Android开发中DatePicker日期与时间控件实例代码

package fry;
import com.example.DatePicherDemo1.R;
import android.app.Activity;
import android.os.Bundle;
import android.widget.DatePicker;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.TimePicker;
import android.widget.TimePicker.OnTimeChangedListener;
import android.widget.Toast;
public class Activity01 extends Activity implements OnDateChangedListener,OnTimeChangedListener{
  private DatePicker datePicker1;
  private TimePicker timePicker1;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity01);
    setTitle("时间日期控件测试");
    datePicker1=(DatePicker) findViewById(R.id.datePicker1);
    timePicker1=(TimePicker) findViewById(R.id.timePicker1);
    //初始化日期，并设置日期被改变后的监听事件
    datePicker1.init(2017, 8, 7, this);
    //设置时间以24小时制
    timePicker1.setIs24HourView(true);
    //设置时间被改变后的监听时间
    timePicker1.setOnTimeChangedListener(this);
  }
  @Override
  public void onDateChanged(DatePicker view, int year, int monthOfYear,
      int dayOfMonth) {
    // TODO Auto-generated method stub
    Toast.makeText(this, "日期被改变为： "+year+"."+(monthOfYear+1)+"."+dayOfMonth, Toast.LENGTH_SHORT).show();
  }
  @Override
  public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
    // TODO Auto-generated method stub
    Toast.makeText(this, "时间被改变为： "+hourOfDay+"："+minute, Toast.LENGTH_SHORT).show();
  }
}

<?xml version="1.0" encoding="utf-8"? 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"  
  <DatePicker 
    android:id="@+id/datePicker1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    / 
  <TimePicker 
    android:id="@+id/timePicker1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    / 
</LinearLayout 

datePicker1.init(2017, 8, 7, this);

timePicker1.setIs24HourView(true);

timePicker1.setOnTimeChangedListener(this);