第6章（5） DatePickerDialog和TimePickerDialog

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">
    <Button
        android:id="@+id/btnDate"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="选择日期" />
    <TextView
        android:id="@+id/textDateInfo"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:cursorVisible="false"
        android:editable="false"
        android:gravity="center"
        android:layout_marginBottom="20dp"
        android:text="选择的日期为：" />
    <Button
        android:id="@+id/btnTime"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="选择时间" />
    <TextView
        android:id="@+id/textTimeInfo"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:cursorVisible="false"
        android:editable="false"
        android:gravity="center"
        android:layout_marginBottom="20dp"
        android:text="选择的时间为：" />
    <AnalogClock
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/analogClock1" />
</LinearLayout>

using System;
using Android.App;
using Android.OS;
using Android.Widget;

namespace ch06demos.SrcActivity
{
    [Activity(Label = "Demo04DatePickerTimePicker")]
    public class Demo04DatePickerDialog : Activity
    {
        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);
            SetContentView(Resource.Layout.Demo04_DatePickerDialog);

            var date = DateTime.Now;
            var hour = date.Hour;
            var minute = date.Minute;

            var textDateInfo = FindViewById<TextView>(Resource.Id.textDateInfo);
            var btnDate = FindViewById<Button>(Resource.Id.btnDate);
            btnDate.Click += delegate
            {
                var dialog = new DatePickerDialog(this, (sender, args) =>
                {
                    date = args.Date;
                    textDateInfo.Text = string.Format("选择的日期为：{0:yyyy-MM-dd}", date);
                },
                date.Year,
                date.Month - 1,  //Andoid的月份从0开始计数，所以要减1
                date.Day);
                dialog.Show();
            };

            var textTimeInfo = FindViewById<TextView>(Resource.Id.textTimeInfo);
            var btnTime = FindViewById<Button>(Resource.Id.btnTime);
            btnTime.Click += delegate
            {
                var dialog = new TimePickerDialog(this, (sender, args) =>
                {
                    hour = args.HourOfDay;
                    minute = args.Minute;
                    textTimeInfo.Text = string.Format("选择的时间为：{0:00}:{1:00}", hour, minute);
                }, hour, minute, true);  //true:24小时制,false:12小时制
                dialog.Show();
            };
        }
    }
}