Android笔记——date&time(日期时间选择对话框)

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：http://wenku.baidu.com/link?url=U77TPsl99lpf8QrGD2h6XKA6xJqzk-JseCnJhC9VmgYoWckhCZ8-3F3TzOkOZGLverjwt6JitlhW-wWMODAOQLtEpVxryaZxNlCQstOjLCK

点击打开链接

源码：

html

<LinearLayout 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:orientation="vertical">

    <Button 
        android:id="@+id/button1_settime"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Set Time"
        android:onClick="setTimeClick"/>

    <TextView 
        android:id="@+id/tv_settime"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <Button 
        android:id="@+id/button1_setdate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Set Date"
        android:onClick="setDateClick"/>

    <TextView 
        android: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：