Android自定义DataTimePicker（日期选择器）

浅浅的花香味﹌ 2022-08-11 08:29 358阅读 0赞

**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：

![20140823153258843][]

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][http_download.csdn.net_detail_wwj_748_7806993]

[20140823153258843]: /images/20220810/3519e594c0374cfca03bbf3c393aed9a.png
[http_download.csdn.net_detail_wwj_748_7806993]: http://download.csdn.net/detail/wwj_748/7806993