Missing components in the CameraRoll API - react-native

I am trying to access the gallery using the official CameraRoll API guide. I am unable to render the component because the following modules are not provided in the official doc:
const CameraRollView = require('./CameraRollView');
const AssetScaledImageExampleView = require('./AssetScaledImageExample');
I tried to google for examples regarding CameraRollView and AssetScaledImageExampleView but found nothing. My question is where can I find the boilerplate code for these two modules? I am still learning React-Native so I am not sure how I am suppose to go about coding these two modules.

Above the example code, next to the headline "Examples", you should see a link "Edit on GitHub" which leads to the source code for that example on GitHub. From there, you can navigate to the location of the file you desire.
For the particular files you desire, they are located at the following links:
CameraRollView.js
AssetScaledImageExample

Related

How to generate custom template for sharing contents in instagram stories

I'm working on a React Native app, and I'd like to create a function for sharing contents in Instagram stories, like the tweet below.
How can I generate a custom template, like Twitter does, using Python? Because my backend is written in Django.
=== UPDATE ===
I have done some research and found out that you can use various languages, such as FabricJs or PIL in Python, to draw an image. However, these can be a nightmare for high-complexity stickers. Therefore, my solution is to simply take a screenshot in the app using react-native-view-shot.
If someone has any better solutions, they would be greatly appreciated.
Thank you.
Websites previews based on website meta tags like open graph
You can use this library to generate it https://github.com/tjcages/expo-link-preview.
However, it maybe a better solution is to build these previous on the backend like here https://github.blog/2021-06-22-framework-building-open-graph-images/
And then share image with https://github.com/react-native-share/react-native-share

React native image annotations containing a link to a site

I am a complete beginner at react-native. I am trying to create an app where i can take multiple photos and add a tag/label with a link to a website to each of the photos. These links when tapped need to take the user to the specified website. I also want to be able to save all of the tags along with the images for later in the app. I have found some resources(components) regarding this but as a beginner, i do not know how to use any of them. I am listing these below. If anyone can help to use these or give me any direction as to how i can make this project, i would be really grateful.
resources i found:
https://github.com/skicson/react-native-image-annotation
https://github.com/JimmyDaddy/react-native-image-marker

How do I modify Docusaurus appearances of the blog from a component library?

Creating Modified Blog Entries
I am new to React, and very much to Docusaurus, however, I've managed to get a decent looking DS site going. I am trying to capture some simple snippets to as "blog entries", just small factual snippets, etc. simple project summaries. I’ve hit the limit of the Docusaurus.config options and not sure how to expand the out of box components.
How do I begin to alter and edit Docusaurus to change the Blog page to be like "Cards" in component-speak? Ive seen some example in Infima, but not sure how to bridge that gap?
How can I easily replicate the Announcement Bar to also be at the bottom, like a Banner?
Thank You!
One possible arena for you to use is Bootstrap — specifically React-Bootstrap. They have a card component you could use where you link individual blog entries to that card. If you're comfortable with JavaScript, there's probably an automation you can build there, but hand-coded text is somewhat part and parcel with static-site generators.
If you want a different solution with the CSS code in your src file outright, CSSCodeLab has a React Card layout entry with an attached source code file. Some hand-coded text required, and not automatically integrated with a separate blog setup, but YMMV.
Otherwise Docusaurus' Showcase page does provide the card formatting. The source code for the page (coded at index.tsx) as well as the components are available.

How to load Google Places API in React Native?

I am trying to use the Google Places API in react native. I first tried using fetch to make requests directly, but I just saw that you have to use the existing classes/objects provided by Google, like the PlacesService. Searching for React Native libraries that include the API objects for you just brings up some that do the autocomplete feature and not much else.
The Places API docs say to load the library using this url: <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places"></script>
This is straightforward to me in regular web dev, but not in react native. What is the standard procedure for loading a library like this in React Native?
Right now I have copy and pasted the JS contents from the link above into a file in my React Native project. But, I don't even know how to export it as I can't really tell what the name of the object/function is. google ? google.maps ?
Right now I am doing:
export default google.maps
and also tried
export default google
but these both throw this error:
cannot read property 'createElement' of undefined
This is my first React Native project, so I'm sorry if this is a basic question.
Thanks for the help.
but I just saw that you have to use the existing classes/objects provided by Google
I'm not sure what you mean by that. Places api can be done via fetch/api request. Look at how react-native-google-places does it at https://github.com/FaridSafi/react-native-google-places-autocomplete/blob/master/GooglePlacesAutocomplete.js#L227
They use a new XMLHttpRequest(); but fetch() would work as well. It is web api and I don't think you need to run any external javascript/load any external js files.

How can i modify theme default #shoutem/theme

I create new project react native, then i installed #shoutem/ui , #shoutem/theme, #shoutem/animation to my project via nom install...!
But i have problem when try to find some way better to modify global theme shoutem.
I found theme.js inside folder node_module/shoutem/ui like picture below here!
So best way to modify all them of app is modify this theme.js file?
when i try to modify 1 content like View, Image follow tutorial at here:
https://github.com/shoutem/theme
my navigation bar got error like this picture:
So can u guys help me, suggest me best way to modify global theme default of shoutem?
Do modify theme.js or using something else?
And one more thing! When i try to builder app via https://builder.shoutem.com/ then pull-app using terminal!
I got project! But don't see anything code inside, only extension and so much info! Do not know what is true code when builder complete!
here is picture project when pull-app done!
And here is index file:
So how can i learn form that if only sort info inside index.js file :(
The file you should edit is in:
extensions/ExtensionName/app/theme/ThemeName.js
Where "ExtensionName" refers to the extension that has Screens which you are using in your app.
You should go through the Shoutem documentation on how to write a Theme.
It will show you:
how to create that file (ThemeName.js, your custom Theme)
how you can customize it
how you can use the Builder to manage details about it in Styles>Themes>Customize Theme
how you can add more details for the Builder to manage
When you initially create a Theme as the aforementioned documentation explains, it'll be a copy of the default Shoutem theme, so you'll have a fully functioning Theme right out the box, which you can edit to suit your wants and needs.
You can also check out the Shoutem documentation about the UI Toolkit to find out more info about Shoutem Components (including NavigationBar), Themes and Animations.
The reason I'm linking all this documentation is because the documentation covers all of the issues displayed here in a way that's much more detailed than I could provide in an answer here and the misconceptions and misunderstandings of the questioner can be resolved by self-education.
Edit as response to comment:
You have to use:
$ npm install --save #shoutem/theme
Inside your project directory.
You can follow read this documentation about Themes to better understand how to apply Theme styles to your own components.
If you want to edit specific components globally, you have to edit that component in:
node_modules/#shoutem/ui/components
Editing a file there will edit every iteration of the component throughout the app.