Android中单行横向滑动的日历

1.代码实现

直接上代码：
MainActivity.java

package com.zhoujian.horizontalcalendar.activity;

import android.app.Activity;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.util.Log;
import android.view.GestureDetector;
import android.view.GestureDetector.OnGestureListener;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.animation.AnimationUtils;
import android.widget.AbsListView.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.ViewFlipper;
import com.zhoujian.horizontalcalendar.R;
import com.zhoujian.horizontalcalendar.adapter.DateAdapter;
import com.zhoujian.horizontalcalendar.adapter.SpecialCalendar;
import java.text.SimpleDateFormat;
import java.util.Date;

public class MainActivity extends Activity implements OnGestureListener {
    private static String TAG = "MainActivity";
    private ViewFlipper flipper1 = null;
    private GridView gridView = null;
    private GestureDetector gestureDetector = null;
    private int year_c = 0;
    private int month_c = 0;
    private int day_c = 0;
    private int week_c = 0;
    private int week_num = 0;
    private String currentDate = "";
    private DateAdapter dateAdapter;
    private int daysOfMonth = 0;
    private int dayOfWeek = 0;
    private int weeksOfMonth = 0;
    private SpecialCalendar sc = null;
    private boolean isLeapyear = false;
    private int selectPostion = 0;
    private String dayNumbers[] = new String[7];
    private TextView tvDate;
    private int currentYear;
    private int currentMonth;
    private int currentWeek;
    private int currentDay;
    private int currentNum;


    public MainActivity() {
        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]);
        currentYear = year_c;
        currentMonth = month_c;
        currentDay = day_c;
        sc = new SpecialCalendar();
        getCalendar(year_c, month_c);
        week_num = getWeeksOfMonth();
        currentNum = week_num;
        if (dayOfWeek == 7) {
            week_c = currentDay / 7 + 1;
        } else {
            if (currentDay <= (7 - dayOfWeek)) {
                week_c = 1;
            } else {
                if ((currentDay - (7 - dayOfWeek)) % 7 == 0) {
                    week_c = (currentDay - (7 - dayOfWeek)) / 7 + 1;
                } else {
                    week_c = (currentDay - (7 - dayOfWeek)) / 7 + 2;
                }
            }
        }
        currentWeek = week_c;
        getCurrent();

    }


    public int getWeeksOfMonth(int year, int month) {
        int preMonthRelax = 0;
        int dayFirst = getWhichDayOfWeek(year, month);
        int days = sc.getDaysOfMonth(sc.isLeapYear(year), month);
        if (dayFirst != 7) {
            preMonthRelax = dayFirst;
        }
        if ((days + preMonthRelax) % 7 == 0) {
            weeksOfMonth = (days + preMonthRelax) / 7;
        } else {
            weeksOfMonth = (days + preMonthRelax) / 7 + 1;
        }
        return weeksOfMonth;

    }


    public int getWhichDayOfWeek(int year, int month) {
        return sc.getWeekdayOfMonth(year, month);

    }


    public int getLastDayOfWeek(int year, int month) {
        return sc.getWeekDayOfLastMonth(year, month,
                sc.getDaysOfMonth(isLeapyear, month));
    }

    public void getCalendar(int year, int month) {
        isLeapyear = sc.isLeapYear(year);
        daysOfMonth = sc.getDaysOfMonth(isLeapyear, month);
        dayOfWeek = sc.getWeekdayOfMonth(year, month);
    }

    public int getWeeksOfMonth() {
        int preMonthRelax = 0;
        if (dayOfWeek != 7) {
            preMonthRelax = dayOfWeek;
        }
        if ((daysOfMonth + preMonthRelax) % 7 == 0) {
            weeksOfMonth = (daysOfMonth + preMonthRelax) / 7;
        } else {
            weeksOfMonth = (daysOfMonth + preMonthRelax) / 7 + 1;
        }
        return weeksOfMonth;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tvDate = (TextView) findViewById(R.id.tv_date);
        tvDate.setText(year_c + "年" + month_c + "月" + day_c + "日");
        gestureDetector = new GestureDetector(this);
        flipper1 = (ViewFlipper) findViewById(R.id.flipper1);
        dateAdapter = new DateAdapter(this, currentYear, currentMonth,currentWeek, currentWeek == 1 ? true : false);
        addGridView();
        dayNumbers = dateAdapter.getDayNumbers();
        gridView.setAdapter(dateAdapter);
        selectPostion = dateAdapter.getTodayPosition();
        gridView.setSelection(selectPostion);
        flipper1.addView(gridView, 0);
    }

    private void addGridView() {
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
        gridView = new GridView(this);
        gridView.setNumColumns(7);
        gridView.setGravity(Gravity.CENTER_VERTICAL);
        gridView.setSelector(new ColorDrawable(Color.TRANSPARENT));
        gridView.setVerticalSpacing(1);
        gridView.setHorizontalSpacing(1);
        gridView.setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                return MainActivity.this.gestureDetector.onTouchEvent(event);
            }
        });

        gridView.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView parent, View view,
                    int position, long id) {
                Log.i(TAG, "day:" + dayNumbers[position]);
                selectPostion = position;
                dateAdapter.setSeclection(position);
                dateAdapter.notifyDataSetChanged();
                tvDate.setText(dateAdapter.getCurrentYear(selectPostion) + "年"+ dateAdapter.getCurrentMonth(selectPostion) + "月"+ dayNumbers[position] + "日");
            }
        });
        gridView.setLayoutParams(params);
    }

    @Override
    protected void onPause() {
        super.onPause();
    }

    @Override
    public boolean onDown(MotionEvent e) {

        return false;
    }

    @Override
    public void onShowPress(MotionEvent e) {

    }

    @Override
    public boolean onSingleTapUp(MotionEvent e) {
        return false;
    }

    @Override
    public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,float distanceY) {
        return false;
    }

    @Override
    public void onLongPress(MotionEvent e) {

    }

    public void getCurrent() {
        if (currentWeek > currentNum) {
            if (currentMonth + 1 <= 12) {
                currentMonth++;
            } else {
                currentMonth = 1;
                currentYear++;
            }
            currentWeek = 1;
            currentNum = getWeeksOfMonth(currentYear, currentMonth);
        } else if (currentWeek == currentNum) {
            if (getLastDayOfWeek(currentYear, currentMonth) == 6) {
            } else {
                if (currentMonth + 1 <= 12) {
                    currentMonth++;
                } else {
                    currentMonth = 1;
                    currentYear++;
                }
                currentWeek = 1;
                currentNum = getWeeksOfMonth(currentYear, currentMonth);
            }

        } else if (currentWeek < 1) {
            if (currentMonth - 1 >= 1) {
                currentMonth--;
            } else {
                currentMonth = 12;
                currentYear--;
            }
            currentNum = getWeeksOfMonth(currentYear, currentMonth);
            currentWeek = currentNum - 1;
        }
    }

    @Override
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,float velocityY) {
        int gvFlag = 0;
        if (e1.getX() - e2.getX() > 80) {
            addGridView();
            currentWeek++;
            getCurrent();
            dateAdapter = new DateAdapter(this, currentYear, currentMonth,currentWeek, currentWeek == 1 ? true : false);
            dayNumbers = dateAdapter.getDayNumbers();
            gridView.setAdapter(dateAdapter);
            tvDate.setText(dateAdapter.getCurrentYear(selectPostion) + "年"+ dateAdapter.getCurrentMonth(selectPostion) + "月"+ dayNumbers[selectPostion] + "日");
            gvFlag++;
            flipper1.addView(gridView, gvFlag);
            dateAdapter.setSeclection(selectPostion);
            this.flipper1.setInAnimation(AnimationUtils.loadAnimation(this,R.anim.push_left_in));
            this.flipper1.setOutAnimation(AnimationUtils.loadAnimation(this,R.anim.push_left_out));
            this.flipper1.showNext();
            flipper1.removeViewAt(0);
            return true;

        } else if (e1.getX() - e2.getX() < -80) {
            addGridView();
            currentWeek--;
            getCurrent();
            dateAdapter = new DateAdapter(this, currentYear, currentMonth,currentWeek, currentWeek == 1 ? true : false);
            dayNumbers = dateAdapter.getDayNumbers();
            gridView.setAdapter(dateAdapter);
            tvDate.setText(dateAdapter.getCurrentYear(selectPostion) + "年"+ dateAdapter.getCurrentMonth(selectPostion) + "月"+ dayNumbers[selectPostion] + "日");
            gvFlag++;
            flipper1.addView(gridView, gvFlag);
            dateAdapter.setSeclection(selectPostion);
            this.flipper1.setInAnimation(AnimationUtils.loadAnimation(this,R.anim.push_right_in));
            this.flipper1.setOutAnimation(AnimationUtils.loadAnimation(this,R.anim.push_right_out));
            this.flipper1.showPrevious();
            flipper1.removeViewAt(0);
            return true;
        }
        return false;
    }
}

DateAdapter.java

package com.zhoujian.horizontalcalendar.adapter;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.zhoujian.horizontalcalendar.R;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DateAdapter extends BaseAdapter
{
    private boolean isLeapyear = false;
    private int daysOfMonth = 0;
    private int dayOfWeek = 0;
    private int lastDaysOfMonth = 0;
    private Context context;
    private SpecialCalendar sc = null;
    private String[] dayNumber = new String[7];
    private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-M-d");
    private String sysDate = "";
    private String sys_year = "";
    private String sys_month = "";
    private String sys_day = "";
    private String currentYear = "";
    private String currentMonth = "";
    private String currentWeek = "";
    private String currentDay = "";
    private int weeksOfMonth;
    private int clickTemp = -1;
    private boolean isStart;


    public void setSeclection(int position) {
        clickTemp = position;
    }

    public DateAdapter() {
        Date date = new Date();
        sysDate = sdf.format(date);
        sys_year = sysDate.split("-")[0];
        sys_month = sysDate.split("-")[1];
        sys_day = sysDate.split("-")[2];
    }

    public DateAdapter(Context context, int year_c, int month_c, int week_c,boolean isStart) {
        this();
        this.context = context;
        this.isStart = isStart;
        sc = new SpecialCalendar();
        currentYear = String.valueOf(year_c);
        currentMonth = String.valueOf(month_c);
        currentDay = String.valueOf(sys_day);
        getCalendar(Integer.parseInt(currentYear),Integer.parseInt(currentMonth));
        currentWeek = String.valueOf(week_c);
        getWeek(Integer.parseInt(currentYear), Integer.parseInt(currentMonth),Integer.parseInt(currentWeek));

    }

    public int getTodayPosition() {
        int todayWeek = sc.getWeekDayOfLastMonth(Integer.parseInt(sys_year),
                Integer.parseInt(sys_month), Integer.parseInt(sys_day));
        if (todayWeek == 7) {
            clickTemp = 0;
        } else {
            clickTemp = todayWeek;
        }
        return clickTemp;
    }


    public int getCurrentMonth(int position) {
        int thisDayOfWeek = sc.getWeekdayOfMonth(Integer.parseInt(currentYear),
                Integer.parseInt(currentMonth));
        if (isStart) {
            if (thisDayOfWeek != 7) {
                if (position < thisDayOfWeek) {
                    return Integer.parseInt(currentMonth) - 1 == 0 ? 12
                            : Integer.parseInt(currentMonth) - 1;
                } else {
                    return Integer.parseInt(currentMonth);
                }
            } else {
                return Integer.parseInt(currentMonth);
            }
        } else {
            return Integer.parseInt(currentMonth);
        }

    }


    public int getCurrentYear(int position) {
        int thisDayOfWeek = sc.getWeekdayOfMonth(Integer.parseInt(currentYear),
                Integer.parseInt(currentMonth));
        if (isStart) {
            if (thisDayOfWeek != 7) {
                if (position < thisDayOfWeek) {
                    return Integer.parseInt(currentMonth) - 1 == 0 ? Integer
                            .parseInt(currentYear) - 1 : Integer
                            .parseInt(currentYear);
                } else {
                    return Integer.parseInt(currentYear);
                }
            } else {
                return Integer.parseInt(currentYear);
            }
        } else {
            return Integer.parseInt(currentYear);
        }
    }

    public void getCalendar(int year, int month) {
        isLeapyear = sc.isLeapYear(year);
        daysOfMonth = sc.getDaysOfMonth(isLeapyear, month);
        dayOfWeek = sc.getWeekdayOfMonth(year, month);
        lastDaysOfMonth = sc.getDaysOfMonth(isLeapyear, month - 1);
    }

    public void getWeek(int year, int month, int week) {
        for (int i = 0; i < dayNumber.length; i++) {
            if (dayOfWeek == 7) {
                dayNumber[i] = String.valueOf((i + 1) + 7 * (week - 1));
            } else {
                if (week == 1) {
                    if (i < dayOfWeek) {
                        dayNumber[i] = String.valueOf(lastDaysOfMonth
                                - (dayOfWeek - (i + 1)));
                    } else {
                        dayNumber[i] = String.valueOf(i - dayOfWeek + 1);
                    }
                } else {
                    dayNumber[i] = String.valueOf((7 - dayOfWeek + 1 + i) + 7
                            * (week - 2));
                }
            }

        }
    }

    public String[] getDayNumbers() {
        return dayNumber;
    }


    public int getWeeksOfMonth() {

        int preMonthRelax = 0;
        if (dayOfWeek != 7) {
            preMonthRelax = dayOfWeek;
        }
        if ((daysOfMonth + preMonthRelax) % 7 == 0) {
            weeksOfMonth = (daysOfMonth + preMonthRelax) / 7;
        } else {
            weeksOfMonth = (daysOfMonth + preMonthRelax) / 7 + 1;
        }
        return weeksOfMonth;
    }


    public void getDayInWeek(int year, int month) {

    }

    @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) {
        Holder holder;
        if (convertView == null) {
            holder = new Holder();
            convertView = LayoutInflater.from(context).inflate(
                    R.layout.item_calendar, null);
            holder.tv = (TextView) convertView.findViewById(R.id.tv_calendar);
            holder.tv_month = (TextView) convertView
                    .findViewById(R.id.tv_month);
            holder.ll_data = (LinearLayout) convertView
                    .findViewById(R.id.ll_data);
            holder.view_line = (View) convertView.findViewById(R.id.view_line);
            convertView.setTag(holder);
        } else {
            holder = (Holder) convertView.getTag();
        }
        holder.tv.setText(dayNumber[position]);

        holder.tv_month.setText(getCurrentMonth(position)+".");


        if (clickTemp == position) {
            holder.ll_data.setSelected(true);

            holder.view_line.setVisibility(View.VISIBLE);
        } else {
            holder.ll_data.setSelected(false);

            holder.view_line.setVisibility(View.INVISIBLE);
        }
        return convertView;
    }

    class Holder {
        LinearLayout ll_data;
        TextView tv;
        TextView tv_month;
        View view_line;
    }
}

SpecialCalendar.java

package com.zhoujian.horizontalcalendar.adapter;

import java.util.Calendar;

public class SpecialCalendar {

    private int daysOfMonth = 0;
    private int dayOfWeek = 0;
    private int eachDayOfWeek = 0;


    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;
    }


    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;
    }


    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;
    }

    public int getWeekDayOfLastMonth(int year, int month, int day) {
        Calendar cal = Calendar.getInstance();
        cal.set(year, month - 1, day);
        eachDayOfWeek = cal.get(Calendar.DAY_OF_WEEK) - 1;
        return eachDayOfWeek;
    }

}

2.运行截图

3.源码下载

源码下载：https://github.com/zeke123/HorizontalCalendar