DatePicker的使用(一)

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结合DatePickerDialog和TimePickerDialog

package com.example.androidtest;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.app.DatePickerDialog;import android.app.TimePickerDialog;import android.view.View;import android.widget.Button;import android.widget.DatePicker;import android.widget.TimePicker;import android.widget.TextView;import android.util.Log;import java.text.DateFormat;import java.util.Calendar;public class MainActivity extends Activity {DateFormat fmtDateAndTime = DateFormat.getDateTimeInstance();TextView dateAndTimeLable;Calendar dateAndTime = Calendar.getInstance();DatePickerDialog.OnDateSetListener d = new DatePickerDialog.OnDateSetListener() {@Overridepublic void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth) {// TODO Auto-generated method stubdateAndTime.set(Calendar.YEAR, year);dateAndTime.set(Calendar.MONTH, monthOfYear);dateAndTime.set(Calendar.DAY_OF_MONTH, dayOfMonth);updateLable();}};TimePickerDialog.OnTimeSetListener t = new TimePickerDialog.OnTimeSetListener() {@Overridepublic void onTimeSet(TimePicker view, int hourOfDay, int minute) {// TODO Auto-generated method stubdateAndTime.set(Calendar.HOUR_OF_DAY, hourOfDay);dateAndTime.set(Calendar.MINUTE, minute);updateLable();}};public void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);Button btn = (Button)findViewById(R.id.dateBtn);btn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubnew DatePickerDialog(MainActivity.this,d,dateAndTime.get(Calendar.YEAR),dateAndTime.get(Calendar.MONTH),dateAndTime.get(Calendar.DAY_OF_MONTH)).show();}});btn = (Button)findViewById(R.id.timeBtn);btn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubnew TimePickerDialog(MainActivity.this,t,dateAndTime.get(Calendar.HOUR_OF_DAY),dateAndTime.get(Calendar.MINUTE),true).show();}});dateAndTimeLable = (TextView)findViewById(R.id.dateAndTime);updateLable();}private void updateLable(){dateAndTimeLable.setText(fmtDateAndTime.format(dateAndTime.getTime()));}}

<?xml version="1.0" encoding="utf-8"?><LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:orientation="vertical"  android:layout_width="fill_parent"  android:layout_height="fill_parent"  >  <TextView android:id="@+id/dateAndTime"      android:layout_width="fill_parent"     android:layout_height="wrap_content"    />  <Button android:id="@+id/dateBtn"      android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="Set the Date"    />  <Button android:id="@+id/timeBtn"      android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="Set the Time"    /></LinearLayout>

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