Web我有一個 Flutter 應用程序,其屏幕使用數組有條件地呈現。 無論如何,我需要有一個像這樣的彈出屏幕: 如果已將我所有的 彈出屏幕 存儲在一個數組中,並將主屏幕和彈出屏幕呈現在一個堆棧中。 我不知道這是否是最好的解決方案,我想我會遇到性能問題。 WebMar 15, 2024 · Flutter showDialog with navigator key rather than passing context. Currently its very hectic to show dialog from any layer of code in app just because one has to pass context in it. Hence i thought to pass navigatorKey.currentContext (Navigator key is a global key passed to Material app navigatorKey parameter) to show dialog.
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WebJan 8, 2024 · In Flutter, a normal dialog can be closed manually when the user taps somewhere outside it. However, a loading dialog should NOT be closed like that. It should only go away automatically when the future finishes., like so: // show the loading dialog showDialog( // The user CANNOT close this dialog by pressing outsite it … WebDec 4, 2024 · So, if you use it be careful that the showDialog is not dismissable barrierDismissible: false and that the AlertDialog hasn't buttons that dismiss it. Otherwise, you can use a Timer: Timer timer = Timer (Duration (milliseconds: 3000), () { Navigator.of (context, rootNavigator: true).pop (); }); showDialog ( ... shutter bicycle headlights
Flutter showDialog with navigator key rather than passing context
WebJan 16, 2024 · showDialog ( context: context, builder: (context) => Dialog ( val: vale, ), ).then ( (valueFromDialog) { // use the value as you wish print (valueFromDialog); }); The .then () will be triggered after the user selects an option on your Dialog. Share Follow answered Jan 16, 2024 at 11:52 J. S. 8,559 2 35 44 1 WebAug 29, 2024 · void showFancyCustomDialog (BuildContext context) { Dialog fancyDialog = Dialog ( shape: RoundedRectangleBorder ( borderRadius: BorderRadius.circular (12.0), ), child: Container ( … WebOct 10, 2024 · Generally to show some information on the button click on warning or successful message, the ShowDialog is used. But Please note that the ShowDialog is now deprecated. We will use Alert Box to show the alert message. The below code shows how to show Alert dialog box in flutter. It generally takes user permission and process further. the pain medication left claudia