{"id":190891,"date":"2023-03-03T10:08:57","date_gmt":"2023-03-03T02:08:57","guid":{"rendered":"https:\/\/www.idc.net\/help\/190891\/"},"modified":"2023-03-03T10:08:57","modified_gmt":"2023-03-03T02:08:57","slug":"%e5%90%8e%e6%b5%aa%e4%ba%91ios%e6%95%99%e7%a8%8b%ef%bc%9a%e5%8a%a0%e5%85%a5%e5%92%8c%e7%ae%a1%e7%90%86%e5%85%b1%e4%ba%ab%e6%b4%bb%e5%8a%a8","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/190891\/","title":{"rendered":"\u540e\u6d6a\u4e91IOS\u6559\u7a0b\uff1a\u52a0\u5165\u548c\u7ba1\u7406\u5171\u4eab\u6d3b\u52a8"},"content":{"rendered":"<h2> \u6982\u89c8 <\/h2>\n<p> \u4efb\u4f55\u6d3b\u8dc3\u7684 FaceTime \u901a\u8bdd\u7684\u53c2\u4e0e\u8005\u90fd\u53ef\u4ee5\u542f\u52a8\u4e00\u9879\u6d3b\u52a8\uff0c\u5e76\u4e0e\u7fa4\u7ec4\u5171\u4eab\u8be5\u6d3b\u52a8\u3002\u7cfb\u7edf\u5411\u901a\u8bdd\u4e2d\u7684\u5176\u4ed6\u53c2\u4e0e\u8005\u663e\u793a\u5171\u4eab\u6d3b\u52a8\uff0c\u5e76\u9080\u8bf7\u4ed6\u4eec\u52a0\u5165\u3002\u5f53\u53c2\u4e0e\u8005\u63a5\u53d7\u9080\u8bf7\u65f6\uff0c\u7cfb\u7edf\u5c06\uff1a <\/p>\n<ul>\n<li>\n<p> \u6839\u636e\u9700\u8981\u542f\u52a8\u4f60\u7684 App\u3002 <\/p>\n<\/li>\n<li>\n<p> \u4e3a\u9009\u5b9a\u7684\u6d3b\u52a8\u521b\u5efa <code>GroupSession<\/code> (\u82f1\u6587) \u5bf9\u8c61\u3002 <\/p>\n<\/li>\n<li>\n<p> \u5c06\u4f1a\u8bdd\u901a\u8fc7\u5f02\u6b65\u65b9\u5f0f\u4f20\u9012\u5230\u4f60\u7684 App\u3002 <\/p>\n<\/li>\n<\/ul>\n<p> \u5982\u679c\u53c2\u4e0e\u8005\u66f4\u6539\u4e86\u4f1a\u8bdd\u7684\u7279\u5b9a\u6d3b\u52a8\uff0c\u7cfb\u7edf\u4f1a\u5c06\u66f4\u65b0\u7684\u4f1a\u8bdd\u901a\u8fc7\u5f02\u6b65\u65b9\u5f0f\u4f20\u9012\u5230\u4f60\u7684 App\u3002\u4f8b\u5982\uff0c\u53c2\u4e0e\u8005\u53ef\u80fd\u4f1a\u9009\u62e9\u89c2\u770b\u4e0d\u540c\u7684\u5355\u96c6\u3002\u5728\u65b0\u4f1a\u8bdd\u548c\u66f4\u65b0\u4f1a\u8bdd\u4e2d\u4e3a\u6240\u9009\u5185\u5bb9\u914d\u7f6e App \u7684 UI\u3002 <\/p>\n<p> \u6709\u5173\u5982\u4f55\u5e7f\u64ad App \u6240\u652f\u6301\u6d3b\u52a8\u7684\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u201c\u9080\u8bf7\u53c2\u4e0e\u8005\u5171\u4eab\u6d3b\u52a8\u201d\u3002 <\/p>\n<h3> \u901a\u8fc7\u5f02\u6b65\u65b9\u5f0f\u63a5\u6536\u4f1a\u8bdd\u5bf9\u8c61 <\/h3>\n<p> \u7cfb\u7edf\u901a\u8fc7\u81ea\u5b9a <code>GroupActivity<\/code> (\u82f1\u6587) \u7684 <code>sessions()<\/code> (\u82f1\u6587) \u65b9\u6cd5\u5c06 <code>GroupSession<\/code> (\u82f1\u6587) \u5bf9\u8c61\u901a\u8fc7\u5f02\u6b65\u65b9\u5f0f\u4f20\u9012\u5230\u4f60\u7684 App\u3002\u6b64\u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e2a <code>AsyncSequence<\/code> \u7c7b\u578b\uff0c\u8be5\u7c7b\u578b\u901a\u8fc7\u5f02\u6b65\u65b9\u5f0f\u4e00\u6b21\u8fd4\u56de\u4e00\u4e2a\u4f1a\u8bdd\u3002\u5f53\u53c2\u4e0e\u8005\u66f4\u65b0\u5f53\u524d\u4f1a\u8bdd\u65f6\uff0c\u5e8f\u5217\u4f1a\u5c06\u8be5\u4f1a\u8bdd\u6dfb\u52a0\u4e3a\u4e0b\u4e00\u4e2a\u5143\u7d20\u3002\u8981\u68c0\u7d22\u6bcf\u4e2a\u65b0\u4f1a\u8bdd\uff0c\u9700\u914d\u7f6e\u4e00\u4e2a\u5f02\u6b65\u4efb\u52a1\u4ee5\u5728 <code>for...in<\/code> \u5faa\u73af\u4e2d\u8fed\u4ee3\u5e8f\u5217\u3002 <\/p>\n<p> \u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728 SwiftUI \u89c6\u56fe\u4e2d\u63a5\u6536\u4f1a\u8bdd\u3002<code>.task<\/code> \u4fee\u9970\u7b26\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5f02\u6b65\u4efb\u52a1\uff0c\u8be5\u4efb\u52a1\u4f1a\u8fed\u4ee3\u6d3b\u52a8\u7684\u4f1a\u8bdd\u3002\u5f53\u65b0\u4f1a\u8bdd\u5230\u8fbe\u65f6\uff0c\u4efb\u52a1\u4f1a\u66f4\u65b0\u4f1a\u8bdd\u72b6\u6001\u53d8\u91cf\uff0c\u4ece\u800c\u89e6\u53d1\u89c6\u56fe\u66f4\u65b0\u3002 <\/p>\n<pre><code><span><span><\/span> <span><span>struct<\/span> <span>DrawTogetherView<\/span>: <span>View<\/span> {<\/span><\/span><span><span><\/span> <span> <span>@State<\/span> <span>var<\/span> session: <span>GroupSession<\/span>&lt;<span>DrawTogether<\/span>&gt;?<\/span><\/span><span><span><\/span> <span> <span>var<\/span> body: <span>some<\/span> <span>View<\/span> {<\/span><\/span><span><span><\/span> <span> <span>Text<\/span>(<span>\"Draw Together\"<\/span>)<\/span><\/span><span><span><\/span> <span> .task {<\/span><\/span><span><span><\/span> <span> <span>\/\/ Receive the new session asynchronously.<\/span><\/span><\/span><span><span><\/span> <span> <span>for<\/span> <span>await<\/span> drawingSession <span>in<\/span> <span>DrawTogether<\/span>.sessions() {<\/span><\/span><span><span><\/span> <span> session <span>=<\/span> drawingSession<\/span><\/span><span><span><\/span> <span> }<\/span><\/span><span><span><\/span> <span> }<\/span><\/span><span><span><\/span> <span> .fullScreenCover(item: <span>$session<\/span>) { session <span>in<\/span><\/span><\/span><span><span><\/span> <span> <span>DrawingView<\/span>(session: session)<\/span><\/span><span><span><\/span> <span> }<\/span><\/span><span><span><\/span> <span> }<\/span><\/span><span><span><\/span> <span>}<\/span><\/span><\/code>\n<\/pre>\n<p> \u5982\u679c\u4f60\u4e0d\u4f7f\u7528 SwiftUI\uff0c\u53ef\u4ee5\u4f7f\u7528\u72ec\u7acb <code>async<\/code> \u5757\u6765\u542f\u52a8\u5f02\u6b65\u4efb\u52a1\uff0c\u5982\u4e0b\u65b9\u793a\u4f8b\u6240\u793a\u3002\u5f53\u4f1a\u8bdd\u5230\u8fbe\u65f6\uff0c\u6267\u884c\u4ee3\u7801\u6765\u542f\u52a8\u6216\u66f4\u65b0\u76f8\u5173\u6d3b\u52a8\u3002 <\/p>\n<pre><code><span><span><\/span> <span><span>\/\/ Process an asynchronously delivered session.<\/span><\/span><\/span><span><span><\/span> <span><span>async<\/span> {<\/span><\/span><span><span><\/span> <span> <span>for<\/span> <span>await<\/span> drawingSession <span>in<\/span> <span>DrawTogether<\/span>.sessions() {<\/span><\/span><span><span><\/span> <span> <span>\/\/ Update the app for the new session.<\/span><\/span><\/span><span><span><\/span> <span> <span>self<\/span>.updateActivity(session: drawingSession)<\/span><\/span><span><span><\/span> <span> }<\/span><\/span><span><span><\/span> <span>}<\/span><\/span><\/code>\n<\/pre>\n<h3> \u51c6\u5907\u4f60\u7684 App \u7684 UI <\/h3>\n<p> \u5f53\u4f60\u6536\u5230\u65b0\u7684 <code>GroupSession<\/code> (\u82f1\u6587) \u5bf9\u8c61\u65f6\uff0c\u7acb\u5373\u9488\u5bf9\u8be5\u6d3b\u52a8\u914d\u7f6e App \u7684 UI\u3002\u53ea\u6709\u5f53\u7528\u6237\u8868\u793a\u5bf9\u8be5\u6d3b\u52a8\u611f\u5174\u8da3\u65f6\uff0c\u4f60\u7684 App \u624d\u4f1a\u6536\u5230\u4f1a\u8bdd\uff0c\u56e0\u6b64\u9700\u8981\u4f18\u5148\u5904\u7406\u8be5\u6d3b\u52a8\u3002\u6839\u636e\u9700\u8981\u9488\u5bf9\u65b0\u5185\u5bb9\u663e\u793a\u4e00\u4e2a\u7a97\u53e3\u6216\u89c6\u56fe\u63a7\u5236\u5668\uff0c\u6216\u8005\u66f4\u65b0 App \u7684\u73b0\u6709 UI \u4ee5\u4f53\u73b0\u4e0e\u4f1a\u8bdd\u76f8\u5173\u7684\u66f4\u6539\u3002 <\/p>\n<p> \u5728\u9488\u5bf9\u8be5\u6d3b\u52a8\u663e\u793a\u4efb\u4f55 UI \u4e4b\u524d\uff0c\u8bf7\u5bf9\u8be5\u6d3b\u52a8\u548c\u4f1a\u8bdd\u8fdb\u884c\u4efb\u4f55\u5fc5\u8981\u7684\u9a8c\u8bc1\u3002\u5982\u679c\u4f60\u7684 App \u9700\u8981\u53c2\u4e0e\u8005\u4e3a\u5185\u5bb9\u4ed8\u8d39\u3001\u63d0\u4f9b\u767b\u5f55\u51ed\u8bc1\u3001\u4e0b\u8f7d\u5185\u5bb9\u6216\u6267\u884c\u5176\u4ed6\u4efb\u52a1\uff0c\u8bf7\u9996\u5148\u663e\u793a\u8fd9\u4e9b\u4efb\u52a1\u7684\u76f8\u5173 UI\u3002\u8fd9\u4e9b\u4efb\u52a1\u6210\u529f\u5b8c\u6210\u540e\uff0c\u7acb\u5373\u6307\u5f15\u53c2\u4e0e\u8005\u8f6c\u5411\u4f60\u7684\u6d3b\u52a8 UI\uff0c\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u52a0\u5165\u4f1a\u8bdd\u7684\u5ef6\u8fdf\u3002 <\/p>\n<h3> \u52a0\u5165\u7fa4\u7ec4\u4f1a\u8bdd\u4ee5\u5f00\u59cb\u540c\u6b65\u5185\u5bb9 <\/h3>\n<p> \u53ea\u6709\u5728\u786e\u8ba4\u4f60\u7684 App \u5df2\u51c6\u5907\u597d\u5f00\u59cb\u6d3b\u52a8\u5e76\u5f00\u59cb\u4e0e\u5176\u4ed6\u53c2\u4e0e\u8005\u8bbe\u5907\u540c\u6b65\u5185\u5bb9\u540e\uff0c\u624d\u80fd\u52a0\u5165\u7fa4\u7ec4\u4f1a\u8bdd\u3002\u65b0\u7684 <code>GroupSession<\/code> (\u82f1\u6587) \u5bf9\u8c61\u4e0d\u4f1a\u7acb\u5373\u4e0e\u7fa4\u7ec4\u540c\u6b65\u6570\u636e\uff0c\u800c\u662f\u4f1a\u4ee5 <code>GroupSession.State.waiting<\/code> (\u82f1\u6587) \u72b6\u6001\u542f\u52a8\uff0c\u4f60\u5fc5\u987b\u663e\u5f0f\u8c03\u7528\u5176 <code>join()<\/code> (\u82f1\u6587) \u65b9\u6cd5\uff0c\u8ba9\u7cfb\u7edf\u77e5\u9053\u4f60\u7684 App \u5df2\u51c6\u5907\u597d\u5f00\u59cb\u76f8\u5173\u6d3b\u52a8\u3002\u5982\u679c\u4f60\u5bf9 <code>join()<\/code> (\u82f1\u6587) \u7684\u8c03\u7528\u6210\u529f\uff0c\u7cfb\u7edf\u4f1a\u5c06\u4f1a\u8bdd\u66f4\u6539\u4e3a <code>GroupSession.State.joined<\/code> (\u82f1\u6587) \u72b6\u6001\uff0c\u5e76\u5f00\u59cb\u8bbe\u5907\u4e4b\u95f4\u7684\u4fe1\u606f\u6d41\u52a8\u3002 <\/p>\n<p> \u8c03\u7528 <code>join()<\/code> (\u82f1\u6587) \u65b9\u6cd5\u7684\u6700\u4f73\u65f6\u95f4\u662f\u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u4e0e\u6d3b\u52a8\u76f8\u5173\u7684 UI \u65f6\u3002\u786e\u4fdd\u5bf9\u4f60\u7684 App \u8fdb\u884c\u9002\u5f53\u914d\u7f6e\uff0c\u4ee5\u4fbf\u5728 UI \u51fa\u73b0\u65f6\u53ef\u4ee5\u542f\u52a8\u6d3b\u52a8\u3002\u91c7\u53d6\u4efb\u4f55\u5fc5\u8981\u7684\u989d\u5916\u6b65\u9aa4\uff0c\u63d0\u524d\u4e3a\u6d3b\u52a8\u505a\u597d\u51c6\u5907\u3002\u4f8b\u5982\uff0c\u5728\u663e\u793a UI \u4e4b\u524d\uff0c\u8bf7\u9a8c\u8bc1\u7528\u6237\u662f\u5426\u62e5\u6709\u4efb\u4f55\u5a92\u4f53\u5185\u5bb9\u7684\u6570\u5b57\u6743\u9650\uff0c\u5e76\u63d0\u793a\u7528\u6237\u63d0\u4f9b\u5fc5\u8981\u7684\u51ed\u8bc1\u3002 <\/p>\n<p> \u52a0\u5165\u4f1a\u8bdd\u540e\uff0c\u5c06 <code>GroupSession<\/code> (\u82f1\u6587) \u5bf9\u8c61\u4f20\u9012\u7ed9\u9700\u8981\u540c\u6b65\u7684\u4efb\u4f55\u5176\u4ed6\u5bf9\u8c61\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u5c06\u4f1a\u8bdd\u4f20\u9012\u7ed9 <code>AVPlaybackCoordinator<\/code> (\u82f1\u6587) \u5bf9\u8c61\u6765\u540c\u6b65\u7535\u5f71\u64ad\u653e\u3002 <\/p>\n<h3> \u9000\u51fa\u6d3b\u52a8 <\/h3>\n<p> \u52a0\u5165\u4f1a\u8bdd\u540e\uff0c\u4f60\u7684 App \u53ef\u4ee5\u901a\u8fc7\u8c03\u7528\u4f1a\u8bdd\u7684 <code>leave()<\/code> (\u82f1\u6587) \u65b9\u6cd5\u968f\u65f6\u9000\u51fa\u4f1a\u8bdd\u3002\u9000\u51fa\u4f1a\u8bdd\u53ef\u4ee5\u8ba9\u4f60\u5728\u4e0d\u5f71\u54cd\u5176\u4ed6\u7528\u6237\u7684\u60c5\u51b5\u4e0b\u5c06 App \u4e0e\u6d3b\u52a8\u5206\u79bb\u3002\u4f8b\u5982\uff0c\u9000\u51fa\u4f1a\u8bdd\u7684\u5a92\u4f53\u64ad\u653e App \u53ef\u4ee5\u5728\u672c\u5730\u505c\u6b62\u64ad\u653e\uff0c\u800c\u4e0d\u4f1a\u505c\u6b62\u7fa4\u7ec4\u4e2d\u5176\u4ed6\u6210\u5458\u7684\u64ad\u653e\u3002\u5f53\u4f60\u9000\u51fa\u7fa4\u7ec4\u65f6\uff0c\u7cfb\u7edf\u4f1a\u5c06\u4f60\u7684 App \u7684\u4f1a\u8bdd\u8fd4\u56de\u5230 <code>GroupSession.State.invalidated(reason:)<\/code> (\u82f1\u6587) 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