{"id":655,"date":"2025-10-14T01:37:21","date_gmt":"2025-10-14T01:37:21","guid":{"rendered":"https:\/\/boochlin.com\/?p=655"},"modified":"2025-11-12T12:19:03","modified_gmt":"2025-11-12T12:19:03","slug":"inline-noinline-crossinline%ef%bc%9a%e5%ad%98%e5%9c%a8%e5%8d%b3%e5%90%88%e7%90%86","status":"publish","type":"post","link":"https:\/\/boochlin.com\/?p=655","title":{"rendered":"inline, noinline, crossinline\uff1a\u5b58\u5728\u5373\u5408\u7406"},"content":{"rendered":"<p>\u8001\u6a23\u5b50\uff0c\u5b58\u5728\u5fc5\u5408\u7406\uff0c\u6709\u9019\u6a23\u7684 Keyword \uff0c\u90a3\u80af\u5b9a\u662f\u524d\u4eba\u6709\u904e\u4e0d\u53bb\u7684\u574e\uff0c\u6240\u4ee5\u624d\u8a2d\u8a08\u51fa\u9019\u500b\u8981\u60f3\u4e00\u60f3\u7684\u6982\u5ff5<\/p>\n<h4 class=\"wp-block-heading\">\u554f\u984c\uff1a\u512a\u96c5\u7684 Lambda\uff0c\u4e0d\u582a\u91cd\u8ca0\u7684 GC<\/h4>\n<p>Kotlin \u7684\u9ad8\u968e\u51fd\u6578\u8207 Lambda \u662f\u5049\u5927\u7684\u767c\u660e\uff0c\u5b83\u8b93\u6211\u5011\u7684\u7a0b\u5f0f\u78bc\u8b8a\u5f97\u7c21\u6f54\u3001\u53ef\u8b80\u6027\u66f4\u9ad8\u3002\u4f46\u9019\u5728\u8cc7\u6e90\u6709\u9650\u7684 Android \u88dd\u7f6e\u4e0a\uff0c\u662f\u6709\u8457\u8840\u6dcb\u6dcb\u7684\u4ee3\u50f9\u7684\u3002<\/p>\n<p><strong>\u75db\u9ede\uff1aLambda \u6703\u7522\u751f\u96b1\u6027\u7684\u7269\u4ef6\u958b\u92b7\u3002<\/strong><\/p>\n<p>\u6bcf\u4e00\u6bb5 Lambda <code>{...}<\/code>\uff0c\u5728\u5e95\u5c64\u90fd\u6703\u88ab\u7de8\u8b6f\u5668\u8b8a\u6210\u4e00\u500b\u65b0\u7684\u533f\u540d\u985e\u5225\u5be6\u4f8b\u3002\u9019\u610f\u5473\u8457\uff0c\u6bcf\u4e00\u6b21\u547c\u53eb\u4f7f\u7528 Lambda \u7684\u9ad8\u968e\u51fd\u6578\uff0c\u90fd\u6703\u5728\u8a18\u61b6\u9ad4\u4e2d <code>new<\/code> \u4e00\u500b\u65b0\u7269\u4ef6\u3002<\/p>\n<p>\u5982\u679c\u53ea\u662f\u6309\u9215\u9ede\u64ca\uff0c\u7121\u50b7\u5927\u96c5\u3002\u4f46\u60f3\u50cf\u4e00\u4e0b\uff0c\u82e5\u9019\u6bb5\u908f\u8f2f\u767c\u751f\u5728 RecyclerView \u7684 onBindViewHolder\uff0c\u6216\u662f\u4e00\u500b\u6bcf\u79d2\u66f4\u65b0 60 \u6b21\u7684\u52d5\u756b\u8ff4\u5708\u88e1\uff1f\u9019\u5c07\u77ac\u9593\u7522\u751f\u6d77\u91cf\u7684\u3001\u7a0d\u7e31\u5373\u901d\u7684\u77ed\u547d\u7269\u4ef6\uff0c\u8feb\u4f7f\u5783\u573e\u56de\u6536\uff08GC\uff09\u6a5f\u5236\u983b\u7e41\u555f\u52d5\uff0c\u760b\u72c2\u52a0\u73ed\u3002\u800c GC \u4e00\u65e6\u5de5\u4f5c\uff0c<\/p>\n<h4 class=\"wp-block-heading\">inline \u90a3\u5c31\u5225 new \u5566\uff0c\u76f4\u63a5\u628a\u7a0b\u5f0f\u78bc\u8cbc\u904e\u53bb<\/h4>\n<ul>\n<li><strong>\u554f\u984c\uff1a<\/strong> \u9ad8\u968e\u51fd\u6578\u8207 Lambda \u9020\u6210\u7684\u300c\u6548\u80fd\u958b\u92b7\u300d\u8207\u300c\u8a18\u61b6\u9ad4\u58d3\u529b\u300d\u3002<\/li>\n<li><strong>\u904b\u4f5c\uff1a<\/strong> \u7576\u4f60\u5c07\u4e00\u500b\u51fd\u6578\u6a19\u8a18\u70ba inline\uff0c\u4f60\u7b49\u65bc\u662f\u547d\u4ee4\u7de8\u8b6f\u5668\uff1a\u300c\u505c\u6b62\u5275\u5efa\u7269\u4ef6\uff01\u76f4\u63a5\u628a\u9019\u500b\u51fd\u6578\u7684\u7a0b\u5f0f\u78bc\uff0c\u9023\u540c\u50b3\u5165\u7684 Lambda \u7a0b\u5f0f\u78bc\uff0c\u50cf\u300e<strong>\u8907\u88fd\u8cbc\u4e0a<\/strong>\u300f\u4e00\u6a23\uff0c\u5b8c\u6574\u5730\u8cbc\u5230\u547c\u53eb\u5b83\u7684\u5730\u65b9\u3002\u300d<\/li>\n<li><strong>\u7d50\u679c\uff1a<\/strong> \u6c92\u6709\u4e86\u7269\u4ef6\u7684\u5efa\u7acb\uff0c\u6c92\u6709\u4e86\u51fd\u6578\u7684\u547c\u53eb\u6210\u672c\u3002\u7528\u589e\u52a0\u4e00\u9ede\u9ede APK \u9ad4\u7a4d\u7684\u4ee3\u50f9\uff0c\u63db\u4f86\u4e86\u57f7\u884c\u6642\u7684\u6975\u81f4\u6548\u80fd\u3002<\/li>\n<\/ul>\n<p>\u7136\u800c\uff0cinline\u5728\u89e3\u6c7a\u554f\u984c\u7684\u540c\u6642\uff0c\u4e5f\u5275\u9020\u4e86\u5169\u500b\u68d8\u624b\u7684\u526f\u4f5c\u7528\uff0c\u9019\u5c31\u9700\u8981\u53e6\u5916\u5169\u628a\u66f4\u7cbe\u5bc6\u7684\u5de5\u5177\u4f86\u8f14\u52a9\u3002<\/p>\n<h4 class=\"wp-block-heading\">\u4e09\u3001noinline\uff1a\u5728\u300c\u8907\u88fd\u8cbc\u4e0a\u300d\u4e2d\u4fdd\u7559\u4e00\u500b\u300c\u8d85\u9023\u7d50\u300d<\/h4>\n<ul>\n<li><strong>\u554f\u984c\uff1a<\/strong> \u7576\u51fd\u6578\u88ab inline \u5f8c\uff0c\u5176 Lambda \u53c3\u6578\u300c\u5931\u53bb\u7269\u4ef6\u7279\u6027\u300d\u7684\u554f\u984c\u3002<\/li>\n<li><strong><strong>\u904b\u4f5c<\/strong>\uff1a<\/strong> inline \u7684\u300c\u8907\u88fd\u8cbc\u4e0a\u300d\u7279\u6027\uff0c\u610f\u5473\u8457 Lambda \u4e0d\u518d\u662f\u4e00\u500b\u7368\u7acb\u7684\u7269\u4ef6\uff0c\u5b83\u88ab\u5206\u89e3\u6210\u4e86\u7a0b\u5f0f\u78bc\u7247\u6bb5\u3002\u9019\u5c0e\u81f4\u4f60\u7121\u6cd5\u5c07\u9019\u500b Lambda \u8ce6\u503c\u7d66\u4e00\u500b\u8b8a\u6578\uff0c\u4e5f\u7121\u6cd5\u518d\u5c07\u5b83\u50b3\u905e\u7d66\u5176\u4ed6\u9700\u8981\u7269\u4ef6\u7684\u51fd\u6578\u3002<\/li>\n<li><strong>\u89e3\u6c7a\uff1a<\/strong> noinline \u5c31\u50cf\u4e00\u500b\u4f8b\u5916\u6a19\u7c64\u3002\u5b83\u544a\u8a34\u7de8\u8b6f\u5668\uff1a\u300c\u9019\u500b inline \u51fd\u6578\u4e2d\u7684\u6240\u6709\u6771\u897f\u4f60\u7167\u5e38\u8cbc\u4e0a\uff0c\u4f46\u8acb\u552f\u7368\u653e\u904e\u9019\u500b\u6a19\u8a18\u4e86 noinline \u7684 Lambda\uff0c\u8b93\u5b83<strong>\u7dad\u6301\u7269\u4ef6\u7684\u539f\u8c8c<\/strong>\uff0c\u4ee5\u4fbf\u6211\u5f8c\u7e8c\u64cd\u4f5c\u3002\u300d<\/li>\n<\/ul>\n<h4 class=\"wp-block-heading\">\u56db\u3001crossinline\uff1a\u70ba\u300c\u8de8\u90e8\u9580\u4efb\u52d9\u300d\u7c3d\u4e0b\u4e00\u4efd\u300c\u5207\u7d50\u66f8\u300d<\/h4>\n<ul>\n<li><strong>\u554f\u984c\uff1a<\/strong> inline \u6240\u8ce6\u4e88\u7684\u300c\u975e\u5c40\u90e8\u63a7\u5236\u6b0a\u300d\uff0c\u5728\u4e0d\u5b89\u5168\u60c5\u5883\u4e0b\u53ef\u80fd\u9020\u6210\u7684\u300c\u908f\u8f2f\u6df7\u4e82\u300d\u3002<\/li>\n<li><strong>\u8aaa\u660e\uff1a<\/strong> inline \u8ce6\u4e88\u4e86 Lambda \u4e00\u500b\u5f37\u5927\u7684\u8d85\u80fd\u529b\u2014\u2014\u300c\u975e\u5c40\u90e8\u63a7\u5236\u300d\uff08non-local control\uff09\u3002\u6700\u5178\u578b\u7684\u5c31\u662f return\uff0c\u5728 Lambda \u5167\u90e8 return \u53ef\u4ee5\u76f4\u63a5\u7d50\u675f\u5916\u5c64\u7684\u6574\u500b\u51fd\u6578\u3002\u9019\u500b\u8d85\u80fd\u529b\u5728 Lambda \u88ab\u7acb\u5373\u57f7\u884c\u7684\u60c5\u6cc1\u4e0b\u5f88\u65b9\u4fbf\u3002\u4f46\u5982\u679c\u4f60\u628a\u9019\u500b Lambda \u50b3\u905e\u5230\u53e6\u4e00\u500b\u57f7\u884c\u4e0a\u4e0b\u6587\uff08\u6bd4\u5982\u53e6\u4e00\u500b\u57f7\u884c\u7dd2 Runnable\uff0c\u6216\u53e6\u4e00\u500b\u7269\u4ef6\uff09\u4e2d\u7a0d\u5f8c\u57f7\u884c\u5462\uff1f\u9019\u5c31\u597d\u50cf\u4f60\u6d3e\u4e86\u4e00\u500b\u52a9\u624b\u53bb\u300c\u9694\u58c1\u90e8\u9580\u300d\u8fa6\u4e8b\uff0c\u7d50\u679c\u4ed6\u537b\u5728\u9694\u58c1\u90e8\u9580\u76f4\u63a5\u6309\u4e0b\u4e86\u6309\u9215\uff0c\u628a\u4f60\u300c\u672c\u90e8\u9580\u300d\u7684\u6574\u500b\u5c08\u6848\u7d66\u7d42\u6b62 (return) \u6216\u66ab\u505c (break) \u4e86\u3002\u9019\u662f\u7d55\u5c0d\u4e0d\u5141\u8a31\u7684\u908f\u8f2f\u6df7\u4e82\u3002<\/li>\n<li><strong>\u89e3\u6c7a\uff1a<\/strong> crossinline \u5c31\u662f\u4f60\u8207\u9019\u500b Lambda \u7c3d\u8a02\u7684\u300c\u5207\u7d50\u66f8\u300d\u3002\u5b83\u5411\u7de8\u8b6f\u5668\u4fdd\u8b49\uff0c\u9019\u500b Lambda <strong>\u4e0d\u6703\u4f7f\u7528\u4efb\u4f55\u975e\u5c40\u90e8\u63a7\u5236\u6b0a<\/strong>\u3002\u5b83\u4f9d\u7136\u6703\u88ab\u5167\u806f\u4ee5\u7372\u53d6\u6548\u80fd\uff0c\u4f46\u5b83\u5167\u90e8\u7684 return, break, continue \u7b49\u6307\u4ee4\uff0c\u90fd\u4e0d\u80fd\u5f71\u97ff\u5230\u5916\u90e8\u51fd\u6578\u7684\u6d41\u7a0b\u3002\u9019\u5c31\u78ba\u4fdd\u4e86\u7a0b\u5f0f\u7684\u7a69\u5b9a\u6027\u8207\u53ef\u9810\u6e2c\u6027\u3002<\/li>\n<\/ul>\n<p><a href=\"https:\/\/rengwuxian.com\/kotlin-source-noinline-crossinline\/#:~:text=%E6%80%BB%E7%BB%93%20%20inline%20%E5%8F%AF%E4%BB%A5%E8%AE%A9%E4%BD%A0%E7%94%A8%E5%86%85%E8%81%94%E2%80%94%E2%80%94%E4%B9%9F%E5%B0%B1%E6%98%AF%E5%87%BD%E6%95%B0%E5%86%85%E5%AE%B9%E7%9B%B4%E6%8F%92%E5%88%B0%E8%B0%83%E7%94%A8%E5%A4%84%E2%80%94%E2%80%94%E7%9A%84%E6%96%B9%E5%BC%8F%E6%9D%A5%E4%BC%98%E5%8C%96%E4%BB%A3%E7%A0%81%E7%BB%93%E6%9E%84%EF%BC%8C%E4%BB%8E%E8%80%8C%E5%87%8F%E5%B0%91%E5%87%BD%E6%95%B0%E7%B1%BB%E5%9E%8B%E7%9A%84%E5%AF%B9%E8%B1%A1%E7%9A%84%E5%88%9B%E5%BB%BA%EF%BC%9B%20%20noinline%20%E6%98%AF%E5%B1%80%E9%83%A8%E5%85%B3%E6%8E%89%E8%BF%99%E4%B8%AA%E4%BC%98%E5%8C%96%EF%BC%8C%E6%9D%A5%E6%91%86%E8%84%B1inline%20%E5%B8%A6%E6%9D%A5%E7%9A%84%E3%80%8C%E4%B8%8D%E8%83%BD%E6%8A%8A%E5%87%BD%E6%95%B0%E7%B1%BB%E5%9E%8B%E7%9A%84%E5%8F%82%E6%95%B0%E5%BD%93%E5%AF%B9%E8%B1%A1%E4%BD%BF%E7%94%A8%E3%80%8D%E7%9A%84%E9%99%90%E5%88%B6%EF%BC%9B%20*%20crossinline%20%E6%98%AF%E5%B1%80%E9%83%A8%E5%8A%A0%E5%BC%BA%E8%BF%99%E4%B8%AA%E4%BC%98%E5%8C%96%EF%BC%8C%E8%AE%A9%E5%86%85%E8%81%94%E5%87%BD%E6%95%B0%E9%87%8C%E7%9A%84%E5%87%BD%E6%95%B0%E7%B1%BB%E5%9E%8B%E7%9A%84%E5%8F%82%E6%95%B0%E5%8F%AF%E4%BB%A5%E8%A2%AB%E5%BD%93%E5%81%9A%E5%AF%B9%E8%B1%A1%E4%BD%BF%E7%94%A8%E3%80%82\">Kotlin \u6e90\u7801\u91cc\u6210\u5428\u7684 noinline \u548c crossinline \u662f\u5e72\u561b\u7684\uff1f\u770b\u5b8c\u8fd9\u4e2a\u89c6\u9891\u4f60\u8f6c\u5934\u4e5f\u5199\u4e86\u4e00\u5428<\/a><\/p>\n<p>https:\/\/medium.com\/evan-android-note\/kotlin-%E7%9A%84-inline-noinline-crossline-function-8deceacc893d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8001\u6a23\u5b50\uff0c\u5b58\u5728\u5fc5\u5408\u7406\uff0c\u6709\u9019\u6a23\u7684 Keyword \uff0c\u90a3\u80af\u5b9a\u662f\u524d\u4eba\u6709\u904e\u4e0d\u53bb\u7684\u574e\uff0c\u6240\u4ee5\u624d\u8a2d\u8a08\u51fa\u9019\u500b\u8981\u60f3\u4e00\u60f3\u7684\u6982\u5ff5 \u554f\u984c\uff1a\u512a\u96c5\u7684 Lambda\uff0c\u4e0d\u582a\u91cd\u8ca0\u7684 GC Kotlin \u7684\u9ad8\u968e\u51fd\u6578\u8207 Lambda \u662f\u5049\u5927&#8230;<\/p>\n","protected":false},"author":1,"featured_media":840,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[81],"tags":[],"_links":{"self":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/655"}],"collection":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=655"}],"version-history":[{"count":9,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/655\/revisions"}],"predecessor-version":[{"id":773,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/655\/revisions\/773"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/media\/840"}],"wp:attachment":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}