Questions tagged [expo]
Expo is an open-source and free platform that lets web developers build truly native apps that work across both iOS and Android by writing them once in just JavaScript. Use the Expo tag on questions about developing Expo projects and using the Expo development tools like XDE and exp.
16,522
questions
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Turn off notification light automatically expo
How do i add led light notifications on my react native app that turn off when i press the notification
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2
answers
57
views
Warning: Can't perform a React state update on an unmounted component....componentWillUnmount method
I'm very new to React and React Native and I am getting this warning when I switch screens. Also, the console.log keeps repeating infinitely, how do I fix it?
class DecodeScreen extends Component {
...
- 13
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1
answer
311
views
Can't install expo-cli
im trying to install expo-cli for react native project on ubuntu using npm i tried npm install -g expo-cli but it doesn't work for me always the same error :npm WARN deprecated [email protected]: ...
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votes
2
answers
294
views
Async/await function not returning responses for all items when using .map
I have a JSON object stored in a locations.json file.
[
{
"VendorName": "Vendor1",
"VendorAddress": "Some Address",
"VendorCity": "Some City",
"VendorState": "NY",
"...
- 1,698
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votes
1
answer
31
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How to implement this view in react navigation?
I want to know how I can implement this component in a rounded way by opening the section of the bottom bar
https://im.ezgif.com/tmp/ezgif-1-42c1c073d593.gif
https://i.ibb.co/QjMwHwq/descarga.png
If ...
-3
votes
1
answer
2k
views
TypeError: TypeError: undefined is not an object (evaluating 'theme.label') Error [closed]
I am having this issue with expo and npm. Anyone has any idea how to resolve this?Error is here!
- 31
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votes
1
answer
947
views
react native android network request fail, but work on ios and postman
I got a api that runs well on ios device, ios simulator and postman. But it fail to work with android device and android emulator.
this is my api https://a.com/proxy/done post method
This is how I ...
- 11.2k
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1
answer
38
views
Automatically display only the latest topic
I need to show only the latest content posted in my website using API to display it on my react native mobile app home page. But when I run my app it shows Typeerror: undefined is not an object this....
- 11
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votes
1
answer
71
views
Convert from arrow functions [duplicate]
I will be very happy if you can help me.
I am making react native expo app. I have code that displays information from the database. But i want convert this code from arrow functions to normal ...
- 145
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votes
2
answers
4k
views
How to use gradient in react native
Hey guys can anyone tell me how to use gradient in react native without using Linear gradient as i am unable to use it react native bottom tab bar and react native element card.
const MainScreen = ...
- 460
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votes
1
answer
69
views
Any documentation about pure React Native without using EXPO?
I want to learn React Native but, without using EXPO
Why do i not using EXPO? (source: Youtube Channel "McAbout Digital")
Lack of support for geolocation
No support for Payment API
Slow image ...
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votes
2
answers
239
views
Background event in react native application
I was wondering if there’s anything that could trigger an event in the background in react-native.
I’ve created my project with CRNA(I cannot use native code until I detach from expo and thus cannot ...
- 1
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votes
1
answer
199
views
I can't find a suitable api to implement a chat in my app?
I'd like to implement an authentic chat feature in my app built with react-native + expo and i've tried to create a homemade one with push notifications + firebase database but the result is below my ...
- 3,840
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votes
1
answer
745
views
React native (expo) app APK not working
I have built an expo (React native) app and in development it is working great, even running perfectly on my android device. I built an APK and now when i run the apk on the same android device i get ...
- 6,915
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votes
1
answer
104
views
react native expo exception
I'm beginner in React, I followed instructions to create a new project and I can't run it in expo in my phone.
I made sure that my phone and my computer are connected in the same network and I m able ...
- 2,600
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votes
2
answers
417
views
How to convert/working expo project on pc (windows)
Hello, i have project on expo that i get from github.
and i want work with andriod emulator (from android studio), and i don’t know how to do this.
in the project no have node_modules directory and ...
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1
answer
957
views
I got this error trying to run my React app on a iOS and Android device
this, what I do?:
Unable to resolve module .config/config.js from App.js:
None of these files exist: *
...........config\config.js(.native|.ios.expo.ts|.native.expo.ts|.expo.ts|.ios.expo....
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votes
1
answer
193
views
React Native Android App Error Close Internet
Me build file .apk in Android then install file app .apk in my phone, I close Internet then open app. Then I see error I don't go to my app, please see image.
Thanks
- 37
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votes
1
answer
28
views
Appears errors : element invalid
The code: it's appears element invalid but idk : so, how appears error:
import { StyleSheet, Text, View } from 'react-native' import { SplashScreen, Stack , Sta} from 'expo-router'; import { useFonts }...
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votes
2
answers
75
views
Anybody know why this doesn't work if its writen like the react navigation docs?
This is the btn that 'controls' the navigation.
It loads the first Stack, Home, but when I press the touchable opacity to go QnScreen it drops an error: undefined is not an object (evaluating '...
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votes
2
answers
589
views
Removing Search Bar
I've been working with React-Native and Expo lately. I need a button to open a website in the browser but the search bar (top) and the icon bar should not appear either. Here is a picture to make ...
- 1,506
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1
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504
views
I want to get doc data from Firebase
/* eslint-disable indent */
import React, { useEffect, useState } from 'react';
import {
Alert,
} from 'react-native';
import firebase from 'firebase';
// import { useIsFocused } from '@react-...
