Android GridView实现自定义日程表课表

A_mnesia

已于 2024-06-11 15:31:32 修改

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文章标签： Android 时间课程表 Java 自定义

于 2019-03-14 20:00:49 首次发布

本文链接：https://blog.youkuaiyun.com/m13984458297/article/details/88559892

版权

本文介绍了一个自定义的GridView适配器——CalendarAdapter，用于实现一个可查看上一个月、下一个月、上一年、下一年日期的日历功能。通过点击每天可以获取具体时间，底部显示当天详细信息。文章提供了核心代码实现，并解释了如何在Activity中使用。

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Demo地址：https://download.youkuaiyun.com/download/m13984458297/11021700

功能：能查看上一个月、下一个月、上一年、下一年的日期；点击每天能获取当天的具体时间，底部显示的是当天的具体信息，当然我只提供一个最基本的功能，其他的课根据自己的需求来优化。

效果图如下：

核心类，也是GridView的适配器CalendarAdapter（类中涉及的颜色值，图片文件等自己提供）：

package cn.longmaster.hospital.doctor.ui.user;

import android.content.Context;
import android.graphics.Color;
import android.util.ArraySet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.text.SimpleDateFormat;
import java.util.Set;

import cn.longmaster.hospital.doctor.R;
import cn.longmaster.hospital.doctor.view.timetable.SpecialCalendar;

/**
 * Created by W·H·K on 2019/3/8.
 */
public class CalendarAdapter extends BaseAdapter {
    private static String TAG = "CalendarAdapter";
    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
    private Context context;
    private String[] dayNumber = new String[42]; //一个gridview中的日期存入此数组中
    private SpecialCalendar sc = null;
    private int currentYear = 0;
    private int currentMonth = 0;
    private int currentFlag = -1;
    /**
     * * 当前选中天的字符串 例:20170830
     *    
     */
    private String currentDayStr;
    private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-M-d");
    private Set<Integer> schDateTagFlag = new ArraySet<>(); //存储当月所有的日程日期(标签)
    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 Set<String> mSet = null;
    /**
     * * 距离当前月的差(上一个月-1,当前月0,下一个月+1)
     *    
     */
    private OnItemClickListener mOnItemClickListener;

    public CalendarAdapter(Context context, long time) {
        this.context = context;
        sc = new SpecialCalendar();
        int year = Integer.valueOf(sc.LongToString(time, "yyyy")).intValue();
        currentYear = year;
        int month = Integer.valueOf(sc.LongToString(time, "MM")).intValue();
        currentMonth = month; //得到跳转到的月份
        this.currentDayStr = sc.LongToString(time, "yyyy-MM-dd");
        getCalendar(currentYear, currentMonth);
    }

    public void setOnItemClickListener(OnItemClickListener listener) {
        mOnItemClickListener = listener;
    }

    @Override
    public int getCount() {
        return dayNumber.length;
    }

    @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) {
        ViewHolder myViewHolder = null;
        if (convertView == null || convertView.getTag() == null) {
            myViewHolder = new ViewHolder();
            convertView = LayoutInflater.from(context).inflate(R.layout.item_select_time, null);
            myViewHolder.mIdTvItemSelectTimeDay = (TextView) convertView.findViewById(R.id.id_tv_item_select_time_day);
            myViewHolder.itemView = convertView.findViewById(R.id.item_view);
            convertView.setTag(myViewHolder);
        } else {
            myViewHolder = (ViewHolder) convertView.getTag();
        }
        displayView(myViewHolder, position);
        return convertView;
    }

    private void displayView(final ViewHolder myViewHolder, final int position) {
        myViewHolder.mIdTvItemSelectTimeDay.setText(dayNumber[position]);
        myViewHolder.mIdTvItemSelectTimeDay.setBackgroundColor(Color.WHITE);//不是当前月为灰
        myViewHolder.mIdTvItemSelectTimeDay.setTextColor(context.getColor(R.color.color_cccccc));//不是当前月为灰
        if (position < daysOfMonth + dayOfWeek && position >= dayOfWeek) {
            // 当前月信息显示
            myViewHolder.mIdTvItemSelectTimeDay.setTextColor(context.getColor(R.color.color_1a1a1a));// 当月字体设黑
            myViewHolder.mIdTvItemSelectTimeDay.setTag(true);// 当月字体设黑
            if (getItemTime(position).equals("2019年03月05") || getItemTime(position).equals("2019年03月18") || getItemTime(position).equals("2019年03月22")) {
                myViewHolder.mIdTvItemSelectTimeDay.setBackground(context.getDrawable(R.drawable.bg_course_can_appointment));
                myViewHolder.mIdTvItemSelectTimeDay.setTextColor(Color.WHITE);
                myViewHolder.mIdTvItemSelectTimeDay.setTag(1);
            } else if (getItemTime(position).equals("2019年03月07") || getItemTime(position).equals("2019年03月10") || getItemTime(position).equals("2019年03月28")) {
                myViewHolder.mIdTvItemSelectTimeDay.setBackground(context.getDrawable(R.drawable.bg_course_not_can_appointment));
                myViewHolder.mIdTvItemSelectTimeDay.setTag(2);
            } else {
                myViewHolder.mIdTvItemSelectTimeDay.setBackgroundColor(Color.WHITE);
                myViewHolder.mIdTvItemSelectTimeDay.setTag(0);
            }
        } else {
            myViewHolder.mIdTvItemSelectTimeDay.setTag(false);// 当月字体设黑
        }

        if (currentFlag != -1 && currentFlag == position) {
            //设置当天的背景
            myViewHolder.mIdTvItemSelectTimeDay.setBackgroundResource(R.color.color_eeeeee);
            //myViewHolder.mIdTvItemSelectTimeDay.setTextColor(Color.WHITE);
        }
        myViewHolder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (position < daysOfMonth + dayOfWeek && position >= dayOfWeek) {
                   /* myViewHolder.mIdTvItemSelectTimeDay.setBackground(context.getDrawable(R.drawable.bg_course_can_appointment));
                    myViewHolder.mIdTvItemSelectTimeDay.setTextColor(Color.WHITE);*/
                    if (mOnItemClickListener != null) {
                        mOnItemClickListener.onItemClick(view, position);
                    }
                }
            }
        });

    }

    /**
     * * 更新日历数据
     *    
     */
    public void upData(int stepYear, int stepMonth) {
        getCalendar(stepYear, stepMonth);
    }

    /**
     *    * 得到某年的某月的天数且这月的第一天是星期几
     *    *
     *    * @param year
     *    * @param month
     *    
     */
    private 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
        getWeek(year, month);
    }

    /**
     *    * 将一个月中的每一天的值添加入数组dayNuber中
     *    *
     *    * @param year
     *    * @param month
     *    
     */
    private void getWeek(int year, int month) {
        schDateTagFlag.clear();
        currentFlag = -1;
        int j = 1;
        //得到当前月的所有日程日期(这些日期需要标记)
        for (int i = 0; i < dayNumber.length; i++) {
            if (i < dayOfWeek) { //前一个月
                int temp = lastDaysOfMonth - dayOfWeek + 1;
                dayNumber[i] = (temp + i) + "";
            } else if (i < daysOfMonth + dayOfWeek) {//本月
                int day = 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
                String yearStr = String.valueOf(year);
                String monthStr = getStr(String.valueOf(month), 2);
                String dayStr = getStr(String.valueOf(day), 2);
                String timeAll = yearStr + "-" + monthStr + "-" + dayStr;
                if (timeAll.equals(currentDayStr)) {//判断选中的位置
                    currentFlag = i;
                }
                if (mSet != null && mSet.size() > 0) {
                    for (String s : mSet) {//迭代器遍历判断是否需要带标签
                        if (timeAll.equals(s)) {
                            schDateTagFlag.add(i);
                        }
                    }
                }
                setShowYear(yearStr);
                setShowMonth(String.valueOf(month));
            } else { //下一个月
                dayNumber[i] = j + "";
                j++;
            }
        }
    }

    /**
     *    * 获取当前时间 样式:20170830
     *    * @param position
     *    * @return
     *    
     */
    public String getItemTime(int position) {
        String month = getStr(getShowMonth(), 2);
        String day = getStr(getDateByClickItem(position), 2);
        return getShowYear() + "年" + month + "月" + day;
    }

    /**
     *    * 保留N位整数,不足前面补0
     *    *
     *    * @param file String
     *    * @param bit 位数
     *    * @return
     *    
     */
    public static String getStr(String file, int bit) {
        while (file.length() < bit)
            file = "0" + file;
        return file;
    }

    /**
     *    * 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 + 7;
    }

    /**
     *    * 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 + 7) - 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 Set<String> getSet() {
        return mSet;
    }

    public void setSet(Set<String> set) {
        mSet = set;
    }

    class ViewHolder {
        TextView mIdTvItemSelectTimeDay;
        View itemView;
    }

    interface OnItemClickListener {
        void onItemClick(View view, int position);
    }
}

2、item布局文件item_select_time：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/item_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/white">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="5dp"
        android:gravity="center"
        android:orientation="vertical">

        <TextView
            android:id="@+id/id_tv_item_select_time_day"
            android:layout_width="25dp"
            android:layout_height="25dp"
            android:background="@drawable/bg_course_can_appointment"
            android:gravity="center"
            android:text="天"
            android:textSize="14sp"
            android:textStyle="bold" />
    </LinearLayout>
</RelativeLayout>

最后就是在activity中使用了：

我的思路是，不管点击是上一年、下一年、上一个月、下一个月之前都会取出当前的时间，格式为：yyyy年MM月dd，

然后（mTitleDateTv为顶部的TextView）：

private final String FORMAT_TYPE = "yyyy年MM月dd";mAdapter = new CalendarAdapter(this, mCurrentTime);//mCurrentTime为当前时间的龙类型数据
gridView.setAdapter(mAdapter);
/**
 * 上一年
 */
private void displayLastYearView() {
    long tempTime = SpecialCalendar.StringToLong(mTitleDateTv.getText().toString().trim(), FORMAT_TYPE);
    int year = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "yyyy")).intValue() - 1;
    int month = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "MM")).intValue();
    int day = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "dd")).intValue();
    Logger.logI(Logger.APPOINTMENT, "CourseTableActivity-->displayNextYear->year：" + year + ",month:" + month + ",day:" + day);
    upDateData(year, month, day);
}

/**
 * 下一年
 */
private void displayNextYear() {
    long tempTime = SpecialCalendar.StringToLong(mTitleDateTv.getText().toString().trim(), FORMAT_TYPE);
    int year = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "yyyy")).intValue() + 1;
    int month = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "MM")).intValue();
    int day = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "dd")).intValue();
    upDateData(year, month, day);
}

/**
 * 上一个月
 */
private void displayLastMonthView() {
    long tempTime = SpecialCalendar.StringToLong(mTitleDateTv.getText().toString().trim(), FORMAT_TYPE);
    int year = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "yyyy")).intValue();
    int month = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "MM")).intValue() - 1;
    int day = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "dd")).intValue();
    if (month == 0) {
        year = year - 1;
        month = 12;
    }
    upDateData(year, month, day);
}

/**
 * 下一个月
 */
private void displayNextMonth() {
    long tempTime = SpecialCalendar.StringToLong(mTitleDateTv.getText().toString().trim(), FORMAT_TYPE);
    int year = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "yyyy")).intValue();
    int month = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "MM")).intValue() + 1;
    int day = Integer.valueOf(SpecialCalendar.LongToString(tempTime, "dd")).intValue();
    if (month > 12) {
        year = year + 1;
        month = 1;
    }
    upDateData(year, month, day);
}

private void upDateData(int year, int month, int day) {
    mAdapter.upData(year, month);
    mAdapter.notifyDataSetChanged();
}

提供下时间工具类:SpecialCalendar

package cn.longmaster.hospital.doctor.view.timetable;

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

/**
 *  * 日历工具类
 *  
 */
public class SpecialCalendar {
    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
     *    * @param year
     *    * @return
     *    
     */
    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
     *    * @param isLeapyear
     *    * @param month
     *    * @return
     *    
     */

    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
     *    * @param year
     *    * @param month
     *    * @return
     *    
     */
    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;
    }

    /**
     * 时间string转long
     *
     * @param time
     * @param formatType
     * @return
     */
    public static long StringToLong(String time, String formatType) {
        if (time != null) {
            Date date = StringToDate(time, formatType);
            return date.getTime();
        }
        return 0;
    }

    /**
     * 时long转string
     *
     * @param num
     * @param formatType
     * @return
     */
    public static String LongToString(long num, String formatType) {
        Date date = LongToDate(num);
        return DateToString(date, formatType);

    }

    /**
     * 时间String转Date
     *
     * @param time
     * @param formatType
     * @return
     */
    public static Date StringToDate(String time, String formatType) {
        SimpleDateFormat formatter = new SimpleDateFormat(formatType);
        Date date = null;
        try {
            if (time != null) {
                date = formatter.parse(time);
            }
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

    /**
     * 时间LongToDate
     *
     * @param num
     * @return
     */
    public static Date LongToDate(long num) {
        Date date = new Date(num);
        return date;
    }

    /**
     * 时间DateToString
     *
     * @param date
     * @param formatType
     * @return
     */
    public static String DateToString(Date date, String formatType) {
        if (date != null) {
            return new SimpleDateFormat(formatType).format(date);
        }
        return null;
    }

    /**
     * 时间DateToLong
     *
     * @param date
     * @return
     */
    public static long DateToLong(Date date) {
        if (date != null) {
            return date.getTime();
        }
        return 0;

    }

    /**
     * 下个或上个月
     *
     * @param date
     * @return
     */
    public static String getMonth(Date date, int i) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.set(Calendar.MONTH, calendar.get(Calendar.MONTH) + i);
        Date time = calendar.getTime();
        return DateToString(time, "yyyy年MM月dd");
    }

    /**
     * 获取星期
     */
    public static String getWeek(Date date) {
        String[] weeks = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int week_index = cal.get(Calendar.DAY_OF_WEEK) - 1;
        if (week_index < 0) {
            week_index = 0;
        }
        return weeks[week_index];
    }
    /**
     *    * 保留N位整数,不足前面补0
     *    *
     *    * @param file String
     *    * @param bit 位数
     *    * @return
     *    
     */
    public static String getBitStr(String file, int bit) {
        while (file.length() < bit)
            file = "0" + file;
        return file;
    }
}