Android实现日历控件示例代码
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2023-12-05 20:45:10
做的是一个酒店的项目，可以选择入住和离开的日期。声明为了省事在网上找的资料，自己修改的逻辑，希望对需要的朋友有帮助。喜欢的给个好评。谢谢啦！祝生活愉快！
先上图...
做的是一个酒店的项目，可以选择入住和离开的日期。声明为了省事在网上找的资料，自己修改的逻辑，希望对需要的朋友有帮助。喜欢的给个好评。谢谢啦！祝生活愉快！
先上图
第一步，搭建布局xml
<scrollview xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<linearlayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<framelayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<textview
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/days_detail"
android:gravity="center"
android:padding="16dp"
android:text="选择住店离店日期"
android:textcolor="@color/white"
android:textsize="18sp" />
<imageview
android:id="@+id/back_to_up"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginleft="10dp"
android:layout_margintop="10dp"
android:src="@drawable/backto" />
</framelayout>
<framelayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<view
android:layout_width="match_parent"
android:layout_height="30dp"
android:background="@color/days_detail" />
<android.support.v7.widget.cardview
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_margintop="20dp"
android:padding="10dp"
app:cardcornerradius="10dp"
app:cardelevation="16dp">
<linearlayout
android:id="@+id/ll"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" />
</android.support.v7.widget.cardview>
</framelayout>
</linearlayout>
</scrollview>
第二部在编写逻辑
linearlayout ll;
mycalendar c1;
date date;
string nowday;
long nd = 1000 * 24l * 60l * 60l;//一天的毫秒数
simpledateformat simpledateformat, sd1, sd2;
sharedpreferences sp;
sharedpreferences.editor editor;
private string inday, outday//日期
sp_inday, sp_outday;//周几
activity extends baseactivity implements mycalendar.ondayselectlistener {
继承baseactivity实现点击日历的监听回调
private void init() {
list<string> listdate = getdatelist();
linearlayout.layoutparams params = new linearlayout.layoutparams(viewgroup.layoutparams.match_parent,
viewgroup.layoutparams.wrap_content);
for (int i = 0; i < listdate.size(); i++) {
c1 = new mycalendar(this);
c1.setlayoutparams(params);
date date = null;
try {
date = simpledateformat.parse(listdate.get(i));
} catch (parseexception e) {
e.printstacktrace();
}
if (!"".equals(sp_inday)) {
c1.setinday(sp_inday);
}
if (!"".equals(sp_outday)) {
c1.setoutday(sp_outday);
}
c1.settheday(date);
c1.setondayselectlistener(this);
ll.addview(c1);
}
}
@override
public void ondayselectlistener(view view, string date) {
//若日历日期小于当前日期，或日历日期-当前日期超过三个月，则不能点击
try {
if (simpledateformat.parse(date).gettime() < simpledateformat.parse(nowday).gettime()) {
return;
}
long dayxc = (simpledateformat.parse(date).gettime() - simpledateformat.parse(nowday).gettime()) / nd;
if (dayxc > 90) {
return;
}
} catch (parseexception e) {
e.printstacktrace();
}
//若以前已经选择了日期，则在进入日历后会显示以选择的日期，该部分作用则是重新点击日历时，清空以前选择的数据（包括背景图案）
if (!"".equals(sp_inday)) {
c1.viewin.setbackgroundcolor(color.white);
((textview) c1.viewin.findviewbyid(r.id.tv_calendar_day)).settextcolor(color.black);
((textview) c1.viewin.findviewbyid(r.id.tv_calendar)).settext("");
}
if (!"".equals(sp_outday)) {
c1.viewout.setbackgroundcolor(color.white);
((textview) c1.viewout.findviewbyid(r.id.tv_calendar_day)).settextcolor(color.black);
((textview) c1.viewout.findviewbyid(r.id.tv_calendar)).settext("");
}
string dateday = date.split("-")[2];
if (integer.parseint(dateday) < 10) {
dateday = date.split("-")[2].replace("0", "");
}
textview textdayview = (textview) view.findviewbyid(r.id.tv_calendar_day);
textview textview = (textview) view.findviewbyid(r.id.tv_calendar);
view.setbackgroundcolor(color.parsecolor("#33b5e5"));
textdayview.settextcolor(color.white);
if (null == inday || inday.equals("")) {
textdayview.settext(dateday);
textview.settext("入住");
inday = date;
} else {
if (inday.equals(date)) {
view.setbackgroundcolor(color.white);
textdayview.settext(dateday);
textdayview.settextcolor(color.black);
textview.settext("");
inday = "";
} else {
try {
if (simpledateformat.parse(date).gettime() < simpledateformat.parse(inday).gettime()) {
view.setbackgroundcolor(color.white);
textdayview.settextcolor(color.black);
toast.maketext(calendaractivity.this, "离开日期不能小于入住日期", toast.length_short).show();
return;
}
} catch (parseexception e) {
e.printstacktrace();
}
textdayview.settext(dateday);
textview.settext("离开");
outday = date;
editor.putstring("datein", inday);
editor.putstring("dateout", outday);
editor.commit();
finish();
}
}
}
//根据当前日期，向后数三个月（若当前day不是1号，为满足至少90天，则需要向后数4个月）
@suppresslint("simpledateformat")
public list<string> getdatelist() {
list<string> list = new arraylist<string>();
date date = new date();
int nowmon = date.getmonth() + 1;
string yyyy = sd1.format(date);
string dd = sd2.format(date);
if (nowmon == 9) {
list.add(simpledateformat.format(date));
list.add(yyyy + "-10-" + dd);
list.add(yyyy + "-11-" + dd);
if (!dd.equals("01")) {
list.add(yyyy + "-12-" + dd);
}
} else if (nowmon == 10) {
list.add(yyyy + "-10-" + dd);
list.add(yyyy + "-11-" + dd);
list.add(yyyy + "-12-" + dd);
if (!dd.equals("01")) {
list.add((integer.parseint(yyyy) + 1) + "-01-" + dd);
}
} else if (nowmon == 11) {
list.add(yyyy + "-11-" + dd);
list.add(yyyy + "-12-" + dd);
list.add((integer.parseint(yyyy) + 1) + "-01-" + dd);
if (!dd.equals("01")) {
list.add((integer.parseint(yyyy) + 1) + "-02-" + dd);
}
} else if (nowmon == 12) {
list.add(yyyy + "-12-" + dd);
list.add((integer.parseint(yyyy) + 1) + "-01-" + dd);
list.add((integer.parseint(yyyy) + 1) + "-02-" + dd);
if (!dd.equals("01")) {
list.add((integer.parseint(yyyy) + 1) + "-03-" + dd);
}
} else {
list.add(yyyy + "-" + getmon(nowmon) + "-" + dd);
list.add(yyyy + "-" + getmon((nowmon + 1)) + "-" + dd);
list.add(yyyy + "-" + getmon((nowmon + 2)) + "-" + dd);
if (!dd.equals("01")) {
list.add(yyyy + "-" + getmon((nowmon + 3)) + "-" + dd);
}
}
return list;
}
public string getmon(int mon) {
string month = "";
if (mon < 10) {
month = "0" + mon;
} else {
month = "" + mon;
}
return month;
}
第三部 编写监听，自定义的控件
public class mycalendar extends linearlayout {
private static context context;
private date theinday;
private string inday = "", outday = "";
public static view viewin;
public static view viewout;
public static string positionin;
public static string positionout;
public static final int weekdays = 7;
public static string[] week = {
"周日",
"周一",
"周二",
"周三",
"周四",
"周五",
"周六"
};
static long nd = 1000 * 24l * 60l * 60l;//一天的毫秒数
private list<string> gvlist;//存放天
private ondayselectlistener callback;//回调函数
private static string nowday = new simpledateformat("yyyy-mm-dd").format(new date());
private simpledateformat dateformat = new simpledateformat("yyyymm");//日期格式化
private static simpledateformat dateformat2 = new simpledateformat("yyyy-mm-dd");//日期格式化
/**
* 构造函数
*
* @param context
*/
public mycalendar(context context) {
super(context);
mycalendar.context = context;
}
/**
* 日期变量转成对应的星期字符串
*
* @param date
* @return
*/
public static string datetoweek(date date) {
calendar calendar = calendar.getinstance();
calendar.settime(date);
int dayindex = calendar.get(calendar.day_of_week);
if (dayindex < 1 || dayindex > weekdays) {
return null;
}
return week[dayindex - 1];
}
/**
* 获得天数差
*
* @param begin
* @param end
* @return
*/
public static long getdaydiff(date begin, date end) {
long day = 1;
if (end.gettime() < begin.gettime()) {
day = -1;
} else if (end.gettime() == begin.gettime()) {
day = 1;
} else {
day += (end.gettime() - begin.gettime()) / (24 * 60 * 60 * 1000);
}
return day;
}
/**
* 将yyyy-mm-dd类型转换成mm.dd
*
* @param time
* @return
* @throws parseexception
*/
public static string format1(string time) throws parseexception {
simpledateformat from = new simpledateformat("yyyy-mm-dd", locale.china);
simpledateformat to = new simpledateformat("mm.dd", locale.china);
return to.format(from.parse(time));
}
/**
* 获得指定日期的后一天
*
* @param specifiedday
* @return
*/
public static string getspecifieddayafter(string specifiedday) {
calendar c = calendar.getinstance();
date date = null;
try {
date = new simpledateformat("yy-mm-dd").parse(specifiedday);
} catch (parseexception e) {
e.printstacktrace();
}
c.settime(date);
int day = c.get(calendar.date);
c.set(calendar.date, day + 1);
string dayafter = new simpledateformat("yyyy-mm-dd")
.format(c.gettime());
return dayafter;
}
/**
* 构造函数
*
* @param context
*/
public mycalendar(context context, attributeset attrs) {
super(context, attrs);
mycalendar.context = context;
}
public void setinday(string inday) {
this.inday = inday;
}
public void setoutday(string outday) {
this.outday = outday;
}
public void settheday(date datein) {
this.theinday = datein;
init();
}
/**
* 初始化日期以及view等控件
*/
private void init() {
gvlist = new arraylist<string>();//存放天
final calendar cal = calendar.getinstance();//获取日历实例
cal.settime(theinday);//cal设置为当天的
cal.set(calendar.date, 1);//cal设置当前day为当前月第一天
int tempsum = countneedhowmuchempety(cal);//获取当前月第一天为星期几
int daynuminmonth = getdaynuminmonth(cal);//获取当前月有多少天
setgvlistdata(tempsum, daynuminmonth, cal.get(calendar.year) + "-" + getmonth((cal.get(calendar.month) + 1)));
view view = layoutinflater.from(context).inflate(r.layout.comm_calendar, this, true);//获取布局，开始初始化
textview tv_year = (textview) view.findviewbyid(r.id.tv_year);
if (cal.get(calendar.year) > new date().getyear()) {
tv_year.setvisibility(view.visible);
tv_year.settext(cal.get(calendar.year) + "年");
}
textview tv_month = (textview) view.findviewbyid(r.id.tv_month);
tv_month.settext(string.valueof(theinday.getmonth() + 1));
mygridview gv = (mygridview) view.findviewbyid(r.id.gv_calendar);
calendargridviewadapter gridviewadapter = new calendargridviewadapter(gvlist, inday, outday);
gv.setadapter(gridviewadapter);
gv.setonitemclicklistener(new onitemclicklistener() {
@override
public void onitemclick(adapterview<?> adapterview, view arg1, int position, long arg3) {
string choiceday = (string) adapterview.getadapter().getitem(position);
string[] date = choiceday.split(",");
string day = date[1];
if (!" ".equals(day)) {
if (integer.parseint(day) < 10) {
day = "0" + date[1];
}
choiceday = date[0] + "-" + day;
if (callback != null) {//调用回调函数回调数据
callback.ondayselectlistener(arg1, choiceday);
}
}
}
});
}
/**
* 为gridview中添加需要展示的数据
*
* @param tempsum
* @param daynuminmonth
*/
private void setgvlistdata(int tempsum, int daynuminmonth, string ym) {
gvlist.clear();
for (int i = 0; i < tempsum; i++) {
gvlist.add(" , ");
}
for (int j = 1; j <= daynuminmonth; j++) {
gvlist.add(ym + "," + string.valueof(j));
}
}
private string getmonth(int month) {
string mon = "";
if (month < 10) {
mon = "0" + month;
} else {
mon = "" + month;
}
return mon;
}
/**
* 获取当前月的总共天数
*
* @param cal
* @return cal.getactualmaximum(calendar.date)
*/
private int getdaynuminmonth(calendar cal) {
return cal.getactualmaximum(calendar.date);
}
/**
* 获取当前月第一天在第一个礼拜的第几天，得出第一天是星期几
*
* @param cal
* @return firstdayinweek
*/
private int countneedhowmuchempety(calendar cal) {
int firstdayinweek = cal.get(calendar.day_of_week) - 1;
log.e("mycalendar", string.valueof(firstdayinweek));
return firstdayinweek;
}
/**
* gridview中adapter的viewholder
*
* @author wx
*/
static class grideviewholder {
textview tvday, tv;
}
/**
* gridview的adapter
*
* @author administrator
*/
static class calendargridviewadapter extends baseadapter {
list<string> gvlist;//存放天
string inday, outday;
public calendargridviewadapter(list<string> gvlist, string inday, string outday) {
super();
this.gvlist = gvlist;
this.inday = inday;
this.outday = outday;
}
@override
public int getcount() {
return gvlist.size();
}
@override
public string getitem(int position) {
return gvlist.get(position);
}
@override
public long getitemid(int position) {
return position;
}
@override
public view getview(int position, view convertview, viewgroup parent) {
grideviewholder holder;
if (convertview == null) {
holder = new grideviewholder();
convertview = inflate(context, r.layout.common_calendar_gridview_item, null);
holder.tv = (textview) convertview.findviewbyid(r.id.tv_calendar);
holder.tvday = (textview) convertview.findviewbyid(r.id.tv_calendar_day);
convertview.settag(holder);
} else {
holder = (grideviewholder) convertview.gettag();
}
string[] date = getitem(position).split(",");
holder.tvday.settext(date[1]);
if ((position + 1) % 7 == 0 || (position) % 7 == 0) {
holder.tvday.settextcolor(color.parsecolor("#339900"));
}
if (!date[1].equals(" ")) {
string day = date[1];
if (integer.parseint(date[1]) < 10) {
day = "0" + date[1];
}
if ((date[0] + "-" + day).equals(nowday)) {
holder.tvday.settextcolor(color.parsecolor("#ff6600"));
holder.tvday.settextsize(15);
holder.tvday.settext("今天");
}
if (!"".equals(inday) && (date[0] + "-" + day).equals(inday)) {
convertview.setbackgroundcolor(color.parsecolor("#33b5e5"));
holder.tvday.settextcolor(color.white);
holder.tvday.settext(date[1]);
holder.tv.settext("入住");
viewin = convertview;
positionin = date[1];
}
if (!"".equals(outday) && (date[0] + "-" + day).equals(outday)) {
convertview.setbackgroundcolor(color.parsecolor("#33b5e5"));
holder.tvday.settextcolor(color.white);
holder.tvday.settext(date[1]);
holder.tv.settext("离开");
viewout = convertview;
positionout = date[1];
}
try {
//若日历日期<当前日期，则不能选择
if (dateformat2.parse(date[0] + "-" + day).gettime() < dateformat2.parse(nowday).gettime()) {
holder.tvday.settextcolor(color.parsecolor("#999999"));
}
//若日历日期-当前日期>90天，则不能选择
long dayxc = (dateformat2.parse(date[0] + "-" + day).gettime() - dateformat2.parse(nowday).gettime()) / nd;
if (dayxc > 90) {
holder.tvday.settextcolor(color.parsecolor("#999999"));
}
} catch (parseexception e) {
e.printstacktrace();
}
}
return convertview;
}
}
/**
* 自定义监听接口
*
* @author administrator
*/
public interface ondayselectlistener {
void ondayselectlistener(view view, string date);
}
/**
* 自定义监听接口设置对象
*
* @param o
*/
public void setondayselectlistener(ondayselectlistener o) {
callback = o;
}
}
在界面显示选择的日期
接下来就是为了显示选择的日期进行逻辑判断，包括字符串的转换以及日期格式的转换，日期的计算等。
simpledateformat = new simpledateformat("yyyy-mm-dd");
if ("".equals(home_into_date.gettext().tostring())
&& "".equals(home_out_date.gettext().tostring())) {
inday = simpledateformat.format(new date());
try {
//转换时间格式
string changedate = mycalendar.format1(inday);
date datein = simpledateformat.parse(inday);
//将日期转换成周
string weekin = mycalendar.datetoweek(datein);
home_into_date.settext("" + changedate + weekin);
string nextday = mycalendar.format1(mycalendar.getspecifieddayafter(inday));
date dateout = simpledateformat.parse(mycalendar.getspecifieddayafter(inday));
string weekout = mycalendar.datetoweek(dateout);
home_out_date.settext("" + nextday + weekout);
long days = mycalendar.getdaydiff(datein, dateout);
home_total_days.settext("共" + (days - 1) + "晚");
} catch (parseexception e) {
e.printstacktrace();
}
} else {
//这里使用sp传的值
inday = pro.getstring("datein", "");
outday = pro.getstring("dateout", "");
try {
string changedate = mycalendar.format1(inday);
date datein = simpledateformat.parse(inday);
//将日期转换成周
string weekin = mycalendar.datetoweek(datein);
home_into_date.settext("" + changedate + weekin);
string outday = mycalendar.format1(outday);
date dateout = simpledateformat.parse(outday);
string weekout = mycalendar.datetoweek(dateout);
home_out_date.settext("" + outday + weekout);
long days = mycalendar.getdaydiff(datein, dateout);
home_total_days.settext("共" + (days - 1) + "晚");
} catch (parseexception e) {
e.printstacktrace();
}
其中有几个布局，给图自己写吧
comm_calendar
common_calendar_gridview_item
<linearlayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:orientation="vertical">
<linearlayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:orientation="vertical">
<textview
android:id="@+id/tv_calendar_day"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:textsize="15sp" />
<textview
android:id="@+id/tv_calendar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:textcolor="#ffffff"
android:textsize="15sp" />
</linearlayout>
<view
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:background="#e4e4e4" />
</linearlayout>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。