{"id":705,"date":"2025-09-21T13:27:22","date_gmt":"2025-09-21T13:27:22","guid":{"rendered":"https:\/\/boochlin.com\/?p=705"},"modified":"2025-11-12T12:17:53","modified_gmt":"2025-11-12T12:17:53","slug":"disposableeffect-%e8%88%87-lifecycleeventobserver","status":"publish","type":"post","link":"https:\/\/boochlin.com\/?p=705","title":{"rendered":"DisposableEffect \u8207 LifecycleEventObserver"},"content":{"rendered":"\n<p><a href=\"https:\/\/developer.android.com\/develop\/ui\/compose\/side-effects\">\u5728 Jetpack Compose \u4e2d\uff0c\u901a\u5e38\u6703\u4f7f\u7528 DisposableEffect \u4f86\u8207 LifecycleEventObserver \u4e92\u52d5\uff0c\u4ee5\u4fbf\u5728 Composable \u4e2d\u5b89\u5168\u5730\u76e3\u807d Android \u7684\u751f\u547d\u9031\u671f\u3002<\/a><\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n@Composable\nfun HomeScreen(lifecycleOwner: LifecycleOwner = LocalLifecycleOwner.current) {\n    DisposableEffect(lifecycleOwner) {\n        val observer = LifecycleEventObserver { source, event -&gt;\n            if (event == Lifecycle.Event.ON_RESUME) {\n                Log.d(&quot;ComposeLifecycle&quot;, &quot;Screen is resumed!&quot;)\n            }\n        }\n\n        \/\/ \u6dfb\u52a0\u89c0\u5bdf\u8005\n        lifecycleOwner.lifecycle.addObserver(observer)\n\n        \/\/ onDispose \u5340\u584a\u6703\u5728 Composable \u96e2\u958b\u756b\u9762\u6642\u57f7\u884c\n        onDispose {\n            \/\/ \u79fb\u9664\u89c0\u5bdf\u8005\uff0c\u907f\u514d\u8a18\u61b6\u9ad4\u6d29\u6f0f\n            lifecycleOwner.lifecycle.removeObserver(observer)\n        }\n    }\n    \/\/ ... \u4f60\u7684 UI\n}\n<\/pre><\/div>","protected":false},"excerpt":{"rendered":"<p>\u5728 Jetpack Compose \u4e2d\uff0c\u901a\u5e38\u6703\u4f7f\u7528 DisposableEffect \u4f86\u8207 LifecycleEventObserver \u4e92\u52d5\uff0c\u4ee5\u4fbf\u5728 Composable \u4e2d\u5b89\u5168\u5730\u76e3\u807d Androi&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"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\/705"}],"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=705"}],"version-history":[{"count":5,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/705\/revisions"}],"predecessor-version":[{"id":793,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/705\/revisions\/793"}],"wp:attachment":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}