TimePickerDialog(时间选择对话框)
创建TimePickerDialog时间选择对话框：
1.创建一个类继承DialogFragement
2.重写onCreateDialog()方法，返回一个TimePickerDialog对象
3.实现TimePickerDialog的OnTimeSetListener接口来接收一个回调，当用户设置时间
DatePickerDialog(日期选择对话框)
创建DatePickerDialog日期选择对话框：
1.创建一个类继承DialogFragment
2.重写onCreateDialog()方法，返回一个TimePickerDialog对象
3.实现DatePickerDialog的OnDateSetListener接口来接收一个回调，，当用户设置日期
DatePickerDialog和TimePickerDialog是Android提供的可以弹出一个日期、时间选择的对话框，我们可以在程序中通过实例化DatePickerDialog和TimePickerDialog来得到一个日期、时间对话框。这两个类都是AlertDialog的子类
我提供了一个百度的关于Picker的官方说明，可能对理解这篇文章有帮助：?url=U77TPsl99lpf8QrGD2h6XKA6xJqzk-JseCnJhC9VmgYoWckhCZ8-3F3TzOkOZGLverjwt6JitlhW-wWMODAOQLtEpVxryaZxNlCQstOjLCK
点击打开链接
源码：
html
<LinearLayout xmlns:android=""xmlns:tools=""android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><Buttonandroid:id="@+id/button1_settime"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="Set Time"android:onClick="setTimeClick"/><TextViewandroid:id="@+id/tv_settime"android:layout_width="wrap_content"android:layout_height="wrap_content"/><Buttonandroid:id="@+id/button1_setdate"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="Set Date"android:onClick="setDateClick"/><TextViewandroid:id="@+id/tv_setdate"android:layout_width="wrap_content"android:layout_height="wrap_content"/></LinearLayout>
java
<span style="font-size:12px;">import java.util.Calendar;import android.os.Bundle;import android.annotation.SuppressLint;import android.app.Activity;import android.app.DatePickerDialog;import android.app.Dialog;import android.app.DialogFragment;import android.app.TimePickerDialog;import android.text.format.DateFormat;import android.view.Menu;import android.view.View;import android.widget.Button;import android.widget.DatePicker;import android.widget.TextView;import android.widget.TimePicker;@SuppressLint({ "NewApi", "ValidFragment" })public class MainActivity extends Activity {private Button btnSetTime;private TextView tv_setTime;private TextView tv_setDate;protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//实例化对象，通过findViewById和相应的xml布局组件绑定 btnSetTime = (Button) findViewById(R.id.button1_settime);tv_setTime = (TextView) findViewById(R.id.tv_settime);tv_setDate = (TextView) findViewById(R.id.tv_setdate);}//设置日期事件处理方法public void setDateClick(View v){SetDateDialog sdt = new SetDateDialog();sdt.show(getFragmentManager(), "datePicker");}//设置时间事件处理方法public void setTimeClick(View v){SetTimeDialog std = new SetTimeDialog();std.show(getFragmentManager(), "timePicker");}public boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}//创建日期选择对话框class SetDateDialog extends DialogFragment implements DatePickerDialog.OnDateSetListener{public Dialog onCreateDialog(Bundle savedInstanceState) {//Calendar 是一个抽象类，是通过getInstance()来获得实例,设置成系统默认时间final Calendar c = Calendar.getInstance();//获取年，月，日int year = c.get(Calendar.YEAR);int month = c.get(Calendar.MONTH);int day= c.get(Calendar.DAY_OF_MONTH); DatePickerDialog dpd = new DatePickerDialog(getActivity(), this, year, month, day);return dpd;}public void onDateSet(DatePicker view, int year, int month, int day) {tv_setDate.setText(year+"年"+(month+1)+"月"+day+"日");}}//创建时间选择对话框@SuppressLint("NewApi") class SetTimeDialog extends DialogFragment implements TimePickerDialog.OnTimeSetListener{@SuppressLint("NewApi")public Dialog onCreateDialog(Bundle savedInstanceState) {//获取小时，分钟final Calendar c = Calendar.getInstance();int hour = c.get(Calendar.HOUR_OF_DAY);int minute = c.get(Calendar.MINUTE);TimePickerDialog tpd = new TimePickerDialog(getActivity(),this,hour, minute, DateFormat.is24HourFormat(getActivity()));return tpd;}public void onTimeSet(TimePicker view, int hourOfDay, int minute){tv_setTime.setText(hourOfDay+":"+minute);}}}</span>
效果展示：
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