Android自己定義DataTimePicker（日期選擇器）

?筆者有一段時間沒有發表關于Android的文章了，關于Android自己定義組件筆者有好幾篇想跟大家分享的，后期會記錄在博客中。本篇博客給大家分享的是自己定義一個日期選擇器，能夠讓用戶同一時候選擇年月日和當前時間。
先看看效果：

實現的效果就是在同一個布局上顯示日期選擇和時間選擇。

自己定義一個類：/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;/*** 日期時間選擇控件 用法： private EditText inputDate;//須要設置的日期時間文本編輯框 private String* initDateTime="2012年9月3日 14:44",//初始日期時間值 在點擊事件中使用：* 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;/*** 日期時間彈出選擇框構造函數* * @param activity* ：調用的父activity* @param initDateTime* 初始日期時間值，作為彈出窗體的標題和日期時間初始值*/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));}/*** 彈出日期時間選擇框方法* * @param inputDate* :為須要設置的日期時間文本編輯框* @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("設置", 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) {// 獲得日歷實例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);}/*** 實現將初始日期時間2012年07月02日 16:45 拆分成年 月 日 時 分 秒,并賦值給calendar* * @param initDateTime* 初始日期時間值 字符串型* @return Calendar*/private Calendar getCalendarByInintData(String initDateTime) {Calendar calendar = Calendar.getInstance();// 將初始日期時間2012年07月02日 16:45 拆分成年 月 日 時 分 秒String date = spliteString(initDateTime, "日", "index", "front"); // 日期String time = spliteString(initDateTime, "日", "index", "back"); // 時間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"); // 時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現的位置} else {loc = srcStr.lastIndexOf(pattern); // 最后一個匹配串的位置}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;/*** 時間拾取器界面* * @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"; // 初始化開始時間private String initEndDateTime = "2014年8月23日 17:44"; // 初始化結束時間@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);// 兩個輸入框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);}});} }
自己定義界面：/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" ><DatePickerandroid:id="@+id/datepicker"android:layout_width="wrap_content"android:layout_height="wrap_content"android:calendarViewShown="false" /><TimePickerandroid:id="@+id/timepicker"android:layout_width="wrap_content"android:layout_height="wrap_content" /></LinearLayout>

源代碼下載：http://download.csdn.net/detail/wwj_748/7806993

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