一，mainActivity.class
获取当前系统时间，按固定格式输出
SimpleDateFormat formatter = new SimpleDateFormat ("yyyy年MM月dd日 HH:mm");
Date curDate = new Date(System.currentTimeMillis());
String initEndDateTime = formatter.format(curDate); // 初始化点击开始时间
在把选择的日期和时间的值输入到一个edittext
DateTimePickDialogUtil1 dateTimePicKDialog = new DateTimePickDialogUtil1(
add_task.this, initEndDateTime);
dateTimePicKDialog.dateTimePicKDialog(et2);
二，DateTimePickDialogUtil1.class
package com.example.yx.pumkin;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.view.WindowManager;
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;
/**
* Created by hp on /2/6.
*/
public class DateTimePickDialogUtil1 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 DateTimePickDialogUtil1(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
*/
//为文本框设置选择日期时间
public AlertDialog dateTimePicKDialog(final EditText inputDate) {
LinearLayout dateTimeLayout = (LinearLayout) activity
.getLayoutInflater().inflate(R.layout.pumkin_calendar, 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;
}
}
