Hell, I'm trying to create a tab bar in my react native app, but after importing it, it appears it's always undefined. Has this component been deprecated? I still see it listed in the docs. https://facebook.github.io/react-native/docs/tabbarios.html
import React, { Component } from 'react';
import {
TabBarIOS
} from 'react-native';
export default class App extends Component {
render() {
return (
<TabBarIOS/>
);
}
}
I'm using react-native 0.59.3
Looks like this has been removed as part of a core cleanup effort. There doesn't appear to be any native alternative that also behaves correctly on tvos.
https://github.com/facebook/react-native/commit/02697291ff41ddfac5b85d886e9cafa0261c8b98
I've gone ahead and extracted TabBarIOS out into a native module for anyone looking for this.
https://github.com/modavi/NativeIOS
install instructions:
npm install git+https://github.com/modavi/NativeIOS#master
react-native link native-ios
Related
How to make https://xr-spinosaurus.glitch.me/ work in a React Native WebView Component?
import React, { Component } from 'react';
import { WebView } from 'react-native';
export default class MyWeb extends Component {
render() {
return (
<WebView
source={{uri: 'https://xr-spinosaurus.glitch.me/'}}
style={{marginTop: 20}}
/>
);
}
}
Right now adding this to react-native only shows VR option but not AR option.
If you access the link directly you could see VR and AR options but I couldn't find the AR option when run in a Web View component inside React-Native
But the same AR option is available if I directly access the link on an ARCore supported Device.
How to make this code also show the AR option in React-Native?
AFAIK that is currently not possible, since the Android WebView doesn't (yet) support the WebXR Device API (and neither on apple). Source: https://developer.mozilla.org/en-US/docs/Web/API/WebXR_Device_API
I've been running into the same problem, hopefully support will be added soon, but for now there's not much you can do.
I already have a react-native project which I cloned and running successfully.
I added a new file to the project and tried to link that page using a button from another page with, this.props.navigation.navigate('DisplayHomeScreen');
I couldn't link the 'DisplayHomeScreen.js'.
But when I link a page which was already there, the navigate function is working fine.
Here is the simple code of DisplayHomeScreen.js
import React, { Component } from 'react';
import { View, Text } from 'react-native';
class DisplayHomeScreen extends Component {
render() {
return (
<View>
<Text>Display Home</Text>
</View>
);
}
}
export default DisplayHomeScreen;
As your code snippet is insufficient to identify the problem.can you please share your navigation stack.Well at spot I can/ recommend doing.
yarn install (if you are using yarn as a package manager)
react-native link
close metro bundle
restart app
I am a newbie in react-native and I'm trying to use the react-native-ui-kitten library. The problem is that the documentation is not really helpful.
I have I have installed ui-kitten and the theme as indicated with the command: npm i react-native-ui-kitten #eva-design/eva
The documentation asks to configure the application root which I consider to be the App.js file unless I'm wrong.
So i changed the App.js generated code to this:
import React from 'react';
import {
mapping,
theme,
} from '#eva-design/eva';
import { ApplicationProvider } from 'react-native-ui-kitten';
import { Application } from './path-to/root.component';
export default class App extends React.Component {
public render(): React.ReactNode {
return (
<ApplicationProvider
mapping={mapping}
theme={theme}>
<Application/>
</ApplicationProvider>
);
}
}
Unfortunetely it's not working.
Has anyone recently used ui-kitten library ?
What does the documentation mean by Application Root and how to set up a simple react-native project to use react-native-ui-kitten?
And yes I actually checked the documentation but maybe there is something I am not doing right.
I ran into the same problem.
I discovered that the creators of this UI kit use in fact in their code examples Typescript.
So you need to recreate your Reactnative project using a Typescript template, then rename accordingly the App.js into App.tsx
Any other components need to be renamed with the extension .tsx.
Make sure you read about Typescript:
https://www.typescriptlang.org
Here it is how you can recreate your project with Typescript:
https://facebook.github.io/react-native/blog/2018/05/07/using-typescript-with-react-native
All the best,
I am also a beginner in react-native and it seems we kinda differ in implementing the code. I am not sure if this would help but this is the way I implement your code:
import * as React from 'react';
import { mapping, light as lightTheme } from '#eva-design/eva';
import { ApplicationProvider } from 'react-native-ui-kitten';
import { Application } from './path-to/root.component';
const App = () => (
<ApplicationProvider
mapping={mapping}
theme={lightTheme}>
<Application/>
</ApplicationProvider>
);
export default App;
You could try it and let me know if this suits you. Good luck!
I'm coming from Ionic 2 where I write my code once, and it runs everywhere.
According to this page https://facebook.github.io/react-native/docs/platform-specific-code.html "When building a cross-platform app, you'll want to re-use as much code as possible."
How can I "reuse" code across iOS and Android in ReactNative? In the starter app I see two files: index.ios.js and index.android.js. Is there something like index.js that I can use for sharing across platforms?
It seems like there should be one file for shareable code, since that web page mentioned above also shows how you can use the Platform module to check what OS you are on.
I realize that sometimes you need different behavior on different platforms, but, assuming that my app is simple enough, and my code ends up exactly the same on both platforms, do I have to copy/paste from one to the other? How can I pull same-functionality into it’s own file to be shared on both platforms?
What am I missing?
Thanks!
Here's what you can do. Create a file say main.js that will act as your root page.
main.js
import React, { Component } from 'react';
import { Text } from 'react-native';
export default class Main extends Component {
render() {
return (
<Text>Hello world! from both IOS and Android</Text>
);
}
}
Now on your index.android.js and index.ios.js import that main file and register your Main component as root using AppRegistry.
index.android.js and index.ios.js
import React from 'react';
import {
AppRegistry
} from 'react-native';
import Main from './main';
AppRegistry.registerComponent('DemoApp', () => Main);
if you run react-native run-android and react-native run-ios the Main component will be rendered for both the platforms.
All of the Components with No IOS and Android suffix works for both platforms. Like Navigator works for both ios and android but NavigatorIOS works only for ios. So you'll have to make sure that you're using the cross platform components.
If you need to use platform specific components, then you can use platform detection login to do so:
import { Platform } from 'react-native';
if(Platform.OS === 'ios').....
or
if(Platform.OS === 'android')...
After upgrading my project to React-Native 0.26, the app crashing with the following error :
"Super expression must either be null or a function, not undefined"
It crashes in the Switch.js file, which belongs to the React-Native-Material-Kit package.
Ahh, it's because React-Native is moving fast! Too fast in my option. In 25 we saw this warning:
Deprecations
Requiring React API from react-native is now deprecated - 2eafcd4 0b534d1
Instead of:
import React, { Component, View } from 'react-native';
you should now:
import React, { Component } from 'react';
import { View } from 'react-native';
And just one release later in 26 this is now a breaking change
You can try this codemod if you dare. I'm just doing a manual change.