DatePicker 日期選擇對話框的實作

package dateandtimer;

import java.util.Calendar;

import java.util.Date;

import java.util.Locale;

import com.example.ctroltest.R;

import android.os.Bundle;

import android.app.Activity;

import android.app.DatePickerDialog;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.DatePicker;

import android.widget.TextView;

public class DatePickerTest extends Activity {

 private TextView datedisp;

 private Button dateselectbtn;

 private int myear,mmonth,mday;

private DatePickerDialog.OnDateSetListener dateListener=new DatePickerDialog.OnDateSetListener() {

  @Override

  public void onDateSet(DatePicker view, int year, int monthOfYear,

    int dayOfMonth) {

   // TODO Auto-generated method stub

   datedisp.setText("你選擇了"+year+"年"+(monthOfYear+1) +"月"+dayOfMonth+"日");

  }

 };

 @Override

 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  setContentView(R.layout.date_picker_test);

  datedisp=(TextView)findViewById(R.id.datedisp);

  dateselectbtn=(Button)findViewById(R.id.dateselectbtn);

  Calendar myCalendar=Calendar.getInstance(Locale.CHINA);

  Date mydate=new Date();

  myCalendar.setTime(mydate);

  myear=myCalendar.get(Calendar.YEAR);

  mmonth=myCalendar.get(Calendar.MONTH);

  mday=myCalendar.get(Calendar.DAY_OF_MONTH);  

  dateselectbtn.setOnClickListener(new OnClickListener() {

   @Override

   public void onClick(View v) {

    // TODO Auto-generated method stub

    DatePickerDialog datePickerDialog=

      new DatePickerDialog(DatePickerTest.this,dateListener, myear,mmonth, mday); 

    datePickerDialog.show();

   }

  });

 }

 @Override

 public boolean onCreateOptionsMenu(Menu menu) {

  // Inflate the menu; this adds items to the action bar if it is present.

  getMenuInflater().inflate(R.menu.date_picker_test, menu);

  return true;

 }

}

布局檔案：

<LinearLayout 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:orientation="vertical" >

<LinearLayout

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="horizontal" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="日期為:" />

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/datedisp"

        />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="選擇日期"

        android:id="@+id/dateselectbtn"

        />

    </LinearLayout>

</LinearLayout>

最後的效果：