DatePicker的使用

activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >
 <DatePicker
     android:id="@+id/firstDatePicker"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"/>
 <Button
     android:id="@+id/button"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_below="@id/firstDatePicker"
     android:text="获取当前DatePicker的值"/>

</RelativeLayout>

MainActivity.java:

package com.mcm.datepicker;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;

public class MainActivity extends Activity {
 private DatePicker datePicker;
 private Button button;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  datePicker = (DatePicker) findViewById(R.id.firstDatePicker);
  button = (Button) findViewById(R.id.button);
  ButtonListener buttonListener = new ButtonListener();
  button.setOnClickListener(buttonListener);
  //datePicker.updateDate(2013, 1, 1);设置datePicker默认时间为2013年2月1日
  //不设置的话默认是当前时间
 }

class ButtonListener implements OnClickListener{

@Override
  public void onClick(View v) {
   int y = datePicker.getYear();
   int m = datePicker.getMonth()+1;
   int d = datePicker.getDayOfMonth();
   System.out.println("当前时间:" + y +"年," + m + "月,"+ d + "日");
   
  }
  
 }
 
 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  // Inflate the menu; this adds items to the action bar if it is present.
  getMenuInflater().inflate(R.menu.main, menu);
  return true;
 }

}