I am looking for an easy way to open apps, Facebook and Instagram specifically, on a button press from my React Native app. It should also check if the app is installed on the device first, and open the app store if it isn't. It needs to work on both iOS and Android. I am a beginner so if you can post an example it would help.
You can use Linking module of react-native to open other mobile apps.
import { Linking } from "react-native";
const APP_ID = //ID of app need to open in play store
const appDeepLinkURL = //Most of the mobile app provide it
Linking.openURL(appDeepLinkURL).catch(err => {
Linking.openURL(
`market://details?id=${APP_ID}`
).catch(err => Linking.openURL(
`http://play.google.com/store/apps/details?id=${APP_ID}`
).catch(err => console.error("An error occurred", err)););
});
Similarly, you can do for the iOS,
you can refer to the official doc here.
use react-native Linking Component
import {
TouchableOpacity,
Text,
Linking,
} from 'react-native';
<TouchableOpacity onPress={() => { Linking.openURL('sms:' + {contactNumber}
+ '?body=Hi'); }}>
<Text> Open Message App </Text>
</TouchableOpacity>
Related
I have a screen on my react native expo managed workflow where the image from a previous screen is passed as a prop the relevant screen as props.pic
What I am trying to now do is share that link as a picture to other apps (like whatsapp or sms) or even just share the image link (if it's not possible to share the picture from the uri). This is what I have tried so far but it keeps giving me this error that I do not have to access the provided file from my firebase storage (I do because a simple copy and paste of the same link works fine everywhere else including in the app):
import React, {useState, useEffect} from 'react';
import { View, TouchableOpacity,Text
Image} from 'react-native';
import * as Sharing from 'expo-sharing';
const Details = props =>{
const [i, setI] = useState(props.pic);
const openShareDialogAsync = async () => {
if (Platform.OS === 'web') {
alert(`Uh oh, sharing isn't available on your platform`);
return;
}
if (!(await Sharing.isAvailableAsync())) {
alert(`Uh oh, sharing isn't available on your platform`);
return;
}
await Sharing.shareAsync(images[i]);
};
return (
<View>
<TouchableOpacity onPress={openShareDialogAsync}>
<Text>Share</Text>
</TouchableOpacity>
</View>
)
using some basic code, I am trying to access a sharepoint page:
import { WebView } from 'react-native-webview'
const ExampleScreen = ({ navigation }) => {
return (
<WebView style={{flex: 1}}
source={{uri: 'https://example.intra.net/sites/1/ProjectName/SitePages/Nameofpage.aspx'}}/>
)
}
export default ExampleScreen;
When I pull up the page on Safari, I can see it, because I'm logged in. However when I try to look at the page in the Expo Go test build, it says "401 Unauthorized". What is the process for authenticating something like this in a native app? I am a novice and I don't understand how it works.
import React from "react";
import AppLoading from "expo-app-loading";
export default function App() {
return <AppLoading />;
}
Isn't the above code supposed to show the splash screen to me? All I get is a white screen. Would really appreciate knowing what I did wrong here.
I have splash.png in my assets folder.
My app.json file:
{
"expo": {
...
"splash": {
"image": "./assets/splash.png",
"resizeMode": "contain",
"backgroundColor": "#e2fcff"
},
...
}
}
The code you have shown looks fine. However, there's more to it.
It's quite unclear to me what is actually supposed to work and not. For me, who runs a custom-managed workflow, AppLoading works when I prebuild android/ios and run the standalone app. When I run in Expo Go app I simply see a blank screen instead of the splash screen.
People have discussed if AppLoading works in bare workflow and according to Expo's sdk it should. It also works for me with a prebuild, so bare workflow is supported (in Expo SDK 42).
I have seen no mentions about showing a splash screen within the Expo Go app though, so can't tell whether that is supported or not.
And then web... Once again, not sure if it should work or not - it doesn't for me. It shows a blank page while loading. And in the fonts guide there is an Expo snack which uses AppLoading that shows a splash screen on Android but merely a blank page on web. The AppLoading docs claims it has support for web. If that means it won't crash, or actually display a splash screen image is left untold. The AppLoading docs further claims it uses SplashScreen to show the splash screen, which doesn't have web support. So, I suppose there's nothing such a splash screen for web (which wouldn't surprise me, because splash screens are uncommon on web).
Personally, I'm fine with Android/iOS support for standalone apps. I only use Expo Go for testing. Furthermore, the splash screen I will use for mobile devices won't work well on web anyway. The skeleton I will show won't look the same as the web version, so I would rather implement at custom splash screen for web.
Summary for AppLoading support:
Managed and bare workflow are both supported.
It works on standalone apps.
Not sure if it will display the splash screen in Expo Go app.
Web appears to fallback to displaying a blank page.
If I'm wrong somewhere, or if someone knows if AppLoading works in Expo Go App, please fill me in!
App loading documentation In the documentation, it says that you need to provide additional arrugments
export default function App() {
const [isLoading, setLoading] = useState(true);
if (isLoading) {
return(
<AppLoading
startAsync={() => console.log('starting')}
onFinish={() => { setTimeout(() => {setLoading(false)}, 1000) }}
onError={(err) => {console.log(err)}}
/>
)
}
return (
<View style={styles.container}>
<Text>Open up App.js to start working on your app!</Text>
</View>
);
}
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.
In my react-native app, I want to share a text message with a specific application, e.g whatsapp or texting application without having to first land on the dialog with all the social applications.
For instance if I press the share button and whatsapp is called directly.
I tried using react-native-share but it seems to not be working anymore.
You can use Linking, which gives you a general interface to interact with both incoming and outgoing app links.
For example:
import React, { Component } from 'react';
import { Linking, Button } from 'react-native';
export class App extends Component {
render() {
return <Button
onPress={() => {
let url = 'whatsapp://send?text=Hola Mundo';
Linking.openURL(url).then((data) => {
console.log('open whatsapp')
}).catch(() => {
console.log('App not installed')
});
}}
title="Whatsapp"
color="#4FBE3C"/>;
}
}
For Android, the React Native Share module uses the default ACTION_SEND android intent:
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
In order to have a different behavior, you need either write our own RN plugin that would talk to the app you want it to (if such feature is available) or find a similar plugin on npm.
I assume your plugin should do something like this:
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send.");
sendIntent.setType("text/plain");
startActivity(sendIntent);
sendIntent.setPackage("com.whatsapp");