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
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