Android自定义控件之日期选择控件使用详解

概述Android日期选择控件效果如下:调用的代码:@OnClick(R.id.btn0)publicvoidbtn0(){finalAlertDialogdialog=newAlertDialog.Builder(context).create();

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,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 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,getSelectDate());  }  } }); wheelVIEwDay.addChangingListener(new OnWheelChangedListener() {  @OverrIDe  public voID onChanged(WheelVIEw wheel,int newValue) {  day = 1 + newValue;  if (onSelectedChangedListener != null) {   onSelectedChangedListener.OnSelectedChanged(parseInt2Array(year,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 day) { return new int[]{year,day}; } private int[] getSelectDate() { return new int[]{year,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(); } }}

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