{"id":289,"date":"2023-02-20T02:47:04","date_gmt":"2023-02-20T10:47:04","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/?p=289"},"modified":"2023-02-20T02:47:04","modified_gmt":"2023-02-20T10:47:04","slug":"maui%e4%b8%ad%e5%a4%a7%e5%ae%b6%e6%9c%9f%e5%be%85%e7%9a%84mediaelement-%e6%8e%a7%e4%bb%b6%e7%bb%88%e4%ba%8e%e6%9d%a5%e5%95%a6","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/dotnet-ch\/maui%e4%b8%ad%e5%a4%a7%e5%ae%b6%e6%9c%9f%e5%be%85%e7%9a%84mediaelement-%e6%8e%a7%e4%bb%b6%e7%bb%88%e4%ba%8e%e6%9d%a5%e5%95%a6\/","title":{"rendered":"MAUI\u4e2d\u5927\u5bb6\u671f\u5f85\u7684MediaElement \u63a7\u4ef6\u7ec8\u4e8e\u6765\u5566"},"content":{"rendered":"

\u672c\u6587\u7ffb\u8bd1\u4e8eGerald Versluis\u7684\u8fd9\u7bc7\u82f1\u6587\u6587\u7ae0\uff1aPlay Audio and Video in .NET MAUI apps with the new MediaElement<\/a>\u00a0\u3002<\/em><\/strong><\/span><\/p>\n

\u6700\u53d7\u671f\u5f85\u7684 .NET MAUI \u63a7\u4ef6\u4e4b\u4e00\uff1aMediaElement\u73b0\u5df2\u53d1\u5e03\u3002\u6709\u4e86 MediaElement\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u5728 .NET MAUI \u5e94\u7528\u7a0b\u5e8f\u4e2d\u64ad\u653e\u97f3\u9891\u548c\u89c6\u9891\uff0c\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u60a8\u5c06\u4e86\u89e3\u5230\u6709\u5173MediaElement\u7b2c\u4e00\u4e2a\u7248\u672c\u7684\u6240\u6709\u4fe1\u606f\u4ee5\u53ca\u6211\u4eec\u5bf9\u672a\u6765\u7684\u8ba1\u5212\uff01Media Element \u662f.NET MAUI Community Toolkit<\/a>\u7684\u4e00\u90e8\u5206\uff0c\u8fd9\u662f\u4e00\u4e2a\u793e\u533a\u521b\u5efa\u7684\u5e93\uff0c\u53d7\u5230\u6765\u81ea\u5168\u7403\u793e\u533a\u548c Microsoft \u7684\u4f18\u79c0\u5f00\u53d1\u4eba\u5458\u7684\u652f\u6301\u3002<\/p>\n

\u4ec0\u4e48\u662f<\/strong>MediaElement<\/strong>\uff1f<\/strong><\/h5>\n

\u6709\u4e86 MediaElement\uff0c\u60a8\u5c31\u6709\u4e86\u5f3a\u5927\u7684\u63a7\u4ef6\uff0c\u4ece\u800c\u53ef\u4ee5\u5728 .NET MAUI \u5e94\u7528\u7a0b\u5e8f\u4e2d\u64ad\u653e\u591a\u5a92\u4f53\u3002<\/p>\n

\u5f97\u76ca\u4e8e\u793e\u533a\u6210\u5458 Peter Foot \u7684\u51fa\u8272\u5de5\u4f5c\uff0c\u60a8\u53ef\u80fd\u5df2\u7ecf\u4ece Xamarin \u793e\u533a\u5de5\u5177\u5305\u4e2d\u4e86\u89e3\u5230\u4e86 MediaElement\u3002\u867d\u7136\u90a3\u4e2a\u7248\u672c\u5df2\u7ecf\u5f88\u4e0d\u9519\u4e86\uff0c\u4f46\u5b83\u8fd8\u6709\u6539\u8fdb\u7684\u7a7a\u95f4\uff0c\u5c24\u5176\u662f\u5728 Android \u4e0a\u3002<\/p>\n

\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u5728\u5c06 MediaElement \u79fb\u690d\u5230 .NET MAUI \u65f6\uff0c\u6211\u4eec\u4ece\u57fa\u5c42\u91cd\u5efa\u4e86\u6240\u6709\u5185\u5bb9\u3002\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u5728\u4fdd\u7559\u6240\u6709\u5df2\u7ecf\u5f88\u597d\u7684\u90e8\u5206\u7684\u540c\u65f6\u505a\u4e00\u4e9b\u6539\u8fdb\u3002<\/p>\n

\u5e95\u5c42\u903b\u8f91<\/strong><\/h5>\n

\u9488\u5bf9 Android\uff0c\u6211\u4eec\u9009\u62e9ExoPlayer<\/a>\u7528\u4f5c\u5e73\u53f0\u5bf9\u5e94\u7269\uff0c\u66ff\u6362\u6211\u4eec\u7528\u4e8e Xamarin \u7684 Android MediaPlayer\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u81ea\u52a8\u83b7\u5f97\u4e86\u5373\u7528\u7684\u989d\u5916\u529f\u80fd\uff0c\u4f8b\u5982\u64ad\u653e HTTP \u5b9e\u65f6\u6d41\u5f0f\u4f20\u8f93 (HLS) \u89c6\u9891\u3001\u7f8e\u89c2\u7684\u5e73\u53f0\u4f20\u8f93\u63a7\u4ef6\u4ee5\u53ca\u8bb8\u591a\u5176\u4ed6\u529f\u80fd\u3002<\/p>\n

\u9488\u5bf9iOS \u548c macOS\uff0c\u6211\u4eec\u4f7f\u7528 AVPlayer<\/a>\u5e73\u53f0\uff0c\u5c31\u50cf\u6211\u4eec\u5728Xamarin\u7684MediaElement\u4e0a\u6240\u505a\u7684\u90a3\u6837\u3002\u6b64\u5916\uff0cTizen \u4ecd\u7136\u4f7f\u7528.Tizen.Multimedia.Player<\/a>\u3002<\/p>\n

\u73b0\u5728 .NET MAUI \u6784\u5efa\u5728 WinUI \u7684\u57fa\u7840\u4e4b\u4e0a\uff0c\u800c\u4e0d\u662f UWP \uff0c\u6211\u4eec\u8fd9\u91cc\u4f7f\u7528\u4e86\u5168\u65b0\u7684 WinUI\u00a0MediaPlayerElement<\/a>\u3002\u867d\u7136\u8fd9\u4e2a\u63a7\u4ef6\u5bf9\u4e8e WinUI \u6765\u8bf4\u4e5f\u5f88\u5e74\u8f7b\uff0c\u4f46\u5b83\u5df2\u7ecf\u975e\u5e38\u5b8c\u6574\u5e76\u4e14\u5f88\u6709\u524d\u9014\u3002<\/p>\n

\u5bf9\u4e0d\u540c\u5a92\u4f53\u683c\u5f0f\u7684\u652f\u6301\u56e0\u5e73\u53f0\u800c\u5f02\uff08\u53ef\u80fd\u8fd8\u4f1a\u56e0\u4f60\u5b89\u88c5\u7684\u7f16\u89e3\u7801\u5668\u800c\u4e0d\u540c\uff09\uff0c\u4f46\u901a\u8fc7\u4f7f\u7528\u5e73\u53f0\u539f\u751f\u5a92\u4f53\u64ad\u653e\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u6709\u6548\u5229\u7528\u6240\u6709\u529f\u80fd\u548c\u76f8\u5173\u7684\u4f18\u5316\u6027\u80fd\u3002<\/p>\n

\u5165\u95e8<\/strong><\/h5>\n

\u60f3\u8981\u5f00\u59cb\u4f7f\u7528 MediaElement \u5f88\u5bb9\u6613\u3002\u9996\u5148\uff0c\u4f60\u8981\u5b89\u88c5CommunityToolkit.Maui.MediaElement<\/a> NuGet \u5305\u3002\u8fd9\u662f\u4e00\u4e2a\u72ec\u7acb\u4e8e\u4e3b\u8981\u793e\u533a\u5de5\u5177\u5305\u7684\u5305\u3002<\/p>\n

\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u8fdb\u5165\u4f60\u7684MauiProgram.cs\u5e76\u5c06\u4ee5\u4e0b\u521d\u59cb\u5316\u884c\u6dfb\u52a0\u5230MauiAppBuilder\uff1a<\/p>\n

public static MauiApp CreateMauiApp()\r\n{\r\n    var builder = MauiApp.CreateBuilder();\r\n    builder\r\n        .UseMauiApp<App>()\r\n        \/\/ Initialize the .NET MAUI Community Toolkit MediaElement by adding the below line of code\r\n        .UseMauiCommunityToolkitMediaElement()\r\n        \/\/ After initializing the .NET MAUI Community Toolkit, optionally add additional fonts, and other things\r\n        .ConfigureFonts(fonts =>\r\n        {\r\n            fonts.AddFont(\"OpenSans-Regular.ttf\", \"OpenSansRegular\");\r\n            fonts.AddFont(\"OpenSans-Semibold.ttf\", \"OpenSansSemibold\");\r\n        });\r\n\r\n    \/\/ Continue initializing your .NET MAUI App here\r\n\r\n    return builder. Build();\r\n}<\/code><\/pre>\n
\u73b0\u5728\u4f60\u5df2\u7ecf\u53ef\u4ee5\u5f00\u59cb\u5728\u4f60\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528 MediaElement\u4e86\uff01\u4e0b\u9762\u662f\u4e00\u4e2a XAML \u4e2d\u7684\u7b80\u5355\u793a\u4f8b\u3002<\/p>\n
<ContentPage xmlns=\"http:\/\/schemas.microsoft.com\/dotnet\/2021\/maui\"\r\n             xmlns:x=\"http:\/\/schemas.microsoft.com\/winfx\/2009\/xaml\"\r\n             xmlns:toolkit=\"http:\/\/schemas.microsoft.com\/dotnet\/2022\/maui\/toolkit\"\r\n             x:Class=\"MediaElementDemos.GettingStarted\"\r\n             Title=\"MediaElement Getting Started\">\r\n\r\n    <toolkit:MediaElement x:Name=\"mediaElement\"\r\n                      ShouldAutoPlay=\"True\"\r\n                      ShouldShowPlaybackControls=\"True\"\r\n                      Source=\"https:\/\/commondatastorage.googleapis.com\/gtv-videos-bucket\/sample\/BigBuckBunny.mp4\"\r\n                      HeightRequest=\"300\"\r\n                      WidthRequest=\"400\"\r\n                      ... \/>\r\n<\/ContentPage><\/code><\/pre>\n
\u8fd9\u4f1a\u5c06 MediaElement \u63a7\u4ef6\u6dfb\u52a0\u5230\u52a0\u8f7d\u89c6\u9891\u65f6\u81ea\u52a8\u5f00\u59cb\u64ad\u653e\u7684\u9875\u9762\uff0c\u5728 iOS \u548c Windows \u4e0a\u8fd0\u884c\u540e\u7684\u6548\u679c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
\"Image<\/a><\/p>\n
\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4e0d\u6253\u7b97\u8be6\u7ec6\u4ecb\u7ecd\u7b2c\u4e00\u4e2a\u7248\u672c\u4e2d\u5df2\u6709\u7684\u4e30\u5bcc\u529f\u80fd\u3002\u4f46\u6709\u4e00\u4ef6\u4e8b\u6211\u8981\u63d0\u9192\u5927\u5bb6\uff0c\u4f5c\u4e3a\u5f00\u53d1\u4eba\u5458\uff0c\u5927\u5bb6\u80a9\u8d1f\u91ca\u653eMediaElement \u8d44\u6e90\u7684\u8d23\u4efb\u3002\u4f8b\u5982\uff0c\u5e94\u7528\u53ef\u4ee5\u5728\u753b\u4e2d\u753b\u6a21\u5f0f\u4e0b\u64ad\u653e\u89c6\u9891\uff0c\u4e5f\u53ef\u4ee5\u5728\u540e\u53f0\u64ad\u653e\u97f3\u9891\uff0c\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5e94\u7528\u65e0\u6cd5\u81ea\u52a8\u786e\u5b9a\u5e94\u8be5\u4f55\u65f6\u6e05\u7406 MediaElement \u8d44\u6e90\u3002<\/p>\n
\u8981\u786e\u5b9a\u8fd9\u70b9\u53ea\u9700\u8981\u4e00\u884c\u4ee3\u7801\u3002\u5728\u4e0b\u9762\u7684\u4ee3\u7801\u6bb5\u4e2d\uff0c\u60a8\u53ef\u4ee5\u770b\u5230\uff0c\u5f53\u7528\u6237\u5bfc\u822a\u79bb\u5f00 MediaElement \u63a7\u4ef6\u7684 ContentPage\u9875\u9762\u540e\uff0c\u8d44\u6e90\u5c31\u88ab\u91ca\u653e\u4e86\u3002<\/p>\n
public partial class FreeResourcesPage : ContentPage\r\n{\r\n    void ContentPage_Unloaded(object? sender, EventArgs e)\r\n    {\r\n        \/\/ Stop and cleanup MediaElement when we navigate away\r\n        mediaElement.Handler?.DisconnectHandler();\r\n    }\r\n}<\/code><\/pre>\n
\u8981\u6df1\u5165\u4e86\u89e3\u6709\u5173MediaElement\u73b0\u9636\u6bb5\u5168\u90e8\u529f\u80fd\uff0c\u8bf7\u67e5\u770b\u6b64\u6587\u6863\u9875\u9762\u8fdb\u884c\u6df1\u5165\u7814\u7a76documentation page<\/a>\u00a0\u3002<\/p>\n
MediaElement<\/strong>\u7684\u672a\u6765<\/strong><\/h5>\n
\u9996\u5148\uff0c\u6211\u8981\u975e\u5e38\u611f\u8c22\u793e\u533a\u6210\u5458\uff0c\u4ed6\u4eec\u4e0d\u4ec5\u5e2e\u52a9\u5c06\u6b64\u63a7\u4ef6\u653e\u5165 .NET MAUI \u793e\u533a\u5de5\u5177\u5305\u4e2d\uff0c\u800c\u4e14\u8fd8\u5e2e\u52a9\u6211\u4eec\u6784\u5efa\u5176\u4ed6\u529f\u80fd\u3002\u5982\u679c\u60a8\u8fd8\u6ca1\u6709\u62c9\u53d6\u8fc7\u8fd9\u4e2a\u63a7\u4ef6\uff0c\u60a8\u53ef\u4ee5\u8bd5\u8bd5\u3002<\/p>\n
\u5728\u8fd9\u4e2a\u521d\u59cb\u7248\u672c\u4e2d\uff0c\u6211\u4eec\u6ce8\u91cd\u6838\u5fc3\u529f\u80fd\uff0c\u4e5f\u91cd\u89c6\u4fdd\u8bc1\u5176\u7684\u53ef\u9760\u6027\u3002\u7136\u800c\u4eca\u540e\u6211\u4eec\u53ef\u4ee5\u5f00\u59cb\u6dfb\u52a0\u5404\u79cd\u4fbf\u5229\u7528\u6237\u7684\u529f\u80fd\uff01<\/p>\n
\u6211\u4eec\u5e38\u542c\u5230\u7684\u4e00\u4e2a\u7528\u6237\u5fc3\u58f0\u662f\u5e0c\u671b\u5e94\u7528\u80fd\u652f\u6301\u5168\u5c4f\u89c6\u9891\u64ad\u653e\u3002\u6211\u4eec\u542c\u5230\u4e86\u4f60\u4eec\u7684\u5fc3\u58f0\uff01\u7136\u800c\uff0c\u5f88\u53ef\u60dc\uff0c\u8981\u5b9e\u73b0\u8fd9\u70b9\u5e76\u4e0d\u50cf\u8868\u9762\u770b\u8d77\u6765\u90a3\u4e48\u7b80\u5355\u3002\u5728\u5de5\u5177\u5305\u5b58\u50a8\u5e93\u9875\u9762\u4e0a\u6709\u4e00\u4e2a\u76f8\u5173\u8bdd\u9898\u8ba8\u8bbadiscussion<\/a>\uff0c\u60a8\u53ef\u4ee5\u968f\u65f6\u53d1\u8868\u60a8\u7684\u610f\u89c1\uff01<\/p>\n
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