Bridge.React | Bindings for Bridge.NET for React - write React | Frontend Framework library
kandi X-RAY | Bridge.React Summary
kandi X-RAY | Bridge.React Summary
Bindings for Bridge.NET for React - write React applications in C#!. As well as the basic library calls (such as React.Render and the DOM factory methods like div, span, etc..) there are three base classes to make creating custom components simple in C#; Component, StatelessComponent and PureComponent. Below is a very simple example that illustrates all of this -. The Component base class is intended to allow you to write stateful "Container" components (to use the terminology from the article Presentational and Container Components) while StatelessComponent and PureComponent are for writing components that have only Props and no State. Ideally, components would rely only upon information in their Props reference - in which case they are considered "pure" because they rely solely upon their Props input and ambient references. If a component displayed the current time by using directly accessing DateTime.Now, for example, then that would not be "pure" because its rendering would require information outside of its Props reference. Almost all "Presentation" components should be pure and so should be derived from the PureComponent base class. The PureComponent has a builtin "ShouldComponentUpdate" implementation that will return false if the old Props and the new Props contain values that appear to be equivalent, which often means that React has less "reconciliation" work to do and so is a nice optimisation to get for free (the PureComponent is similar to React's own PureComponent implementation but it is written to better understand Bridge.NET - for example, it supports equality checks using an "Equals" method instead of requiring reference equality and it understands that two bound functions that point at the same function and the same bind-target are equivalent). I find that these bindings work very well with my ProductiveRage.Immutable library because that makes it easier to model immutable types, which all component Props and State types would ideally be (React expects Props and State references to remain consistent and for completely new references to be provided when a component must be given new Props or State - being able to describe this with the type system can be very beneficial). The code further up does not use that library but if you would like to see a sample application that uses the Bridge.React bindings and ProductiveRage.Immutable then you may find a "Todo list" project in the Bridge.React.Examples folder of this repo.
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QUESTION
ANSWER
Answered 2021-Mar-16 at 16:11Is this as simple as an import problem?
I noticed your MyAppPackage class is defined here:
QUESTION
At the moment of generating my apk of my react application I try to test it both in the android studio emulator and in a physical cell phone, but it gets stuck on the splash screen, so it does not enter the Home screen of the app, anymore As a start, I first loaded the Login screen where you could log in with facebook, but I decided to go directly to the Home of the application, so I comment on the entire Login code.
Here is the record of adb logcat at the time of Launching the App:
...ANSWER
Answered 2021-Feb-23 at 03:11Seems the error speaks it out...
QUESTION
I am using the following code to scan all the nearby BLE devices
here is the code.
...ANSWER
Answered 2021-Jan-31 at 09:091-2. As soon as your scan filters are empty you will get all the scan results, so it could be that in this app there is different scan filters. Because of that you can get different scan results.
I think you start receiving scan results in callback method
onScanResult
, which is not realised in your code.It could be some BLE devices around you - like laptops, mouses, TVs, etc.
QUESTION
Trying to create native module for react-native. I have all the dependencies needed and I followed the instructions user com mobile sdk installation
in project/android/build.gradle
ANSWER
Answered 2020-Apr-21 at 10:17You're importing UserCom, and that module is not availabe, as you've mentioned you had created the file UserComModule in that directory, either create UserCom class or delete this line from UserComModule
import com.user.UserCom;
QUESTION
i'm building an notifications on my Android. Stuck on problem, where i need to create NotificationChannel.
getting error - Attempt to invoke virtual method 'java.lang.Object com.facebook.react.bridge.ReactApplicationContext.getSystemService(java.lang.Class)' on a null object reference
NotificationService.java
...ANSWER
Answered 2020-Mar-16 at 12:43You are never setting the reactContext instance variable, which is why it’s null.
In the constructor, you call super(reactContext)
, but that wouldn’t set this class’s instance variable.
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