android 日历开发附源码（附源码）移动开发孔乙己大叔的博客-

这里主要记录一下在编写日历apk过程中一些主要的点：先看下效果图

一、主要功能

• 1、支持农历、节气、常用节假日
• 2、使用数据库，设置计划

二、基本结构

我们要实现的日历控件采用GestureDetector构造器，使用OnGestureListener监听滑动。目前我们设定日历左右滑动为月份切换的操作，每一个月份显示通过GridView实现，里面的数据是通过构造CalendarView，将其绑定到GridView。每次左右滑动，都会刷新CalendarView。布局上，会在GridView上显示当前日期农历时间。

三、主要代码及解析

 CalendarActivity.java

   /**  * 日历显示activity  *  * @author 孔乙己大叔  */ public class CalendarActivity extends Activity implements OnGestureListener {       @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);         gestureDetector = new GestureDetector(this, this);         flipper = (ViewFlipper) findViewById(R.id.flipper);         flipper.removeAllViews();         calV = new CalendarView(this, getResources(), jumpMonth, jumpYear, year_c, month_c, day_c);         addGridView();         gridView.setAdapter(calV);         flipper.addView(gridView, 0);         topText = (BorderText) findViewById(R.id.toptext);         addTextToTopTextView(topText);     }      @Override     public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {         int gvFlag = 0;         //每次添加gridview到viewflipper中时给的标记         if (e1.getX() - e2.getX() > 120) {             //像左滑动             addGridView();   //添加一个gridView             jumpMonth++;     //下一个月             calV = new CalendarView(this, getResources(), jumpMonth, jumpYear, year_c, month_c, day_c);             gridView.setAdapter(calV);             addTextToTopTextView(topText);             gvFlag++;             flipper.addView(gridView, gvFlag);             this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_in));             this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_out));             this.flipper.showNext();             flipper.removeViewAt(0);             return true;         } else if (e1.getX() - e2.getX() < -120) {             //向右滑动             addGridView();   //添加一个gridView             jumpMonth--;     //上一个月              calV = new CalendarView(this, getResources(), jumpMonth, jumpYear, year_c, month_c, day_c);             gridView.setAdapter(calV);             gvFlag++;             addTextToTopTextView(topText);             //flipper.addView(gridView);             flipper.addView(gridView, gvFlag);             this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_in));             this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_out));             this.flipper.showPrevious();             flipper.removeViewAt(0);             return true;         }         return false;     }      /**      * 创建菜单      */     @Override     public boolean onCreateOptionsMenu(Menu menu) {         menu.add(0, menu.FIRST, menu.FIRST, "今天");         menu.add(0, menu.FIRST + 1, menu.FIRST + 1, "跳转");         menu.add(0, menu.FIRST + 2, menu.FIRST + 2, "日程");         menu.add(0, menu.FIRST + 3, menu.FIRST + 3, "日期转换");         return super.onCreateOptionsMenu(menu);     }      /**      * 选择菜单      */     @Override     public boolean onMenuItemSelected(int featureId, MenuItem item) {         switch (item.getItemId()) {             case Menu.FIRST:                 //跳转到今天                 int xMonth = jumpMonth;                 int xYear = jumpYear;                 int gvFlag = 0;                 jumpMonth = 0;                 jumpYear = 0;                 addGridView();   //添加一个gridView                 year_c = Integer.parseInt(currentDate.split("-")[0]);                 month_c = Integer.parseInt(currentDate.split("-")[1]);                 day_c = Integer.parseInt(currentDate.split("-")[2]);                 calV = new CalendarView(this, getResources(), jumpMonth, jumpYear, year_c, month_c, day_c);                 gridView.setAdapter(calV);                 addTextToTopTextView(topText);                 gvFlag++;                 flipper.addView(gridView, gvFlag);                 if (xMonth == 0 && xYear == 0) {                     //nothing to do                 } else if ((xYear == 0 && xMonth > 0) || xYear > 0) {                     this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_in));                     this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_left_out));                     this.flipper.showNext();                 } else {                     this.flipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_in));                     this.flipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.push_right_out));                     this.flipper.showPrevious();                 }                 flipper.removeViewAt(0);                 break;             case Menu.FIRST + 1:                  new DatePickerDialog(this, new OnDateSetListener() {                      @Override                     public void onDateSet(DatePicker view, int year, int monthOfYear,                                           int dayOfMonth) {                         //1901-1-1 ----> 2049-12-31                         if (year < 1901 || year > 2049) {                             //不在查询范围内                             new AlertDialog.Builder(CalendarActivity.this).setTitle("错误日期").setMessage("跳转日期范围(1901/1/1-2049/12/31)").setPositiveButton("确认", null).show();                         } else {                             int gvFlag = 0;                             addGridView();   //添加一个gridView                             calV = new CalendarView(CalendarActivity.this, CalendarActivity.this.getResources(), year, monthOfYear + 1, dayOfMonth);                             gridView.setAdapter(calV);                             addTextToTopTextView(topText);                             gvFlag++;                             flipper.addView(gridView, gvFlag);                             if (year == year_c && monthOfYear + 1 == month_c) {                                 //nothing to do                             }                             if ((year == year_c && monthOfYear + 1 > month_c) || year > year_c) {                                 CalendarActivity.this.flipper.setInAnimation(AnimationUtils.loadAnimation(CalendarActivity.this, R.anim.push_left_in));                                 CalendarActivity.this.flipper.setOutAnimation(AnimationUtils.loadAnimation(CalendarActivity.this, R.anim.push_left_out));                                 CalendarActivity.this.flipper.showNext();                             } else {                                 CalendarActivity.this.flipper.setInAnimation(AnimationUtils.loadAnimation(CalendarActivity.this, R.anim.push_right_in));                                 CalendarActivity.this.flipper.setOutAnimation(AnimationUtils.loadAnimation(CalendarActivity.this, R.anim.push_right_out));                                 CalendarActivity.this.flipper.showPrevious();                             }                             flipper.removeViewAt(0);                             //跳转之后将跳转之后的日期设置为当期日期                             year_c = year;                             month_c = monthOfYear + 1;                             day_c = dayOfMonth;                             jumpMonth = 0;                             jumpYear = 0;                         }                     }                 }, year_c, month_c - 1, day_c).show();                 break;             case Menu.FIRST + 2:                 Intent intent = new Intent();                 intent.setClass(CalendarActivity.this, ScheduleAll.class);                 startActivity(intent);                 break;             case Menu.FIRST + 3:                 Intent intent1 = new Intent();                 intent1.setClass(CalendarActivity.this, CalendarConvert.class);                 intent1.putExtra("date", new int[]{year_c, month_c, day_c});                 startActivity(intent1);                 break;         }         return super.onMenuItemSelected(featureId, item);     }            //添加头部的年份 闰哪月等信息     public void addTextToTopTextView(TextView view) {         StringBuffer textDate = new StringBuffer();         view.setBackgroundResource(R.drawable.top_day);         view.setBackground(getResources().getDrawable(R.drawable.top_day));         textDate.append(calV.getShowYear()).append("年").append(calV.getShowMonth()).append("月").append("t");         if (!calV.getLeapMonth().equals("") && calV.getLeapMonth() != null) {             textDate.append("闰").append(calV.getLeapMonth()).append("月").append("t");         }         textDate.append(calV.getAnimalsYear()).append("年").append("(").append(calV.getCyclical()).append("年)");         view.setText(textDate);         view.setTextColor(Color.BLACK);         view.setTypeface(Typeface.DEFAULT_BOLD);     }      //添加gridview     private void addGridView() {         LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(                 LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);          DisplayMetrics displayMetrics = new DisplayMetrics();         getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);         int Width = displayMetrics.widthPixels;         int Height = displayMetrics.heightPixels;         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.TRANSPARENT)); // 去除gridView边框         gridView.setVerticalSpacing(1);         gridView.setHorizontalSpacing(1);         gridView.setBackgroundResource(R.drawable.gridview_bk);         gridView.setOnTouchListener(new OnTouchListener() {             //将gridview中的触摸事件回传给gestureDetector             @Override             public boolean onTouch(View v, MotionEvent event) {                 // TODO Auto-generated method stub                 return CalendarActivity.this.gestureDetector                         .onTouchEvent(event);             }         });          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) {                 //点击任何一个item，得到这个item的日期(排除点击的是周日到周六(点击不响应))                 int startPosition = calV.getStartPositon();                 int endPosition = calV.getEndPosition();                 if (startPosition <= position && position <= endPosition) {                     String scheduleDay = calV.getDateByClickItem(position).split("\.")[0];  //这一天的阳历                     String scheduleYear = calV.getShowYear();                     String scheduleMonth = calV.getShowMonth();                     String week = "";                      //通过日期查询这一天是否被标记，如果标记了日程就查询出这天的所有日程信息                     String[] scheduleIDs = dao.getScheduleByTagDate(Integer.parseInt(scheduleYear), Integer.parseInt(scheduleMonth), Integer.parseInt(scheduleDay));                     if (scheduleIDs != null && scheduleIDs.length > 0) {                         //跳转到显示这一天的所有日程信息界面                         Intent intent = new Intent();                         intent.setClass(CalendarActivity.this, ScheduleInfoView.class);                         intent.putExtra("scheduleID", scheduleIDs);                         startActivity(intent);                     } else {                         //直接跳转到需要添加日程的界面                          //得到这一天是星期几                         switch (position % 7) {                             case 0:                                 week = "星期日";                                 break;                             case 1:                                 week = "星期一";                                 break;                             case 2:                                 week = "星期二";                                 break;                             case 3:                                 week = "星期三";                                 break;                             case 4:                                 week = "星期四";                                 break;                             case 5:                                 week = "星期五";                                 break;                             case 6:                                 week = "星期六";                                 break;                         }                          ArrayList<String> scheduleDate = new ArrayList<String>();                         scheduleDate.add(scheduleYear);                         scheduleDate.add(scheduleMonth);                         scheduleDate.add(scheduleDay);                         scheduleDate.add(week);                         //scheduleDate.add(scheduleLunarDay);                          Intent intent = new Intent();                         intent.putStringArrayListExtra("scheduleDate", scheduleDate);                         intent.setClass(CalendarActivity.this, ScheduleView.class);                         startActivity(intent);                     }                 }             }         });         gridView.setLayoutParams(params);     } }

自定义view实现：

   /**  * 日历gridview中的每一个item显示的textview  *  * @author 孔乙己大叔  */ public class CalendarView extends BaseAdapter {       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();         lc = new LunarCalendar();         this.res = rs;          int stepYear = year_c + jumpYear;         int stepMonth = month_c + jumpMonth;         if (stepMonth > 0) {             //往下一个月滑动             if (stepMonth % 12 == 0) {                 stepYear = year_c + stepMonth / 12 - 1;                 stepMonth = 12;             } else {                 stepYear = year_c + stepMonth / 12;                 stepMonth = stepMonth % 12;             }         } else {             //往上一个月滑动             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为滑动的次数，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();         lc = new LunarCalendar();         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() {         // TODO Auto-generated method stub         return dayNumber.length;     }      @Override     public Object getItem(int position) {         // TODO Auto-generated method stub         return position;     }      @Override     public long getItemId(int position) {         // TODO Auto-generated method stub         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];         String dv = dayNumber[position].split("\.")[1];         //Typeface typeface = Typeface.createFromAsset(context.getAssets(), "fonts/Helvetica.ttf");         //textView.setTypeface(typeface);         SpannableString sp = new SpannableString(d + "n" + dv);         sp.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), 0, d.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);         sp.setSpan(new RelativeSizeSpan(1.2f), 0, d.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);         if (dv != null || dv != "") {             sp.setSpan(new RelativeSizeSpan(0.75f), d.length() + 1, dayNumber[position].length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);         }         //sp.setSpan(new ForegroundColorSpan(Color.MAGENTA), 14, 16, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)         textView.setText(sp);         textView.setTextColor(Color.GRAY);         if (position < 7) {             //设置周             textView.setTextColor(Color.BLACK);             textView.setBackgroundResource(R.drawable.week_top);         }          if (position < daysOfMonth + dayOfWeek + 7 && position >= dayOfWeek + 7) {             // 当前月信息显示             textView.setTextColor(Color.BLACK);// 当月字体设黑             drawable = res.getDrawable(R.drawable.item);             //textView.setBackgroundDrawable(drawable);             //textView.setBackgroundColor(Color.WHITE);          }         if (schDateTagFlag != null && schDateTagFlag.length > 0) {             for (int i = 0; i < schDateTagFlag.length; i++) {                 if (schDateTagFlag[i] == position) {                     //设置日程标记背景                     textView.setBackgroundResource(R.drawable.mark);                 }             }         }         if (currentFlag == position) {             //设置当天的背景             textView.setBackgroundResource(R.drawable.current_day_bgc);             textView.setTextColor(Color.WHITE);         }         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);     }      //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;         String lunarDay = "";         //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 = dao.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 < 7) {                 dayNumber[i] = week[i] + "." + " ";             } else if (i < dayOfWeek + 7) {  //前一个月                 int temp = lastDaysOfMonth - dayOfWeek + 1 - 7;                 lunarDay = lc.getLunarDate(year, month - 1, temp + i, false);                 dayNumber[i] = (temp + i) + "." + lunarDay;             } else if (i < daysOfMonth + dayOfWeek + 7) {   //本月                 String day = String.valueOf(i - dayOfWeek + 1 - 7);   //得到的日期                 lunarDay = lc.getLunarDate(year, month, i - dayOfWeek + 1 - 7, false);                 dayNumber[i] = i - dayOfWeek + 1 - 7 + "." + lunarDay;                 //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));                 setAnimalsYear(lc.animalsYear(year));                 setLeapMonth(lc.leapMonth == 0 ? "" : String.valueOf(lc.leapMonth));                 setCyclical(lc.cyclical(year));             } else {   //下一个月                 lunarDay = lc.getLunarDate(year, month + 1, j, false);                 dayNumber[i] = j + "." + lunarDay;                 j++;             }         }         String abc = "";         for (int i = 0; i < dayNumber.length; i++) {             abc = abc + dayNumber[i] + ":";         }         Log.d("DAYNUMBER", abc);     }    } 

判断是否为闰年，当月多少天数，当天是星期几代码实现：

 // 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;     }

四、小结

这里我们只介绍了日历的基本实现原理，和一些关键的点，其实这种实现方式相对还是比较简单的，容易理解，当然难免有不足的地方，后边根据需要再逐步完善和扩展吧。数据库操作暂时没进行解析，后面会单独用demo说明。

源码下载地址：https://download.csdn.net/download/Ctrl_qun/12436629