Location Trackee and Tracker Apps in React Native Expo - react-native

I am currently developing Driver App and Client App in React Native Expo using firestore. When a Driver App shares the current vehicle journey location, Connected client apps should be able to see the journey path and vehicle location.
I'm currently referring this tutorial. Tutorial
When I implement this code its showing error under navigator.
Can anyone let me know that how to develop this using React Native Expo Managed Flow.

Related

Gambling app - React Native vs App Store review guideline

I would like to make a sport betting app with lotteries with access to real money gaming in React Native. Is it possible to store it in the App Store? Because it's gambling app and apple has some rules (link below)
https://developer.apple.com/app-store/review/guidelines/#third-party-software
The point 4.7 including 4.7.1 and 4.7.2.
Is React Native app considered as html5 site because of React or is considered as a native app because components are compiled partly to native iOS?
I would like to know if App Store approves react native gambling apps.

Paypal react native integration

How will you integrate react native app with PayPal. Does react native have any front-end library like react have or how will you add the PayPal functionality to an app. because I googled about that and everyone is saying you have to make a rest api and then connect it to react native app but how?

Can we develop a web and mobile application (Android, iOS, web) with single code base by using React Native?

Can you please help with this.
I am trying to develop mobile and web apps using react native with single code base for web, android and ios. Can we Develop Web and Mobile Application with single code base by using React Native?
The simple answer is yes. However, there are a lot of caveats that you could encounter along the road with certain device requirements and functionality where you may have to write conditional code, but it could still stay in the same codebase.
The easiest way to get started is by using Expo (https://expo.io), which would let you get started with a project that could be run on Android, iOS, and the Web (via React Native Web) all with very minimal setup on your part.

React Native + lib-jitsi-meet - audio/video tracks not getting added to the conference

We are trying to create a React Native mobile app for Jitsi from scratch using the lib-jitsi-meet API, and we have a self-hosted jitsi-meet on AWS server and we followed quick-install guide. For the purpose of this post, the URL is https://jitsimeet.example.com.
In the React Native app, we are able to join a conference called test1 using JitsiMeetJS.initJitsiConference. Once joined, the user is visible as "Fellow Jitster" on the browser at jitsimeet.example.com/test1, but the tracks (video/audio) we are adding to the conference (from React Native mobile app) are not visible and in the browser, it just says "Participant has stopped the camera" and "Participant is muted".
We have tried meet.jit.si & beta.meet.jit.si in our React Native app to see if the problem is related to our backend installation. But these were also not working.
We have also tried the same conference jitsimeet.example.com/test1 on the browser and in jitsi-meet mobile app and they are both working fine without any issues.
We have also set up the jitsi-meet repository locally. On running the React Native part on the Android emulator, it is working fine (both joining the conference and rendering the audio/video tracks).
From the above observations, it seems to be that the issue is coming from our implementation of React Native app.
Our code for the component that initiates the conference can be found here. Here you can find the link to our repository. To run it, just do npm i and npx react-native run-android. We are using polyfills in our react-native code as given in the jitsi-meet repository.
In the logs of jicofo on our server, we were able to see that when users join via web or jitsi-meet mobile app, we are getting:
org.jitsi.jicofo.ParticipantChannelAllocator.log() Sending session-initiate to: test1#conference.jitsimeet.example.com/2502e6ad
org.jitsi.jicofo.JitsiMeetConferenceImpl.log() Got session-accept from: test1#conference.jitsimeet.example.com/2502e6ad
org.jitsi.jicofo.JitsiMeetConferenceImpl.log() Received session-accept from test1#conference.jitsimeet.example.com/2502e6ad with accepted sources:Sources{ video: [ssrc=467278592 ssrc=2301072636 ssrc=839807103 ssrc=3616291734 ssrc=2331517151 ssrc=3181098946 ] audio: [ssrc=2795704819 ] }#2129717334
Whereas when we join via our React Native app, we are only getting:
org.jitsi.jicofo.ParticipantChannelAllocator.log() Sending session-initiate to: test1#conference.jitsimeet.example.com/946022e6
More information which might be relevant
On the client side, we are adding tracks after CONFERENCE_JOINED event is fired, then, we are getting the following logs
[JitsiConference.js] _doReplaceTrack - no JVB JingleSession
[JitsiConference.js] _doReplaceTrack - no P2P JingleSession
As mentioned above, we can join the conference from our react native app and we are getting CONFERENCE_JOINED, USER_JOINED, USER_LEFT events.
The TRACK_ADDED event is also firing locally right after adding local tracks. But it is not firing for any video/desktop-sharing/audio changes occurring on other remote clients (web browser or jitsi-meet mobile app).
How can we fix this?

Detect when other Application is launched in React Native app

I want my react native app to detect when Google Maps app is open to show some travel tip. Is it possible?
You can not detect if another app is launched for security reasons. Installed apps canĀ“t listen another apps because they are "sandboxed".
You can only interact with another apps opening it throught your app by Deeplinking or detecting if is or not installed.
It's not a limitation of React Native. All iOS applications cannot access other applications, except to open it or share some resources.