using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
using System.Windows.Media.Animation;
using System.Threading;
namespace QinQinGo.MyControl
{
/// <summary>
/// AdvertPicControl.xaml 的交互逻辑 广告图片控件 播放完毕后自我销毁
/// </summary>
public partial class AdvertPicControl : UserControl
{
#region 加载List数据
/// <summary>
/// 当前图片地址播放列表
/// </summary>
private static List<string> currentList;
public static DependencyProperty advertPicList = DependencyProperty.Register("advertPicList", typeof(List<string>), typeof(AdvertPicControl)
, new PropertyMetadata(new PropertyChangedCallback(loadAdvertPic)));
public List<string> AdvertPicList
{
get { return (List<string>)GetValue(advertPicList); }
set { SetValue(advertPicList, value); }
}
/// <summary>
/// 图片播放器地址
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void loadAdvertPic(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
AdvertPicControl advertPicControl = (AdvertPicControl)sender;
if (e.Property == advertPicList)
{
advertPicControl.AdvertPicList = (List<string>)e.NewValue;
currentList = advertPicControl.AdvertPicList;
}
}
#endregion
#region 加载图片停留时间
/// <summary>
/// 当前图片地址播放列表
/// </summary>
private static List<int> currentTimeList;
public static DependencyProperty advertPicStayTime = DependencyProperty.Register("advertPicStayTime", typeof(List<int>), typeof(AdvertPicControl)
, new PropertyMetadata(new PropertyChangedCallback(loadAdvertStayTime)));
public List<int> AdvertPicStayTime
{
get { return (List<int>)GetValue(advertPicStayTime); }
set { SetValue(advertPicStayTime, value); }
}
/// <summary>
/// 图片播放器图片停留时间
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void loadAdvertStayTime(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
AdvertPicControl advertPicControl = (AdvertPicControl)sender;
if (e.Property == advertPicStayTime)
{
advertPicControl.AdvertPicStayTime = (List<int>)e.NewValue;
currentTimeList = advertPicControl.AdvertPicStayTime;
}
}
#endregion
#region 注册自定义事件和参数
public static readonly RoutedEvent AdvertPicPlayStateChangedEvent;
public class AdvertPicPlayEventArgs : RoutedEventArgs
{
public int playState
{
get;
set;
}
public int playLength
{
get;
set;
}
public int playIndex
{
get;
set;
}
}
static AdvertPicControl()
{
AdvertPicPlayStateChangedEvent = EventManager.RegisterRoutedEvent("AdvertPicPlayStateChanged",
RoutingStrategy.Bubble, typeof(AdvertPicPlayStateChangedHandler), typeof(AdvertPicControl));
}
public delegate void AdvertPicPlayStateChangedHandler(object sender, AdvertPicPlayEventArgs e);
public event AdvertPicPlayStateChangedHandler AdvertPicPlayStateChanged
{
add { AddHandler(AdvertPicControl.AdvertPicPlayStateChangedEvent, value); }
remove { RemoveHandler(AdvertPicControl.AdvertPicPlayStateChangedEvent, value); }
}
#endregion
public AdvertPicControl()
{
InitializeComponent();
}
DispatcherTimer switchPicTimer = new DispatcherTimer();
int i = 0;
private void UserControl_Loaded(object sender, RoutedEventArgs e)
{
//默认 1秒切换一张图片
switchPicTimer.IsEnabled = false;
switchPicTimer.Tick += SwitchPicEvent;
}
/// <summary>
/// 开始播放
/// </summary>
/// <param name="interval">图片切换时间</param>
public void Play(int interval)
{
switchPicTimer.IsEnabled = true;
switchPicTimer.Interval = new TimeSpan(0, 0, 1);
switchPicTimer.Start();
i = 0;
}
/// <summary>
/// 停止播放
/// </summary>
public void Stop()
{
switchPicTimer.IsEnabled = false;
switchPicTimer.Stop();
}
/// <summary>
/// 切换图片事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void SwitchPicEvent(object sender, EventArgs e)
{
if (null != currentList)
{
Console.WriteLine("开始切换~~~");
if (i < currentList.Count - 1)
{
DoHandlerStop(Image.OpacityProperty, 1, 0, 1, imgAdvertPic, SwitchPic);
}
else
{
AdvertPicPlayEventArgs args = new AdvertPicPlayEventArgs();
args.RoutedEvent = AdvertPicPlayStateChangedEvent;
args.playState = 1;
RaiseEvent(args);
switchPicTimer.Stop();
switchPicTimer.IsEnabled = false;
}
if (null != currentTimeList)
{
Thread.Sleep(currentTimeList[i]); //图片停留时间
}
}
}
/// <summary>
/// 动画播放完毕切换图片
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void SwitchPic(object sender, EventArgs e)
{
BitmapImage bitmap = new BitmapImage(new Uri(currentList[i], UriKind.Absolute));
imgAdvertPic.Stretch = Stretch.Fill;
imgAdvertPic.Source = bitmap;
if (i < currentList.Count)
{
i++;
}
}
/// <summary>
/// 动画
/// </summary>
/// <param name="dp"></param>
/// <param name="from"></param>
/// <param name="to"></param>
/// <param name="duration"></param>
/// <param name="element"></param>
/// <param name="complateHander"></param>
public void DoHandlerStop(DependencyProperty dp, double from, double to, double duration, UIElement element, EventHandler complateHander)
{
DoubleAnimation doubleAnimation = new DoubleAnimation();//创建双精度动画对象
doubleAnimation.From = from;
doubleAnimation.To = to;//设置动画的结束值
doubleAnimation.Duration = TimeSpan.FromSeconds(duration);//设置动画时间线长度
doubleAnimation.FillBehavior = FillBehavior.Stop;//设置动画完成后执行的操作
doubleAnimation.Completed += complateHander;
element.BeginAnimation(dp, doubleAnimation);//设置动画应用的属性并启动动画
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;
using QinQinGo.MyControl;
namespace PicSwitcher
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
/// <summary>
/// 获取当前用户的图片文件夹中的图片(不包含子文件夹)
/// </summary>
/// <returns>返回图片路径列表</returns>
private List<string> GetUserImages()
{
List<string> images = new List<string>();
string path = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures);
DirectoryInfo dir = new DirectoryInfo(path);
FileInfo[] files = GetPicFiles(path, "*.jpg,*.png,*.bmp,*.gif,", SearchOption.TopDirectoryOnly);// dir.GetFiles("*.jpg", SearchOption.AllDirectories);
if (files != null)
{
foreach (FileInfo file in files)
{
images.Add(file.FullName);
}
}
return images;
}
public FileInfo[] GetPicFiles(string picPath, string searchPattern, SearchOption searchOption)
{
System.Collections.Generic.List<FileInfo> ltList = new List<FileInfo>();
DirectoryInfo dir = new DirectoryInfo(picPath);
string[] sPattern = searchPattern.Replace(';', ',').Split(',');
for (int i = 0; i < sPattern.Length; i++)
{
FileInfo[] files = null;
try
{
files = dir.GetFiles(sPattern[i], searchOption);
}
catch (System.Exception ex)
{
files = new FileInfo[] { };
}
ltList.AddRange(files);
}
return ltList.ToArray();
}
AdvertPicControl advertPic = new AdvertPicControl();
private void Window_Loaded(object sender, RoutedEventArgs e)
{
List<string> imageList = GetUserImages();
advertPic.AdvertPicList = this.GetUserImages();
grdContent.Children.Add(advertPic);
advertPic.AdvertPicPlayStateChanged += playStateHandler;
}
private void playStateHandler(object sender, AdvertPicControl.AdvertPicPlayEventArgs args)
{
MessageBox.Show("播放完了，触发事件....");
}
private void btnStart_Click(object sender, RoutedEventArgs e)
{
advertPic.Play(Convert.ToInt32(tbTime.Text)); //设置默认切换时间
}
private void btnStop_Click(object sender, RoutedEventArgs e)
{
advertPic.Stop();
}
}
}
