Android学习教程之日历库使用（15）

本教程为大家分享了android日历库的使用方法，供大家参考，具体内容如下

mainactivity.java代码:

package siso.weekv;

import android.content.intent;
import android.support.v7.app.appcompatactivity;
import android.os.bundle;
import android.view.view;

public class mainactivity extends appcompatactivity {

 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_main);

  findviewbyid(r.id.buttonbasic).setonclicklistener(new view.onclicklistener() {
   @override
   public void onclick(view v) {
    intent intent = new intent(mainactivity.this, basicactivity.class);
    startactivity(intent);
   }
  });

  findviewbyid(r.id.buttonasynchronous).setonclicklistener(new view.onclicklistener() {
   @override
   public void onclick(view v) {
    intent intent = new intent(mainactivity.this, asynchronousactivity.class);
    startactivity(intent);
   }
  });
 }

}

asynchronousactivity.java代码:

package siso.weekv;

import android.widget.toast;


import java.util.arraylist;
import java.util.calendar;
import java.util.list;

import retrofit.callback;
import retrofit.restadapter;
import retrofit.retrofiterror;
import retrofit.client.response;
import siso.weekv.apiclient.event;
import siso.weekv.apiclient.myjsonservice;
import siso.wvlib.weekviewevent;


/**
 * an example of how events can be fetched from network and be displayed on the week view.
 * created by raquib-ul-alam kanak on 1/3/2014.
 * website: http://alamkanak.github.io
 */
public class asynchronousactivity extends baseactivity implements callback<list<event>> {

 private list<weekviewevent> events = new arraylist<weekviewevent>();
 boolean callednetwork = false;

 @override
 public list<? extends weekviewevent> onmonthchange(int newyear, int newmonth) {

  // download events from network if it hasn't been done already. to understand how events are
  // downloaded using retrofit, visit http://square.github.io/retrofit
  if (!callednetwork) {
   restadapter retrofit = new restadapter.builder()
     .setendpoint("https://api.myjson.com/bins")
     .build();
   myjsonservice service = retrofit.create(myjsonservice.class);
   service.listevents(this);
   callednetwork = true;
  }

  // return only the events that matches newyear and newmonth.
  list<weekviewevent> matchedevents = new arraylist<weekviewevent>();
  for (weekviewevent event : events) {
   if (eventmatches(event, newyear, newmonth)) {
    matchedevents.add(event);
   }
  }
  return matchedevents;
 }

 /**
  * checks if an event falls into a specific year and month.
  * @param event the event to check for.
  * @param year the year.
  * @param month the month.
  * @return true if the event matches the year and month.
  */
 private boolean eventmatches(weekviewevent event, int year, int month) {
  return (event.getstarttime().get(calendar.year) == year && event.getstarttime().get(calendar.month) == month - 1) || (event.getendtime().get(calendar.year) == year && event.getendtime().get(calendar.month) == month - 1);
 }

 @override
 public void success(list<event> events, response response) {
  this.events.clear();
  for (event event : events) {
   this.events.add(event.toweekviewevent());
  }
  getweekview().notifydatasetchanged();
 }

 @override
 public void failure(retrofiterror error) {
  error.printstacktrace();
  toast.maketext(this, r.string.async_error, toast.length_short).show();
 }
}

baseactivity.java

package siso.weekv;

import android.graphics.rectf;
import android.os.bundle;
import android.support.v7.app.appcompatactivity;
import android.util.typedvalue;
import android.view.menu;
import android.view.menuitem;
import android.widget.toast;

import java.text.simpledateformat;
import java.util.calendar;
import java.util.locale;

import siso.wvlib.datetimeinterpreter;
import siso.wvlib.monthloader;
import siso.wvlib.weekview;
import siso.wvlib.weekviewevent;

public abstract class baseactivity extends appcompatactivity implements weekview.eventclicklistener, monthloader.monthchangelistener, weekview.eventlongpresslistener, weekview.emptyviewlongpresslistener {
 private static final int type_day_view = 1;
 private static final int type_three_day_view = 2;
 private static final int type_week_view = 3;
 private int mweekviewtype = type_three_day_view;
 private weekview mweekview;


 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_base);

  // get a reference for the week view in the layout.
  mweekview = (weekview) findviewbyid(r.id.weekview);

  // show a toast message about the touched event.
  mweekview.setoneventclicklistener(this);


  mweekview.setmonthchangelistener(this);

  // set long press listener for events.
  mweekview.seteventlongpresslistener(this);


  mweekview.setemptyviewlongpresslistener(this);


  setupdatetimeinterpreter(false);
 }


 @override
 public boolean oncreateoptionsmenu(menu menu) {
  getmenuinflater().inflate(r.menu.main, menu);
  return true;
 }

 @override
 public boolean onoptionsitemselected(menuitem item) {
  int id = item.getitemid();
  setupdatetimeinterpreter(id == r.id.action_week_view);
  switch (id){
   case r.id.action_today:
    mweekview.gototoday();
    return true;
   case r.id.action_day_view:
    if (mweekviewtype != type_day_view) {
     item.setchecked(!item.ischecked());
     mweekviewtype = type_day_view;
     mweekview.setnumberofvisibledays(1);

     // lets change some dimensions to best fit the view.
     mweekview.setcolumngap((int) typedvalue.applydimension(typedvalue.complex_unit_dip, 8, getresources().getdisplaymetrics()));
     mweekview.settextsize((int) typedvalue.applydimension(typedvalue.complex_unit_sp, 12, getresources().getdisplaymetrics()));
     mweekview.seteventtextsize((int) typedvalue.applydimension(typedvalue.complex_unit_sp, 12, getresources().getdisplaymetrics()));
    }
    return true;
   case r.id.action_three_day_view:
    if (mweekviewtype != type_three_day_view) {
     item.setchecked(!item.ischecked());
     mweekviewtype = type_three_day_view;
     mweekview.setnumberofvisibledays(3);

     // lets change some dimensions to best fit the view.
     mweekview.setcolumngap((int) typedvalue.applydimension(typedvalue.complex_unit_dip, 8, getresources().getdisplaymetrics()));
     mweekview.settextsize((int) typedvalue.applydimension(typedvalue.complex_unit_sp, 12, getresources().getdisplaymetrics()));
     mweekview.seteventtextsize((int) typedvalue.applydimension(typedvalue.complex_unit_sp, 12, getresources().getdisplaymetrics()));
    }
    return true;
   case r.id.action_week_view:
    if (mweekviewtype != type_week_view) {
     item.setchecked(!item.ischecked());
     mweekviewtype = type_week_view;
     mweekview.setnumberofvisibledays(7);


     mweekview.setcolumngap((int) typedvalue.applydimension(typedvalue.complex_unit_dip, 2, getresources().getdisplaymetrics()));
     mweekview.settextsize((int) typedvalue.applydimension(typedvalue.complex_unit_sp, 10, getresources().getdisplaymetrics()));
     mweekview.seteventtextsize((int) typedvalue.applydimension(typedvalue.complex_unit_sp, 10, getresources().getdisplaymetrics()));
    }
    return true;
  }

  return super.onoptionsitemselected(item);
 }


 private void setupdatetimeinterpreter(final boolean shortdate) {
  mweekview.setdatetimeinterpreter(new datetimeinterpreter() {
   @override
   public string interpretdate(calendar date) {
    simpledateformat weekdaynameformat = new simpledateformat("eee", locale.getdefault());
    string weekday = weekdaynameformat.format(date.gettime());
    simpledateformat format = new simpledateformat(" m/d", locale.getdefault());


    if (shortdate)
     weekday = string.valueof(weekday.charat(0));
    return weekday.touppercase() + format.format(date.gettime());
   }

   @override
   public string interprettime(int hour) {
    return hour > 11 ? (hour - 12) + " pm" : (hour == 0 ? "12 am" : hour + " am");
   }
  });
 }

 protected string geteventtitle(calendar time) {
  return string.format("事件 %02d:%02d %s/%d", time.get(calendar.hour_of_day), time.get(calendar.minute), time.get(calendar.month)+1, time.get(calendar.day_of_month));
 }

 @override
 public void oneventclick(weekviewevent event, rectf eventrect) {
  toast.maketext(this, "点击 " + event.getname(), toast.length_short).show();
 }

 @override
 public void oneventlongpress(weekviewevent event, rectf eventrect) {
  toast.maketext(this, "长按事件: " + event.getname(), toast.length_short).show();
 }

 @override
 public void onemptyviewlongpress(calendar time) {
  toast.maketext(this, "空视图长按: " + geteventtitle(time), toast.length_short).show();
 }

 public weekview getweekview() {
  return mweekview;
 }
}

basicactivity.java

package siso.weekv;


import java.util.arraylist;
import java.util.calendar;
import java.util.list;

import siso.wvlib.weekviewevent;


public class basicactivity extends baseactivity {

 @override
 public list<? extends weekviewevent> onmonthchange(int newyear, int newmonth) {
  // populate the week view with some events.
  list<weekviewevent> events = new arraylist<weekviewevent>();

  calendar starttime = calendar.getinstance();
  starttime.set(calendar.hour_of_day, 3);
  starttime.set(calendar.minute, 0);
  starttime.set(calendar.month, newmonth-1);
  starttime.set(calendar.year, newyear);
  calendar endtime = (calendar) starttime.clone();
  endtime.add(calendar.hour, 1);
  endtime.set(calendar.month, newmonth-1);
  weekviewevent event = new weekviewevent(1, geteventtitle(starttime), starttime, endtime);
  event.setcolor(getresources().getcolor(r.color.event_color_01));
  events.add(event);

  starttime = calendar.getinstance();
  starttime.set(calendar.hour_of_day, 3);
  starttime.set(calendar.minute, 30);
  starttime.set(calendar.month, newmonth-1);
  starttime.set(calendar.year, newyear);
  endtime = (calendar) starttime.clone();
  endtime.set(calendar.hour_of_day, 4);
  endtime.set(calendar.minute, 30);
  endtime.set(calendar.month, newmonth-1);
  event = new weekviewevent(10, geteventtitle(starttime), starttime, endtime);
  event.setcolor(getresources().getcolor(r.color.event_color_02));
  events.add(event);

  starttime = calendar.getinstance();
  starttime.set(calendar.hour_of_day, 4);
  starttime.set(calendar.minute, 20);
  starttime.set(calendar.month, newmonth-1);
  starttime.set(calendar.year, newyear);
  endtime = (calendar) starttime.clone();
  endtime.set(calendar.hour_of_day, 5);
  endtime.set(calendar.minute, 0);
  event = new weekviewevent(10, geteventtitle(starttime), starttime, endtime);
  event.setcolor(getresources().getcolor(r.color.event_color_03));
  events.add(event);

  starttime = calendar.getinstance();
  starttime.set(calendar.hour_of_day, 5);
  starttime.set(calendar.minute, 30);
  starttime.set(calendar.month, newmonth-1);
  starttime.set(calendar.year, newyear);
  endtime = (calendar) starttime.clone();
  endtime.add(calendar.hour_of_day, 2);
  endtime.set(calendar.month, newmonth-1);
  event = new weekviewevent(2, geteventtitle(starttime), starttime, endtime);
  event.setcolor(getresources().getcolor(r.color.event_color_02));
  events.add(event);

  starttime = calendar.getinstance();
  starttime.set(calendar.hour_of_day, 5);
  starttime.set(calendar.minute, 0);
  starttime.set(calendar.month, newmonth-1);
  starttime.set(calendar.year, newyear);
  starttime.add(calendar.date, 1);
  endtime = (calendar) starttime.clone();
  endtime.add(calendar.hour_of_day, 3);
  endtime.set(calendar.month, newmonth - 1);
  event = new weekviewevent(3, geteventtitle(starttime), starttime, endtime);
  event.setcolor(getresources().getcolor(r.color.event_color_03));
  events.add(event);

  starttime = calendar.getinstance();
  starttime.set(calendar.day_of_month, 15);
  starttime.set(calendar.hour_of_day, 3);
  starttime.set(calendar.minute, 0);
  starttime.set(calendar.month, newmonth-1);
  starttime.set(calendar.year, newyear);
  endtime = (calendar) starttime.clone();
  endtime.add(calendar.hour_of_day, 3);
  event = new weekviewevent(4, geteventtitle(starttime), starttime, endtime);
  event.setcolor(getresources().getcolor(r.color.event_color_04));
  events.add(event);

  starttime = calendar.getinstance();
  starttime.set(calendar.day_of_month, 1);
  starttime.set(calendar.hour_of_day, 3);
  starttime.set(calendar.minute, 0);
  starttime.set(calendar.month, newmonth-1);
  starttime.set(calendar.year, newyear);
  endtime = (calendar) starttime.clone();
  endtime.add(calendar.hour_of_day, 3);
  event = new weekviewevent(5, geteventtitle(starttime), starttime, endtime);
  event.setcolor(getresources().getcolor(r.color.event_color_01));
  events.add(event);

  starttime = calendar.getinstance();
  starttime.set(calendar.day_of_month, starttime.getactualmaximum(calendar.day_of_month));
  starttime.set(calendar.hour_of_day, 15);
  starttime.set(calendar.minute, 0);
  starttime.set(calendar.month, newmonth-1);
  starttime.set(calendar.year, newyear);
  endtime = (calendar) starttime.clone();
  endtime.add(calendar.hour_of_day, 3);
  event = new weekviewevent(5, geteventtitle(starttime), starttime, endtime);
  event.setcolor(getresources().getcolor(r.color.event_color_02));
  events.add(event);

  return events;
 }

}

apiclient文件夹下event.java和myjsonservice.java

package siso.weekv.apiclient;

import android.annotation.suppresslint;
import android.graphics.color;


import com.google.gson.annotations.expose;
import com.google.gson.annotations.serializedname;

import java.text.parseexception;
import java.text.simpledateformat;
import java.util.calendar;
import java.util.date;

import siso.wvlib.weekviewevent;


public class event {

 @expose @serializedname("name")
 private string mname;
 @expose @serializedname("dayofmonth")
 private int mdayofmonth;
 @expose @serializedname("starttime")
 private string mstarttime;
 @expose @serializedname("endtime")
 private string mendtime;
 @expose @serializedname("color")
 private string mcolor;

 public string getname() {
  return mname;
 }

 public void setname(string name) {
  this.mname = name;
 }

 public int getdayofmonth() {
  return mdayofmonth;
 }

 public void setdayofmonth(int dayofmonth) {
  this.mdayofmonth = dayofmonth;
 }

 public string getstarttime() {
  return mstarttime;
 }

 public void setstarttime(string starttime) {
  this.mstarttime = starttime;
 }

 public string getendtime() {
  return mendtime;
 }

 public void setendtime(string endtime) {
  this.mendtime = endtime;
 }

 public string getcolor() {
  return mcolor;
 }

 public void setcolor(string color) {
  this.mcolor = color;
 }

 @suppresslint("simpledateformat")
 public weekviewevent toweekviewevent(){

  // parse time.
  simpledateformat sdf = new simpledateformat("hh:mm");
  date start = new date();
  date end = new date();
  try {
   start = sdf.parse(getstarttime());
  } catch (parseexception e) {
   e.printstacktrace();
  }
  try {
   end = sdf.parse(getendtime());
  } catch (parseexception e) {
   e.printstacktrace();
  }

  // initialize start and end time.
  calendar now = calendar.getinstance();
  calendar starttime = (calendar) now.clone();
  starttime.settimeinmillis(start.gettime());
  starttime.set(calendar.year, now.get(calendar.year));
  starttime.set(calendar.month, now.get(calendar.month));
  starttime.set(calendar.day_of_month, getdayofmonth());
  calendar endtime = (calendar) starttime.clone();
  endtime.settimeinmillis(end.gettime());
  endtime.set(calendar.year, starttime.get(calendar.year));
  endtime.set(calendar.month, starttime.get(calendar.month));
  endtime.set(calendar.day_of_month, starttime.get(calendar.day_of_month));

  // create an week view event.
  weekviewevent weekviewevent = new weekviewevent();
  weekviewevent.setname(getname());
  weekviewevent.setstarttime(starttime);
  weekviewevent.setendtime(endtime);
  weekviewevent.setcolor(color.parsecolor(getcolor()));

  return weekviewevent;
 }
}

package siso.weekv.apiclient;

import java.util.list;

import retrofit.callback;
import retrofit.http.get;

/**
 * created by raquib-ul-alam kanak on 1/3/16.
 * website: http://alamkanak.github.io
 */
public interface myjsonservice {

 //https://api.myjson.com/bins/3nh0k
 @get("/3nh0k")
 void listevents(callback<list<event>> eventscallback);

}

app项目结构:

andriod类库项目结构:

项目运行结果如图:

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。