I'm using Expo SDK v. 45, iPhone 13 Pro (iOS v. 15.5), expo-sharing v. 10.1.1.
I'm currently using expo start --dev-client to test my app on my iPhone. I need to be able to share a file, created inside the app, with the outside world. I found expo-sharing to achieve this. Unfortunately, when I run
install * as Sharing from 'expo-sharing';
...
useEffect( async () => {
const canShare = await Sharing.isAvailableAsync();
if (canShare) {
console.log("available");
} else {
console.log("Not available");
}
}, []);
I get 'Not available'.
What must I do to get my app to allow sharing? I can't find anything in the Expo documentation.
Thank you.
In case anybody else has a similar issue: all I had to do was rebuild the app and reinstall it on my phone. Now it works.
Related
I would like to reload the entire expo application when I click on the logout function and I want to do it without ejecting the application, is there a workaround for this? Any help would be appreciated. I have researched on the react-native-restart library but it requires me to eject my application.
These are my current codes
logOut() {
Auth.currentAuthenticatedUser({
bypassCache: false
}).
then(
user => user.signOut()
)
.catch(err => console.log(err))
}
You can use
import { Updates } from 'expo';
Updates.reload()
It's generally used to reload apps when new update is available, but should also work in your case
After expo remove
Updates.reload()
then you can use
await Updates.reloadAsync()
to reload application instead.
I am trying to detect if a user takes a screenshot while using a smartphone app that I have built. I am building my project with React Native.
I have been told that I can possibly prevent screenshots for Android but not for iOS. but can I still detect whether a user attempts to take a screenshot so that I can at least send a warning via Alert?
Thanks in advance
I tried react-native-screenshot-detector but it did not work
you can use this package it supports android&ios screenshot detecting react-native-detector
import {
addScreenshotListener,
removeScreenshotListener,
} from 'react-native-detector';
// ...
React.useEffect(() => {
const userDidScreenshot = () => {
console.log('User took screenshot');
};
const listener = addScreenshotListener(userDidScreenshot);
return () => {
removeScreenshotListener(listener);
};
}, []);
There is no package for it currently.
I have updated my app on app and play store and I want to force my app users to update the new version of app in App store and playstore.
You can check for the App Store / Play Store version of your app by using this library
react-native-appstore-version-checker.
In expo app you can get the current bundle version using Constants.nativeAppVersion. docs.
Now in your root react native component, you can add an event listener to detect app state change. Every time the app transitions from background to foreground, you can run your logic to determine the current version and the latest version and prompt the user to update the app.
import { AppState } from 'react-native';
class Root extends Component {
componentDidMount() {
AppState.addEventListener('change', this._handleAppStateChange);
}
_handleAppStateChange = (nextState) => {
if (nextState === 'active') {
/**
Add code to check for the remote app version.
Compare it with the local version. If they differ, i.e.,
(remote version) !== (local version), then you can show a screen,
with some UI asking for the user to update. (You can probably show
a button, which on press takes the user directly to the store)
*/
}
}
componentWillUnmount() {
AppState.removeEventListener('change', this._handleAppStateChange);
}
}
import VersionCheck from 'react-native-version-check';
i have used version check lib for this purpose and approach i used is below. if version is lower i'm opening a modal on which an update button appears, and that button redirects to app store/google play
componentDidMount() {
this.checkAppUpdate();
}
checkAppUpdate() {
VersionCheck.needUpdate().then(res => {
if (res.isNeeded) {
setTimeout(() => {
this.setState({openModal: true});
});
}
});
}
updateApp = () => {
VersionCheck.getStoreUrl({
appID: 'com.showassist.showassist',
appName,
})
.then(url => {
Linking.canOpenURL(url)
.then(supported => {
if (!supported) {
} else {
return Linking.openURL(url);
}
})
.catch(err => console.error('An error occurred', err));
})
.catch(err => {
console.log(`error is: ${err}`);
});
};
For future readers.
If you are using Expo managed workflow, install this package react-native-version-check-expo using yarn add react-native-version-check-expo or npm install react-native-version-check-expo.
Consult the package documentation on Github for usage guidelines.
I'm using react-native-version-check-expo library to achieve this. Working fine for me.
if you are looking for an easy to integrate built in solution. You can use App Upgrade https://appupgrade.dev/ service to force update your mobile apps.
Create new version entry for your app version that you want to update in the app upgrade service and select whether you want to force it or just want to let users know that new version is available.
Integrate your app with App Upgrade using available SDK. Official SDK are available for React Native, Flutter, Expo, Android and iOS(Swift).
The SDK will take care of the rest.
Whenever you want to force upgrade a version just create a version entry in app upgrade dashboard.
You can also integrate using API. Just call the appupgrade api from your app with the required details such as your app version, platform, environment and app name.
The API will return you the details.. that this app needs to be updated or not.
Based on the response you can show popup in your app.You can call this API when app starts or periodically to check for the update. You can even provide a custom message.
API response:
See the response has force update true. So handle in the app by showing popup.
You can find the complete user documentation here. https://appupgrade.dev/docs
Thanks.
I'm using the latest version of React Native. I'm trying to console log something whenever the headset button is clicked on Android. So far, I've been unsuccessful.
I tried the react-native-music-control. In the docs it says that
MusicControl.on('togglePlayPause', ()=>{console.log('clicked')})
should work. But I'm not sure if its only for ios or android too.
This is my componentDidMount (the render returns a 'hello' text).
componentDidMount() {
MusicControl.enableControl('play', true);
MusicControl.enableControl('pause', true);
MusicControl.enableControl('stop', true);
MusicControl.enableControl('togglePlayPause', true);
MusicControl.on('play', () => { console.log('----'); });
MusicControl.on('pause', () => { console.log('----'); });
MusicControl.on('togglePlayPause', () => { console.log('----'); });
}
'----' is logged only when I disconnect the headset and not any other time.
The official doc on github says:
MusicControl.on('togglePlayPause', ()=> {}); // iOS only
The iOS only comment states pretty clearly that this event is only available on iOS and would not trigger on Android
So, the package react-native-keyevent works really well with android. After linking the package, I had to configure it in the MainActivity.java (which I was skipping by mistake).
After I did that, it worked properly in Android.
i tried to check other app install in my react native project, I'm used module like: https://www.npmjs.com/package/react-native-check-app-install
But always got this error:
Cannot read property 'pkgName' of undefined
Here is my code:
AppInstalledChecker
.isAppInstalledAndroid('com.skype.raider')
.then((isInstalled) => {
// isInstalled is true if the app is installed or false if not
console.log('App Skype status: ', isInstalled);
});
Anyone can suggest me one way so check app install in react native (both: iOS/android)
install this
https://github.com/KjellConnelly/react-native-shared-group-preferences
and
async check() {
try {
await SharedGroupPreferences.isAppInstalledAndroid("com.farsitel.bazaar")
// IF IS INSTALL
} catch (e) {
// IF IS NOT INSTALL
}
}
Google Play considers the list of installed apps to be personal and sensitive user data.
As we are using
AppInstalledChecker
.isAppInstalledAndroid()
method for checking app installed check, for that we have to white-list the queries in manifest.xml
Reference : https://developer.android.com/training/package-visibility
<queries>
<package android:name="com.instagram.android"/>
…
</queries>
For adding Queries need to upgrade build gradle version:
new default settings and features for package visibility in Android 11 that need to add you must update your android gradle plugin version
Reference: How to fix "unexpected element <queries> found in <manifest>" error?
I have updated from 3.5.2 to 4.0.2
Now react-native-check-app-install module working as expected
Hope this is resolved!
Android
I. For app's which has deep links like 'waze://', 'mapsme://' you can use:
import { Linking } from 'react-native'
...
Linking.canOpenURL('waze://ul?ll=${latitude},${longitude}&navigate=yes')
OR
II. You can use for absolutely all apps (for example with deep links like "https://...")
https://github.com/KjellConnelly/react-native-shared-group-preferences
iOS
import { Linking } from 'react-native'
...
Linking.canOpenURL(iOS_app_URL_Scheme)
...
where iOS_app_URL_Scheme you can find via Google for each separate app. Like "waze://", "comgooglemaps://", "osmandmaps://" etc