{"id":3414,"date":"2021-01-11T15:06:27","date_gmt":"2021-01-11T07:06:27","guid":{"rendered":"http:\/\/122.152.205.50\/wordpress\/?p=3414"},"modified":"2021-01-13T15:52:15","modified_gmt":"2021-01-13T07:52:15","slug":"android%e7%b1%bb%e5%8a%a0%e8%bd%bd","status":"publish","type":"post","link":"http:\/\/xinyiworld.top\/wordpress_it\/?p=3414","title":{"rendered":"Android\u7c7b\u52a0\u8f7d"},"content":{"rendered":"\n<p><a href=\"http:\/\/liuwangshu.cn\/application\/classloader\/2-android-classloader.html\">http:\/\/liuwangshu.cn\/application\/classloader\/2-android-classloader.html<\/a>\uff08\u5218\u671b\u8212\uff09<\/p>\n\n\n\n<p><a href=\"https:\/\/juejin.cn\/post\/6844904006507200519\">https:\/\/juejin.cn\/post\/6844904006507200519<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/cloud.tencent.com\/developer\/article\/1199009\">https:\/\/cloud.tencent.com\/developer\/article\/1199009<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/liuwangshu.cn\/application\/classloader\/2-android-classloader.html\">http:\/\/liuwangshu.cn\/application\/classloader\/2-android-classloader.html<\/a>\uff08\u4f5c\u8005\uff1a\u5218\u671b\u8212\uff09<\/p>\n\n\n\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=3414\/#android%E7%B1%BB%E5%8A%A0%E8%BD%BD%E5%99%A8%E4%B8%8Ejava%E7%B1%BB%E5%8A%A0%E5%99%A8%E7%9A%84%E5%8C%BA%E5%88%AB\" title=\"android\u7c7b\u52a0\u8f7d\u5668\u4e0ejava\u7c7b\u52a0\u5668\u7684\u533a\u522b\">android\u7c7b\u52a0\u8f7d\u5668\u4e0ejava\u7c7b\u52a0\u5668\u7684\u533a\u522b<\/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=3414\/#android%E7%B1%BB%E5%8A%A0%E8%BD%BD%E4%B8%8Ejava%E7%B1%BB%E5%8A%A0%E8%BD%BD%E7%9A%84%E7%9B%B8%E5%90%8C%E7%82%B9\" title=\"android\u7c7b\u52a0\u8f7d\u4e0ejava\u7c7b\u52a0\u8f7d\u7684\u76f8\u540c\u70b9\">android\u7c7b\u52a0\u8f7d\u4e0ejava\u7c7b\u52a0\u8f7d\u7684\u76f8\u540c\u70b9<\/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=3414\/#android%E7%B1%BB%E5%8A%A0%E8%BD%BD%E5%99%A8%E7%9A%84%E7%B1%BB%E5%9E%8B\" title=\"android\u7c7b\u52a0\u8f7d\u5668\u7684\u7c7b\u578b\">android\u7c7b\u52a0\u8f7d\u5668\u7684\u7c7b\u578b<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=3414\/#1BootClassLoader\" title=\"1)BootClassLoader \">1)BootClassLoader <\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=3414\/#2PathClassLoader\" title=\"2)PathClassLoader\">2)PathClassLoader<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=3414\/#%E8%BF%90%E8%A1%8C%E4%B8%80%E4%B8%AAAndroid%E7%A8%8B%E5%BA%8F%E9%9C%80%E8%A6%81%E7%94%A8%E5%88%B0%E5%87%A0%E7%A7%8D%E7%B1%BB%E5%9E%8B%E7%9A%84%E7%B1%BB%E5%8A%A0%E8%BD%BD%E5%99%A8\" title=\"\u8fd0\u884c\u4e00\u4e2aAndroid\u7a0b\u5e8f\u9700\u8981\u7528\u5230\u51e0\u79cd\u7c7b\u578b\u7684\u7c7b\u52a0\u8f7d\u5668 \">\u8fd0\u884c\u4e00\u4e2aAndroid\u7a0b\u5e8f\u9700\u8981\u7528\u5230\u51e0\u79cd\u7c7b\u578b\u7684\u7c7b\u52a0\u8f7d\u5668 <\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"android%E7%B1%BB%E5%8A%A0%E8%BD%BD%E5%99%A8%E4%B8%8Ejava%E7%B1%BB%E5%8A%A0%E5%99%A8%E7%9A%84%E5%8C%BA%E5%88%AB\"><\/span>android\u7c7b\u52a0\u8f7d\u5668\u4e0ejava\u7c7b\u52a0\u5668\u7684\u533a\u522b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>1.java\u7c7b\u52a0\u8f7d\u5668\u52a0\u8f7d\u7684\u6587\u4ef6\u662fclass\uff0candroid\u7c7b\u52a0\u8f7d\u5668\u52a0\u8f7d\u7684\u662fdex\u3002<\/p>\n\n\n\n<p>2.\u5b50\u7c7b\u52a0\u8f7d\u5668\u4e0d\u4e00\u5b9a\u5c31\u7ee7\u627f\u7236\u7c7b\u52a0\u8f7d\u5668<\/p>\n\n\n\n<p>3.java\u7684BootClassLoader\u662f\u7528c++\u5b9e\u73b0\uff0candroid\u7684BootClassLoader\u662f\u7528Java\u5b9e\u73b0\u3002<\/p>\n\n\n\n<h2 id=\"mce_3\"><span class=\"ez-toc-section\" id=\"android%E7%B1%BB%E5%8A%A0%E8%BD%BD%E4%B8%8Ejava%E7%B1%BB%E5%8A%A0%E8%BD%BD%E7%9A%84%E7%9B%B8%E5%90%8C%E7%82%B9\"><\/span>android\u7c7b\u52a0\u8f7d\u4e0ejava\u7c7b\u52a0\u8f7d\u7684\u76f8\u540c\u70b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>1.\u90fd\u9075\u5faa\u53cc\u4eb2\u59d4\u6258\u673a\u5236<\/p>\n\n\n\n<h2 id=\"mce_1\"><span class=\"ez-toc-section\" id=\"android%E7%B1%BB%E5%8A%A0%E8%BD%BD%E5%99%A8%E7%9A%84%E7%B1%BB%E5%9E%8B\"><\/span>android\u7c7b\u52a0\u8f7d\u5668\u7684\u7c7b\u578b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Android\u4e2d\u7684ClassLoader\u7c7b\u578b\u548cJava\u4e2d\u7684ClassLoader\u7c7b\u578b\u7c7b\u4f3c\uff0c\u4e5f\u5206\u4e3a\u4e24\u79cd\u7c7b\u578b\uff0c\u5206\u522b\u662f\u7cfb\u7edfClassLoader\u548c\u81ea\u5b9a\u4e49ClassLoader\u3002\u5176\u4e2d\u7cfb\u7edfClassLoader\u4e3b\u8981\u67093\u79cd\u5206\u522b\u662fBootClassLoader\u3001PathClassLoader\u548cDexClassLoader\u3002 <\/p>\n\n\n\n<p>PathClassLoader\u548cDexClassLoader\uff0c\u90fd\u662f\u5bf9BaseDexClassLoader\u7684\u4e00\u5c42\u7b80\u5355\u7684\u5c01\u88c5\uff0c\u6240\u4ee5\u53ea\u8981\u7814\u7a76BaseDexClassLoader\u7c7b\u5373\u53ef\u3002<\/p>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"1BootClassLoader\"><\/span>1)BootClassLoader <span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u521b\u5efa\u65f6\u673a\uff1a Zygote\u8fdb\u7a0b\u7684\u5165\u53e3\u65b9\u6cd5\u4e2d\u521b\u5efa\u7684 <\/p>\n\n\n\n<h3 id=\"mce_22\"><span class=\"ez-toc-section\" id=\"2PathClassLoader\"><\/span>2)PathClassLoader<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p> \u5728Zygote\u8fdb\u7a0b\u521b\u5efaSystemServer\u8fdb\u7a0b\u65f6\u521b\u5efa\u7684<\/p>\n\n\n\n<h2><span class=\"ez-toc-section\" id=\"%E8%BF%90%E8%A1%8C%E4%B8%80%E4%B8%AAAndroid%E7%A8%8B%E5%BA%8F%E9%9C%80%E8%A6%81%E7%94%A8%E5%88%B0%E5%87%A0%E7%A7%8D%E7%B1%BB%E5%9E%8B%E7%9A%84%E7%B1%BB%E5%8A%A0%E8%BD%BD%E5%99%A8\"><\/span>\u8fd0\u884c\u4e00\u4e2aAndroid\u7a0b\u5e8f\u9700\u8981\u7528\u5230\u51e0\u79cd\u7c7b\u578b\u7684\u7c7b\u52a0\u8f7d\u5668 <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>ClassLoader classLoader = getClass().getClassLoader();\n        while (classLoader != null){\n            Log.d(\"TAG\", \"onCreate: \" + classLoader);\n            classLoader = classLoader.getParent();\n        }<\/code><\/pre>\n\n\n\n<p>\u6253\u5370\u65e5\u5fd7\uff1a<\/p>\n\n\n\n<p>dalvik.system.<strong>PathClassLoader<\/strong>[DexPathList[[zip file \"\/data\/app\/com.szlanyou.classloaderdemo-cCHAoEdnNvzVncxFHe8K_w==\/base.apk\"],<br> nativeLibraryDirectories=[\/data\/app\/com.szlanyou.classloaderdemo-cCHAoEdnNvzVncxFHe8K_w==\/lib\/arm64, \/system\/lib64, \/hw_product\/lib64, \/system\/product\/lib64, \/prets\/lib64]]]<\/p>\n\n\n\n<p>java.lang.<strong>BootClassLoader<\/strong>@fc6ebe4<\/p>\n\n\n\n<p><\/p>\n<button class=\"simplefavorite-button\" data-postid=\"3414\" 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>http:\/\/liuwangshu.cn\/application\/classloader\/2-and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[113],"tags":[],"_links":{"self":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts\/3414"}],"collection":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3414"}],"version-history":[{"count":25,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts\/3414\/revisions"}],"predecessor-version":[{"id":3548,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts\/3414\/revisions\/3548"}],"wp:attachment":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3414"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}