Android中日期和時間控件的使用

openkk 13年前發布 | 111K 次閱讀 Android Android開發移動開發

本文主要講述Android中的日期控件和時間控件的使用，以一個Demo的例子來展示日期和時間控件的使用，先看下如下效果圖：

Android中日期和時間控件的使用

從效果圖中可以看到該Demo是通過單擊【選擇日期】按鈕和【選擇時間】按鈕彈出日期或者時間的對話框，然后設置日期或者時間，設置完成后會在文本框中顯示設置的日期或時間值。

【1】Demo程序框架圖：

Android中日期和時間控件的使用

【2】布局文件 res/layout/main.xml 源碼：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="

<LinearLayout android:orientation="horizontal"  
   android:layout_width="fill_parent" android:layout_height="wrap_content">  

   <EditText android:id="@+id/showdate" android:layout_width="fill_parent"  
       android:layout_height="wrap_content" android:layout_weight="1"/>  
   <Button android:id="@+id/pickdate" android:layout_width="wrap_content"  
       android:layout_height="wrap_content" android:text="選擇日期"/>  

</LinearLayout> 

<LinearLayout android:orientation="horizontal"  
   android:layout_width="fill_parent" android:layout_height="wrap_content">  

   <EditText android:id="@+id/showtime" android:layout_width="fill_parent"  
       android:layout_height="wrap_content" android:layout_weight="1"/>  
   <Button android:id="@+id/picktime" android:layout_width="wrap_content"  
       android:layout_height="wrap_content" android:text="選擇時間"/>  

</LinearLayout> 

</LinearLayout></pre>【3】包com.andyidea.calenderdemo下MainActivity.java源碼：package com.andyidea.calenderdemo;
import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.TimePicker;
public class MainActivity extends Activity {

private EditText showDate = null;
private Button pickDate = null;
private EditText showTime = null;
private Button pickTime = null;

private static final int SHOW_DATAPICK = 0; 
private static final int DATE_DIALOG_ID = 1;  
private static final int SHOW_TIMEPICK = 2;
private static final int TIME_DIALOG_ID = 3;

private int mYear;  
private int mMonth;
private int mDay; 
private int mHour;
private int mMinute;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    initializeViews();

    final Calendar c = Calendar.getInstance();
    mYear = c.get(Calendar.YEAR);  
    mMonth = c.get(Calendar.MONTH);  
    mDay = c.get(Calendar.DAY_OF_MONTH);

    mHour = c.get(Calendar.HOUR_OF_DAY);
    mMinute = c.get(Calendar.MINUTE);

    setDateTime(); 
    setTimeOfDay();
}

/**
 * 初始化控件和UI視圖
 */
private void initializeViews(){
    showDate = (EditText) findViewById(R.id.showdate);  
    pickDate = (Button) findViewById(R.id.pickdate); 
    showTime = (EditText)findViewById(R.id.showtime);
    pickTime = (Button)findViewById(R.id.picktime);

    pickDate.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
           Message msg = new Message(); 
           if (pickDate.equals((Button) v)) {  
              msg.what = MainActivity.SHOW_DATAPICK;  
           }  
           MainActivity.this.dateandtimeHandler.sendMessage(msg); 
        }
    });

    pickTime.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
           Message msg = new Message(); 
           if (pickTime.equals((Button) v)) {  
              msg.what = MainActivity.SHOW_TIMEPICK;  
           }  
           MainActivity.this.dateandtimeHandler.sendMessage(msg); 
        }
    });
}

/**
 * 設置日期
 */
private void setDateTime(){
   final Calendar c = Calendar.getInstance();  

   mYear = c.get(Calendar.YEAR);  
   mMonth = c.get(Calendar.MONTH);  
   mDay = c.get(Calendar.DAY_OF_MONTH); 

   updateDateDisplay(); 
}

/**
 * 更新日期顯示
 */
private void updateDateDisplay(){
   showDate.setText(new StringBuilder().append(mYear).append("-")
           .append((mMonth + 1) < 10 ? "0" + (mMonth + 1) : (mMonth + 1)).append("-")
           .append((mDay < 10) ? "0" + mDay : mDay)); 
}

/** 
 * 日期控件的事件 
 */  
private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() {  

   public void onDateSet(DatePicker view, int year, int monthOfYear,  
          int dayOfMonth) {  
       mYear = year;  
       mMonth = monthOfYear;  
       mDay = dayOfMonth;  

       updateDateDisplay();
   }  
}; 

/**
 * 設置時間
 */
private void setTimeOfDay(){
   final Calendar c = Calendar.getInstance(); 
   mHour = c.get(Calendar.HOUR_OF_DAY);
   mMinute = c.get(Calendar.MINUTE);
   updateTimeDisplay();
}

/**
 * 更新時間顯示
 */
private void updateTimeDisplay(){
   showTime.setText(new StringBuilder().append(mHour).append(":")
           .append((mMinute < 10) ? "0" + mMinute : mMinute)); 
}

/**
 * 時間控件事件
 */
private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {

    @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
        mHour = hourOfDay;
        mMinute = minute;

        updateTimeDisplay();
    }
};

@Override  
protected Dialog onCreateDialog(int id) {  
   switch (id) {  
   case DATE_DIALOG_ID:  
       return new DatePickerDialog(this, mDateSetListener, mYear, mMonth,  
              mDay);
   case TIME_DIALOG_ID:
       return new TimePickerDialog(this, mTimeSetListener, mHour, mMinute, true);
   }

   return null;  
}  

@Override  
protected void onPrepareDialog(int id, Dialog dialog) {  
   switch (id) {  
   case DATE_DIALOG_ID:  
       ((DatePickerDialog) dialog).updateDate(mYear, mMonth, mDay);  
       break;
   case TIME_DIALOG_ID:
       ((TimePickerDialog) dialog).updateTime(mHour, mMinute);
       break;
   }
}  

/** 
 * 處理日期和時間控件的Handler 
 */  
Handler dateandtimeHandler = new Handler() {

   @Override  
   public void handleMessage(Message msg) {  
       switch (msg.what) {  
       case MainActivity.SHOW_DATAPICK:  
           showDialog(DATE_DIALOG_ID);  
           break; 
       case MainActivity.SHOW_TIMEPICK:
           showDialog(TIME_DIALOG_ID);
           break;
       }  
   }  

}; 


}</pre> 

【4】程序運行效果圖：
      



轉自：http://blog.csdn.net/cjjky/article/details/7292445