DatePicker 日期选择控件 DatePickerDialog 日期选择对话框

1、main.xml的代码：

     < ?xml version="1.0" encoding="utf-8"?>
<LINEARLAYOUT android:layout_height="fill_parent" android:layout_width="fill_parent" android:orientation="vertical" xmlns:android="http://schemas.android.com/apk/res/android">
    <TEXTVIEW android:layout_height="wrap_content" android:layout_width="fill_parent" android:id="@+id/dateDisplay" android:textSize="20sp">
     </TEXTVIEW>
    <BUTTON android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="改变日期" android:id="@+id/pickDate" android:textSize="20sp">
    </BUTTON>
</LINEARLAYOUT>

 

2、java代码：

      package android.basic.lesson10;

import java.util.Calendar;

import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.DatePickerDialog.OnDateSetListener;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TextView;

public class MainHelloDatePicker extends Activity {

 //准备公用属性
    private TextView dateDisplay;
    private Button pickDate;
    private int mYear;
    private int mMonth;
    private int mDay;

    //准备对话框Id
    static final int DATE_DIALOG_ID = 0;

    //准备日期设置监听器
    private OnDateSetListener dsl = new DatePickerDialog.OnDateSetListener(){

  @Override
  public void onDateSet(DatePicker view, int year, int monthOfYear,
    int dayOfMonth) {
   mYear =year;
   mMonth= monthOfYear;
   mDay= dayOfMonth;
   dateDisplay.setText(mYear+"-"+(mMonth+1)+"-"+mDay);
  }
    };

    //重写创建对话框方法
    @Override
 protected Dialog onCreateDialog(int id){
     switch(id){
     case DATE_DIALOG_ID:
      //把Activity上下文、日期设置监听器、以及日期的年月日都作为参数传给那个新成立的对话框组件
      return new DatePickerDialog(this, dsl, mYear, mMonth, mDay);
     }
     return null;
    }

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

        //得到当前日期
        final Calendar c = Calendar.getInstance();
        mYear = c.get(Calendar.YEAR);
        mMonth = c.get(Calendar.MONTH);
        mDay = c.get(Calendar.DAY_OF_MONTH);

        //获取xml中的组件
        dateDisplay= (TextView)findViewById(R.id.dateDisplay);
        pickDate = (Button)findViewById(R.id.pickDate);

        //给日期显示组件一个初始值
        dateDisplay.setText(mYear+"-"+(mMonth+1)+"-"+mDay);

        //给按钮绑定点击监听器
        pickDate.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                showDialog(DATE_DIALOG_ID);
            }
        });
    }
}

3、运行程序见图片

源文件来自：http://android.yaohuiji.com/archives/390