dart-html

问题 For Example, I have a variable like this. var fooBar = 12; I want a something like this in Dart lang. print_var_name(fooBar); which prints: fooBar How can I achieve that? Is this even possible? Thank you. 回答1: There is no such thing in Dart for the web or for Flutter. Reflection can do that, but reflection is only supported in the server VM because it hurts tree-shaking. You need to write code for that manually or use code generation where you need that. An example class SomeClass { String

问题 I have a request in this form: http://website/index.html?name=MyName&token=12345 Is there a way how to extract name and token from this url? There is always an option to iterate through all characters and save it that way, but I am looking for more elegant solution in Dart. 回答1: var uri = Uri.parse('http://website/index.html?name=MyName&token=12345'); uri.queryParameters.forEach((k, v) { print('key: $k - value: $v'); }); key: name - value: MyName key: token - value: 12345 来源： https:/

问题 Open issue at GitHub I am using HTML/CSS to create PDF views. So, In some cases we need render images from the local asset-folder. When we try to render the file from assets folder image is not displaying. How to resolve this issue? iOS-Screenshot: Full Source Code: RenderHtml.dart import 'package:flutter/material.dart'; import 'dart:async'; import 'dart:io'; import 'package:flutter_full_pdf_viewer/flutter_full_pdf_viewer.dart'; import 'package:flutter_html_to_pdf/flutter_html_to_pdf.dart';

问题 It does not appear there is a clear interception of JS Promises by the Interop or dart2JS. ServiceWorkerContainer swContain = window.navigator.serworker; swContain.register(workerScriptURI,scope).then((ServiceWorkerRegistration rego){ /// Here confirm scope and the state, handle and unregister if required. )}; Yet it appears to be no way of pulling this off without wrapping the promise and a completer. When I then I can not get to work in a dependable fashion. Long post here: https://groups

来源： https://stackoverflow.com/questions/57016108/how-to-get-user-input-on-dartpad-online

来源： https://stackoverflow.com/questions/57016108/how-to-get-user-input-on-dartpad-online

问题 Hi I developed a Flutter Plugin flutter_tex. It's based on the WebView. How do I add Flutter Web support for this?? I tried this example to show my HTML content. import 'dart:ui' as ui; void forWeb() { if(kIsWeb){ // ignore: undefined_prefixed_name ui.platformViewRegistry.registerViewFactory( 'hello-world-html', (int viewId) => uni_html.IFrameElement() ..width = '640' ..height = '360' ..src = 'https://www.youtube.com/embed/IyFZznAk69U' ..style.border = 'none'); Directionality( textDirection:

问题 When defining a Future as follows: Future<HttpRequest> httpRequest = HttpRequest.request(url, method: method, requestHeaders: requestHeaders); I want to handle a timeout after 5 secondes. I'm writing my code like this : httpRequest.timeout(const Duration (seconds:5),onTimeout : _onTimeout()); Where my timeout function is : _onTimeout() => print("Time Out occurs"); According to the Future timeout() method documentation , If onTimeout is omitted, a timeout will cause the returned future to

问题 Is it possible to listen to events that have no explicit accessor on an ElementList? For example I can do the following on a single element: this.querySelector(".js-popover-link").on["on-tap"].listen((event) { print("Event Triggered"); }); However, the following is not possible on the ElementList returned from querySelectorAll: this.querySelectorAll(".js-popover-link").on["on-tap"].listen((event) { print("Event Triggered"); }); Is there a simple way to do this? 回答1: List<StreamSubscription>

问题 I try to find the caret position in an editable div. Also it should be nice to get the selected text in this div. I try to assimilate this: Editable Div Caret Position But it dosen’t work. I'll be happy to give any Idea. Thanks in advance Some code snippet HTML <a on-click="{{chooseMenu}}" which-menu="1">Menu 1</a> Dart void chooseMenu(Event event, var detail, var target) { event.preventDefault(); event.stopPropagation(); Selection sel; Range range; sel = window.getSelection(); if(sel != null