Is there any way to use the native chart libraries from android and iOS in flutter?
I've looked at the docs of flutter and they provide a possibility to use native code, but you only can pass strings, ints, and so on.
There is currently no beautiful usable UI library for charts in Flutter. I've only found https://pub.dartlang.org/packages/flutter_charts, but it doesn't look good.
Anyone had a way to create a wrapper for UI?
Thanks!
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I really want to make use of the pencil kit in my react-native application. I just want to know whether I can do it. If yes, then how?
TLDR: Doesn't exist as of 2/6/2021 and you will need to write bridge code between react native (js) and native (swift/ObjC). There are big performance limitations with this approach. I recommend you create a native Swift based app for your project.
I was also curious if this is available.
For those willing to use Swift, here's the sample shown during the demo.
For those that want to use PencilKit / CoreML native libraries from React native you need need to write bridge code between Javascript (please use typescript) and the native code.
Here's more information on bridging and a guide.
For me, I will be building a note taking app and it needs to be performant. Despite being a react / react native developer I will be choosing Swift to build this project due to performance concerns.
Last point to make is that you can use react native and native together. But this is more of a headache than an enabler. AirBnB used this for some time but moved away from this approach.
For anyone new to React Native, it's a great platform. I personally like to use it for simple applications (not graphically intensive). You can also use it with the Expo tooling which speeds up prototyping but be warned some functionalities are not available bluetooth is one example.
Yes I Did it.
I created a native view for iOS Pencil Kit in React Native with Swift.
You can check basic examples for native module in my Repo
I'm beginner swift developer. Just for a week now I've been trying to implement some kind of chart into my app. I know Swift 4 and Xcode 9 are already out but I'm still using Swift 3 and Xcode 8. I've read a lot of tutorials and different pages but still I'm not able to find any working ones. All examples are either too old or for swift 4. I've learned about using Cocoapods and other frameworks such as Firebase or Alamofire work just fine.
Please let me know if you can help me with finding some chart library that actually works as it is supposed to.
To get things materialistic and kick off, for building charts in iOS try Charts library. One of the best third-party libs out there.
Or check this list for even more awesome iOS charts libraries.
I need to create a multi-platform app for web, ios, android and partially desktop.
I wish to use .NET/F#, but the UI is a complication. I have tried Xamarin.Forms and it is too limited to me. I could live to use React Native but I don't wanna to code the full app in javascript, instead, I wish to use F# for all the logic and web backend, and use react only for the UI in mobile.
But I wonder how?
How feed data to the UI and react to events there?
P.D: If nativescript make this possible I'm all ears. I'm still not rule out xamarin for it, but forms is too limited and the nature of the apps and so far think react native is the closer to my needs.
There's already a sample of this, because the entry file of the Fable React Native demo is a pure JS file that calls the JS generated by Fable. You just need to extend this pure JS layer and import the code generated by Fable when needed.
For Android I see there is a very good solution Json2View:
https://github.com/Avocarrot/json2view
for creating Android app UI on the fly. Is there any similar solution available for iOS? Is there any constraint is having JSON based UI concept for iOS, the way json2view does for Android? Or best would be some common open source library that has flavor for both Android and iOS.
Using React Native you can accomplish the same.
Strictly speaking, its not Json to View but its JavaScript to View.
Whatever views you create in ReactJS, will be created using native UIKit Framework.
For example, if you use scrollview component in JS, it will use a scrollview subclassed of UIScrollView.
Please check this link for in-depth overview
https://facebook.github.io/react-native/
https://github.com/facebook/react-native/issues/823
You cannot do anything like this, you will get apple rejected because of using any kind of code injection.
I recently started to create an iOS version of my Android app and I've found myself struggling to find a method of extracting dominant colours from an image.
Over in Android there's a palette library provided by Google that allows you to do just that. (https://developer.android.com/reference/android/support/v7/graphics/Palette.html)
I'm can't seem to find any libraries that will allow me to that in iOS however.
It seems my friend use this library: https://github.com/pixelogik/ColorCube
Take a tour, it seems that they do what you are expected.