（1）布局文件
<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" > <Button android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_marginTop="156dp" android:text="时间对话框" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/button2" android:layout_below="@+id/button2" android:layout_marginTop="14dp" android:text="日期对话框" /> <EditText android:id="@+id/editText1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_marginTop="41dp" android:ems="10" > <requestFocus /> </EditText></RelativeLayout>
（2）类文件
package com.example.date_time_dailog;import java.util.Calendar;import android.app.Activity;import android.app.DatePickerDialog;import android.app.DatePickerDialog.OnDateSetListener;import android.app.TimePickerDialog;import android.app.TimePickerDialog.OnTimeSetListener;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.DatePicker;import android.widget.EditText;import android.widget.TimePicker;import android.widget.Toast;public class MainActivity extends Activity { private Button button1; private Button button2; private EditText editText; private DatePickerDialog datePickerDialog; // 日期对话框 private int year, monthOfYear, dayOfMonth, hourOfDay, minute; private TimePickerDialog timePickerDialog;// 时间对话框 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button1 = (Button) this.findViewById(R.id.button1); button2 = (Button) this.findViewById(R.id.button2); editText = (EditText) this.findViewById(R.id.editText1); /* * 获取当前的日期及时间 */ Calendar calendar = Calendar.getInstance(); year = calendar.get(Calendar.YEAR); monthOfYear = calendar.get(Calendar.MONTH) + 1; dayOfMonth = calendar.get(Calendar.DAY_OF_MONTH); hourOfDay = calendar.get(Calendar.HOUR_OF_DAY); minute = calendar.get(Calendar.MINUTE); /* * 对日期选择器进行设置 */ datePickerDialog = new DatePickerDialog(this, new OnDateSetListener() { @Override public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { String text = year + "-" + monthOfYear + "-" + dayOfMonth; editText.setText(text); } }, year, monthOfYear, dayOfMonth); button1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { datePickerDialog.show(); } }); /* * 时间选择器的设置 */ timePickerDialog = new TimePickerDialog(MainActivity.this, new OnTimeSetListener() { @Override public void onTimeSet(TimePicker view, int hourOfDay, int minute) { String text = hourOfDay + ":" + minute; editText.setText(text); } }, hourOfDay, minute, true); button2.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { timePickerDialog.show(); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; }}（3）运行结果
