package com.dollearn.student.views;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.util.AttributeSet;
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import android.util.DisplayMetrics;
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import android.view.MotionEvent;
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import android.view.View;
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import com.dollearn.student.utils.DateUtils;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.List;
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/**
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* Created by zhouyou on 2016/7/25.
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* Class desc:
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* <p>
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* 自定义日历View，可多选
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*/
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public class CalendarView extends View {
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// 列的数量
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private static final int NUM_COLUMNS = 7;
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// 行的数量
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private static final int NUM_ROWS = 6;
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/**
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* 可选日期数据
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*/
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private List<String> mOptionalDates = new ArrayList<>();
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private int nowDay = 0;
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/**
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* 以选日期数据
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*/
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private List<String> mSelectedDates = new ArrayList<>();
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/**
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* 异常日期数据
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*/
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private List<String> mErrorDates = new ArrayList<>();
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// 分割线颜色
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private int mDividerColor = Color.parseColor("#DEDEDE");
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// 默认背景颜色和不可选背景色
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private int mBgColor = Color.parseColor("#ffffff");
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// 选中背景颜色
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private int mSelectedColor = Color.parseColor("#EE6639");
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// 可选背景颜色
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private int mAbleColor = Color.parseColor("#FFFFFF");
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// 天数默认颜色
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private int mDayNormalColor = Color.parseColor("#27282D");
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//异常日期
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private int mErrorColor = Color.parseColor("#FF5C5C");
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// 天数不可选颜色
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private int mDayNotOptColor = Color.parseColor("#BEBEC0");
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// 天数选择后颜色
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private int mDayPressedColor = Color.WHITE;
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// 天数字体大小
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private int mDayTextSize = 14;
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// 是否可以被点击状态
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private boolean mClickable = true;
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//是否单选
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private boolean mSingle = true;
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private DisplayMetrics mMetrics;
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private Paint mPaint;
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private int mCurYear;
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private int mCurMonth;
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private int mCurDate;
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private int mSelYear;
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private int mSelMonth;
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private int mSelDate;
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private int mColumnSize;
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private int mRowSize;
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private int[][] mDays = new int[6][7];
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// 当月一共有多少天
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private int mMonthDays;
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// 当月第一天位于周几
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private int mWeekNumber;
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public CalendarView(Context context) {
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super(context);
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init();
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}
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public CalendarView(Context context, AttributeSet attrs) {
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super(context, attrs);
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init();
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}
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public CalendarView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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init();
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}
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private void init() {
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// 获取手机屏幕参数
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mMetrics = getResources().getDisplayMetrics();
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// 创建画笔
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mPaint = new Paint();
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mPaint.setAntiAlias(true);
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// 获取当前日期
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Calendar calendar = Calendar.getInstance();
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mCurYear = calendar.get(Calendar.YEAR);
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mCurMonth = calendar.get(Calendar.MONTH);
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mCurDate = calendar.get(Calendar.DATE);
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setSelYTD(mCurYear, mCurMonth, mCurDate);
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nowDay = Integer.parseInt(getSelData(mCurYear, mCurMonth, mCurDate));
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mSelectedDates.add(getSelData(mCurYear, mCurMonth, mCurDate));
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}
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@Override
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protected void onDraw(Canvas canvas) {
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initSize();
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// 设置绘制字体大小
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mPaint.setTextSize(mDayTextSize * mMetrics.scaledDensity);
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String dayStr;
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// 获取当月一共有多少天
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mMonthDays = DateUtils.getMonthDays(mSelYear, mSelMonth);
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// 获取当月第一天位于周几
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mWeekNumber = DateUtils.getFirstDayWeek(mSelYear, mSelMonth);
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for (int day = 0; day < mMonthDays; day++) {
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dayStr = String.valueOf(day + 1);
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int column = (day + mWeekNumber - 1) % 7;
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int row = (day + mWeekNumber - 1) / 7;
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mDays[row][column] = day + 1;
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int startX = (int) (mColumnSize * column + (mColumnSize - mPaint.measureText(dayStr)) / 2);
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int startY = (int) (mRowSize * row + mRowSize / 2 - (mPaint.ascent() + mPaint.descent()) / 2);
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if (!mSelectedDates.contains(getSelData(mSelYear, mSelMonth, mDays[row][column]))) {
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// 没有点击过，绘制默认背景
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// canvas.drawBitmap(mBgNotOptBitmap, startX - (mBgNotOptBitmap.getWidth() / 3), startY - (mBgNotOptBitmap.getHeight() / 2), mPaint);
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mPaint.setColor(mAbleColor);
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canvas.drawRect(column * mColumnSize, row * mRowSize, column * mColumnSize + mColumnSize, row * mRowSize + mRowSize, mPaint);
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mPaint.setColor(mDayNormalColor);
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} else {
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// 点击过，绘制点击过的背景
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// canvas.drawBitmap(mBgOptBitmap, startX - (mBgOptBitmap.getWidth() / 3), startY - (mBgOptBitmap.getHeight() / 2), mPaint);
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mPaint.setColor(mSelectedColor);
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// canvas.drawRect(column*mColumnSize,row*mRowSize,column*mColumnSize+mColumnSize,row*mRowSize+mRowSize,mPaint);
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canvas.drawCircle(column * mColumnSize + 0.5f * mColumnSize, row * mRowSize + 0.5f * mRowSize, 0.4f * mColumnSize, mPaint);
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mPaint.setColor(mDayPressedColor);
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}
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//是异常天数
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if (mErrorDates.contains(getSelData(mSelYear, mSelMonth, mDays[row][column]))) {
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mPaint.setColor(mErrorColor);
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}
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// 绘制天数
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canvas.drawText(dayStr, startX, startY, mPaint);
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}
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}
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private int downX = 0, downY = 0;
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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int eventCode = event.getAction();
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switch (eventCode) {
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case MotionEvent.ACTION_DOWN:
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downX = (int) event.getX();
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downY = (int) event.getY();
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break;
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case MotionEvent.ACTION_MOVE:
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break;
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case MotionEvent.ACTION_UP:
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if (!mClickable) return true;
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int upX = (int) event.getX();
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int upY = (int) event.getY();
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if (Math.abs(upX - downX) < 10 && Math.abs(upY - downY) < 10) {
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performClick();
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onClick((upX + downX) / 2, (upY + downY) / 2);
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}
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break;
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}
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return true;
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}
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public void setErrorDays(List<String> errorDates) {
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this.mErrorDates = errorDates;
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invalidate();
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}
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/**
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* 点击事件
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*/
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private void onClick(int x, int y) {
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int row = y / mRowSize;
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int column = x / mColumnSize;
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setSelYTD(mSelYear, mSelMonth, mDays[row][column]);
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// 判断是否点击过
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boolean isSelected = mSelectedDates.contains(getSelData(mSelYear, mSelMonth, mSelDate));
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// 判断是否可以添加
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boolean isCanAdd = true;
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if (isSelected) {
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// mSelectedDates.remove(getSelData(mSelYear, mSelMonth, mSelDate));
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} else if (isCanAdd) {
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if (mSingle)
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mSelectedDates.clear();
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mSelectedDates.add(getSelData(mSelYear, mSelMonth, mSelDate));
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}
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invalidate();
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if (mListener != null && isCanAdd) {
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// 执行回调
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String dateStr = mSelYear + "-";
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if (mSelMonth + 1 < 10)
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dateStr = dateStr + "0" + (mSelMonth + 1) + "-";
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else
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dateStr = dateStr + (mSelMonth + 1) + "-";
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if (mSelDate < 10)
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dateStr = dateStr + "0" + mSelDate;
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else
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dateStr = dateStr + mSelDate;
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mListener.onClickDateListener(dateStr);
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}
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}
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public String getCurrent() {
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String dateStr = mCurYear + "-";
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if (mCurMonth + 1 < 10)
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dateStr = dateStr + "0" + (mCurMonth + 1) + "-";
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else
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dateStr = dateStr + (mCurMonth + 1) + "-";
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if (mCurDate < 10)
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dateStr = dateStr + "0" + mCurDate;
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else
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dateStr = dateStr + mCurDate;
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return dateStr;
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}
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public String getYM() {
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String dateStr = mSelYear + "-";
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if (mSelMonth + 1 < 10)
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dateStr = dateStr + "0" + (mSelMonth + 1);
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else
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dateStr = dateStr + (mSelMonth + 1);
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return dateStr;
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}
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/**
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* 初始化列宽和高
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*/
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private void initSize() {
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// 初始化每列的大小
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mColumnSize = getWidth() / NUM_COLUMNS;
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// 初始化每行的大小
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mRowSize = getHeight() / NUM_ROWS;
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}
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/**
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* 设置可选择日期
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*
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* @param dates 日期数据
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*/
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public void setOptionalDate(List<String> dates) {
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this.mOptionalDates = dates;
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invalidate();
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}
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/**
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* 设置已选日期数据
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*/
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public void setSelectedDates(List<String> dates) {
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this.mSelectedDates = dates;
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}
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/**
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* 获取已选日期数据
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*/
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public List<String> getSelectedDates() {
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return mSelectedDates;
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}
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/**
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* 设置日历是否可以点击
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*/
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@Override
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public void setClickable(boolean clickable) {
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this.mClickable = clickable;
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}
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/**
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* 设置年月日
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*
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* @param year 年
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* @param month 月
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* @param date 日
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*/
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private void setSelYTD(int year, int month, int date) {
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this.mSelYear = year;
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this.mSelMonth = month;
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this.mSelDate = date;
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}
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/**
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* 设置上一个月日历
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*/
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public void setLastMonth() {
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int year = mSelYear;
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int month = mSelMonth;
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int day = mSelDate;
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// 如果是1月份，则变成12月份
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if (month == 0) {
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year = mSelYear - 1;
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month = 11;
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} else if (DateUtils.getMonthDays(year, month) == day) {
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// 如果当前日期为该月最后一点，当向前推的时候，就需要改变选中的日期
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month = month - 1;
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day = DateUtils.getMonthDays(year, month);
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} else {
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month = month - 1;
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}
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setSelYTD(year, month, day);
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invalidate();
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}
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/**
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* 设置下一个日历
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*/
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public void setNextMonth() {
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int year = mSelYear;
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int month = mSelMonth;
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int day = mSelDate;
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// 如果是12月份，则变成1月份
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if (month == 11) {
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year = mSelYear + 1;
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month = 0;
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} else if (DateUtils.getMonthDays(year, month) == day) {
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// 如果当前日期为该月最后一点，当向前推的时候，就需要改变选中的日期
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month = month + 1;
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day = DateUtils.getMonthDays(year, month);
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} else {
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month = month + 1;
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}
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setSelYTD(year, month, day);
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invalidate();
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}
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/**
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* 获取当前展示的年和月份
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*
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* @return 格式：2016年06月
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*/
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public String getDate() {
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return mSelYear + "年" + (mSelMonth + 1) + "月";
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}
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/**
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* 获取当前展示的日期
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*
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* @return 格式：20160606
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*/
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private String getSelData(int year, int month, int date) {
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String monty, day;
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month = (month + 1);
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// 判断月份是否有非0情况
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if ((month) < 10) {
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monty = "0" + month;
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} else {
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monty = String.valueOf(month);
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}
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// 判断天数是否有非0情况
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if ((date) < 10) {
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day = "0" + (date);
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} else {
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day = String.valueOf(date);
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}
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return year + monty + day;
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}
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private OnClickListener mListener;
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public interface OnClickListener {
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void onClickDateListener(String date);
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}
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/**
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* 设置点击回调
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*/
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public void setOnClickDate(OnClickListener listener) {
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this.mListener = listener;
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}
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}
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