{"id":675,"date":"2023-04-29T16:11:31","date_gmt":"2023-04-29T08:11:31","guid":{"rendered":"http:\/\/gjweb.top\/?p=675"},"modified":"2023-08-01T21:04:33","modified_gmt":"2023-08-01T13:04:33","slug":"%e4%b8%a4%e6%ac%a1%e8%bf%94%e5%9b%9e%e9%80%80%e5%87%ba%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/gjweb.top\/?p=675","title":{"rendered":"\u4e24\u6b21\u8fd4\u56de\u9000\u51fa\u5e94\u7528\u7a0b\u5e8f"},"content":{"rendered":"\n<p>\u5728\u89c6\u56fe\u5c42\u7684\u4f7f\u7528 WillPopScope \u505a\u6839\u7ec4\u4ef6<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import 'package:flutter\/material.dart';\r\nclass HomeView extends GetView&lt;HomeController> {\r\n    HomeView({Key? key}) : super(key: key);\r\n    @override\r\n  \tWidget build(BuildContext context) {\r\n        return Obx(\uff08\uff09{\r\n            return WillPopScope(\r\n            \tonWillPop: ()async{\r\n                    \/* \u5224\u65ad\u4e24\u79d2\u5185\u70b9\u51fb\u4e24\u6b21\u8fd4\u56de\u6309\u94ae\u5219\u9000\u51faAPP *\/\r\n                    if(controller.lastPopTime.value == null || DateTime.now().difference(controller.lastPopTime.value) > Duration(seconds: 2)){\r\n                        Fluttertoast.showToast(\r\n                            msg: \"\u5728\u6309\u4e00\u6b21\u9000\u51fa\u5e94\u7528\",\r\n                            toastLength: Toast.LENGTH_SHORT,\r\n                            gravity: ToastGravity.CENTER,\r\n                            timeInSecForIosWeb: 1,\r\n                            backgroundColor: Color.fromARGB(57, 0, 0, 0),\r\n                            textColor: Colors.white,\r\n                            fontSize: 16.0\r\n                        );\r\n                        controller.setLastPopTime();\r\n                    }else{\r\n                        \/* \u9000\u51faapp *\/\r\n                        await SystemChannels.platform.invokeMethod('SystemNavigator.pop');\r\n                    }\r\n                    return false;\r\n                },\r\n                child:Scaffold(...)\r\n            )\r\n        })\r\n    }\r\n}<\/code><\/pre>\n\n\n\n<p>\u5728 controller \u7ec4\u4ef6\u4e2d\u8bbe\u7f6e\u65f6\u95f4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/* \u76d1\u542c\u518d\u6309\u4e00\u6b21\u9000\u51faAPP *\/\r\nvar lastPopTime = DateTime.now().obs;\r\n\/* \u786e\u8ba4\u9000\u51faAPP *\/ \r\nsetLastPopTime(){\r\n    lastPopTime.value = DateTime.now();\r\n    update();\r\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u89c6\u56fe\u5c42\u7684\u4f7f\u7528 WillPopScope \u505a\u6839\u7ec4\u4ef6 \u5728 controller \u7ec4\u4ef6\u4e2d\u8bbe\u7f6e\u65f6\u95f4<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63],"tags":[],"class_list":["post-675","post","type-post","status-publish","format-standard","hentry","category-flutter"],"_links":{"self":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/675","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=675"}],"version-history":[{"count":2,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions"}],"predecessor-version":[{"id":796,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions\/796"}],"wp:attachment":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}