{"id":10861,"date":"2021-09-08T14:40:48","date_gmt":"2021-09-08T06:40:48","guid":{"rendered":"https:\/\/www.bookcard.net\/wordpress\/?p=10861"},"modified":"2021-09-08T14:40:48","modified_gmt":"2021-09-08T06:40:48","slug":"android_application","status":"publish","type":"post","link":"https:\/\/www.bookcard.net\/wordpress\/android_application\/","title":{"rendered":"Android\u7a0b\u5f0f\u5165\u53e3Application"},"content":{"rendered":"<figure id=\"attachment_10862\" aria-describedby=\"caption-attachment-10862\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2021\/09\/Android_Application.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10862\" src=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2021\/09\/Android_Application.jpg\" alt=\"Android\u7a0b\u5f0f\u5165\u53e3Application\" width=\"1280\" height=\"800\" srcset=\"https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2021\/09\/Android_Application.jpg 1280w, https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2021\/09\/Android_Application-300x188.jpg 300w, https:\/\/www.bookcard.net\/wordpress\/wp-content\/uploads\/2021\/09\/Android_Application-768x480.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/a><figcaption id=\"caption-attachment-10862\" class=\"wp-caption-text\">Android\u7a0b\u5f0f\u5165\u53e3Application<\/figcaption><\/figure>\n<p>Android\u5514\u4f3cWindow\u6709Winmain()\/main()\u4f5c\u7a0b\u5f0f\u5165\u53e3. \u800cAndroid\u7528Application\u4f5c\u7a0b\u5f0f\u5165\u53e3. \u6bd4Activity\u66f4\u65e9\u8abf\u7528,\u4e5f\u5514\u6703\u56e0\u65b9\u5411\u6539\u8b8a\u91cd\u8907\u8abf\u7528onCreate().<\/p>\n<p>\u5c07Application.onCreate()\u7576main()\u7528. \u5c07\u7a0b\u5f0f\u300e\u521d\u6b64\u300fInit()\u519a\u8fa6\u721b\u6446\u4f55\u4fc2\u5ea6.<\/p>\n<p>&nbsp;<\/p>\n<ol>\n<li>\u751f\u6c38MainApplication\u7ee7\u627fApplication \u8986\u76d6onCreate()<\/li>\n<\/ol>\n<table>\n<tbody>\n<tr>\n<td width=\"575\">class MainApplication extends Application<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ol start=\"2\">\n<li>\u914d\u7f6e\u300exml\u300f<\/li>\n<\/ol>\n<table>\n<tbody>\n<tr>\n<td width=\"575\">&lt;application android:name=&#8221;.MainApplication&#8221; &gt;&lt;\/application&gt;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ol start=\"3\">\n<li>\u4fc2onCreate()\u300e\u521d\u6b64\u300fInit()\u7a0b\u5f0f<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p>public class MainApplication extends Application {<\/p>\n<p>\/\/ \u5168\u5c40\u53d8\u91cf,\u5e94\u7528\u7a0b\u5e8f\u53e5\u67c4<\/p>\n<p>private static MainApplication singleton;<\/p>\n<p>\/\/\u8fd4\u56de\u5e94\u7528\u7a0b\u5e8f\u5b9e\u4f8b<\/p>\n<p>public static MainApplication getInstance() {<\/p>\n<p>return singleton;<\/p>\n<p>}<\/p>\n<p>\/\/\u521b\u5efa\u5e94\u7528\u7a0b\u5e8f\u65f6\u8c03\u7528<\/p>\n<p>@Override<\/p>\n<p>public final void onCreate(){<\/p>\n<p>Context context;<\/p>\n<p>singleton = this;\/\/<\/p>\n<p>super.onCreate();<\/p>\n<p>context = this.getApplicationContext();<\/p>\n<p>\/\/ \u521d\u6b64<\/p>\n<p>}<\/p>\n<p>\/\/ \u8a18\u61b6\u9ad4\u4f4e<\/p>\n<p>@Override<\/p>\n<p>public final void onLowMemory() {<\/p>\n<p>super.onLowMemory();<\/p>\n<p>}<\/p>\n<p>\/\/ \u91ca\u653e\u61b6\u9ad4\u4f4e<\/p>\n<p>@Override<\/p>\n<p>public final void onTrimMemory(int level) {<\/p>\n<p>super.onTrimMemory(level);<\/p>\n<p>}<\/p>\n<p>\/\/ \u6539\u53d8\u914d\u7f6e\u65f6\u8c03\u7528<\/p>\n<p>@Override<\/p>\n<p>public final void onConfigurationChanged(Configuration newConfig) {<\/p>\n<p>super.onConfigurationChanged(newConfig);<\/p>\n<p>}<\/p>\n<p>}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Android\u5514\u4f3cWindow\u6709Winmain()\/main()\u4f5c\u7a0b\u5f0f\u5165\u53e3. \u800cAndroid\u7528Applica &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.bookcard.net\/wordpress\/android_application\/\" class=\"more-link\">\u7e7c\u7e8c\u95b1\u8b80 <span class=\"screen-reader-text\">Android\u7a0b\u5f0f\u5165\u53e3Application<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[2],"class_list":["post-10861","post","type-post","status-publish","format-standard","hentry","category-android","tag-android","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/10861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/comments?post=10861"}],"version-history":[{"count":1,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/10861\/revisions"}],"predecessor-version":[{"id":10863,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/10861\/revisions\/10863"}],"wp:attachment":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/media?parent=10861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/categories?post=10861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/tags?post=10861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}