Android自定义DataTimePicker实例代码（日期选择器）

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;   }  } 

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);       }     });   } } 

<?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>