【03】DatePicker

package min.datepicker_1;

import java.util.Calendar;

import android.app.Activity;
import android.app.ActionBar;
import android.app.DatePickerDialog;
import android.app.Fragment;
import android.os.Bundle;
import android.text.method.DateTimeKeyListener;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.DatePicker;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.TimePicker.OnTimeChangedListener;
import android.widget.Toast;
import android.os.Build;

public class MainActivity extends Activity {

private DatePicker date_picker;
private TimePicker time_picker;
private TextView tv_date;
private TextView tv_time;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//初始化
date_picker=(DatePicker) findViewById(R.id.date);
time_picker=(TimePicker) findViewById(R.id.time);
tv_date=(TextView) findViewById(R.id.tv_date);
tv_time=(TextView) findViewById(R.id.tv_time);
//获取当前的年月日时分信息
Calendar c=Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month=c.get(Calendar.MONTH);
int day=c.get(Calendar.DAY_OF_MONTH);
int hour=c.get(Calendar.HOUR_OF_DAY);
int minute=c.get(Calendar.MINUTE);
tv_date.setText("现在日期："+year+"-"+(month+1)+"-"+day);
tv_time.setText("现在时间："+hour+":"+minute);
//初始化日期
date_picker.init(year, month, day, new OnDateChangedListener() {

//监听日期的改变
@Override
public void onDateChanged(DatePicker view, int year, int monthOfYear,
int dayOfMonth) {
// TODO Auto-generated method stub
//Toast.makeText(MainActivity.this, "现在时间："+year+"-"+(monthOfYear+1)+"-"+dayOfMonth, 0).show();
tv_date.setText("现在日期："+year+"-"+(monthOfYear+1)+"-"+dayOfMonth);
}
});

//设置时间为24小时制
time_picker.setIs24HourView(true);
time_picker.setOnTimeChangedListener(new OnTimeChangedListener() {
@Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
// TODO Auto-generated method stub
tv_time.setText("现在时间："+hourOfDay+":"+minute);
}
});

}
}

<?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" >

<TextViewandroid:id="@+id/tv_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>

<DatePicker
android:id="@+id/date"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

<TextViewandroid:id="@+id/tv_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>

<TimePicker
android:id="@+id/time"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

</LinearLayout>