                        isChoosedPosition = position;
                        invalidate();
                    }
                }
                break;
        }
        return true;
    }

    public interface OnLetterClickedListener {
        void onLetterClicked(String str);
    }

    public void setOnLetterClickedListener(OnLetterClickedListener listener) {
        this.listener = listener;
    }

还需要汉字转拼音的帮助类

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 ChineseToPinyinHelper characterParser = new ChineseToPinyinHelper();

    public static ChineseToPinyinHelper 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 getPinyin(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.getPinyin(this.getResource());
    }

之后在fragment内进行比较

        Collections.sort(totallList, new Comparator() {
            @Override
            public int compare(UserModel lhs, UserModel rhs) {
                if (lhs.getFirstLetter().equals("#")) {
                    return 1;
                } else if (rhs.getFirstLetter().equals("#")) {
                    return -1;
                } else {
                    return lhs.getFirstLetter().compareTo(rhs.getFirstLetter());
                }
            }
        });