Wpf_AiSportsMicrospace/Wpf_AiSportsMicrospace/MyUserControl/MusicUserItem.xaml.cs

using HandyControl.Controls;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
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.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
using WpfAnimatedGif;

namespace Wpf_AiSportsMicrospace.MyUserControl
{
    /// <summary>
    /// CoverFlowControl.xaml 的交互逻辑
    /// </summary>
    /// ST
    public partial class MusicUserItem : UserControl
    {
        public MusicUserItem()
        {
            InitializeComponent();
            //InitGif();
        }

        public string DisplayText
        {
            get => (string)GetValue(DisplayTextProperty);
            set => SetValue(DisplayTextProperty, value);
        }

        public static readonly DependencyProperty DisplayTextProperty =
            DependencyProperty.Register(nameof(DisplayText), typeof(string), typeof(MusicUserItem), new PropertyMetadata("??"));

        public string NumberText
        {
            get => (string)GetValue(NumberTextProperty);
            set => SetValue(NumberTextProperty, value);
        }

        public static readonly DependencyProperty NumberTextProperty =
            DependencyProperty.Register(nameof(NumberText), typeof(string), typeof(MusicUserItem), new PropertyMetadata("0"));

        public string ImageState
        //0 没有人 1 准备中 2 运动中 3 出圈了
        {
            get => (string)GetValue(ImageStateProperty);
            set => SetValue(ImageStateProperty, value);
        }

        public static readonly DependencyProperty ImageStateProperty =
            DependencyProperty.Register(nameof(ImageState), typeof(string), typeof(MusicUserItem), new PropertyMetadata("0", OnImageStateChanged));

        private static void OnImageStateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var control = (MusicUserItem)d;
            control.ShowImage((string)e.NewValue);
        }
        private void ShowImage(string imageIndex)
        {
            // 隐藏所有图片
            image1.Visibility = Visibility.Hidden;
            image2.Visibility = Visibility.Hidden;
            image3.Visibility = Visibility.Hidden;

            // 显示指定的图片
            switch (imageIndex)
            {
                case "1":
                    //image1.Visibility = Visibility.Visible;
                    //image1.Visibility = Visibility.Visible;
                    image1.Visibility = Visibility.Visible;
                    //Pause_Click();
                    break;
                case "2":
                    //image2.Visibility = Visibility.Visible;
                    image2.Visibility = Visibility.Visible;
                    //Play_Click();
                    break;
                case "3":
                    image3.Visibility = Visibility.Visible;
                    break;
            }
        }
        private BitmapImage _gifSource;
        private BitmapFrame _firstFrame; // <- 改为 BitmapFrame

        private void InitGif()
        {
            var uri = new Uri("pack://application:,,,/Resources/Img/test_img/one_rope/jump_rope.gif");

            // 1) 加载用于播放的 BitmapImage（注意 OnLoad 防止被锁定）
            _gifSource = new BitmapImage();
            _gifSource.BeginInit();
            _gifSource.UriSource = uri;
            _gifSource.CacheOption = BitmapCacheOption.OnLoad;
            _gifSource.EndInit();

            // 2) 提取第一帧（使用 GifBitmapDecoder）
            var sri = Application.GetResourceStream(uri);
            if (sri != null)
            {
                using (var stream = sri.Stream)
                {
                    var decoder = new GifBitmapDecoder(stream, BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.OnLoad);
                    if (decoder.Frames.Count > 0)
                        _firstFrame = decoder.Frames[0];
                }
            }

            // 3) 默认显示第一帧（静态）
            image2.Source = _firstFrame;
        }

        private void Play_Click()
        {
            // 重新设置动画源并播放
            //ImageBehavior.SetAnimatedSource(image2, _gifSource);
            //ImageBehavior.GetAnimationController(image2)?.Play();
            var controller = ImageBehavior.GetAnimationController(image2);
            controller?.Play();
        }
        private void Pause_Click()
        {
            var controller = ImageBehavior.GetAnimationController(image2);
            if (controller != null)
            {
                controller.Pause();       // 暂停动画
                //controller.GotoFrame(0);  // 回到第一帧
            }
        }
    }
}