Android中自定义设置日期

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//自定义设置日期工具类

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;
   }
//nishizenmeshidenshizuisidewohaokunnen
}

//在activity中调用

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);
           }
       });
   }
}

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