dart

问题 I need to use the latest source code of a package and the latest source hasn't been published yet. What should I write into pubspec.yaml to get a package in github? The code bellow doesn't work. It doesn't download the package and I can't import it into my source code dependencies: flutter: sdk: flutter carousel_pro: git: url: https://github.com/jlouage/flutter-carousel-pro.git 回答1: Example of pubsec.yaml dependencies: flutter: sdk: flutter carousel_pro: git: url: git://github.com/jlouage

问题 I need to use the latest source code of a package and the latest source hasn't been published yet. What should I write into pubspec.yaml to get a package in github? The code bellow doesn't work. It doesn't download the package and I can't import it into my source code dependencies: flutter: sdk: flutter carousel_pro: git: url: https://github.com/jlouage/flutter-carousel-pro.git 回答1: Example of pubsec.yaml dependencies: flutter: sdk: flutter carousel_pro: git: url: git://github.com/jlouage

问题 I am trying to setup Flutter in windows 10. I have: Android Studio installed Visual Studio Code When I run "andoid doctor" in command prompt is shows no errors: But When I try to configure VSCode Editer with steps given in https://flutter.io/get-started/editor/ It Throws error as show below: I tried after setting environment variable as: ANDROID_HOME = F:\Program Files\Android Even after setting the above I get the same error. 回答1: My device was not getting detected by VS Code so , when i

问题 My cat jumped onto my keyboard while I was coding in Dart using VS Code. The result was an enormous increase in font size for both the editor and the sidebar. To no avail I tried Ctrl - . I was unable to access settings because the large font size made navigating in settings impossible. In despair, I uninstalled VS Code, Flutter, and Dart. Using an administrator account (Win 7) I downloaded all three and reinstalled. I opened VS Code and found that the font size was restored. But when I

问题 I am trying to setup Flutter in windows 10. I have: Android Studio installed Visual Studio Code When I run "andoid doctor" in command prompt is shows no errors: But When I try to configure VSCode Editer with steps given in https://flutter.io/get-started/editor/ It Throws error as show below: I tried after setting environment variable as: ANDROID_HOME = F:\Program Files\Android Even after setting the above I get the same error. 回答1: My device was not getting detected by VS Code so , when i

问题 i am trying to understand, how dart event loop works. I read the event loop article from the website The Event Loop and Dart and the author explain pretty good how event loop in dart works. But what i don't understand is, how event get queue. For example new Future(() => 21) .then((v) => v*2) .then((v) => print(v)); Will here dart gonna create three entries in the event queue or just one? I know, that the class Future is responsible for delay execution and when i create an object from it like

问题 I have the following list, that I am trying to re-order/ sort by the DateTime. import 'package:intl/intl.dart'; //don't forget to add under dependencies pubspec.yml "intl: ^0.15.8" List products = []; //adding into the new list from raw API list for(final item in rawProducts){ var parsedDate = DateTime.parse.(item['expiryDate']); tmpArray = { 'id': item['id'], 'name': item['name'], 'price': item['price'], 'expiry': parsedDate } products.add(tmpArray); } } List products = [ {id: 1242, name:

问题 I have the following list, that I am trying to re-order/ sort by the DateTime. import 'package:intl/intl.dart'; //don't forget to add under dependencies pubspec.yml "intl: ^0.15.8" List products = []; //adding into the new list from raw API list for(final item in rawProducts){ var parsedDate = DateTime.parse.(item['expiryDate']); tmpArray = { 'id': item['id'], 'name': item['name'], 'price': item['price'], 'expiry': parsedDate } products.add(tmpArray); } } List products = [ {id: 1242, name:

问题 I have the following list, that I am trying to re-order/ sort by the DateTime. import 'package:intl/intl.dart'; //don't forget to add under dependencies pubspec.yml "intl: ^0.15.8" List products = []; //adding into the new list from raw API list for(final item in rawProducts){ var parsedDate = DateTime.parse.(item['expiryDate']); tmpArray = { 'id': item['id'], 'name': item['name'], 'price': item['price'], 'expiry': parsedDate } products.add(tmpArray); } } List products = [ {id: 1242, name:

问题 I'm a Rails web back & front dev, and I want to build a Mobile app. A simple app, with products, users, geolocalisation and maybe payment (with a third-part like Stripe). I think Flutter framework is a good choice, looks verry simple. But I don't know how a thing of the Dart language (or mobile native dev), and don't know where to start. I thought of a system like : Rails back-end for products and users Flutter framework app for actions and geolocalisation API between them to receive and send