{"id":75,"date":"2015-08-05T05:55:34","date_gmt":"2015-08-05T05:55:34","guid":{"rendered":"https:\/\/boochlin.com\/?p=75"},"modified":"2026-09-19T18:04:13","modified_gmt":"2026-09-19T18:04:13","slug":"android-home-screen-life-cycle","status":"publish","type":"post","link":"https:\/\/boochlin.com\/?p=75","title":{"rendered":"Android home screen life cycle."},"content":{"rendered":"

\u4e00\u822c\u7684activity life cycle \u00a0\u5927\u6982\u7db2\u8def\u4e0a\u5df2\u7d93\u63d0\u5230\u721b\u6389\u4e86<\/p>\n

\u60f3\u7576\u7136\u4e0d\u6703\u8ddf\u8005\u6dcc\u9019\u500b\u6df7\u6c34\uff0c\u4e0d\u904e\u9084\u662f\u8981\u5148\u6709\u57fa\u672c\u7684life cycle \u89c0\u5ff5<\/p>\n

\u9019\u6b21\u8981\u63d0\u7684\u662f Home Screen Life cycle.<\/strong><\/p>\n

activity life cycle<\/a><\/p>\n

\u5404\u4f4d\u5148\u611f\u53d7\u611f\u53d7\uff0c<\/p>\n

\u9019\u662f\u4e00\u822c\u7684\u60c5\u6cc1<\/p>\n

stateDiagram-v2\n    [*] --> NonExistent\n    NonExistent --> Created: onCreate()\n    Created --> Started: onStart()\n    Started --> Resumed: onResume() (\u524d\u666f\u904b\u884c\u4e2d)\n    Resumed --> Paused: onPause() (\u5931\u53bb\u7126\u9ede)\n    Paused --> Resumed: onResume()\n    Paused --> Stopped: onStop() (\u5b8c\u5168\u4e0d\u53ef\u898b)\n    Stopped --> Started: onRestart() -> onStart()\n    Stopped --> Destroyed: onDestroy()\n    Destroyed --> [*]<\/code><\/pre>\n
\u4f7f\u7528ap1 \u4e2d\uff0c\u5207\u63db\u5230 \u00a0ap2 \u6b63\u5e38\u4f86\u8aaa\u6703\u662f<\/p>\n
sequenceDiagram\n    autonumber\n    participant App1 as \u524d\u666f Activity 1\n    participant AMS as ActivityManagerService\n    participant App2 as \u65b0\u958b\u555f Activity 2 \/ Home Launcher\n\n    App1->>AMS: \u4f7f\u7528\u8005\u89f8\u767c\u5207\u63db \/ \u9ede\u64ca Home \u9375\n    AMS->>App1: 1. \u547c\u53eb onPause() (\u66ab\u505c\u52d5\u756b\/\u91cb\u653e\u7368\u4f54\u786c\u9ad4)\n    App1-->>AMS: \u5b8c\u6210 onPause\n    AMS->>App2: 2. \u547c\u53eb onCreate() \/ onStart() \/ onResume()\n    App2-->>AMS: \u5b8c\u6210 onResume (Activity 2 \u9032\u5165\u524d\u666f)\n    AMS->>App1: 3. \u547c\u53eb onStop() (Activity 1 \u5b8c\u5168\u79fb\u5165\u80cc\u666f)<\/code><\/pre>\n
ap1 \u00a0\u9032\u5165 \u00a0onPause \u2014-> \u00a0ap2 \u00a0\u9032\u5165 onResume<\/strong><\/h4>\n
\u00a0<\/p>\n
\u7e7c\u7e8c\u5ef6\u4f38\u4f86\u601d\u8003\uff0c\u6309\u4e86home button \u6703\u767c\u751f\u600e\u6a23\u7684\u72c0\u614b\u5207\u63db<\/p>\n
ap1 \u00a0\u9032\u5165 \u00a0onPause \u2014-> home ap \u00a0\u9032\u5165 onResume.<\/strong><\/h4>\n
home ap \u00a0\u4e5f\u662f\u4e00\u7a2eapplication \u6240\u4ee5\u7576\u7136\u4e5f\u7b26\u5408\u9019\u500b\u751f\u547d\u9031\u671f<\/p>\n
home button \u53ea\u662f\u63d0\u4f9b\u4e00\u7a2e\u9032\u5165home screen\u7684\u624b\u6cd5<\/p>\n
\u9700\u8981\u88dc\u5145\u7684\u662f home button \u5207\u5230 home screen \u7684\u60c5\u6cc1<\/p>\n
\u6703\u591a\u9032\u5165\u4e00\u500b onNewIntent \u7684\u72c0\u614b\uff0c\u6240\u4ee5\u8981\u7279\u5225\u8655\u7406 home button event<\/p>\n
 \u5247\u662f\u5728\u9019\u4f5c\u624b\u8173<\/p>\n
\u628ahome button \u88dc\u5b8c<\/h4>\n
ap1 \u9032\u5165 onPause \u2014\u2013> home ap \u9032\u5165 onNewIntent \u2014\u2013> home ap \u9032\u5165 onResume<\/strong><\/p>\n
\u597d\u4e86\uff0c\u7b2c\u4e00\u968e\u6bb5 home button left cycle \u641e\u5b9a<\/p>\n
\u63a5\u4e0b\u4f86\u8acb\u601d\u8003\u4e00\u4e0b,onResume \u548c onPause \u72c0\u614b\u5dee\u5728\u54ea\u88e1<\/p>\n
\u4e3b\u8981\u5728\u65bc ap view \u662f\u5426\u986f\u793a\u5728foreground\uff0c<\/p>\n
onResume \u662fview \u986f\u793a\u5728foreground<\/p>\n
onPause \u662f view \u4e0d\u986f\u793a\u5728foreground<\/p>\n
\u7b2c\u4e8c\u500b\u554f\u984c\u662f<\/h4>\n
home screen \u5df2\u7d93\u5728onResume \u968e\u6bb5\uff0c\u986f\u793a\u5728 foreground<\/p>\n
\u9019\u6642\u5019 click home button \u6703\u767c\u751f\u4f55\u4e8b\uff1f<\/p>\n
home ap \u9032\u5165 onPause \u2013> home ap \u9032\u5165 onNewIntent \u2013> home ap \u9032\u5165 onreusme<\/h4>\n
\u7d50\u8ad6\u662f home screen \u81ea\u5df1\u73a9\u81ea\u5df1\u7684\u90a3\u4e00\u5957<\/p>\n
 \u4e00\u4eba\u5206\u98fe\u5169\u89d2 \u81ea\u5df1\u77ac\u9593 \u6d88\u5931 \u518d\u51fa\u73fe<\/p>\n
\u6703\u63d0\u5230\u9019\u500b\uff0c\u4e3b\u8981\u662f\u63d0\u9192\u767c\u767chome screen ap \u8655\u7406home button event<\/p>\n
 \u4e5f\u8981\u540c\u6642\u8003\u616e onPause \u548c onresume \u7684\u89f8\u767c\u95dc\u4fc2\uff0c\u800c\u4e0d\u80fd\u55ae\u7d14\u8003\u616e onNewIntent \u7684 handle.<\/p>\n
 \u7b97\u662fhome screen\u7684\u7279\u6b8a\u6848\u4f8b\uff0c\u8207\u4e00\u822c ap \u4e0d\u540c\u7684\u5730\u65b9<\/p>\n
\u88dc\u5145\uff1aonPause \u2192 onNewIntent \u2192 onResume \u7684\u751f\u547d\u9031\u671f\u6d41\u7a0b\u4e26\u975e Home Screen \u7368\u6709\u7684\u7279\u6b8a\u884c\u70ba\uff0c\u800c\u662f\u6240\u6709 LaunchMode \u8a2d\u5b9a\u70ba singleTop\u3001singleTask \u6216 singleInstance \u7684 Activity \u5728 Foreground \u6642\u63a5\u6536\u65b0 Intent \u7684\u6a19\u6e96\u751f\u547d\u9031\u671f\u3002Home Screen \u4e4b\u6240\u4ee5\u5448\u73fe\u6b64\u884c\u70ba\uff0c\u6b63\u662f\u56e0\u70ba\u5176\u901a\u5e38\u88ab\u8a2d\u5b9a\u70ba singleTask\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u822c\u7684activity life cycle \u00a0\u5927\u6982\u7db2\u8def\u4e0a\u5df2\u7d93\u63d0\u5230\u721b\u6389\u4e86 \u60f3\u7576\u7136\u4e0d\u6703\u8ddf\u8005\u6dcc\u9019\u500b\u6df7\u6c34\uff0c\u4e0d\u904e\u9084\u662f\u8981 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[167],"tags":[170,177,239],"_links":{"self":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/75"}],"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=75"}],"version-history":[{"count":5,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/75\/revisions"}],"predecessor-version":[{"id":1560,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/75\/revisions\/1560"}],"wp:attachment":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=75"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=75"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=75"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}