圖片(圖片類別)位於SMFPlayer(兩個元素均在代碼隱藏中創建)之上。圖像的Z索引是SMFPlayer + 1的Z索引。根據SMFPlayer的播放進度調整圖像大小(調整寬度)。在SMFPlayer上方顯示圖片問題
videoPlayer = new SMFPlayer();
videoPlayer.Width = 1920;
videoPlayer.Height = 1080;
videoPlayer.Margin = new Thickness(1920, 0, 0, 0);
PlaylistItem item = new PlaylistItem();
Random r = new Random();
item.MediaSource = new Uri("video.wmv");
item.DeliveryMethod = DeliveryMethods.ProgressiveDownload;
videoPlayer.Playlist.Add(item);
videoPlayer.AutoPlay = true;
videoPlayer.AutoLoad = true;
videoPlayer.IsControlStripVisible = false;
videoPlayer.PlaylistVisibility = FeatureVisibility.Disabled;
videoPlayer.MediaEnded += new EventHandler(player_MediaEnded);
LayoutRoot.Children.Add(videoPlayer);
bar_yellow3 = new Image();
bar_yellow3.Source = new BitmapImage(new Uri("/SMF_ProgressiveDownload1;component/assets/bar_y.png", UriKind.Relative));
bar_yellow3.Width = 775;
bar_yellow3.Height = 34;
bar_yellow3.Margin = new Thickness(2948,1034,0,0);
bar_yellow3.Stretch = Stretch.Fill;
bar_yellow3.VerticalAlignment = VerticalAlignment.Top;
bar_yellow3.HorizontalAlignment = HorizontalAlignment.Left;
LayoutRoot.Children.Add(bar_yellow3);
然而,當播放進度小於20%時,圖像隨機閃爍。當SMFPlayer設置爲不可見(Visibility.Collapsed)時,圖像正常。
我試圖調用圖像的更新函數,它是:bar_yellow3.UpdateLayout();但該方法不能解決閃爍的問題。
任何解決方案?
你能展示你用來更新大小的方法嗎? – jv42 2011-12-21 15:47:43