Android自定义DataTimePicker（日期选择器）

转载：http://blog.csdn.net/wwj_748/article/details/38778631

Android自定义DataTimePicker（日期选择器）

 笔者有一段时间没有发表关于Android的文章了，关于Android自定义组件笔者有好几篇想跟大家分享的，后期会记录在博客中。本篇博客给大家分享的是自定义一个日期选择器，可以让用户同时选择年月日和当前时间。

先看看效果：

实现的效果就是在同一个布局上显示日期选择和时间选择。

自定义一个类：

/DateTimePicker/src/com/wwj/datetimepicker/DateTimePickDialogUtil.java

 package com.wwj.datetimepicker;

 import java.text.SimpleDateFormat;
 import java.util.Calendar;

 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.widget.DatePicker;
 import android.widget.DatePicker.OnDateChangedListener;
 import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.TimePicker;
 import android.widget.TimePicker.OnTimeChangedListener;

 /**
  * 日期时间选择控件 使用方法： private EditText inputDate;//需要设置的日期时间文本编辑框 private String
  * initDateTime="2012年9月3日 14:44",//初始日期时间值 在点击事件中使用：
  * inputDate.setOnClickListener(new OnClickListener() {
  *
  * @Override public void onClick(View v) { DateTimePickDialogUtil
  *           dateTimePicKDialog=new
  *           DateTimePickDialogUtil(SinvestigateActivity.this,initDateTime);
  *           dateTimePicKDialog.dateTimePicKDialog(inputDate);
  *
  *           } });
  *
  * @author
  */
 public class DateTimePickDialogUtil implements OnDateChangedListener,
         OnTimeChangedListener {
     private DatePicker datePicker;
     private TimePicker timePicker;
     private AlertDialog ad;
     private String dateTime;
     private String initDateTime;
     private Activity activity;

     /**
      * 日期时间弹出选择框构造函数
      *
      * @param activity
      *            ：调用的父activity
      * @param initDateTime
      *            初始日期时间值，作为弹出窗口的标题和日期时间初始值
      */
     public DateTimePickDialogUtil(Activity activity, String initDateTime) {
         this.activity = activity;
         this.initDateTime = initDateTime;

     }

     public void init(DatePicker datePicker, TimePicker timePicker) {
         Calendar calendar = Calendar.getInstance();
         if (!(null == initDateTime || "".equals(initDateTime))) {
             calendar = this.getCalendarByInintData(initDateTime);
         } else {
             initDateTime = calendar.get(Calendar.YEAR) + "年"
                     + calendar.get(Calendar.MONTH) + "月"
                     + calendar.get(Calendar.DAY_OF_MONTH) + "日 "
                     + calendar.get(Calendar.HOUR_OF_DAY) + ":"
                     + calendar.get(Calendar.MINUTE);
         }

         datePicker.init(calendar.get(Calendar.YEAR),
                 calendar.get(Calendar.MONTH),
                 calendar.get(Calendar.DAY_OF_MONTH), this);
         timePicker.setCurrentHour(calendar.get(Calendar.HOUR_OF_DAY));
         timePicker.setCurrentMinute(calendar.get(Calendar.MINUTE));
     }

     /**
      * 弹出日期时间选择框方法
      *
      * @param inputDate
      *            :为需要设置的日期时间文本编辑框
      * @return
      */
     public AlertDialog dateTimePicKDialog(final EditText inputDate) {
         LinearLayout dateTimeLayout = (LinearLayout) activity
                 .getLayoutInflater().inflate(R.layout.common_datetime, null);
         datePicker = (DatePicker) dateTimeLayout.findViewById(R.id.datepicker);
         timePicker = (TimePicker) dateTimeLayout.findViewById(R.id.timepicker);
         init(datePicker, timePicker);
         timePicker.setIs24HourView(true);
         timePicker.setOnTimeChangedListener(this);

         ad = new AlertDialog.Builder(activity)
                 .setTitle(initDateTime)
                 .setView(dateTimeLayout)
                 .setPositiveButton("设置", new DialogInterface.OnClickListener() {
                     public void onClick(DialogInterface dialog, int whichButton) {
                         inputDate.setText(dateTime);
                     }
                 })
                 .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                     public void onClick(DialogInterface dialog, int whichButton) {
                         inputDate.setText("");
                     }
                 }).show();

         onDateChanged(null, 0, 0, 0);
         return ad;
     }

     public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
         onDateChanged(null, 0, 0, 0);
     }

     public void onDateChanged(DatePicker view, int year, int monthOfYear,
             int dayOfMonth) {
         // 获得日历实例
         Calendar calendar = Calendar.getInstance();

         calendar.set(datePicker.getYear(), datePicker.getMonth(),
                 datePicker.getDayOfMonth(), timePicker.getCurrentHour(),
                 timePicker.getCurrentMinute());
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 HH:mm");

         dateTime = sdf.format(calendar.getTime());
         ad.setTitle(dateTime);
     }

     /**
      * 实现将初始日期时间2012年07月02日 16:45 拆分成年 月 日 时 分 秒,并赋值给calendar
      *
      * @param initDateTime
      *            初始日期时间值 字符串型
      * @return Calendar
      */
     private Calendar getCalendarByInintData(String initDateTime) {
         Calendar calendar = Calendar.getInstance();

         // 将初始日期时间2012年07月02日 16:45 拆分成年 月 日 时 分 秒
         String date = spliteString(initDateTime, "日", "index", "front"); // 日期
         String time = spliteString(initDateTime, "日", "index", "back"); // 时间

         String yearStr = spliteString(date, "年", "index", "front"); // 年份
         String monthAndDay = spliteString(date, "年", "index", "back"); // 月日

         String monthStr = spliteString(monthAndDay, "月", "index", "front"); // 月
         String dayStr = spliteString(monthAndDay, "月", "index", "back"); // 日

         String hourStr = spliteString(time, ":", "index", "front"); // 时
         String minuteStr = spliteString(time, ":", "index", "back"); // 分

         int currentYear = Integer.valueOf(yearStr.trim()).intValue();
         int currentMonth = Integer.valueOf(monthStr.trim()).intValue() - 1;
         int currentDay = Integer.valueOf(dayStr.trim()).intValue();
         int currentHour = Integer.valueOf(hourStr.trim()).intValue();
         int currentMinute = Integer.valueOf(minuteStr.trim()).intValue();

         calendar.set(currentYear, currentMonth, currentDay, currentHour,
                 currentMinute);
         return calendar;
     }

     /**
      * 截取子串
      *
      * @param srcStr
      *            源串
      * @param pattern
      *            匹配模式
      * @param indexOrLast
      * @param frontOrBack
      * @return
      */
     public static String spliteString(String srcStr, String pattern,
             String indexOrLast, String frontOrBack) {
         String result = "";
         int loc = -1;
         if (indexOrLast.equalsIgnoreCase("index")) {
             loc = srcStr.indexOf(pattern); // 取得字符串第一次出现的位置
         } else {
             loc = srcStr.lastIndexOf(pattern); // 最后一个匹配串的位置
         }
         if (frontOrBack.equalsIgnoreCase("front")) {
             if (loc != -1)
                 result = srcStr.substring(0, loc); // 截取子串
         } else {
             if (loc != -1)
                 result = srcStr.substring(loc + 1, srcStr.length()); // 截取子串
         }
         return result;
     }

 }

/DateTimePicker/src/com/wwj/datetimepicker/DateTimePickerActivity.java

 package com.wwj.datetimepicker;

 import android.app.Activity;
 import android.os.Bundle;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.EditText;

 /**
  * 时间拾取器界面
  *
  * @author wwj_748
  *
  */
 public class DateTimePickerActivity extends Activity {
     /** Called when the activity is first created. */
     private EditText startDateTime;
     private EditText endDateTime;

     private String initStartDateTime = "2013年9月3日 14:44"; // 初始化开始时间
     private String initEndDateTime = "2014年8月23日 17:44"; // 初始化结束时间

     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);

         // 两个输入框
         startDateTime = (EditText) findViewById(R.id.inputDate);
         endDateTime = (EditText) findViewById(R.id.inputDate2);

         startDateTime.setText(initStartDateTime);
         endDateTime.setText(initEndDateTime);

         startDateTime.setOnClickListener(new OnClickListener() {
             public void onClick(View v) {

                 DateTimePickDialogUtil dateTimePicKDialog = new DateTimePickDialogUtil(
                         DateTimePickerActivity.this, initEndDateTime);
                 dateTimePicKDialog.dateTimePicKDialog(startDateTime);

             }
         });

         endDateTime.setOnClickListener(new OnClickListener() {

             public void onClick(View v) {
                 DateTimePickDialogUtil dateTimePicKDialog = new DateTimePickDialogUtil(
                         DateTimePickerActivity.this, initEndDateTime);
                 dateTimePicKDialog.dateTimePicKDialog(endDateTime);
             }
         });
     }
 }

自定义界面：

/DateTimePicker/res/layout/common_datetime.xml

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     android:orientation="vertical" >

     <DatePicker
         android:id="@+id/datepicker"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:calendarViewShown="false" />

     <TimePicker
         android:id="@+id/timepicker"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />

 </LinearLayout>

源码下载：http://download.csdn.net/detail/wwj_748/7806993

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