自定义日历

效果如图

 

一、布局 main.xml

<?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="fill_parent"
    android:orientation="vertical" >
<RelativeLayout 
        android:id="@+id/main_head"
       android:orientation="horizontal" 
       android:layout_width="fill_parent"
    android:layout_height="38dp"
    android:background="@drawable/header_bg"
    android:layout_alignParentTop="true"
        >
        <TextView
        android:id="@+id/toptext"
        android:layout_width="80dp"
        android:layout_height="38dp"
        android:layout_centerInParent="true"
        android:gravity="center"
            />
        <Button 
        android:id="@+id/previous"
        android:layout_width="20dp"
        android:layout_height="20dp"
        android:layout_marginRight="20dp"
        android:layout_toLeftOf="@id/toptext"    
        android:layout_centerVertical="true"
        android:background="@drawable/previous_month"/>
        
    <Button 
        android:id="@+id/next"
        android:layout_toRightOf="@id/toptext"
        android:layout_width="20dp"
        android:layout_height="20dp"
        android:layout_marginLeft="20dp"
        android:layout_centerVertical="true"
        android:background="@drawable/next_month"
        />
    </RelativeLayout>
  <LinearLayout 
        android:id="@+id/main"
        android:layout_marginTop="18dp"
        android:orientation="vertical" 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</LinearLayout>

二、MainActivity

package com.ct.mycalendar;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import android.app.Activity;
import android.graphics.Color;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.view.Display;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AbsListView.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.ct.mycalendar.tool.CalendarView;

public class Calendar01Activity extends Activity {
    /** Called when the activity is first created. */
    private CalendarView calV = null;
    private GridView gridView = null;
    private TextView topText = null;
    private static int jumpMonth = 0;      //每次点击按钮，增加或减去一个月,默认为0（即显示当前月）
    private static int jumpYear = 0;       //点击超过一年，则增加或者减去一年,默认为0(即当前年)
    private int year_c = 0;
    private int month_c = 0;
    private int day_c = 0;
    private String currentDate = "";
    
    // 上一月和下一月的按钮
        Button previous;
        Button next;
        LinearLayout main;
        
        SimpleDateFormat format1 = new SimpleDateFormat("yyyy MM");
        SimpleDateFormat format2 = new SimpleDateFormat("MMM yyyy", Locale.US);
        
        public Calendar01Activity(){
            Date date = new Date();
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-M-d");
            currentDate  = sdf.format(date);
            year_c = Integer.parseInt(currentDate.split("-")[0]);
            month_c = Integer.parseInt(currentDate.split("-")[1]);
            day_c = Integer.parseInt(currentDate.split("-")[2]);
        }
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.main);
        
        calV = new CalendarView(this, getResources(),jumpMonth,jumpYear,year_c,month_c,day_c);
        addGridView();
        gridView.setAdapter(calV);
        previous = (Button) findViewById(R.id.previous);
        next = (Button) findViewById(R.id.next);
        
        main = (LinearLayout) findViewById(R.id.main);
        main.addView(gridView);
        
        topText = (TextView) findViewById(R.id.toptext);
        addTextToTopTextView(topText);
        
        previous.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v) 
            {
                getPreviousMonth();
            }
        });
        
        next.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v) 
            {
                getNextMonth();
            }
        });
        
        
    }
    
    private void addGridView(){
        WindowManager windowManager = getWindowManager();
        Display display = windowManager.getDefaultDisplay();
        int width = display.getWidth();
        int height = display.getHeight();
        
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
        
        gridView = new GridView(this);
        gridView.setNumColumns(7);
        gridView.setColumnWidth(46);
        
        if(width == 480 && height == 800){
            gridView.setColumnWidth(69);
        }
        gridView.setGravity(Gravity.CENTER_VERTICAL);
        gridView.setSelector(new ColorDrawable(Color.GRAY)); // 去除gridView边框
        gridView.setVerticalSpacing(1);
        gridView.setHorizontalSpacing(1);
        gridView.setBackgroundResource(R.color.light_gray_bg);
        gridView.setPadding(1, 1, 1, 1);
        
        gridView.setOnItemClickListener(new OnItemClickListener() {
            //gridView中的每一个item的点击事件
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int position,
                    long arg3) {
                
                String scheduleDay = calV.getDateByClickItem(position).split("\\.")[0];  //这一天的阳历
                String titleYear = calV.getShowYear();
                String titleMonth = calV.getShowMonth();
//                Toast.makeText(CalendarActivity.this,
//                        "被点击的日期 : " + titleYear + "年" + titleMonth + "月" + scheduleDay + "日",
//                        Toast.LENGTH_LONG).show();
                
                int startPosition = calV.getStartPositon();
                int endPosition = calV.getEndPosition();
                
                if(position >= startPosition && position <= endPosition)
                {
                    Toast.makeText(Calendar01Activity.this, "被点击的日期 : " + titleYear + "年" + titleMonth + "月" + scheduleDay + "日", Toast.LENGTH_LONG).show();
                }
                else if(position < startPosition)
                {
//                    Toast.makeText(CalendarActivity.this, "上一个月", Toast.LENGTH_LONG).show();
                    getPreviousMonth();
                }
                else if(position > endPosition)
                {
//                    Toast.makeText(CalendarActivity.this, "下一个月", Toast.LENGTH_LONG).show();
                    getNextMonth();
                }
                else
                {
                    Toast.makeText(Calendar01Activity.this, "No", Toast.LENGTH_LONG).show();
                }
            }
        });
        gridView.setLayoutParams(params);
        
    }
    
    private void getPreviousMonth(){
        jumpMonth--;
        calV = new CalendarView(Calendar01Activity.this, getResources(),jumpMonth,jumpYear,year_c,month_c,day_c);
        gridView.setAdapter(calV);
        addTextToTopTextView(topText);
    }
    
    private void getNextMonth(){
        jumpMonth++;
        calV = new CalendarView(Calendar01Activity.this, getResources(),jumpMonth,jumpYear,year_c,month_c,day_c);
        gridView.setAdapter(calV);
        addTextToTopTextView(topText);
    }
    
    private void addTextToTopTextView(TextView view){
        StringBuffer textDate = new StringBuffer();
        String datestr = calV.getShowYear() + " " + calV.getShowMonth();
        try{
            textDate.append(format2.format(format1.parse(datestr)));
        }catch (ParseException e){
            e.printStackTrace();
        }
        view.setText(textDate);
        view.setTextColor(Color.WHITE);
        view.setTypeface(Typeface.DEFAULT_BOLD);
        
    }
}

三、CalendarView

package com.ct.mycalendar.tool;


import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.text.SpannableString;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.ct.mycalendar.R;

/**
 * 日历gridview中的每一个item显示的textview
 * @author willm zhang
 *
 */
public class CalendarView extends BaseAdapter {



//    private ScheduleDAO dao = null;
    private boolean isLeapyear = false;  //是否为闰年
    private int daysOfMonth = 0;      //某月的天数
    private int dayOfWeek = 0;        //具体某一天是星期几
    private int lastDaysOfMonth = 0;  //上一个月的总天数
    private Context context;
    private String[] dayNumber = new String[49];  //一个gridview中的日期存入此数组中
    private SpecialCalendar sc = null;
    private Resources res = null;
    private Drawable drawable = null;
    
    private String currentYear = "";
    private String currentMonth = "";
    private String currentDay = "";
    
    private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-M-d");
    private int currentFlag = -1;     //用于标记当天
    private int[] schDateTagFlag = null;  //存储当月所有的日程日期
    
    private String showYear = "";   //用于在头部显示的年份
    private String showMonth = "";  //用于在头部显示的月份
    private String animalsYear = ""; 
    private String leapMonth = "";   //闰哪一个月
    private String cyclical = "";   //天干地支
    //系统当前时间
    private String sysDate = "";  
    private String sys_year = "";
    private String sys_month = "";
    private String sys_day = "";
    
    //日程时间(需要标记的日程日期)
    private String sch_year = "";
    private String sch_month = "";
    private String sch_day = "";
    
    SpecialCalendar spe = new SpecialCalendar();
    
    public CalendarView(){
        Date date = new Date();
        sysDate = sdf.format(date);  //当期日期
        sys_year = sysDate.split("-")[0];
        sys_month = sysDate.split("-")[1];
        sys_day = sysDate.split("-")[2];
    }

    public CalendarView(Context context,Resources rs,int jumpMonth,int jumpYear,int year_c,int month_c,int day_c){
        this();
        this.context= context;
        sc = new SpecialCalendar();
        this.res = rs;
        
        int stepYear = year_c+jumpYear;
        int stepMonth = month_c+jumpMonth ;
        if(stepMonth > 0){
            //往下一个月跳转
            if(stepMonth%12 == 0){
                stepYear = year_c + stepMonth/12 -1;
                stepMonth = 12;
            }else{
                stepYear = year_c + stepMonth/12;
                stepMonth = stepMonth%12;
            }
        }else{
            //往上一个月跳转
            stepYear = year_c - 1 + stepMonth/12;
            stepMonth = stepMonth%12 + 12;
            if(stepMonth%12 == 0){
                
            }
        }
        
        currentYear = String.valueOf(stepYear);;  //得到当前的年份
        currentMonth = String.valueOf(stepMonth);  //得到本月 （jumpMonth为跳动的次数，每滑动一次就增加一月或减一月）
        currentDay = String.valueOf(day_c);  //得到当前日期是哪天
        
        getCalendar(Integer.parseInt(currentYear),Integer.parseInt(currentMonth));
        
    }
    
    public CalendarView(Context context,Resources rs,int year, int month, int day){
        this();
        this.context= context;
        sc = new SpecialCalendar();
        this.res = rs;
        currentYear = String.valueOf(year);;  //得到跳转到的年份
        currentMonth = String.valueOf(month);  //得到跳转到的月份
        currentDay = String.valueOf(day);  //得到跳转到的天
        getCalendar(Integer.parseInt(currentYear),Integer.parseInt(currentMonth));
    }
    
    @Override
    public int getCount() {
        if(Integer.parseInt(currentMonth) == 2)
        {
            if(getStartPositon() == 0)
            {
                if(! spe.isLeapYear(Integer.parseInt(currentYear)))
                {
                    return 28;
                }
            }
            return 35;
        }
        return getStartPositon() <= 4 ? 35 : 42;
    }

    @Override
    public Object getItem(int position) {
        return position;
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        if(convertView == null){
            convertView = LayoutInflater.from(context).inflate(R.layout.calendar, null);
         }
        TextView textView = (TextView) convertView.findViewById(R.id.tvtext);
        String d = dayNumber[position].split("\\.")[0];
        SpannableString sp = new SpannableString(d);
        textView.setText(sp);
        textView.setTextColor(R.color.typeface_color_black);
        if (position < daysOfMonth + dayOfWeek && position >= dayOfWeek) {
            // 当前月信息显示
            textView.setTextColor(Color.BLACK);// 当月字体设黑
            drawable = res.getDrawable(R.color.calendar_bg);
            // textView.setBackgroundColor(Color.WHITE);
        }
        if(schDateTagFlag != null && schDateTagFlag.length >0){
            for(int i = 0; i < schDateTagFlag.length; i++){
                if(schDateTagFlag[i] == position){
                    System.out.println("=============schDateTagFlag" + "[" + i+ "]=="+ position );
                    //设置日程标记背景
                    textView.setBackgroundResource(R.drawable.marker);
                }
            }
        }
        if(currentFlag == position){ 
            //设置当天的背景
//            drawable = res.getDrawable(R.color.bule_bg);
//            textView.setBackgroundDrawable(drawable);
            textView.setBackgroundResource(R.drawable.selected);
            textView.setTextColor(Color.WHITE);
        }
        if(position < dayOfWeek || position >= daysOfMonth + dayOfWeek){
            //设置上一月和下一月的背景
//            drawable = res.getDrawable(Color.GRAY);
//            textView.setBackgroundDrawable(drawable);
            textView.setBackgroundResource(R.drawable.no_this_month);
            textView.setTextColor(Color.GRAY);
        }
        return convertView;
    }
    
    //得到某年的某月的天数且这月的第一天是星期几
    public void getCalendar(int year, int month){
        isLeapyear = sc.isLeapYear(year);              //是否为闰年
        daysOfMonth = sc.getDaysOfMonth(isLeapyear, month);  //某月的总天数
        dayOfWeek = sc.getWeekdayOfMonth(year, month);      //某月第一天为星期几
        lastDaysOfMonth = sc.getDaysOfMonth(isLeapyear, month-1);  //上一个月的总天数
        Log.d("DAY", isLeapyear+" ======  "+daysOfMonth+"  ============  "+dayOfWeek+"  =========   "+lastDaysOfMonth);
        getweek(year,month);
    }
    private ArrayList<ScheduleDateTag> getTagDate(int year, int month){
        ArrayList<ScheduleDateTag> dateTagList = new ArrayList<ScheduleDateTag>(){
            private static final long serialVersionUID = -5976649074350323408L;};
        int i = 0;
        while(i < 10){
            int tagID = i;
            int year1 = 2012;
            int month1 = 11;
            int day = 2*(i);
            int scheduleID = i;
            ScheduleDateTag dateTag = new ScheduleDateTag(tagID,year1,month1,day,scheduleID);
            dateTagList.add(dateTag);
            i++;
            }
        if(dateTagList != null && dateTagList.size() > 0){
            return dateTagList;
        }
        return null;
    }
    
    //将一个月中的每一天的值添加入数组dayNuber中
    private void getweek(int year, int month) {
        int j = 1;
        int flag = 0;
        
        //得到当前月的所有日程日期(这些日期需要标记)
//        dao = new ScheduleDAO(context);
        ArrayList<ScheduleDateTag> dateTagList = this.getTagDate(year,month);
        if(dateTagList != null && dateTagList.size() > 0){
            schDateTagFlag = new int[dateTagList.size()];
        }
        
        for (int i = 0; i < dayNumber.length; i++) {
            // 周一
            if(i < dayOfWeek){  //前一个月
                int temp = lastDaysOfMonth - dayOfWeek+1;
                dayNumber[i] = (temp + i)+".";
            }else if(i < daysOfMonth + dayOfWeek){   //本月
                String day = String.valueOf(i-dayOfWeek+1);   //得到的日期
                dayNumber[i] = i-dayOfWeek+1+".";
                //对于当前月才去标记当前日期
                if(sys_year.equals(String.valueOf(year)) && sys_month.equals(String.valueOf(month)) && sys_day.equals(day)){
                    //笔记当前日期
                    currentFlag = i;
                }
                //标记日程日期
                if(dateTagList != null && dateTagList.size() > 0){
                    for(int m = 0; m < dateTagList.size(); m++){
                        ScheduleDateTag dateTag = dateTagList.get(m);
                        int matchYear = dateTag.getYear();
                        int matchMonth = dateTag.getMonth();
                        int matchDay = dateTag.getDay();
                        if(matchYear == year && matchMonth == month && matchDay == Integer.parseInt(day)){
                            schDateTagFlag[flag] = i;
                            flag++;
                        }
                    }
                    
                }
                setShowYear(String.valueOf(year));
                setShowMonth(String.valueOf(month));
            }else{   //下一个月
                dayNumber[i] = j+"";
                j++;
            }
        }
        
        String abc = "";
        for(int i = 0; i < dayNumber.length; i++){
             abc = abc+dayNumber[i]+":";
        }
        Log.d("DAYNUMBER",abc);


    }
//    /**
//     * 得到所有的日程信息
//     */
//    public void getScheduleAll(){
////        schList = dao.getAllSchedule();
//        if(schList != null){
//            for (ScheduleVO vo : schList) {
//                String content = vo.getScheduleContent();
//                int startLine = content.indexOf("\n");
//                if(startLine > 0){
//                    content = content.substring(0, startLine)+"...";
//                }else if(content.length() > 30){
//                    content = content.substring(0, 30)+"...";
//                }
//                scheduleID = vo.getScheduleID();
//                createInfotext(scheduleInfo, scheduleID);
//            }
//        }else{
//            scheduleInfo = "没有日程";
//            createInfotext(scheduleInfo,-1);
//        }
//    }
    
    
    public void matchScheduleDate(int year, int month, int day){
        
    }
    
    /**
     * 点击每一个item时返回item中的日期
     * @param position
     * @return
     */
    public String getDateByClickItem(int position){
        return dayNumber[position];
    }
    
    /**
     * 在点击gridView时，得到这个月中第一天的位置
     * @return
     */
    public int getStartPositon(){
        return dayOfWeek;
    }
    
    /**
     * 在点击gridView时，得到这个月中最后一天的位置
     * @return
     */
    public int getEndPosition(){
        return  (dayOfWeek+daysOfMonth)-1;
    }
    
    public String getShowYear() {
        return showYear;
    }

    public void setShowYear(String showYear) {
        this.showYear = showYear;
    }

    public String getShowMonth() {
        return showMonth;
    }

    public void setShowMonth(String showMonth) {
        this.showMonth = showMonth;
    }
    
    public String getAnimalsYear() {
        return animalsYear;
    }

    public void setAnimalsYear(String animalsYear) {
        this.animalsYear = animalsYear;
    }
    
    public String getLeapMonth() {
        return leapMonth;
    }

    public void setLeapMonth(String leapMonth) {
        this.leapMonth = leapMonth;
    }
    
    public String getCyclical() {
        return cyclical;
    }

    public void setCyclical(String cyclical) {
        this.cyclical = cyclical;
    }
}

四、SpecialCalendar

package com.ct.mycalendar.tool;

import java.util.Calendar;

public class SpecialCalendar {
    /**
     * 日历工具类
     * @author willm zhang
     *
     */

    private int daysOfMonth = 0;      //某月的天数
    private int dayOfWeek = 0;        //具体某一天是星期几

    
    
    
    // 判断是否为闰年
    public boolean isLeapYear(int year) {
        if (year % 100 == 0 && year % 400 == 0) {
            return true;
        } else if (year % 100 != 0 && year % 4 == 0) {
            return true;
        }
        return false;
    }

    //得到某月有多少天数
    public int getDaysOfMonth(boolean isLeapyear, int month) {
        switch (month) {
        case 1:
        case 3:
        case 5:
        case 7:
        case 8:
        case 10:
        case 12:
            daysOfMonth = 31;
            break;
        case 4:
        case 6:
        case 9:
        case 11:
            daysOfMonth = 30;
            break;
        case 2:
            if (isLeapyear) {
                daysOfMonth = 29;
            } else {
                daysOfMonth = 28;
            }

        }
        return daysOfMonth;
    }
    
    //指定某年中的某月的第一天是星期几
    public int getWeekdayOfMonth(int year, int month){
        Calendar cal = Calendar.getInstance();
        cal.set(year, month-1, 1);
        dayOfWeek = cal.get(Calendar.DAY_OF_WEEK)-1;
        return dayOfWeek;
    }
    
    
}

五、ScheduleDateTag

package com.ct.mycalendar.tool;

/**
 * 需要标记的日程日期
 * @author willm zhang
 *
 */
public class ScheduleDateTag {

    private int tagID;
    private int scheduleTypeID;
    private int remindID;
    private int month;
    private int year;
    private int day;
    private int scheduleID;
    
    
    public ScheduleDateTag() {
        
    }


    public ScheduleDateTag(int tagID, int year, int month, int day, int scheduleID) {

        this.tagID = tagID;
        this.month = month;
        this.year = year;
        this.day = day;
        this.scheduleID = scheduleID;
    }


    public int getTagID() {
        return tagID;
    }


    public void setTagID(int tagID) {
        this.tagID = tagID;
    }


    public int getScheduleTypeID() {
        return scheduleTypeID;
    }


    public void setScheduleTypeID(int scheduleTypeID) {
        this.scheduleTypeID = scheduleTypeID;
    }


    public int getRemindID() {
        return remindID;
    }


    public void setRemindID(int remindID) {
        this.remindID = remindID;
    }


    public int getMonth() {
        return month;
    }


    public void setMonth(int month) {
        this.month = month;
    }


    public int getYear() {
        return year;
    }


    public void setYear(int year) {
        this.year = year;
    }


    public int getDay() {
        return day;
    }


    public void setDay(int day) {
        this.day = day;
    }


    public int getScheduleID() {
        return scheduleID;
    }


    public void setScheduleID(int scheduleID) {
        this.scheduleID = scheduleID;
    }
    
}

六、资源文件等等

（在F:\java\Calendar01）