I am trying to use AppLoading on Expo to preload data from firebase, before the app goes to the homepage. I keep receiving an error. “Error: could not find react-redux context value; please ensure the component is wrapped in a < Provider > ” what I have tried: any help would be greatly appre…
Tag: react-native
Why Initial states are undefined in react native?
Hy! I’m a newbie in react native. Recently I developed an expo app that is working properly but there is an issue I’m facing with my login screen is that when I put username and password press login button on the first attempt when I console log the states in which data are set with AsyncStorage w…
OnBlur not closing the Listitems when clicked outside the Autocomplete
I am trying to implement an autocomplete component in react native. Everything works fine except for when I click outside the list still remains . onBlur() doesnt get triggered. I have Wrapped as suggested here by many but still it doesnt work. Can someone please help me fix this ? Here is my code . Sorry for…
How do you filter JSON data using axios and useEffect?
I want to filter the data from this json file: How can I use axios and React Hooks to filter this data and only get the state name and their actuals as variables to pass in a search UI later? This is my code currently: Answer I’d note that there probably isn’t a reason to try to get rid of
URLSearchParams with axios instance in react-native
I was attempting to send payload, and URLSearchParams through an API URL from my react-native application. I initialized an axios instance as, And from another component, I imported the axios instance, then, The payload contains the request body for the API. As stated in API docs, I have to send the filters t…
Error using new Date() in react Native is not a constructor
When I use new Date(); in react native to create a new date or time I get the error: TypeError: undefined is not a constructor (evaluating ‘new _reactNative.Date()’) What could be causing this? Is there something I am not importing into react Native? Answer There are several issues here that are f…
Add a new image with the existing image list in firestore database
I have already two images in the firestore database, I am trying to add a new image to this list? How can I add a new image to the existing image list? Answer To add another array to the postImg, you can: Also see the Firebase documentation on adding items to an array.
Is there any way to check a image size before uploading in react native?
I am currently using image picker and image manipulator in my project for uploading and compressing the image. But I want to show user that he cannot upload image greater than any particular size(let’s say 5mb). How can I achieve this in react- native? Answer I’m actually doing this exact thing wi…
Render a new value into TextInput React Native
I’ve got a react native form with a button that should autofill some of the field based on some user’s information. The point is that even if I update the state variable related to a TextInput, the TextInput does not display such data. Here’s a short snippet for the sake of simplicity Follow…
Typescript: How to type ForwardRefExoticComponent + ComponentType
I am trying to type a Component prop that could accept both: As well as something more custom: So, I tried: But when trying to set a ref, I get: Then I tried: But in this case, when trying to pass RN.TextInput as prop, I get: Here is a sandbox showing the issue Answer Adding typeof TextInput solve the TS