android日历 calendar的使用

package com.lashou.calendar; import java.io.Serializable; import java.text.SimpleDateFormat; import java.util.Date; import android.app.Activity; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Rect; import android.util.Log; import android.view.View; import android.widget.TextView; public class Grid extends CalendarParent implements Serializable { //修改该 boolean isBefore = false; Date estimateDate = new Date(); SimpleDateFormat sdf; java.util.Calendar calendarDate; private Date selectDate = null; //修改完 //修改完 private String[] days = new String[42];//这个里面包含了每个月的42个数字 // true表示有记录，false表示没记录 private boolean[] recordDays = new boolean[42]; private String[] monthNames = new String[12]; private TextView tvMsg1; // private TextView tvMsg2; // private TextView tvMsg3; private int dayColor; private int innerGridColor; private int prevNextMonthDayColor; private int currentDayColor; private int todayColor; private int todayBackgroundColor; private int sundaySaturdayPrevNextMonthDayColor; private float daySize; private float dayTopOffset; private float currentDaySize; private float cellX = -1, cellY = -1; // 从0开始 private int currentRow, currentCol; private boolean redrawForKeyDown = false; //当前的年和月 public int currentYear, currentMonth; // 上月或者下个月选中的天数 public int currentDay = -1, currentDay1 = -1, currentDayIndex = -1; private java.util.Calendar calendar = java.util.Calendar.getInstance(); public Date getSelectDate(){ if(!isBefore){ return null; } return selectDate; } public void setCurrentRow(int currentRow) { if (currentRow < 0) { currentMonth--; if (currentMonth == -1) { currentMonth = 11; currentYear--; } currentDay = getMonthDays(currentYear, currentMonth) + currentDay - 7; currentDay1 = currentDay; cellX = -1; cellX = -1; view.invalidate(); return; } else if (currentRow > 5) { int n = 0; for (int i = 35; i < days.length; i++) { if (!days[i].startsWith("*")) n++; else break; } currentDay = 7 - n + currentCol + 1; currentDay1 = currentDay; currentMonth++; if (currentMonth == 12) { currentMonth = 0; currentYear++; } cellX = -1; cellX = -1; view.invalidate(); return; } this.currentRow = currentRow; redrawForKeyDown = true; view.invalidate(); } private void getRecordDays() { int beginIndex = 8; int endIndex = 7; int beginDayIndex = 0; if (currentMonth > 9) { beginIndex = 9; endIndex = 8; } for (int i = 0; i < recordDays.length; i++) recordDays[i] = false; for (int i = 0; i < days.length; i++) { if (!days[i].startsWith("*")) { beginDayIndex = i; break; } } if (days[0].startsWith("*")) { int prevYear = currentYear, prevMonth = currentMonth - 1; if (prevMonth == -1) { prevMonth = 11; prevYear--; } int minDay = Integer.parseInt(days[0].substring(1)); } if (days[days.length - 1].startsWith("*")) { int nextYear = currentYear, nextMonth = currentMonth + 1; if (nextMonth == 12) { nextMonth = 0; nextYear++; } int maxDay = Integer.parseInt(days[days.length - 1].substring(1)); } } public void setCurrentCol(int currentCol) { if (currentCol < 0) { if (currentRow == 0) { currentMonth--; if (currentMonth == -1) { currentMonth = 11; currentYear--; } currentDay = getMonthDays(currentYear, currentMonth); currentDay1 = currentDay; cellX = -1; cellX = -1; view.invalidate(); return; } else { currentCol = 6; setCurrentRow(--currentRow); } } else if (currentCol > 6) { currentCol = 0; setCurrentRow(++currentRow); } this.currentCol = currentCol; redrawForKeyDown = true; view.invalidate(); } public int getCurrentRow() { return currentRow; } public int getCurrentCol() { return currentCol; } public void setCellX(float cellX) { this.cellX = cellX; } public void setCellY(float cellY) { this.cellY = cellY; } private int getMonthDays(int year, int month) { month++; switch (month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: { return 31; } case 4: case 6: case 9: case 11: { return 30; } case 2: { if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) return 29; else return 28; } } return 0; } private void calculateDays() { calendar.set(currentYear, currentMonth, 1); int week = calendar.get(calendar.DAY_OF_WEEK); int monthDays = 0; int prevMonthDays = 0; monthDays = getMonthDays(currentYear, currentMonth); if (currentMonth == 0) prevMonthDays = getMonthDays(currentYear - 1, 11); else prevMonthDays = getMonthDays(currentYear, currentMonth - 1); for (int i = week, day = prevMonthDays; i > 1; i--, day--) { days[i - 2] = "*" + String.valueOf(day); } for (int day = 1, i = week - 1; day <= monthDays; day++, i++) { days[i] = String.valueOf(day); if (day == currentDay) { currentDayIndex = i; } } for (int i = week + monthDays - 1, day = 1; i < days.length; i++, day++) { days[i] = "*" + String.valueOf(day); } } public Grid(Activity activity, View view) { super(activity, view); tvMsg1 = (TextView) activity.findViewById(R.id.data); // tvMsg2 = (TextView) activity.findViewById(R.id.month); dayColor = activity.getResources().getColor(R.color.day_color);//白色 todayColor = activity.getResources().getColor(R.color.today_color); todayBackgroundColor = activity.getResources().getColor( R.color.today_background_color); innerGridColor = activity.getResources().getColor( R.color.inner_grid_color); prevNextMonthDayColor = activity.getResources().getColor( R.color.prev_next_month_day_color); currentDayColor = activity.getResources().getColor( R.color.current_day_color);//星期六、日文字颜色 sundaySaturdayPrevNextMonthDayColor = activity.getResources().getColor( R.color.sunday_saturday_prev_next_month_day_color); daySize = activity.getResources().getDimension(R.dimen.day_size); dayTopOffset = activity.getResources().getDimension( R.dimen.day_top_offset); currentDaySize = activity.getResources().getDimension( R.dimen.current_day_size); // monthNames = activity.getResources().getStringArray(R.array.month_name); paint.setColor(activity.getResources().getColor(R.color.border_color)); currentYear = calendar.get(calendar.YEAR); currentMonth = calendar.get(calendar.MONTH); } private boolean isCurrentDay(int dayIndex, int currentDayIndex, Rect cellRect) { boolean result = false; if (redrawForKeyDown == true) { result = dayIndex == (7 * ((currentRow > 0) ? currentRow : 0) + currentCol); if (result) redrawForKeyDown = false; } else if (cellX != -1 && cellY != -1) { if (cellX >= cellRect.left && cellX <= cellRect.right && cellY >= cellRect.top && cellY <= cellRect.bottom) { result = true; } else { result = false; } } else { result = (dayIndex == currentDayIndex); } if (result) { if (currentRow > 0 && currentRow < 6) { currentDay1 = currentDay; } currentDayIndex = -1; cellX = -1; cellY = -1; } return result; } // 更新当前