{"id":763,"date":"2020-07-16T11:48:49","date_gmt":"2020-07-16T03:48:49","guid":{"rendered":"http:\/\/122.152.205.50\/wordpress\/?p=763"},"modified":"2021-11-03T14:02:38","modified_gmt":"2021-11-03T06:02:38","slug":"%e5%86%85%e5%ad%98%e6%b3%84%e6%bc%8f","status":"publish","type":"post","link":"http:\/\/xinyiworld.top\/wordpress_it\/?p=763","title":{"rendered":"\u5185\u5b58\u6cc4\u6f0f\u539f\u7406\u53ca\u89e3\u51b3\u529e\u6cd5"},"content":{"rendered":"\r\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_16 counter-hierarchy counter-decimal ez-toc-grey\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#%E4%B8%80%E3%80%81%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F%E7%9A%84%E6%A6%82%E5%BF%B5\" title=\"\u4e00\u3001\u5185\u5b58\u6cc4\u6f0f\u7684\u6982\u5ff5\">\u4e00\u3001\u5185\u5b58\u6cc4\u6f0f\u7684\u6982\u5ff5<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#%E4%BA%8C%E3%80%81%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F%E7%9A%84%E5%8E%9F%E5%9B%A0\" title=\"\u4e8c\u3001\u5185\u5b58\u6cc4\u6f0f\u7684\u539f\u56e0\">\u4e8c\u3001\u5185\u5b58\u6cc4\u6f0f\u7684\u539f\u56e0<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#%E4%B8%89%E3%80%81%E5%A6%82%E4%BD%95%E5%8F%91%E7%8E%B0%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\" title=\"\u4e09\u3001\u5982\u4f55\u53d1\u73b0\u5185\u5b58\u6cc4\u6f0f\">\u4e09\u3001\u5982\u4f55\u53d1\u73b0\u5185\u5b58\u6cc4\u6f0f<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#%E5%9B%9B%E3%80%81%E5%B8%B8%E8%A7%81%E7%9A%84%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F%E5%BD%A2%E5%BC%8F\" title=\"\u56db\u3001\u5e38\u89c1\u7684\u5185\u5b58\u6cc4\u6f0f\u5f62\u5f0f\">\u56db\u3001\u5e38\u89c1\u7684\u5185\u5b58\u6cc4\u6f0f\u5f62\u5f0f<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#1%E9%9D%99%E6%80%81%E5%8F%98%E9%87%8F\" title=\"1.\u9759\u6001\u53d8\u91cf\">1.\u9759\u6001\u53d8\u91cf<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#2%E5%86%85%E9%83%A8%E7%B1%BB\" title=\"2.\u5185\u90e8\u7c7b\">2.\u5185\u90e8\u7c7b<\/a><ul class=\"ez-toc-list-level-4\"><li class=\"ez-toc-heading-level-4\"><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#1%EF%BC%89%E9%9D%9E%E9%9D%99%E6%80%81%E5%86%85%E9%83%A8%E7%B1%BB\" title=\"1\uff09\u975e\u9759\u6001\u5185\u90e8\u7c7b\">1\uff09\u975e\u9759\u6001\u5185\u90e8\u7c7b<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-4\"><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#2%EF%BC%89%E9%9D%99%E6%80%81%E5%86%85%E9%83%A8%E7%B1%BB\" title=\"2\uff09\u9759\u6001\u5185\u90e8\u7c7b\">2\uff09\u9759\u6001\u5185\u90e8\u7c7b<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-9\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#3%E5%8D%95%E4%BE%8B%E6%A8%A1%E5%BC%8F%E5%AF%BC%E8%87%B4%E7%9A%84%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\" title=\"3.\u5355\u4f8b\u6a21\u5f0f\u5bfc\u81f4\u7684\u5185\u5b58\u6cc4\u6f0f\">3.\u5355\u4f8b\u6a21\u5f0f\u5bfc\u81f4\u7684\u5185\u5b58\u6cc4\u6f0f<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-10\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#4%E9%9D%99%E6%80%81%E6%96%B9%E6%B3%95%E4%BC%A0%E5%85%A5%E5%AF%B9%E8%B1%A1Context\" title=\"4.\u9759\u6001\u65b9\u6cd5\u4f20\u5165\u5bf9\u8c61(Context)\">4.\u9759\u6001\u65b9\u6cd5\u4f20\u5165\u5bf9\u8c61(Context)<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-11\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#4Handler%E5%AF%BC%E8%87%B4Activity%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\" title=\"4.Handler\u5bfc\u81f4Activity\u5185\u5b58\u6cc4\u6f0f\">4.Handler\u5bfc\u81f4Activity\u5185\u5b58\u6cc4\u6f0f<\/a><ul class=\"ez-toc-list-level-4\"><li class=\"ez-toc-heading-level-4\"><a class=\"ez-toc-link ez-toc-heading-12\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#1%EF%BC%89Handler%E8%A2%ABMessageQueue%E5%BC%95%E7%94%A8%E5%AF%BC%E8%87%B4%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\" title=\"#1\uff09Handler\u88abMessageQueue\u5f15\u7528\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f \">#1\uff09Handler\u88abMessageQueue\u5f15\u7528\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f <\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-4\"><a class=\"ez-toc-link ez-toc-heading-13\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#2%EF%BC%89Handler%E8%A2%ABThread%E5%BC%95%E7%94%A8%E5%AF%BC%E8%87%B4%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\" title=\"#2\uff09Handler\u88abThread\u5f15\u7528\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\">#2\uff09Handler\u88abThread\u5f15\u7528\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-4\"><a class=\"ez-toc-link ez-toc-heading-14\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#3%EF%BC%89%E9%9D%9E%E5%86%85%E9%83%A8%E7%B1%BB%E7%9A%84Handler%E8%A2%ABThread%E5%BC%95%E7%94%A8%E4%B9%9F%E4%BC%9A%E5%AF%BC%E8%87%B4%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\" title=\"#3\uff09\u975e\u5185\u90e8\u7c7b\u7684Handler\u88abThread\u5f15\u7528\u4e5f\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\">#3\uff09\u975e\u5185\u90e8\u7c7b\u7684Handler\u88abThread\u5f15\u7528\u4e5f\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-4\"><a class=\"ez-toc-link ez-toc-heading-15\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=763\/#Handler%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F%E7%9A%84%E8%A7%A3%E5%86%B3%E5%8A%9E%E6%B3%95\" title=\"#Handler\u5185\u5b58\u6cc4\u6f0f\u7684\u89e3\u51b3\u529e\u6cd5\">#Handler\u5185\u5b58\u6cc4\u6f0f\u7684\u89e3\u51b3\u529e\u6cd5<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%E4%B8%80%E3%80%81%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F%E7%9A%84%E6%A6%82%E5%BF%B5\"><\/span>\u4e00\u3001\u5185\u5b58\u6cc4\u6f0f\u7684\u6982\u5ff5<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<p>Java\u865a\u62df\u673a\u4e2d\u67d0\u5757\u5185\u5b58\uff08\u4e00\u822c\u662f\u5bf9\u8c61\uff09\u5e94\u5f53\u88ab\u56de\u6536\uff0c\u4f46\u662f\u56e0\u4e3a\u67d0\u4e9b\u539f\u56e0\uff08\u4e00\u822c\u662f\u7a0b\u5e8f\u5458\u6c34\u5e73\u4e0d\u8db3\uff09\u65e0\u6cd5\u88ab\u5783\u573e\u56de\u6536\u5668\u56de\u6536\uff0c\u5c31\u53eb\u505a\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\r\n\r\n\r\n\r\n<p class=\"has-text-color has-vivid-green-cyan-color\">\u6ce8\u610f\u65e0\u6cd5\u56de\u6536\u4e0d\u7b49\u4e8e\u5185\u5b58\u6cc4\u6f0f\uff0c \u7528\u903b\u8f91\u5b66\u8868\u793a\u5c31\u662f\u5185\u5b58\u6cc4\u6f0f <strong>\u2192<\/strong> \u65e0\u6cd5\u56de\u6536\uff0c\u5185\u5b58\u6cc4\u6f0f\u662f\u65e0\u6cd5\u56de\u6536\u7684\u5145\u5206\u6761\u4ef6\uff0c\u65e0\u6cd5\u56de\u6536\u662f\u5185\u5b58\u6cc4\u6f0f\u7684\u5fc5\u8981\u6761\u4ef6\u3002\u5185\u5b58\u6cc4\u6f0f\u4e86\u80af\u5b9a\u662f\u65e0\u6cd5\u56de\u6536\uff0c\u4f46\u662f\u65e0\u6cd5\u56de\u6536\u4e0d\u4e00\u5b9a\u5c31\u662f\u5185\u5b58\u6cc4\u6f0f\u3002\u6bd4\u5982\u5b9a\u4e49\u4e00\u4e2a\u5f3a\u5f15\u7528\uff0c\u6307\u5411\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u5230\u5904\u90fd\u5728\u7528\uff0c\u5b83\u4e0d\u80fd\u56de\u6536\uff0c\u4f46\u662f\u8fd9\u4e0d\u53eb\u505a\u5185\u5b58\u6cc4\u6f0f\u3002\u4e00\u5b9a\u662f\u5e94\u8be5\u8981\u56de\u6536\u7684\uff0c\u4f46\u662f\u9519\u8bef\u7684\u88ab\u5f15\u7528\u5bfc\u81f4\u65e0\u6cd5\u56de\u6536\u624d\u53eb\u5185\u5b58\u6cc4\u6f0f\uff01<\/p>\r\n\r\n\r\n\r\n<p class=\"has-text-color has-luminous-vivid-amber-color\">\u800c\u4e14\uff0c\u5185\u5b58\u6cc4\u6f0f\u6709\u65f6\u95f4\u4e0a\u7684\u76f8\u5bf9\u6027\u3002\u5728\u67d0\u4e00\u6bb5\u65f6\u95f4\u5185\uff0c\u53ef\u80fd\u67d0\u4e2a\u5bf9\u8c61\u610f\u5916\u5f15\u7528\uff0c\u5bfc\u81f4GC\u65e0\u6cd5\u56de\u6536\uff0c\u4f46\u662f\u8fc7\u4e86\u67d0\u4e2a\u65f6\u95f4\u8282\u70b9\uff0c\u53ef\u80fd\u5bf9\u8c61\u53c8\u53ef\u4ee5\u88ab\u56de\u6536\u3002\u4f46\u662f\u77ed\u65f6\u95f4\u7684\u5185\u5b58\u6cc4\u6f0f\u5806\u79ef\uff0c\u4e5f\u6709\u5f15\u53d1OOM\u7684\u5371\u9669\u3002<\/p>\r\n\r\n\r\n\r\n<p><\/p>\r\n\r\n\r\n\r\n<p><\/p>\r\n\r\n\r\n\r\n<p>\u60f3\u8981\u5f7b\u5e95\u5f04\u660e\u767d\u5185\u5b58\u6cc4\u6f0f\uff0c\u4f60\u9700\u8981\u8865\u5145\u4e00\u4e0b\u4ee5\u4e0b\u51e0\u70b9\u77e5\u8bc6<\/p>\r\n\r\n\r\n\r\n<p>1\uff09 Java\u865a\u62df\u673a\u53caGC\u7684\u539f\u7406<br><a href=\"https:\/\/www.jianshu.com\/p\/d6b7681dd44c\">https:\/\/www.jianshu.com\/p\/d6b7681dd44c<\/a> <\/p>\r\n\r\n\r\n\r\n<p>\u8bb0\u4f4f\u51e0\u4e2a\u91cd\u8981\u7684\u70b9\uff1a<\/p>\r\n\r\n\r\n\r\n<p class=\"has-text-color has-luminous-vivid-orange-color\"># \u5783\u573e\u56de\u6536\u5668\u56de\u6536\u7684\u76ee\u6807\u662f\u5806\u5185\u5b58\u4e2d\u7684\u5bf9\u8c61<br># \u5bf9\u8c61\u56de\u6536\u7684\u6761\u4ef6\u662f\u5bf9\u8c61\u4e0d\u518d\u88ab\u4efb\u4f55\u53d8\u91cf\u5f15\u7528 <br># \u9759\u6001\u53d8\u91cf\u672c\u8eab\u4e0d\u4f1a\u88ab\u56de\u6536\uff0c\u9759\u6001\u53d8\u91cf\u6240\u5f15\u7528\u7684\u5bf9\u8c61\u662f\u53ef\u4ee5\u56de\u6536\u7684\u3002 <br># \u9759\u6001\u53d8\u91cf\u5b58\u50a8\u5728\u65b9\u6cd5\u533a\uff0c\u4e0d\u5728\u5806\u5185\u5b58\uff0c\u6240\u4ee5\u4e0d\u5b58\u5728\u56de\u6536\u4e00\u8bf4\u3002\u5176\u6240\u5728\u7c7b\uff0c\u53ea\u662f\u4fbf\u4e8e\u53bb\u8bbf\u95ee\u8fd9\u4e2a\u9759\u6001\u53d8\u91cf\u800c\u5df2\u3002<br><\/p>\r\n\r\n\r\n\r\n<p>2\uff09\u533f\u540d\u5185\u90e8\u7c7b<\/p>\r\n\r\n\r\n\r\n<p><a href=\"https:\/\/www.cnblogs.com\/wuhenzhidu\/p\/anonymous.html\">https:\/\/www.cnblogs.com\/wuhenzhidu\/p\/anonymous.html<\/a><\/p>\r\n\r\n\r\n\r\n<p>\u6240\u8c13\u533f\u540d\u5185\u90e8\u7c7b\uff0c\u5c31\u662f\u5728\u7236\u7c7bOutter\u91ccnew Inner()<strong>{}<\/strong>,\u6ce8\u610f\u4e00\u5b9a\u8981\u6709{}\uff0c\u4e0d\u4e00\u5b9a\u975e\u8981\u590d\u5199\u5185\u90e8\u7c7bInner \u7684\u65b9\u6cd5\u3002\u5982\u679c\u53ea\u662fnew Inner()\uff0c\u5c31\u4e0d\u7b97\u4f5c\u662f\u5185\u90e8\u7c7b\u4e86\u3002<\/p>\r\n\r\n\r\n\r\n<p class=\"has-text-color has-luminous-vivid-orange-color\"> # \u533f\u540d\u5185\u90e8\u7c7b\u6301\u6709\u5916\u90e8\u7c7b\u7684\u5f3a\u5f15\u7528 <\/p>\r\n\r\n\r\n\r\n<h2 id=\"mce_1\"><span class=\"ez-toc-section\" id=\"%E4%BA%8C%E3%80%81%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F%E7%9A%84%E5%8E%9F%E5%9B%A0\"><\/span>\u4e8c\u3001\u5185\u5b58\u6cc4\u6f0f\u7684\u539f\u56e0<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<p> \u5806\u5185\u5b58\u4e2d\u7684<code>\u957f\u751f\u547d\u5468\u671f\u5bf9\u8c61\u6301\u6709\u77ed\u751f\u547d\u5468\u671f\u5bf9\u8c61\u7684\u5f3a\/\u8f6f\u5f15\u7528<\/code>\uff0c\u5c3d\u7ba1\u77ed\u751f\u547d\u5468\u671f\u7684\u5bf9\u8c61\u5df2\u7ecf\u4e0d\u518d\u9700\u8981\u4e86\uff0c\u4f46\u662f\u957f\u751f\u547d\u5468\u671f\u5bf9\u8c61\u6301\u6709\u5b83\u7684\u5f15\u7528\u800c\u5bfc\u81f4\u4e0d\u80fd\u88ab\u56de\u6536\uff0c\u8fd9\u5c31\u662fJava\u5185\u5b58\u6cc4\u9732\u7684\u6839\u672c\u539f\u56e0\u3002 <\/p>\r\n\r\n\r\n\r\n<p>\u6ce8\u610f\u6301\u6709\u5f15\u7528\u7684\u65b9\u5411\uff0c\u662f\u957f\u751f\u547d\u5468\u671f\u7684\u5bf9\u8c61\u6301\u6709\u77ed\u751f\u547d\u5468\u671f\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u5bfc\u81f4\u77ed\u751f\u547d\u5468\u671f\u5bf9\u8c61\u65e0\u6cd5\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u6240\u8c13\u7684\u957f\u751f\u547d\u5468\u671f\uff0c\u9996\u5148\u6211\u4eec\u4f1a\u8054\u60f3\u5230static\uff0c\u5176\u5b9e\u4e00\u4e2a\u65e0\u9650\u5faa\u73afThread\u4e5f\u7b97\u4f5c\u662f\u4e00\u4e2a\u957f\u7684\u751f\u547d\u5468\u671f\u3002<\/p>\r\n\r\n\r\n\r\n<h2 id=\"mce_6\"><span class=\"ez-toc-section\" id=\"%E4%B8%89%E3%80%81%E5%A6%82%E4%BD%95%E5%8F%91%E7%8E%B0%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\"><\/span>\u4e09\u3001\u5982\u4f55\u53d1\u73b0\u5185\u5b58\u6cc4\u6f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n<p>\u53c2\u8003\u535a\u6587\r\n<a href=\"https:\/\/blog.csdn.net\/u012760183\/article\/details\/52068490\">https:\/\/blog.csdn.net\/u012760183\/article\/details\/52068490<\/a>\r\n<\/p>\r\n\r\n<p>\u5185\u5b58\u6cc4\u6f0f\u5230\u4e00\u5b9a\u6781\u9650\uff0c\u5982\u679c\u7a0b\u5e8f\u7ee7\u7eed\u7533\u8bf7\u5185\u5b58\uff0c\u5185\u5b58\u4e0d\u591f\u7528\u5c31\u4f1a\u629b\u51faOOM\u5f02\u5e38\uff0c\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\u3002\u6ce8\u610f\u89e6\u53d1OOM\u7684\u5730\u65b9\uff0c\u4e0d\u4e00\u5b9a\u5c31\u662f\u5185\u5b58\u6cc4\u6f0f\u7684\u5730\u65b9\uff0c\u4e0d\u8981\u9519\u8bef\u5730\u628a\u76ee\u6807\u9501\u5b9a\u5728OOM\u7684\u5730\u65b9\u3002\u53d1\u73b0\u5185\u5b58\u6cc4\u6f0f\u53ef\u4ee5\u8fd0\u7528\u4e00\u5b9a\u7684\u5de5\u5177\u548c\u624b\u6bb5\uff1a<\/p>\r\n\r\n\r\n\r\n<p>1\uff09Android Studio Profiler\u5de5\u5177<\/p>\r\n\r\n\r\n\r\n<p><a href=\"https:\/\/blog.csdn.net\/u010838555\/article\/details\/96483705\">https:\/\/blog.csdn.net\/u010838555\/article\/details\/96483705<\/a><\/p>\r\n\r\n\r\n\r\n<p>\u5982\u679c\u53cd\u590d\u6d4b\u8bd5\u7a0b\u5e8f\u67d0\u4e2a\u8fc7\u7a0b\uff0cTotals\u53ea\u589e\u4e0d\u51cf\uff0c\u5f3a\u5236GC\u4e4b\u540e\u4ecd\u7136\u6ca1\u6709\u4e0b\u964d\uff0c\u5c31\u8bf4\u660e\u5185\u5b58\u6cc4\u6f0f\u4e86\u3002 \u5f3a\u5236GC\u4e4b\u540e dump\u51fa\u5185\u5b58\uff0c\u5982\u679c\u53d1\u73b0\u672c\u5e94\u8be5\u88ab\u56de\u6536\u7684\u5bf9\u8c61\u4ecd\u7136\u5728\u5185\u5b58\u91cc\uff0c\u90a3\u5c31\u8bf4\u660e\u8fd9\u4e2a\u5bf9\u8c61\u5df2\u7ecf\u5185\u5b58\u6cc4\u6f0f\u4e86\u3002<\/p>\r\n\r\n\r\n\r\n<p>2\uff09Android-LeakCanary<\/p>\r\n\r\n\r\n\r\n<p><a href=\"https:\/\/www.jianshu.com\/p\/61860529ee1b\">https:\/\/www.jianshu.com\/p\/61860529ee1b<\/a><\/p>\r\n<p><a href=\"https:\/\/blog.csdn.net\/wyh_healer\/article\/details\/60961109\">https:\/\/blog.csdn.net\/wyh_healer\/article\/details\/60961109<\/a><\/p>\r\n\r\n\r\n\r\n\r\n<p><br>LeakCanary \u5927\u81f4\u6846\u67b6\u548c\u5b9e\u73b0\u539f\u7406\uff1a <a href=\"https:\/\/blog.csdn.net\/adarcy\/article\/details\/82055945\">https:\/\/blog.csdn.net\/adarcy\/article\/details\/82055945<\/a> <\/p>\r\n\r\n\r\n\r\n<p><\/p>\r\n\r\n\r\n\r\n<h2 id=\"mce_2\"><span class=\"ez-toc-section\" id=\"%E5%9B%9B%E3%80%81%E5%B8%B8%E8%A7%81%E7%9A%84%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F%E5%BD%A2%E5%BC%8F\"><\/span>\u56db\u3001\u5e38\u89c1\u7684\u5185\u5b58\u6cc4\u6f0f\u5f62\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<p>\u9075\u5faa\u957f\u751f\u547d\u5468\u671f\u5f15\u7528\u77ed\u751f\u547d\u5468\u671f\u7684\u539f\u5219\u5b9a\u4f4d<\/p>\r\n\r\n\r\n\r\n<h3><span class=\"ez-toc-section\" id=\"1%E9%9D%99%E6%80%81%E5%8F%98%E9%87%8F\"><\/span>1.\u9759\u6001\u53d8\u91cf<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n\r\n\r\n\r\n<p>\u9759\u6001\u53d8\u91cf\uff08\u4efb\u610f\u7684\u7c7b\u578b\uff09\u5f15\u7528\u4e86\u5bf9\u8c61\uff0c\u5982\u679c\u4e1a\u52a1\u7ed3\u675f\u4e86\u4e0d\u9700\u8981\u518d\u4f7f\u7528\u8fd9\u4e9b\u5bf9\u8c61\uff0c\u53ef\u4ee5\u628a\u53d8\u91cf\u6e05\u7a7a\uff08\u5bb9\u5668\uff09\u6216\u8005\u76f4\u63a5\u5c06\u53d8\u91cf\u7f6e\u4e3anull\u3002<\/p>\r\n\r\n\r\n\r\n<h3 id=\"mce_6\"><span class=\"ez-toc-section\" id=\"2%E5%86%85%E9%83%A8%E7%B1%BB\"><\/span>2.\u5185\u90e8\u7c7b<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n\r\n\r\n\r\n<h4><span class=\"ez-toc-section\" id=\"1%EF%BC%89%E9%9D%9E%E9%9D%99%E6%80%81%E5%86%85%E9%83%A8%E7%B1%BB\"><\/span>1\uff09\u975e\u9759\u6001\u5185\u90e8\u7c7b<span class=\"ez-toc-section-end\"><\/span><\/h4>\r\n\r\n\r\n\r\n<p><a href=\"https:\/\/blog.csdn.net\/qq_41991743\/article\/details\/89370840\">https:\/\/blog.csdn.net\/qq_41991743\/article\/details\/89370840<\/a><\/p>\r\n\r\n\r\n\r\n<p><strong>\u975e\u9759\u6001\u5185\u90e8\u7c7b\u5bf9\u8c61\u4e00\u5b9a\u4f1a\u6301\u6709\u5176\u5916\u90e8\u7c7b\u5bf9\u8c61\u7684\u9690\u5f0f\u5f15\u7528<\/strong><\/p>\r\n\r\n\r\n\r\n<p>\u5982\u679c\u975e\u9759\u6001\u5185\u90e8\u7c7b\u5bf9\u8c61\u88ab\u67d0\u4e00\u4e2a\u53d8\u91cf\u5f15\u7528\uff0c\u90a3\u4e48\u8fd9\u4e2a\u5185\u90e8\u7c7b\u7684\u5916\u90e8\u7c7b\u5bf9\u8c61\u4e5f\u4f1a\u88ab\u8fd9\u4e2a\u53d8\u91cf\u5f15\u7528\u3002\u5047\u5982\u8fd9\u4e2a\u53d8\u91cf\u53ea\u60f3\u6301\u6709\u5185\u90e8\u7c7b\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u4f46\u662f\u5374\u610f\u5916\u7684\u6301\u6709\u4e86\u5185\u90e8\u7c7b\u7684\u5916\u90e8\u7c7b\u5bf9\u8c61\u7684\u5f15\u7528\u3002\u5982\u679c\u8fd9\u4e2a\u53d8\u91cf\u4e3a\u9759\u6001\u53d8\u91cf\u4e00\u76f4\u5b58\u5728\uff0c\u4e0d\u4f5c\u6e05\u7a7a\u5904\u7406\uff0c\u5219\u8ba4\u4e3a\u5916\u90e8\u7c7b\u5bf9\u8c61\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/p>\r\n\r\n\r\n\r\n<p>\u5982\u679cActivity\u91cc\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5185\u90e8\u7c7b\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u9759\u6001\u6210\u5458\u53d8\u91cf\uff0c\u9759\u6001\u6210\u5458\u53d8\u91cf\u5f15\u7528\u4e86\u5185\u90e8\u7c7b\u5bf9\u8c61\uff0c\u5982\u679cActivity\u9500\u6bc1\uff0c\u4f46\u662f\u9759\u6001\u6210\u5458\u53d8\u91cf\u6ca1\u6709\u6e05\u7a7a\uff0c\u90a3\u4e48\u8fd9\u4e2aActivity\u5c31\u5185\u5b58\u6cc4\u6f0f\u4e86\u3002<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>ublic class StaticObjectTestActivity extends AppCompatActivity {\r\n    private static final String TAG = \"StaticObjectTestActivit\";\r\n    private static BigObj bigObjPub;\r\n\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_static_object_test);\r\n        System.out.println(\"I'm activity \" + this);\r\n        bigObjPub = new BigObj();\r\n    }\r\n\r\n    @Override\r\n    protected void onDestroy() {\r\n        super.onDestroy();\r\n\/\/        bigObjPub = null;             \/\/\u6b64\u5904\u82e5\u5c06\u9759\u6001\u53d8\u91cfbigObjPub\u7f6e\u4e3anull\uff0c\u5219gc\u53ef\u4ee5\u56de\u6536\u3002\r\n    }\r\n\r\n    class BigObj {\r\n\r\n        private final byte[] bytes;\r\n\r\n        public BigObj() {\r\n            bytes = new byte[1024 * 1024 * 50];\r\n        }\r\n\r\n        @Override\r\n        protected void finalize() throws Throwable {\r\n            System.out.println(\"I'm finalize\");\r\n            super.finalize();\r\n        }\r\n    }\r\n\r\n}<\/code><\/pre>\r\n\r\n\r\n\r\n<p>\u53ef\u4ee5\u770b\u5230StaticObjectTestActivity\u9000\u51fa\u540e\u4f1a\u6709\u4e00\u6b21\u6cc4\u6f0f\uff0c\u5c31\u662f\u56e0\u4e3a\u5185\u90e8\u7684\u9759\u6001\u6210\u5458\u53d8\u91cf<em>bigObjPub<\/em>\u5f15\u7528\u4e86StaticObjectTestActivity \u7684\u5185\u90e8\u7c7bBigObj\u3002<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img loading=\"lazy\" width=\"1293\" height=\"406\" src=\"http:\/\/122.152.205.50\/wordpress\/wp-content\/uploads\/2020\/07\/image-3.png\" alt=\"\" class=\"wp-image-788\"\/><\/figure>\r\n\r\n\r\n\r\n<p class=\"has-text-color has-luminous-vivid-orange-color\"><strong>\u975e\u9759\u6001\u5185\u90e8\u7c7b\u672c\u8eab\u4e0d\u4e00\u5b9a\u4f1a\u5bfc\u81f4\u5916\u90e8\u7c7b\u5185\u5b58\u6cc4\u6f0f\uff0c\u4e00\u65e6\u5185\u90e8\u7c7b\u5bf9\u8c61\u88ab\u9759\u6001\u53d8\u91cf\u5f15\u7528\uff0c\u6216\u8005\u88ab\u957f\u751f\u547d\u5468\u671f\u7684\u5bf9\u8c61\u5f15\u7528\uff08\u5982\u9759\u6001\u53d8\u91cf\u6307\u5411\u7684\u5bf9\u8c61\u7b49\uff09\uff0c\u6216\u8005\u5176\u81ea\u8eab\u7684\u751f\u547d\u5468\u671f\u5f88\u957f\uff08\u5982new \u4e00\u4e2aThread sleep\u5f88\u4e45\uff09\u90fd\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002<\/strong><\/p>\r\n\r\n\r\n\r\n<h4 id=\"mce_20\"><span class=\"ez-toc-section\" id=\"2%EF%BC%89%E9%9D%99%E6%80%81%E5%86%85%E9%83%A8%E7%B1%BB\"><\/span>2\uff09\u9759\u6001\u5185\u90e8\u7c7b<span class=\"ez-toc-section-end\"><\/span><\/h4>\r\n\r\n\r\n\r\n<p>\u9759\u6001\u5185\u90e8\u7c7b\u6b63\u597d\u662f\u5bf9\u4ed8\u975e\u9759\u6001\u5185\u90e8\u7c7b\u5185\u5b58\u6cc4\u6f0f\u7684\u514b\u661f\uff0c\u56e0\u4e3a\u5b83\u4e0d\u5b58\u5728\u5bf9\u5916\u90e8\u7c7b\u7684\u9690\u5f0f\u5f15\u7528\u3002\u5b83\u53ea\u662f\u5b9a\u4e49\u5728\u5916\u90e8\u7c7b\u91cc\uff0c\u53d7\u5916\u90e8\u7c7b\u7684\u8bbf\u95ee\u9650\u5236\u3002<\/p>\r\n\r\n\r\n\r\n<h3 id=\"mce_4\"><span class=\"ez-toc-section\" id=\"3%E5%8D%95%E4%BE%8B%E6%A8%A1%E5%BC%8F%E5%AF%BC%E8%87%B4%E7%9A%84%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\"><\/span>3.\u5355\u4f8b\u6a21\u5f0f\u5bfc\u81f4\u7684\u5185\u5b58\u6cc4\u6f0f<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n\r\n\r\n\r\n<p>\"\u5355\u4f8b\"\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u9759\u6001\u53d8\u91cf\u5f15\u7528\u7684\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u5c31\u7279\u522b\u957f\uff0c\u5982\u679c\u5bf9\u8c61\u91cc\u5f15\u7528\u4e86\u67d0\u4e2a\u5bf9\u8c61\uff08\u5982Context\uff09\u7b49\uff0c\u5c31\u4f1a\u9020\u6210\u8fd9\u4e2a\u5bf9\u8c61\u65e0\u6cd5\u88ab\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<h3 id=\"mce_3\"><span class=\"ez-toc-section\" id=\"4%E9%9D%99%E6%80%81%E6%96%B9%E6%B3%95%E4%BC%A0%E5%85%A5%E5%AF%B9%E8%B1%A1Context\"><\/span>4.\u9759\u6001\u65b9\u6cd5\u4f20\u5165\u5bf9\u8c61(Context)<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n\r\n\r\n\r\n<p>\u9759\u6001\u65b9\u6cd5\u6bcf\u8c03\u7528\u4e00\u6b21\uff0c\u53c2\u6570\u4f20\u5165Context\uff0c\u4f46\u662f\u9759\u6001\u65b9\u6cd5\u6240\u5728\u7684\u7c7b\u4e0d\u53bb\u58f0\u660estatic\u53d8\u91cf\u5f15\u7528\u8fd9\u4e2aContext\u5bf9\u8c61\uff0c\u5982\u679cContext\u6bcf\u6b21\u90fd\u662f\u65b0\u7684\u5bf9\u8c61\uff0c\u90a3\u4e48\u5185\u5b58\u4e2d\u8fd9\u4e2aContext\u5bf9\u8c61\u4e2a\u6570\u5c31\u4f1a\u4e00\u76f4\u7d2f\u52a0\u3002\u4f46\u662f\uff0c\u8fd9\u79cd\u60c5\u51b5\uff0c<strong>\u5f53GC\u53d1\u751f\u65f6\uff0c\u8fd9\u4e9b\u5bf9\u8c61\u53ef\u4ee5\u88ab\u81ea\u52a8\u56de\u6536<\/strong>\uff01<\/p>\r\n\r\n\r\n\r\n<p>#android\u5e38\u89c1\u7684\u4f1a\u5f15\u7528Context\u7684\u9759\u6001\u65b9\u6cd5API <\/p>\r\n\r\n\r\n\r\n<p>#Toast<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>Toast.makeText(this, \"1\", Toast.LENGTH_SHORT).show();<\/code><\/pre>\r\n\r\n\r\n\r\n<h3 id=\"mce_7\"><span class=\"ez-toc-section\" id=\"4Handler%E5%AF%BC%E8%87%B4Activity%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\"><\/span>4.Handler\u5bfc\u81f4Activity\u5185\u5b58\u6cc4\u6f0f<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n\r\n\r\n\r\n<p>\u5f88\u591a\u4eba\u53ef\u80fd\u90fd\u542c\u8bf4\u8fc7\u5728Activity\u91cc\u4f7f\u7528Handler\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\uff0c\u4f46\u662f\u5177\u4f53\u662f\u4ec0\u4e48\u60c5\u51b5\u4e0b\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\uff1f\u662f\u5728Activity\u91cc\u58f0\u660eHandler\u5c31\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u5417\uff0c\u7b54\u6848\u662fNO\u3002<strong>Handler\u5185\u5b58\u6cc4\u6f0f\u7684\u672c\u8d28\u539f\u56e0\u662fHandler\u88ab\u5f15\u7528\u4e86\uff0c\u800c\u5f80\u5f80\u8fd9\u4e9b\u5f15\u7528\u4e0d\u660e\u663e\u3002<\/strong><\/p>\r\n\r\n\r\n\r\n<p>\u53c2\u7167<a href=\"https:\/\/blog.csdn.net\/xzw00\/article\/details\/50156471\">https:\/\/blog.csdn.net\/xzw00\/article\/details\/50156471 <\/a>\u6211\u5199\u4e86\u51e0\u4e2aDemo\u6d4b\u8bd5\u4e86\u4e00\u4e0b<\/p>\r\n\r\n\r\n\r\n<h4><span class=\"ez-toc-section\" id=\"1%EF%BC%89Handler%E8%A2%ABMessageQueue%E5%BC%95%E7%94%A8%E5%AF%BC%E8%87%B4%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\"><\/span><strong>#1\uff09Handler\u88abMessageQueue\u5f15\u7528\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f<\/strong><br><span class=\"ez-toc-section-end\"><\/span><\/h4>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>public class HandlerLeakTestActivity extends AppCompatActivity {\r\n    private static final String TAG = \"HandlerLeakTestActivity\";\r\n    protected static final int MSG_TEST = 1;\r\n\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_handler_leak_test);\r\n        Log.d(TAG, \"onCreate: \" + \"I'm activity \" + this);\r\n        mHandler.sendEmptyMessage(MSG_TEST);\r\n        finish();\r\n    }\r\n\r\n    private  Handler mHandler = new Handler() {\r\n        @Override\r\n        public void handleMessage(Message msg) {\r\n            \/\/ TODO Auto-generated method stub\r\n            switch (msg.what) {\r\n                case MSG_TEST:\r\n                    Log.w(TAG, \"Handle the test message!\");\r\n                    mHandler.sendEmptyMessageDelayed(MSG_TEST, 5000);\r\n                    break;\r\n\r\n                default:\r\n                    break;\r\n            }\r\n            super.handleMessage(msg);\r\n        }\r\n    };\r\n\r\n}<\/code><\/pre>\r\n\r\n\r\n\r\n<p>\u4e0d\u65ad\u7684\u5f00\u542f\u5173\u95edHandlerLeakTestActivity\uff0c\u7136\u540e\u5f3a\u5236GC\uff0c\u53d1\u73b0 <br>\u591a\u4e2aHandlerLeakTestActivity \u53caHandler\u5bf9\u8c61\u4ecd\u7136\u9a7b\u7559\u5728\u5185\u5b58\u4e2d\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u628amHandler.sendEmptyMessageDelayed(MSG_TEST, 5000);\u8fd9\u884c\u4ee3\u7801\u53bb\u6389\uff0c\u518d <br>\u5f00\u542f\u5173\u95edHandlerLeakTestActivity \uff0c \u53d1\u73b0\u591a\u4e2aHandlerLeakTestActivity \u53caHandler\u5bf9\u8c61\u9a7b\u7559\u5728\u5185\u5b58\u4e2d\u3002 \u4f46\u662f\u5f3a\u5236GC\uff0c\u8fd9\u4e9b\u5bf9\u8c61\u53ef\u4ee5\u81ea\u52a8\u56de\u6536\u3002\u4e5f\u5c31\u662f\u8bf4handler\u7684postDelay\u65b9\u6cd5\u4f1a\u5bfc\u81f4Activity\u5185\u5b58\u6cc4\u6f0f\uff0c\u5728 <a href=\"https:\/\/www.cnblogs.com\/aimr\/p\/5217918.html\">https:\/\/www.cnblogs.com\/aimr\/p\/5217918.html<\/a> \u8fd9\u7bc7\u6587\u7ae0\u8bf4\u660e\u7684\u5f88\u6e05\u695a\uff1a<\/p>\r\n\r\n\r\n\r\n<p> \u5982\u679c\u4f60\u6267\u884c\u4e86Handler\u7684postDelayed()\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u4f1a\u5c06\u4f60\u7684Handler\u88c5\u5165\u4e00\u4e2aMessage\uff0c\u5e76\u628a\u8fd9\u6761Message\u63a8\u5230MessageQueue\u4e2d\uff0c\u90a3\u4e48\u5728\u4f60\u8bbe\u5b9a\u7684delay\u5230\u8fbe\u4e4b\u524d\uff0c\u4f1a\u6709\u4e00\u6761MessageQueue -> Message -> Handler -> Activity\u7684\u94fe\uff0c\u5bfc\u81f4\u4f60\u7684Activity\u88ab\u6301\u6709\u5f15\u7528\u800c\u65e0\u6cd5\u88ab\u56de\u6536\u3002 <\/p>\r\n\r\n\r\n\r\n<p>\u4e0a\u9762\u7684\u4f5c\u8005\u9610\u8ff0\u7684\u89c2\u70b9\uff1a<u> handler\u7684postDelay\u65b9\u6cd5\u4f1a\u5bfc\u81f4Activity\u5185\u5b58\u6cc4\u6f0f<\/u> \u6709\u4e00\u5b9a\u7684\u7247\u9762\u6027\uff0c\u4e0a\u9762<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code> case MSG_TEST:\r\n                    Log.w(TAG, \"Handle the test message!\");\r\n                    mHandler.sendEmptyMessageDelayed(MSG_TEST, 5000);\r\n                    break;<\/code><\/pre>\r\n\r\n\r\n\r\n<p>\u4f1a\u5bfc\u81f4Handler\u4e0d\u505c\u7684\u53d1\u9001MSG_TEST\u8fd9\u4e2a\u6d88\u606f\uff0c\u4ece\u800c\u5f62\u6210 <br>MessageQueue -> Message -> Handler -> Activity\u7684\u94fe \uff0c\u5bfc\u81f4Activity\u65e0\u6cd5\u88ab\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u5bf9\u4e0a\u9762\u7684\u4ee3\u7801\u505a\u4e00\u4e0b\u6539\u52a8:<\/p>\r\n\r\n\r\n\r\n<p><strong>#\u6539\u52a81<\/strong>\uff1a\u8ba9\u53d1\u9001\u5230\u4e00\u5b9a\u6570\u76ee\u6d88\u606f\u540e\uff0c\u505c\u6b62\u6d88\u606f\u7684\u53d1\u9001\uff0c\u53d1\u73b0\u505c\u6b62\u6d88\u606f\u53d1\u9001\u4e4b\u540e\uff0c\u5f3a\u5236GC\u53ef\u4ee5\u56de\u6536Activity\u53caHandler\u5bf9\u8c61\u3002<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>public class InnerHandlerTestActivity extends AppCompatActivity {\r\n    private static final String TAG = \"InnerHandlerTestAct\";\r\n    protected static final int MSG_TEST = 1;\r\n    private int sendCount = 0;\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_simple_handler_test);\r\n        Log.d(TAG, \"onCreate: \" + \"I'm activity \" + this);\r\n        mHandler.sendEmptyMessage(MSG_TEST);\r\n        finish();\r\n    }\r\n\r\n    private Handler mHandler = new Handler() {\r\n        @Override\r\n        public void handleMessage(Message msg) {\r\n            \/\/ TODO Auto-generated method stub\r\n            switch (msg.what) {\r\n                case MSG_TEST:\r\n                    if(sendCount > 10){\r\n                        return;\r\n                    }\r\n                    Log.w(TAG, \"Handle the test message!\");\r\n                    mHandler.sendEmptyMessageDelayed(MSG_TEST, 1000);\r\n                    sendCount++;\r\n                    break;\r\n\r\n                default:\r\n                    break;\r\n            }\r\n            super.handleMessage(msg);\r\n        }\r\n    };\r\n    \r\n}<\/code><\/pre>\r\n\r\n\r\n\r\n<p><strong>\u6240\u4ee5\uff0cHandler\u4e0d\u505c\u5730\u53d1\u9001\u6d88\u606f\u8ba9MessageQueue \u4e00\u76f4\u6301\u6709Handler\u5f15\u7528\uff0c\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002<\/strong><\/p>\r\n\r\n\r\n\r\n<p><strong>#\u6539\u52a82<\/strong>\uff1a  \u5c31\u7528sendEmptyMessageDelayed\u7a0d\u5fae\u5ef6\u65f6\u957f\u70b9\u53d1\u4e2a\u6d88\u606f\uff0c\u53d1\u73b0\u53ea\u6709\u8fc7\u4e86\u5ef6\u65f6\u65f6\u95f430s\u4e4b\u540e\u624d\u80fd\u5f3a\u5236GC\u56de\u6536Activity\u53caHandler\u5bf9\u8c61\u3002 <\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>public class InnerClassHandlerTestActivity extends AppCompatActivity {\r\n    private static final String TAG = \"InnerHandlerTestAct\";\r\n    protected static final int MSG_TEST = 1;\r\n    private int sendCount = 0;\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_simple_handler_test);\r\n        Log.d(TAG, \"onCreate: \" + \"I'm activity \" + this);\r\n        mHandler.sendEmptyMessageDelayed(MSG_TEST,30 * 1000);\r\n        finish();\r\n    }\r\n\r\n    private Handler mHandler = new Handler() {\r\n        @Override\r\n        public void handleMessage(Message msg) {\r\n            \/\/ TODO Auto-generated method stub\r\n            switch (msg.what) {\r\n                case MSG_TEST:\r\n                    break;\r\n\r\n                default:\r\n                    break;\r\n            }\r\n            super.handleMessage(msg);\r\n        }\r\n    };\r\n\r\n}<\/code><\/pre>\r\n\r\n\r\n\r\n<p><strong>\u6240\u4ee5\uff0cHandler\u53ea\u8981\u6d88\u606f\u6ca1\u6709\u5904\u7406\u5b8c\uff0c\u5c31\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002<\/strong><\/p>\r\n\r\n\r\n\r\n<h4><span class=\"ez-toc-section\" id=\"2%EF%BC%89Handler%E8%A2%ABThread%E5%BC%95%E7%94%A8%E5%AF%BC%E8%87%B4%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\"><\/span><strong>#2\uff09Handler\u88abThread\u5f15\u7528\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\r\n\r\n\r\n\r\n<p>\u4e0b\u9762\u662fAndroid\u60ef\u7528\u7684\u5237\u65b0UI\u7684\u5199\u6cd5\uff0c\u5728\u5b50\u7ebf\u7a0b\u91cc\u505a\u8017\u65f6\u64cd\u4f5c\uff0c\u7136\u540e\u901a\u8fc7handler\u53d1\u9001\u6d88\u606f\u53bb\u5237\u65b0UI\u3002<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>public class ThreadHandlerTestActivity extends AppCompatActivity {\r\n    private static final String TAG = \"InnerHandlerTestAct\";\r\n    protected static final int MSG_TEST = 1;\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_thread_handler_test);\r\n        new Thread(){\r\n            @Override\r\n            public void run() {\r\n                try {\r\n                    Thread.sleep(30*1000);\r\n                } catch (InterruptedException e) {\r\n                    e.printStackTrace();\r\n                }\r\n                mHandler.sendEmptyMessage(MSG_TEST);\r\n            }\r\n        }.start();\r\n        finish();\r\n    }\r\n\r\n    private Handler mHandler = new Handler() {\r\n        @Override\r\n        public void handleMessage(Message msg) {\r\n            \/\/ TODO Auto-generated method stub\r\n            switch (msg.what) {\r\n                case MSG_TEST:\r\n                    Log.w(TAG, \"Handle the test message!\");\r\n\/\/                    mHandler.sendEmptyMessageDelayed(MSG_TEST, 5000);\r\n                    break;\r\n\r\n                default:\r\n                    break;\r\n            }\r\n            super.handleMessage(msg);\r\n        }\r\n    };\r\n}<\/code><\/pre>\r\n\r\n\r\n\r\n<p>Thread 30\u79d2\u7684\u8017\u65f6\u64cd\u4f5c\uff0c\u867d\u7136\u6700\u540e\u624d\u8c03\u7528mHandler.sendEmptyMessage(MSG_TEST)\uff0c\u4f46\u662f\u5f15\u7528\u662f\u81eaThread\u521b\u5efa\u5c31\u5f00\u59cb\uff0c\u5230Thread\u7684run\u65b9\u6cd5\u6267\u884c\u5b8c\u6bd5\uff0cThread\u9500\u6bc1\u4e4b\u540e\u5f15\u7528\u624d\u7ed3\u675f\u3002\u6240\u4ee5\u572830\u79d2\u4ee5\u5185\uff0c\u5f3a\u5236GC\uff0cActivity\u3001Handler\u4e0d\u4f1a\u88ab\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<h4 id=\"mce_1\"><span class=\"ez-toc-section\" id=\"3%EF%BC%89%E9%9D%9E%E5%86%85%E9%83%A8%E7%B1%BB%E7%9A%84Handler%E8%A2%ABThread%E5%BC%95%E7%94%A8%E4%B9%9F%E4%BC%9A%E5%AF%BC%E8%87%B4%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F\"><\/span><strong>#3\uff09\u975e\u5185\u90e8\u7c7b\u7684Handler\u88abThread\u5f15\u7528\u4e5f\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img loading=\"lazy\" width=\"1038\" height=\"443\" src=\"http:\/\/122.152.205.50\/wordpress\/wp-content\/uploads\/2020\/07\/ph.jpg\" alt=\"\" class=\"wp-image-1637\"\/><\/figure>\r\n\r\n\r\n\r\n<p>\u5982\u4e0a\u56fe\uff0c\u6211\u628aHandler\u5355\u72ec\u5b9a\u4e49\u6210\u4e00\u4e2a\u7c7b\uff0c\u4e0d\u5b9a\u4e49\u5728Activity\u5185\u90e8\u300230s\u4e4b\u5185\uff0cMyPubHandler\u4ecd\u7136\u4f1a\u6301\u6709Activity\uff0c\u5f3a\u5236GC\u4e5f\u65e0\u6cd5\u56de\u6536\uff0c\u4f46\u662f\u8fc7\u4e8630s\u4e4b\u540e\uff0c\u5f3a\u5236GC\u5c31\u80fd\u5c06Activity\u548cHandler\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<p>\u4ec0\u4e48\u60c5\u51b5\uff1f\u975e\u533f\u540d\u5185\u90e8\u7c7b\u7684Handler\u4e5f\u4f1a\u5bfc\u81f4Activity\u5185\u5b58\u6cc4\u6f0f\uff1f\u4ed4\u7ec6\u770bhandler\u7684postDelayed\u65b9\u6cd5\uff0c\u521b\u5efa\u4e86\u4e00\u4e2aRunnable\u7684\u533f\u540d\u5bf9\u8c61\uff0c\u5f62\u6210\u4e86MessageQueue -> Message -> Handler ->Runnable-> Activity\u7684\u94fe \u3002<\/p>\r\n\r\n\r\n\r\n<p>\u90a3\u4e48\u6211\u6362\u4e2ahandler\u7684\u6d88\u606f\u65b9\u6cd5<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img loading=\"lazy\" width=\"1009\" height=\"606\" src=\"http:\/\/122.152.205.50\/wordpress\/wp-content\/uploads\/2020\/07\/gh.jpg\" alt=\"\" class=\"wp-image-1640\"\/><\/figure>\r\n\r\n\r\n\r\n<p>\u8fd9\u6837\uff0c30s\u4e4b\u5185\uff0c\u5f3a\u5236GC\u4f1a\u56de\u6536Activity\uff0c30\u4e4b\u540e\uff0cHandler\u6d88\u606f\u5904\u7406\u5b8c\u624d\u80fd\u80fd\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<p class=\"has-text-color has-luminous-vivid-orange-color\">\u6240\u4ee5\uff0cHandler\u7684\u5185\u5b58\u6cc4\u6f0f\u5e94\u8be5\u5206\u4e3a2\u6bb5\u6765\u7406\u89e3\uff1a<\/p>\r\n\r\n\r\n\r\n<p>1\uff09Handler\u5b58\u5728\u5f85\u5904\u7406\u7684\u6d88\u606f\uff0c\u4f1a\u6709 MessageQueue -> Message -> Handler \u7684\u5f15\u7528\uff0c\u5bfc\u81f4Handler\u65e0\u6cd5\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<p>2\uff09Handler\u5982\u679c\u5b9a\u4e49\u6210\u533f\u540d\u5185\u90e8\u7c7b\u6216\u8005post\u4ea7\u751f\u4e86\u4e00\u4e2a\u533f\u540dRunnable\uff0c\u5982\u679cHandler\u65e0\u6cd5\u56de\u6536\uff0c\u4f1a\u6301\u6709Activity\u7684\u5f15\u7528\uff0c\u5bfc\u81f4Activity\u4e5f\u65e0\u6cd5\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<h4 id=\"mce_1\"><span class=\"ez-toc-section\" id=\"Handler%E5%86%85%E5%AD%98%E6%B3%84%E6%BC%8F%E7%9A%84%E8%A7%A3%E5%86%B3%E5%8A%9E%E6%B3%95\"><\/span><strong>#Handler\u5185\u5b58\u6cc4\u6f0f\u7684\u89e3\u51b3\u529e\u6cd5<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\r\n\r\n\r\n\r\n<p>1\uff09\u6700\u7b80\u5355\u6709\u6548\u4e14\u6700\u6b63\u89c4\u7684\u529e\u6cd5\u5c31\u662f\u5728Activity\u7684onDestroy\u65b9\u6cd5\u91cc\u8c03\u7528<\/p>\r\n\r\n\r\n<p>mHandler.removeCallbacksAndMessages(null);<\/p>\n\r\n\r\n\r\n<p>\u4f46\u662f\u4e0a\u9762\u8fd9\u4e2a\u65b9\u6cd5\u4e5f\u4e0d\u4e00\u5b9a\u5b8c\u5168\u80fd\u4fdd\u8bc1Handler\u53ef\u4ee5\u88ab\u56de\u6536\uff0c\u6bd4\u5982\uff1a<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img loading=\"lazy\" width=\"1081\" height=\"699\" src=\"http:\/\/122.152.205.50\/wordpress\/wp-content\/uploads\/2020\/07\/333.jpg\" alt=\"\" class=\"wp-image-1646\"\/><\/figure>\r\n\r\n\r\n\r\n<p>handler\u6d88\u606f\u91cc\u53c8\u641e\u4e86\u4e00\u4e2a\u533f\u540d\u5185\u90e8\u7c7bThread\uff0cThread\u6c38\u8fdc\u4e0d\u4f1a\u7ed3\u675f\uff0c\u5373\u4f7f\u8c03\u7528\u4e86mHandler.removeCallbacksAndMessages(null);\u4e5f\u907f\u514d\u4e0d\u4e86Handler\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img loading=\"lazy\" width=\"994\" height=\"444\" src=\"http:\/\/122.152.205.50\/wordpress\/wp-content\/uploads\/2020\/07\/4444.jpg\" alt=\"\" class=\"wp-image-1647\"\/><\/figure>\r\n\r\n\r\n\r\n<p>GC\u4e4b\u540e\uff0c\u53d1\u73b0Thread->Handler->Activity\uff0c\u5bfc\u81f4\u65e0\u6cd5\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<p>2\uff09\u5982\u679cHandler\u975e\u8981\u5b9a\u4e49\u6210\u533f\u540d\u5185\u90e8\u7c7b\uff0c\u53ef\u4ee5\u5b9a\u4e49\u6210\u9759\u6001\u53d8\u91cf\u3002<\/p>\r\n\r\n\r\n\r\n<p>#\u9759\u6001\u7684Handler\u7528\u5b8c\u4e4b\u540e\uff0c\u8bb0\u5f97\u8981\u7f6e\u4e3anull\uff0c\u5426\u5219\u8fd9\u4e2aHandler\u5b9e\u4f8b\u4f1a\u5e38\u9a7b\u5185\u5b58\uff0cGC\u4e5f\u65e0\u6cd5\u56de\u6536\uff0c\u76f4\u5230\u5e94\u7528\u7a0b\u5e8f\u88ab\u6740\u6b7b\u3002Handler\u7f6e\u4e3anull\uff0cGC\u4e5f\u4e0d\u4f1a\u7acb\u9a6c\u88ab\u56de\u6536\uff0c\u53ea\u6709Handler\u7684\u6d88\u606f\u5168\u90e8\u5904\u7406\u5b8c\u6bd5\u624d\u4f1a\u56de\u6536\u3002<\/p>\r\n\r\n\r\n\r\n<p>#Handler\u5b9a\u4e49\u6210static\u4e86\uff0c\u90a3\u4e48\u5b83\u66f4\u65b0View\u7684\u65f6\u5019\uff0cView\u542f\u4e0d\u662f\u4e5f\u8981\u5b9a\u4e49\u6210static\uff1f<\/p>\r\n\r\n\r\n\r\n<p><a href=\"https:\/\/www.cnblogs.com\/punkisnotdead\/p\/4943260.html\">https:\/\/www.cnblogs.com\/punkisnotdead\/p\/4943260.html<\/a><\/p>\r\n\r\n\r\n\r\n<p>\u4e0a\u9762\u8fd9\u7bc7\u6587\u7ae0\u63d0\u5230\u4e86\u5c06activity\u901a\u8fc7\u5f31\u5f15\u7528\u7684\u65b9\u5f0f\u4f20\u5165\u5230\u9759\u6001\u7684Handler\u4e2d<\/p>\r\n\r\n\r\n\r\n<p><\/p>\r\n<button class=\"simplefavorite-button\" data-postid=\"763\" data-siteid=\"1\" data-groupid=\"1\" data-favoritecount=\"0\" style=\"\">\u6536\u85cf <i class=\"sf-icon-star-empty\"><\/i><\/button>","protected":false},"excerpt":{"rendered":"<p>\u76ee\u5f55 \u4e00\u3001\u5185\u5b58\u6cc4\u6f0f\u7684\u6982\u5ff5\u4e8c\u3001\u5185\u5b58\u6cc4\u6f0f\u7684\u539f\u56e0\u4e09\u3001\u5982\u4f55\u53d1\u73b0\u5185\u5b58\u6cc4\u6f0f\u56db\u3001\u5e38\u89c1\u7684\u5185\u5b58\u6cc4\u6f0f\u5f62\u5f0f1.\u9759\u6001\u53d8\u91cf2. 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