logo
down
shadow

DART QUESTIONS

Convert JSON to map with string keys and List<String> values
Convert JSON to map with string keys and List<String> values
With these it helps So, I assume that the .cast method introduced with Dart 2 doesn't know how to convert nested types that aren't simple types like String, int, or bool.
TAG : dart
Date : November 29 2020, 04:01 AM , By : SekhmetDesign
Dart - Linting option to force explicit types
Dart - Linting option to force explicit types
Any of those help Is there a linting option for Dart that forces explicit types? I don't like how if I have an unspecified return type for a function it becomes dynamic, while if I don't specify the type for a variable it properly infers it. , Sure!
TAG : dart
Date : November 28 2020, 04:01 AM , By : user2187896
Flutter - Animate change on height when child of container renders
Flutter - Animate change on height when child of container renders
help you fix your problem In the end I just had to use AnimatedSize. It replicates exactly the animation that I want.
TAG : dart
Date : November 27 2020, 04:01 AM , By : Musanna Musahher
Dart: http post upload to google Drive
Dart: http post upload to google Drive
I hope this helps . When you want to add a more complex form item to MultipartRequest, you add it as a file. (Yes, slightly strange...)Replace request.fields.add... with...
TAG : dart
Date : November 27 2020, 04:01 AM , By : user2187501
Flutter / GraphQL - Mutation with custom type as parameter
Flutter / GraphQL - Mutation with custom type as parameter
seems to work fine Love to see the community that is created around the graphql_flutter library.
TAG : dart
Date : November 26 2020, 04:01 AM , By : user2187170
Change state of widget outside State class
Change state of widget outside State class
Hope this helps One solution would be the one in the full example below. The slider widget updates the value in the main page and it is used to set the value in the other slider.I have made up some of the code since your snippet was not complete.
TAG : dart
Date : November 25 2020, 04:01 AM , By : pengqin
Flutter check if app is running in iPad or iPhone
Flutter check if app is running in iPad or iPhone
wish help you to fix your issue Use device_info
TAG : dart
Date : November 24 2020, 04:01 AM , By : Alexander Leo
NoSuchMethod in dart?
NoSuchMethod in dart?
seems to work fine According to the official docs for invoking an unimplemented method, you have to satisfy one of the following points: The receiver has the static type dynamic. The receiver has a static type that defines the unimplemented method (a
TAG : dart
Date : November 22 2020, 04:01 AM , By : Selva Dhinakaran
Getting the value from a custom input widget
Getting the value from a custom input widget
I think the issue was by ths following , You need to provide onChanged and other events in your custom widget, even if you are just providing these to the underlying TextField. In other words, you need to pass the onChanged function down through your
TAG : dart
Date : November 22 2020, 04:01 AM , By : harshavardhan
Align Text of different size in row to bottom
Align Text of different size in row to bottom
will be helpful for those in need I think you need to play around with the crossAxisAlignment and textBaseline properties of your Row widget.Try something like this:
TAG : dart
Date : November 21 2020, 04:01 AM , By : Jocms
How can I get rid of the animation on the InkWell widget?
How can I get rid of the animation on the InkWell widget?
Hope that helps If you don't care about the splash animation, do not use InkWell. That widget exists only for that.Instead use GestureDetector, which is basically an InkWell without the animation.
TAG : dart
Date : November 20 2020, 04:01 AM , By : Fact Istrue
How to conditionally add an error to an Observable in RxDart?
How to conditionally add an error to an Observable in RxDart?
Hope this helps Stream.map will forward thrown exceptions on as error events in the stream.
TAG : dart
Date : November 20 2020, 04:01 AM , By : Ahmed Nasr El-din
Missing concrete implementation of Getter and Setter
Missing concrete implementation of Getter and Setter
I hope this helps . Dart doesn't inherit implementations from implements Shape, but only states that Rectangle conforms the interface of Shape. You need to add String color; to Rectangle to satisfy implements Shape.
TAG : dart
Date : November 19 2020, 04:01 AM , By : Henrique Colaço Silv
How to add ripple effect to PhysicalModel in flutter
How to add ripple effect to PhysicalModel in flutter
I wish this help you If you want to remove the splash color of the MaterialButton just change these colors to transparent.
TAG : dart
Date : November 18 2020, 04:01 AM , By : Damien Turnbull
Dart mapping Function as constructor with node interop
Dart mapping Function as constructor with node interop
should help you out This isn't exactly an answer my the question, but I am using a workaround for now..
TAG : dart
Date : November 10 2020, 04:01 AM , By : user2181331
In the Flutter what is best way to add package in pubspec.yaml file?
In the Flutter what is best way to add package in pubspec.yaml file?
it fixes the issue You can omit the version or use any, but it's a good idea to add a version range.Avoid updates breaking your app/package
TAG : dart
Date : November 09 2020, 04:01 AM , By : user2181019
Does Dart have import alias?
Does Dart have import alias?
should help you out No. Dart do not have import alias.But you have absolute imports which makes up for it:
TAG : dart
Date : November 08 2020, 04:01 AM , By : user2180867
Do I have to deserialize the whole complex json file (with many nested arrays and objects) when I need only one object?
Do I have to deserialize the whole complex json file (with many nested arrays and objects) when I need only one object?
To fix this issue That's a tiny JSON file and there is no reason for premature optimizations. Just deserialize it and then access the items of the generated Dart data structures to get what you need. Everything else is probably equally expensive and
TAG : dart
Date : November 06 2020, 04:01 AM , By : lindeman
changing values when navigating with fluro
changing values when navigating with fluro
like below fixes the issue I found the solution .. i need to change route name in order to send new value .. so what i did was to send it with the code like this:
TAG : dart
Date : November 06 2020, 04:01 AM , By : Debby Rauch Lissaur
Get Variables name by it's value in Dart Lang
Get Variables name by it's value in Dart Lang
fixed the issue. Will look into that further 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.
TAG : dart
Date : November 05 2020, 04:01 AM , By : user2179746
Dynamic AppBar of Flutter
Dynamic AppBar of Flutter
it fixes the issue appBar requires a widget that implements PreferredSizeWidget, and StreamBuilder isn't one.You can wrap that tree into a PreferredSize:
TAG : dart
Date : November 03 2020, 04:01 AM , By : F. Ortega
Unable to serve angular components with simple Dart web server
Unable to serve angular components with simple Dart web server
I hope this helps . I'm just getting started writing web apps and want to do the whole stack in Dart. I've followed some tutorials for the client side and running them in webstorm works.
TAG : dart
Date : November 02 2020, 04:01 AM , By : user2178686
error: The argument type '(File) → Future<dynamic>' can't be assigned to the parameter type '(dynamic) → FutureOr&
error: The argument type '(File) → Future<dynamic>' can't be assigned to the parameter type '(dynamic) → FutureOr&
will be helpful for those in need api.files.get() is statically declared to return a Future. A bare Future with no generic is implicitly a Future. The Future.then call takes a Function(T), which means Function(dynamic). You're passing a Function(File
TAG : dart
Date : November 01 2020, 04:01 AM , By : Jaykumar Kesavan
How to get progress event while uploading file on http.MultipartRequest request in flutter
How to get progress event while uploading file on http.MultipartRequest request in flutter
I hope this helps . After waiting for a week or so. I didn't get response. Thus I developed a plugin myself to get this behavior. Package link.Example to use it:
TAG : dart
Date : October 30 2020, 05:01 AM , By : user2177425
shadow
Privacy Policy - Terms - Contact Us © bighow.org