Android自定义控件之日期选择控件使用详解

android日期选择控件效果如下:

调用的代码:

@onclick(r.id.btn0)
 public void btn0() {
 final alertdialog dialog = new alertdialog.builder(context).create();
 dialog.show();
 window window = dialog.getwindow();
 window.setcontentview(r.layout.dialog_change_date);
 window.setbackgrounddrawable(new colordrawable(0x00000000)); // 处理5.0以上对话框的白边问题
 window.setgravity(gravity.bottom);
 final datepickerview datepickerview = (datepickerview) window.findviewbyid(r.id.datepickerview);

 //打开页面时需要选中的日期 todo
 datepickerview.setdate(2015, 5, 11);
 // datepickerview.setdate(birthdayarray[0], birthdayarray[1], birthdayarray[2]);

 final int[] birthdayarray = new int[3];
 datepickerview.addonselectedchanginglistener(new datepickerview.onselectedchangedlistener() {
  @override
  public void onselectedchanged(int[] oldvalue, int[] newvalue) {
  birthdayarray[0] = newvalue[0];
  birthdayarray[1] = newvalue[1];
  birthdayarray[2] = newvalue[2];
  }
 });
 window.findviewbyid(r.id.tvcancel).setonclicklistener(new view.onclicklistener() {
  @override
  public void onclick(view view) {
  dialog.dismiss();
  }
 });
 window.findviewbyid(r.id.tvok).setonclicklistener(new view.onclicklistener() {
  @override
  public void onclick(view view) {
  dialog.dismiss();

  btn0.settext(birthdayarray[0] + "年" + birthdayarray[1] + "月" + birthdayarray[2] + "日");
  }
 });

 }

1.wheelview 源码(有修改)

2.xml布局文件

<?xml version="1.0" encoding="utf-8"?>
<!--widget_date_picker.xml-->
<!--注意修改页面自定义控件的包名-->
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

 <de.bvb.rxdemo.widget.dateselectwidget.wheelview.wheelview
  android:id="@+id/wheelviewyear"
  android:layout_width="0dp"
  android:layout_height="match_parent"
  android:layout_gravity="center"
  android:layout_weight="1"/>

 <de.bvb.rxdemo.widget.dateselectwidget.wheelview.wheelview
  android:id="@+id/wheelviewmonth"
  android:layout_width="0dp"
  android:layout_height="match_parent"
  android:layout_gravity="center"
  android:layout_weight="1"/>

 <de.bvb.rxdemo.widget.dateselectwidget.wheelview.wheelview
  android:id="@+id/wheelviewday"
  android:layout_width="0dp"
  android:layout_height="match_parent"
  android:layout_gravity="center"
  android:layout_weight="1"/>

</linearlayout>

<?xml version="1.0" encoding="utf-8"?>
<!--dialog_change_date.xml-->
<!--注意修改页面自定义控件的包名-->
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/transparent"
    android:gravity="bottom"
    android:orientation="vertical">

 <linearlayout
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:background="@android:color/white"
  android:orientation="vertical">

  <linearlayout
   android:layout_width="match_parent"
   android:layout_height="48dp"
   android:orientation="horizontal">

   <textview
    android:id="@+id/tvcancel"
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:layout_weight="1"
    android:background="#f9f9f9"
    android:gravity="center"
    android:text="取消"
    android:textcolor="#43aafc"/>

   <view
    android:layout_width="1px"
    android:layout_height="match_parent"
    android:background="#d7d7d7"/>

   <textview
    android:id="@+id/tvok"
    android:layout_width="0dp"
    android:layout_height="match_parent"
    android:layout_weight="1"
    android:background="#f9f9f9"
    android:gravity="center"
    android:text="确定"
    android:textcolor="#43aafc"/>

  </linearlayout>

  <view
   android:layout_width="match_parent"
   android:layout_height="1px"
   android:background="#d7d7d7"/>

  <de.bvb.rxdemo.widget.dateselectwidget.datepickerview
   android:id="@+id/datepickerview"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"/>

 </linearlayout>
</linearlayout>

3.java文件

package de.bvb.rxdemo.widget.dateselectwidget;

import android.content.context;
import android.util.attributeset;
import android.view.layoutinflater;
import android.view.view;
import android.widget.linearlayout;
import android.widget.textview;

import java.util.arraylist;

import de.bvb.rxdemo.r;
import de.bvb.rxdemo.widget.dateselectwidget.wheelview.onwheelchangedlistener;
import de.bvb.rxdemo.widget.dateselectwidget.wheelview.onwheelscrolllistener;
import de.bvb.rxdemo.widget.dateselectwidget.wheelview.wheelview;
import de.bvb.rxdemo.widget.dateselectwidget.wheelview.adapter.abstractwheeltextadapter1;


public class datepickerview extends linearlayout {


 private static final int year_min = 1950;
 private static final int year_max = 2020;

 private int year = year_min;
 private int month = 1;
 private int day = 1;


 private arraylist<integer> yearlist = new arraylist<>(year_max - year_min + 1);
 private arraylist<integer> monthlist = new arraylist<>(12);
 private arraylist<integer> daylist = new arraylist<>(31);

 private datetextadapter yearadapter;
 private datetextadapter monthadapter;
 private datetextadapter dayadapter;

 private context context;
 private wheelview wheelviewyear;
 private wheelview wheelviewmonth;
 private wheelview wheelviewday;

 public datepickerview(context context) {
 this(context, null);
 }

 public datepickerview(context context, attributeset attrs) {
 this(context, attrs, 0);
 }

 public datepickerview(context context, attributeset attrs, int defstyleattr) {
 super(context, attrs, defstyleattr);
 this.context = context;
 init();
 }

 private void init() {
 for (int i = year_min; i < year_max + 1; i++) {
  yearlist.add(i);
 }
 for (int i = 1; i < 13; i++) {
  monthlist.add(i);
 }
 for (int i = 1; i < 32; i++) {
  daylist.add(i);
 }

 layoutinflater.from(context).inflate(r.layout.widget_date_picker, this);
 // view.inflate(context, r.layout.widget_date_picker, this);

 wheelviewyear = (wheelview) findviewbyid(r.id.wheelviewyear);
 wheelviewmonth = (wheelview) findviewbyid(r.id.wheelviewmonth);
 wheelviewday = (wheelview) findviewbyid(r.id.wheelviewday);

 wheelviewyear.setcyclic(true);// 可循环滚动
 wheelviewmonth.setcyclic(true);// 可循环滚动
 wheelviewday.setcyclic(true);// 可循环滚动

 yearadapter = new datetextadapter(context);
 monthadapter = new datetextadapter(context);
 dayadapter = new datetextadapter(context);

 yearadapter.setlist(yearlist);
 monthadapter.setlist(monthlist);
 dayadapter.setlist(daylist);

 wheelviewyear.setviewadapter(yearadapter);
 wheelviewmonth.setviewadapter(monthadapter);
 wheelviewday.setviewadapter(dayadapter);

 wheelviewyear.addchanginglistener(new onwheelchangedlistener() {
  @override
  public void onchanged(wheelview wheel, int oldvalue, int newvalue) {
  year = year_min + newvalue;
  int days = calcday(year, month); // days=28
  daylist = getdaylist(days);
  dayadapter.setlist(daylist);
  if (day > days) {
   dayadapter.currentindex = days - 1;
   wheelviewday.setcurrentitem(dayadapter.currentindex);
  } else {
   dayadapter.currentindex = day - 1; // day = 30
  }

  if (onselectedchangedlistener != null) {
   onselectedchangedlistener.onselectedchanged(parseint2array(year_min + oldvalue, month, day), getselectdate());
  }
  }
 });

 wheelviewmonth.addchanginglistener(new onwheelchangedlistener() {
  @override
  public void onchanged(wheelview wheel, int oldvalue, int newvalue) {
  month = 1 + newvalue;
  int days = calcday(year, month); // days=28
  daylist = getdaylist(days);
  dayadapter.setlist(daylist);
  if (day > days) {
   dayadapter.currentindex = days - 1;
   wheelviewday.setcurrentitem(dayadapter.currentindex);
  } else {
   dayadapter.currentindex = day - 1; // day = 30
  }

  if (onselectedchangedlistener != null) {
   onselectedchangedlistener.onselectedchanged(parseint2array(year, 1 + oldvalue, day), getselectdate());
  }
  }
 });

 wheelviewday.addchanginglistener(new onwheelchangedlistener() {
  @override
  public void onchanged(wheelview wheel, int oldvalue, int newvalue) {
  day = 1 + newvalue;
  if (onselectedchangedlistener != null) {
   onselectedchangedlistener.onselectedchanged(parseint2array(year, month, oldvalue + 1), getselectdate());
  }
  }
 });

 wheelviewyear.addscrollinglistener(onwheelscrolllistener);
 wheelviewmonth.addscrollinglistener(onwheelscrolllistener);
 wheelviewday.addscrollinglistener(onwheelscrolllistener);
 }

 onwheelscrolllistener onwheelscrolllistener = new onwheelscrolllistener() {
 @override
 public void onscrollingstarted(wheelview wheel) {

 }

 @override
 public void onscrollingfinished(wheelview wheel) {
  settextviewstyle();
 }
 };

 private void settextviewstyle() {
 settextviewsize(year + "", yearadapter);
 settextviewsize(month + "", monthadapter);
 settextviewsize(day + "", dayadapter);
 }

 private void settextviewsize(string currentitemtext, abstractwheeltextadapter1 adapter) {
 arraylist<view> arraylist = adapter.gettextviews();
 int size = arraylist.size();
 string currenttext;
 textview textview;
 boolean current;
 for (int i = 0; i < size; i++) {
  textview = (textview) arraylist.get(i);
  currenttext = textview.gettext().tostring();
  current = currentitemtext.equals(currenttext);
  textview.settextcolor(current ? adapter.selected_text_color : adapter.un_selected_text_color);
  textview.settextsize(current ? adapter.selected_text_size : adapter.un_selected_text_size);
 }
 }

 /**
 * 设置控件的初始值
 *
 * @param year
 * @param month
 * @param day
 */
 public void setdate(int year, int month, int day) {
 //验证合法性
 if (year > year_max || year < year_min) {
  year = year_min;
//  throw new runtimeexception("年份必须在[" + year_min + "," + year_max + "]之间");
 }
 if (month > 12 || month < 1) {
  month = 1;
//  throw new runtimeexception("月份份必须在[" + 1 + "," + 12 + "]之间");
 }
 final int days = calcday(year, month);
 if (day > days || day < 1) {
  day = 1;
//  throw new runtimeexception("日期份必须在[" + 1 + "," + days + "]之间");
 }

 this.year = year;
 this.month = month;
 this.day = day;

 yearadapter.currentindex = datepickerview.this.year - year_min;
 monthadapter.currentindex = datepickerview.this.month - 1;
 dayadapter.currentindex = datepickerview.this.day - 1;

 wheelviewyear.setcurrentitem(yearadapter.currentindex);
 wheelviewmonth.setcurrentitem(monthadapter.currentindex);
 wheelviewday.setcurrentitem(dayadapter.currentindex);
 }

 public void addonselectedchanginglistener(onselectedchangedlistener onselectedchangedlistener) {
 this.onselectedchangedlistener = onselectedchangedlistener;
 }

 private onselectedchangedlistener onselectedchangedlistener;

 public interface onselectedchangedlistener {
 void onselectedchanged(int[] oldvalue, int[] newvalue);
 }

 private int[] parseint2array(int year, int month, int day) {
 return new int[]{year, month, day};
 }

 private int[] getselectdate() {
 return new int[]{year, month, day};
 }

 private arraylist<integer> getdaylist(int days) {
 if (days <= 0) {
  return null;
 }
 arraylist<integer> list = new arraylist(days);
 for (int i = 1; i < days + 1; i++) {
  list.add(i);
 }
 return list;
 }

 private int calcday(int year, int month) {
 int days = 0;
 switch (month) {
  case 1:
  case 3:
  case 5:
  case 7:
  case 8:
  case 10:
  case 12:
  days = 31;
  break;
  case 4:
  case 6:
  case 9:
  case 11:
  days = 30;
  break;
  case 2:
  days = (year % 400 == 0 || (year % 100 != 0 && year % 4 == 0)) ? 29 : 28;
  break;
 }
 return days;
 }

 private class datetextadapter extends abstractwheeltextadapter1 {
 arraylist<integer> list;

 public datetextadapter(context context) {
  super(context, android.r.layout.simple_list_item_1);
//  super(context, r.layout.item_birth_year);
//  setitemtextresource(r.id.tempvalue);

//  item_birth_year.xml 内容如下
//  <?xml version="1.0" encoding="utf-8"?>
//  <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
//  android:layout_width="match_parent"
//  android:layout_height="35dip"
//  android:gravity="center"
//  android:orientation="horizontal">
//  <textview
//   android:id="@+id/tempvalue"
//   android:layout_width="match_parent"
//   android:layout_height="match_parent"
//   android:gravity="center"
//   android:textcolor="#ffff0000"/>
//  </linearlayout>
 }

 public void setlist(arraylist<integer> list) {
  this.list = list;
  notifydatachangedevent();
 }

 @override
 protected charsequence getitemtext(int index) {
  return list == null ? "" : string.valueof(list.get(index));
 }

 @override
 public int getitemscount() {
  return list == null ? 0 : list.size();
 }
 }
}

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。