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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>UI</title> | |
| <style type="text/css"> | |
| #loader { | |
| min-height: 100vh; | |
| display: flex; | |
| justify-content: center; | |
| align-items: center; | |
| text-align: center; | |
| } | |
| #loader h1 { | |
| color: black; | |
| font-family: Arial, Helvetica, sans-serif; | |
| font-size: 32px; | |
| line-height: normal; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="loader"> | |
| <h1> | |
| Please wait... application is loading | |
| </h1> | |
| </div> | |
| <script src="main.dart.js" type="application/javascript"></script> | |
| </body> | |
| </html> |
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| import 'dart:html'; | |
| void main() { | |
| print("sleeping..."); | |
| Future.delayed(Duration(seconds: 5), () { | |
| print("done sleeping"); | |
| // remove loader | |
| querySelector("#loader").remove(); | |
| // hide loader | |
| runApp(MyApp()); | |
| }); | |
| } |
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