{"id":107847,"date":"2026-09-20T12:24:55","date_gmt":"2026-09-20T04:24:55","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/107847.html"},"modified":"2026-09-20T12:24:55","modified_gmt":"2026-09-20T04:24:55","slug":"harmonyos-7-avscreencapture-%e7%9a%84%e9%9f%b3%e8%a7%86%e9%a2%91%e9%87%87%e9%9b%86%e4%b8%8e%e8%b5%84%e6%ba%90%e7%94%9f%e5%91%bd%e5%91%a8%e6%9c%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/107847.html","title":{"rendered":"HarmonyOS 7 AVScreenCapture \u7684\u97f3\u89c6\u9891\u91c7\u96c6\u4e0e\u8d44\u6e90\u751f\u547d\u5468\u671f"},"content":{"rendered":"<p>\u70b9\u4e86\u505c\u6b62\u5f55\u5c4f&#xff0c;\u7ed3\u679c\u97f3\u89c6\u9891\u6570\u636e\u8fd8\u5728\u540e\u53f0\u6d41\u2014\u2014\u8fd9\u5c31\u662f\u53ea stop \u4e0d release \u7684\u4ee3\u4ef7\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260920042452-6aaf601405fa9.jpg\" alt=\"\u6587\u7ae0\u5c01\u9762\" \/><\/p>\n<p>\u505a\u5f55\u5c4f\u529f\u80fd\u7684\u65f6\u5019&#xff0c;\u6700\u5f00\u59cb\u601d\u8def\u5f88\u7b80\u5355&#xff1a;\u521b\u5efa\u4e2a\u91c7\u96c6\u5b9e\u4f8b&#xff0c;\u70b9\u5f00\u59cb\u5c31 start&#xff0c;\u70b9\u505c\u6b62\u5c31 stop\u3002\u5b8c\u4e8b\u4e86\u3002<\/p>\n<p>\u8dd1\u4e86\u4e00\u6bb5\u65f6\u95f4\u53d1\u73b0\u95ee\u9898&#xff1a;\u5f55\u5c4f\u505c\u4e86\u4e4b\u540e&#xff0c;\u5185\u5b58\u4e00\u76f4\u6da8&#xff0c;CPU \u4e5f\u4e0b\u4e0d\u6765\u3002\u7528\u6237\u9000\u51fa\u9875\u9762\u4e4b\u540e\u66f4\u79bb\u8c31&#xff0c;\u5f55\u5c4f\u8fdb\u7a0b\u8fd8\u5728\u540e\u53f0\u8dd1\u7740&#xff0c;\u6444\u50cf\u5934\u548c\u9ea6\u514b\u98ce\u7684\u6307\u793a\u706f\u4e00\u76f4\u4eae\u7740\u3002<\/p>\n<p>\u8fd9\u65f6\u5019\u624d\u610f\u8bc6\u5230&#xff1a;\u5f55\u5c4f\u4e0d\u662f\u70b9\u4e00\u4e0b start\/stop \u5c31\u5b8c\u4e8b\u7684&#xff0c;\u5b83\u80cc\u540e\u662f\u4e00\u6574\u6761\u6570\u636e\u91c7\u96c6\u7ba1\u7ebf&#xff0c;\u6bcf\u4e00\u73af\u90fd\u8981\u6b63\u786e\u91ca\u653e\u3002<\/p>\n<h3>\u4e00\u3001\u5f55\u5c4f\u7684\u6570\u636e\u6d41\u5411\u662f\u4ec0\u4e48\u6837\u7684<\/h3>\n<p>\u5148\u628a\u6574\u6761\u7ba1\u7ebf\u7406\u6e05\u695a&#xff1a;<\/p>\n<p>\u5c4f\u5e55\u753b\u9762 \u2192 \u89c6\u9891\u6e90<br \/>\n\u7cfb\u7edf\u58f0\u97f3 \u2192 \u97f3\u9891\u6e90<br \/>\n\u9ea6\u514b\u98ce\u58f0\u97f3 \u2192 \u97f3\u9891\u6e90<br \/>\n  \u2193<br \/>\nAVScreenCapture \u5b9e\u4f8b<br \/>\n  \u2193<br \/>\nSurface&#xff08;\u89c6\u9891\u8f93\u51fa&#xff09;<br \/>\n  \u2193<br \/>\nBuffer&#xff08;\u6570\u636e\u56de\u8c03&#xff09;<br \/>\n  \u2193<br \/>\n\u4f60\u7684\u5e94\u7528\u5904\u7406<\/p>\n<p>\u53ef\u4ee5\u628a\u6574\u4e2a\u5f55\u5c4f\u60f3\u6210\u4e00\u6761\u6d41\u6c34\u7ebf&#xff1a;<\/p>\n<ul>\n<li>\u89c6\u9891\u6e90\u8d1f\u8d23\u62ff\u5c4f\u5e55\u753b\u9762&#xff1b;<\/li>\n<li>\u97f3\u9891\u6e90\u8d1f\u8d23\u62ff\u7cfb\u7edf\u58f0\u97f3\u548c\u9ea6\u514b\u98ce\u58f0\u97f3&#xff1b;<\/li>\n<li>AVScreenCapture \u662f\u603b\u8c03\u5ea6&#xff1b;<\/li>\n<li>Surface \u662f\u89c6\u9891\u7684\u8f93\u51fa\u901a\u9053&#xff1b;<\/li>\n<li>Buffer \u662f\u6570\u636e\u56de\u8c03&#xff0c;\u628a\u539f\u59cb\u6570\u636e\u4f20\u7ed9\u4f60\u3002<\/li>\n<\/ul>\n<p>\u6bcf\u4e00\u73af\u90fd\u6709\u81ea\u5df1\u7684\u8d44\u6e90&#xff0c;stop \u4e86\u4e0d\u4ee3\u8868\u8d44\u6e90\u5c31\u91ca\u653e\u4e86\u3002<\/p>\n<h3>\u4e8c\u3001\u53ea stop \u4e0d release \u7684\u95ee\u9898<\/h3>\n<p>\u6700\u5f00\u59cb\u5199\u7684\u4ee3\u7801\u662f\u8fd9\u6837\u7684&#xff1a;<\/p>\n<p>capture<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ &#8230; \u5f55\u5c4f\u4e2d &#8230;<\/span><br \/>\ncapture<span class=\"token punctuation\">.<\/span><span class=\"token function\">stop<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u70b9\u4e86\u505c\u6b62&#xff0c;\u786e\u5b9e\u753b\u9762\u4e0d\u5f55\u4e86&#xff0c;\u58f0\u97f3\u4e5f\u6ca1\u4e86\u3002\u4f46\u662f\u540e\u53f0\u8d44\u6e90\u8fd8\u5728&#xff1a;<\/p>\n<ul>\n<li>Surface \u8fd8\u5360\u7740&#xff1b;<\/li>\n<li>Buffer \u56de\u8c03\u8fd8\u5728\u6ce8\u518c&#xff1b;<\/li>\n<li>\u97f3\u9891\u91c7\u96c6\u8fd8\u6ca1\u5b8c\u5168\u505c&#xff1b;<\/li>\n<li>\u5b9e\u4f8b\u672c\u8eab\u4e5f\u6ca1\u91ca\u653e\u3002<\/li>\n<\/ul>\n<p>\u8dd1\u51e0\u6b21 start\/stop \u4e4b\u540e&#xff0c;\u5185\u5b58\u6da8\u4e0a\u53bb\u4e86&#xff0c;CPU \u4e5f\u964d\u4e0d\u4e0b\u6765\u3002\u8fd9\u5c31\u662f\u53ea stop \u4e0d release \u7684\u540e\u679c\u3002<\/p>\n<p>\u6b63\u786e\u7684\u505a\u6cd5\u662f&#xff1a;stop \u4e4b\u540e&#xff0c;\u8981\u628a\u6240\u6709\u8d44\u6e90\u90fd\u91ca\u653e\u6389&#xff0c;\u5305\u62ec Surface\u3001\u56de\u8c03\u3001\u5b9e\u4f8b\u672c\u8eab\u3002<\/p>\n<h3>\u4e09\u3001\u97f3\u9891\u6e90\u914d\u7f6e\u4e3a\u4ec0\u4e48\u5bb9\u6613\u4e71<\/h3>\n<p>\u5f55\u5c4f\u7684\u97f3\u9891\u6e90\u6709\u597d\u51e0\u79cd&#xff1a;<\/p>\n<table>\n<tr>\u97f3\u9891\u6e90\u91c7\u96c6\u5185\u5bb9<\/tr>\n<tbody>\n<tr>\n<td>\u7cfb\u7edf\u58f0\u97f3<\/td>\n<td>\u8bbe\u5907\u64ad\u653e\u7684\u58f0\u97f3<\/td>\n<\/tr>\n<tr>\n<td>\u9ea6\u514b\u98ce\u58f0\u97f3<\/td>\n<td>\u9ea6\u514b\u98ce\u8f93\u5165<\/td>\n<\/tr>\n<tr>\n<td>\u6df7\u5408\u58f0\u97f3<\/td>\n<td>\u7cfb\u7edf &#043; \u9ea6\u514b\u98ce<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5f88\u591a\u4eba\u914d\u7f6e\u7684\u65f6\u5019\u641e\u4e0d\u6e05\u695a&#xff0c;\u8981\u4e48\u53ea\u5f55\u4e86\u7cfb\u7edf\u58f0\u97f3\u6ca1\u5f55\u9ea6\u514b\u98ce&#xff0c;\u8981\u4e48\u4e24\u4e2a\u90fd\u5f55\u4e86\u4f46\u6df7\u97f3\u6bd4\u4f8b\u4e0d\u5bf9\u3002<\/p>\n<p>\u8fd8\u6709\u4e2a\u5751&#xff1a;\u97f3\u9891\u6e90\u548c\u89c6\u9891\u6e90\u662f\u5206\u5f00\u914d\u7f6e\u7684\u3002\u4f60\u8981\u5f55\u7cfb\u7edf\u58f0\u97f3&#xff0c;\u5c31\u8981\u5355\u72ec\u914d\u7f6e\u97f3\u9891\u6e90&#xff1b;\u8981\u5f55\u753b\u9762&#xff0c;\u5c31\u8981\u5355\u72ec\u914d\u7f6e\u89c6\u9891\u6e90\u3002\u4e0d\u662f\u9009\u4e00\u4e2a&#034;\u5f55\u5c4f&#034;\u5c31\u5168\u5e2e\u4f60\u641e\u5b9a\u4e86\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260920042453-6aaf60151a320.jpg\" alt=\"\u4e1a\u52a1\u6d41\u7a0b\u56fe\" \/><\/p>\n<h3>\u56db\u3001Surface \u548c Buffer \u7684\u5173\u7cfb<\/h3>\n<p>\u89c6\u9891\u8f93\u51fa\u6709\u4e24\u79cd\u65b9\u5f0f&#xff1a;Surface \u6a21\u5f0f\u548c Buffer \u6a21\u5f0f\u3002<\/p>\n<table>\n<tr>\u6a21\u5f0f\u6570\u636e\u6d41\u5411\u9002\u7528\u573a\u666f<\/tr>\n<tbody>\n<tr>\n<td>Surface \u6a21\u5f0f<\/td>\n<td>\u753b\u9762\u76f4\u63a5\u9001 Surface&#xff0c;\u4e0d\u7ecf\u8fc7\u5e94\u7528<\/td>\n<td>\u5b9e\u65f6\u9884\u89c8\u3001\u5feb\u901f\u7f16\u7801<\/td>\n<\/tr>\n<tr>\n<td>Buffer \u6a21\u5f0f<\/td>\n<td>\u6bcf\u5e27\u6570\u636e\u56de\u8c03\u7ed9\u5e94\u7528<\/td>\n<td>\u81ea\u5b9a\u4e49\u5904\u7406\u3001\u540e\u671f\u7f16\u7801<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e24\u79cd\u6a21\u5f0f\u4e0d\u8981\u641e\u6df7\u4e86\u3002\u5982\u679c\u4f60\u8981\u5b9e\u65f6\u9884\u89c8\u5f55\u5c4f\u5185\u5bb9&#xff0c;\u7528 Surface \u6a21\u5f0f&#xff1b;\u5982\u679c\u4f60\u8981\u62ff\u5230\u6bcf\u5e27\u6570\u636e\u81ea\u5df1\u5904\u7406&#xff0c;\u7528 Buffer \u6a21\u5f0f\u3002<\/p>\n<p>Buffer \u6a21\u5f0f\u8fd8\u6709\u4e2a\u5751&#xff1a;\u6d88\u8d39\u4e0d\u53ca\u65f6\u3002\u6bcf\u5e27\u6570\u636e\u90fd\u56de\u8c03\u7ed9\u4f60&#xff0c;\u5982\u679c\u4f60\u5904\u7406\u5f97\u6162\u4e86&#xff0c;Buffer \u5c31\u5806\u5728\u90a3\u91cc&#xff0c;\u5185\u5b58\u5c31\u6da8\u4e0a\u53bb\u4e86\u3002\u4e00\u5b9a\u8981\u53ca\u65f6\u6d88\u8d39&#xff0c;\u4e0d\u8981\u5806\u7740\u3002<\/p>\n<h3>\u4e94\u3001\u524d\u540e\u53f0\u5207\u6362\u7684\u72b6\u6001\u5904\u7406<\/h3>\n<p>\u5f55\u5c4f\u7684\u65f6\u5019&#xff0c;\u7528\u6237\u5207\u5230\u540e\u53f0\u4e86\u600e\u4e48\u529e&#xff1f;<\/p>\n<p>\u8fd9\u4e2a\u5f88\u591a\u4eba\u6ca1\u5904\u7406\u3002\u7ed3\u679c\u5c31\u662f&#xff1a;\u7528\u6237\u5207\u5230\u540e\u53f0\u4e86&#xff0c;\u5f55\u5c4f\u8fd8\u5728\u8dd1&#xff1b;\u6216\u8005\u5207\u56de\u6765\u4e4b\u540e&#xff0c;\u5f55\u5c4f\u5361\u4f4f\u4e86&#xff0c;\u753b\u9762\u4e0d\u52a8\u4e86\u3002<\/p>\n<p>\u6b63\u786e\u7684\u505a\u6cd5\u662f&#xff1a;<\/p>\n<ul>\n<li>\u5207\u5230\u540e\u53f0\u7684\u65f6\u5019&#xff0c;\u6839\u636e\u4e1a\u52a1\u51b3\u5b9a\u662f\u7ee7\u7eed\u5f55\u8fd8\u662f\u6682\u505c&#xff1b;<\/li>\n<li>\u5207\u56de\u6765\u7684\u65f6\u5019&#xff0c;\u8981\u68c0\u67e5\u5f55\u5c4f\u72b6\u6001\u662f\u4e0d\u662f\u6b63\u5e38&#xff1b;<\/li>\n<li>\u4e0d\u80fd\u5047\u8bbe\u5207\u56de\u6765\u4e4b\u540e\u4e00\u5207\u90fd\u6b63\u5e38\u3002<\/li>\n<\/ul>\n<p>\u8fd8\u6709\u4e2a\u60c5\u51b5&#xff1a;\u7cfb\u7edf\u6743\u9650\u5f39\u7a97\u3001\u6765\u7535\u3001\u5176\u4ed6\u5e94\u7528\u6253\u65ad\u5f55\u5c4f&#xff0c;\u8fd9\u65f6\u5019\u5f55\u5c4f\u4f1a\u88ab\u5f02\u5e38\u505c\u6b62\u3002\u4f60\u8981\u76d1\u542c\u505c\u6b62\u4e8b\u4ef6&#xff0c;\u53ca\u65f6\u66f4\u65b0 UI&#xff0c;\u4e0d\u8981\u8ba9\u7528\u6237\u4ee5\u4e3a\u8fd8\u5728\u5f55\u3002<\/p>\n<h3>\u516d\u3001\u5b8c\u6574\u7684\u751f\u547d\u5468\u671f<\/h3>\n<p>\u628a\u6b63\u786e\u7684\u751f\u547d\u5468\u671f\u7406\u4e00\u904d&#xff1a;<\/p>\n<table>\n<tr>\u9636\u6bb5\u64cd\u4f5c<\/tr>\n<tbody>\n<tr>\n<td>\u521d\u59cb\u5316<\/td>\n<td>\u521b\u5efa AVScreenCapture \u5b9e\u4f8b<\/td>\n<\/tr>\n<tr>\n<td>\u914d\u7f6e<\/td>\n<td>\u8bbe\u7f6e\u89c6\u9891\u6e90\u3001\u97f3\u9891\u6e90\u3001\u5206\u8fa8\u7387<\/td>\n<\/tr>\n<tr>\n<td>\u51c6\u5907<\/td>\n<td>\u914d\u7f6e Surface \/ Buffer \u56de\u8c03<\/td>\n<\/tr>\n<tr>\n<td>\u542f\u52a8<\/td>\n<td>start()<\/td>\n<\/tr>\n<tr>\n<td>\u8fd0\u884c<\/td>\n<td>\u6570\u636e\u6b63\u5e38\u6d41\u8fc7\u6765<\/td>\n<\/tr>\n<tr>\n<td>\u505c\u6b62<\/td>\n<td>stop()<\/td>\n<\/tr>\n<tr>\n<td>\u91ca\u653e<\/td>\n<td>\u91ca\u653e Surface\u3001\u91ca\u653e\u56de\u8c03\u3001release() 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