thumbor | thumbor is an open-source photo thumbnail service | Computer Vision library

by thumbor Python Version: 7.4.4 License: MIT

kandi X-RAY | thumbor Summary

thumbor is a Python library typically used in Artificial Intelligence, Computer Vision applications. thumbor has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can install using 'pip install thumbor' or download it from GitHub, PyPI.

thumbor is an open-source photo thumbnail service by globo.com

Support

Quality

Security

License

Reuse

kandi-support Support

thumbor has a highly active ecosystem.
It has 9320 star(s) with 803 fork(s). There are 198 watchers for this library.
There were 10 major release(s) in the last 6 months.
There are 14 open issues and 913 have been closed. On average issues are closed in 157 days. There are 7 open pull requests and 0 closed requests.
It has a positive sentiment in the developer community.
The latest version of thumbor is 7.4.4

thumbor Support

Best in #Computer Vision

Average in #Computer Vision

thumbor Support

Best in #Computer Vision

Average in #Computer Vision

quality kandi Quality

thumbor has 0 bugs and 0 code smells.

thumbor Quality

Best in #Computer Vision

Average in #Computer Vision

thumbor Quality

Best in #Computer Vision

Average in #Computer Vision

security Security

thumbor has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
thumbor code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

thumbor Security

Best in #Computer Vision

Average in #Computer Vision

thumbor Security

Best in #Computer Vision

Average in #Computer Vision

license License

thumbor is licensed under the MIT License. This license is Permissive.
Permissive licenses have the least restrictions, and you can use them in most projects.

thumbor License

Best in #Computer Vision

Average in #Computer Vision

thumbor License

Best in #Computer Vision

Average in #Computer Vision

build Reuse

thumbor releases are available to install and integrate.
Deployable package is available in PyPI.
Build file is available. You can build the component from source.
thumbor saves you 619657 person hours of effort in developing the same functionality from scratch.
It has 312214 lines of code, 1349 functions and 244 files.
It has medium code complexity. Code complexity directly impacts maintainability of the code.

thumbor Reuse

Best in #Computer Vision

Average in #Computer Vision

thumbor Reuse

Best in #Computer Vision

Average in #Computer Vision

Top functions reviewed by kandi - BETA

kandi has reviewed thumbor and discovered the below as its top functions. This is intended to give you an instant insight into thumbor implemented functionality, and help decide if they suit your requirements.

Write images to a gif file

Calculates the sub - rectangles of the image
Process subRectangles
Converts images to PIL

Load data from a URL

Return a prepare_cURL callback function
Get the value from the compatibility layer

Load image

Load image data

Copy another image from another engine

Parse commandline arguments

Run dark eye detection

Read the thumbnail

Run the optimizer

Validate configuration

Start the server

Get server parameters

Load results

Detect features

Run setup

Fill image with given color

Handle POST request

Get parameters for thumbnailor

Reorient the object

Run jpgtran optimizer

Read multiple images from multiple images

Get all kandi verified functions for this library.

thumbor Key Features

thumbor is an open-source photo thumbnail service by globo.com

thumbor Examples and Code Snippets

See all related Code Snippets

Community Discussions

Trending Discussions on thumbor

How have a image in the center of the dashboard header in Shinydashboard R?
How to read text from another file in nginx.conf file?
How can I extract the link to the image here?
Thumbor focal() filter not taken into account
How can I create a shorter version of my parallax?
How to map JSON data from newsAPI in React App?
Flutter: why I'm getting only 3 results in api call using chopper?
Lighthouse keeps showing Defer offscreen images
Multiple images are showing in django image grid
Array map function not return updated items

Trending Discussions on thumbor

QUESTION

How have a image in the center of the dashboard header in Shinydashboard R?

Asked 2022-Jan-13 at 21:58

I have the following code that makes a simple shiny app.

```
library(shinydashboard)
library(shiny)
ui <- dashboardPage(
  dashboardHeader(title = tags$img(src='https://cdn.vox-cdn.com/thumbor/Ous3VQj1sn4tvb3H13rIu8eGoZs=/0x0:2012x1341/1400x788/filters:focal(0x0:2012x1341):format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/47070706/google2.0.0.jpg', height = '60', width ='100')),
  dashboardSidebar(
    sidebarMenuOutput("menu")
  ),
  dashboardBody()
)

server <- function(input, output) {
  output$menu <- renderMenu({
    sidebarMenu(
      menuItem("Overview", icon = icon("tachometer"))
      
    )
  })
}
shinyApp(ui, server)
```

And the image is outputted on top of the menu to the right, but my goal would be to have the image be more in the middle of the dashboard. I know the menu shifts the navabr a bit but I would like to keep it as center as possible.

But my desired output would be like this. I made a sample with paint. Is it possible to still have some text or if a reference can be posted where I can learn more about the dashboard header function I would appreciate it.

ANSWER

Answered 2022-Jan-13 at 21:58

Here you go

There is no way you can add the image to the header part on the right side with the function from shinydashboard, but let's have fun with the latest htmltools by injecting styles and tags into the header.

library(shinydashboard)
library(shiny)
header_img <- tags$img(
    src='https://cdn.vox-cdn.com/thumbor/Ous3VQj1sn4tvb3H13rIu8eGoZs=/0x0:2012x1341/1400x788/filters:focal(0x0:2012x1341):format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/47070706/google2.0.0.jpg',
    style = 'height: 50px; width: 100px; position: absolute; left: 50%; transform: translateX(-50%);'
)
header <-  htmltools::tagQuery(dashboardHeader(title = ""))
header <- header$
    addAttrs(style = "position: relative")$ # add some styles to the header 
    find(".navbar.navbar-static-top")$ # find the header right side
    append(header_img)$ # inject our img
    allTags()

ui <- dashboardPage(
    header,
    dashboardSidebar(
        sidebarMenuOutput("menu")
    ),
    dashboardBody()
)

server <- function(input, output) {
    output$menu <- renderMenu({
        sidebarMenu(
            menuItem("Overview", icon = icon("tachometer"))
            
        )
    })
}
shinyApp(ui, server)

The img is placed on the center of right side header, not the center of the entire header length. If you want to adjust to the center of the whole length, try to change translateX(-50%) of the img to a number you like.

Source https://stackoverflow.com/questions/70684201

QUESTION

How can I extract the link to the image here?

Asked 2021-Aug-04 at 07:27

I'm using BS4 to scrape webpages for article titles, author names, and links to their cover images.

This is the HTML tag I found for the image of a specific article:

<img src="https://cdn.theatlantic.com/thumbor/lYaNkJfiPr8_Jp5Pj5ikj94GJgQ=/183x0:2000x1125/210x130/media/img/2021/06/WEL_Tiffany_KodakOpenerAlt-1/original.jpg" alt="Photo collage on a yellow background" loading="lazy" class="Image_root__J8Wlz Image_lazy__1w_jB Image_loaded__3uNg2 LandingRiver_image__1ZCUb" width="210" height="130" srcset="https://cdn.theatlantic.com/thumbor/lYaNkJfiPr8_Jp5Pj5ikj94GJgQ=/183x0:2000x1125/210x130/media/img/2021/06/WEL_Tiffany_KodakOpenerAlt-1/original.jpg, https://cdn.theatlantic.com/thumbor/NL-ZZp6sHiX_1WX2bn9f9o1WWjk=/183x0:2000x1125/420x260/media/img/2021/06/WEL_Tiffany_KodakOpenerAlt-1/original.jpg 2x">

This is the code I'm using to get the image URL:

cover_image = card.find('img')['src']

However, instead of

"https://cdn.theatlantic.com/thumbor/lYaNkJfiPr8_Jp5Pj5ikj94GJgQ=/183x0:2000x1125/210x130/media/img/2021/06/WEL_Tiffany_KodakOpenerAlt-1/original.jpg"

it keeps returning

data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 210 130' /%3E

I've also tried getting the 'srcset' part of the tag but that doesn't even show up in the code.

What can I do in such cases?

ANSWER

Answered 2021-Aug-04 at 07:27

Try selecting using the class name as sugggested by Epis95:

cover_image = card.find('img',class_ = "Image_root__J8Wlz Image_lazy__1w_jB Image_loaded__3uNg2 LandingRiver_image__1ZCUb")['src']

# and if you want the best image quality you could do

# firstly get the srcset
cover_image = card.find('img',class_ = "Image_root__J8Wlz Image_lazy__1w_jB Image_loaded__3uNg2 LandingRiver_image__1ZCUb")['srcset']

# as srcset is a string but the links are seperated using ',' you could split it on the same
cover_image = cover_image.split(',')

# after splitting the best image quality lik is the last one so get the last element of the new list that you have after splitting
cover_image = cover_image[-1]

# you now have a string with 2x as the unwanted part at the last and you could remove that using the slice operation
cover_image = cover_image[:-2]    # slice it upto the third last characterto chop off '2x'

# now you have a string with leading and trailing spaces so strip it to remove any leading or trailing spaces
cover_image = cover_image.strip()
print(cover_image)    # this is the best quality image you can get

Output:

https://cdn.theatlantic.com/thumbor/NL-ZZp6sHiX_1WX2bn9f9o1WWjk=/183x0:2000x1125/420x260/media/img/2021/06/WEL_Tiffany_KodakOpenerAlt-1/original.jpg

Source https://stackoverflow.com/questions/68645596

QUESTION

How can I create a shorter version of my parallax?

Asked 2021-Apr-10 at 07:11

Basically, I have created a parallax effect with 6 images with media queries for desktop and mobile. The images display fine in desktop mode. However, once I shrink my screen to mobile mode, some of the images just cut off and are not responsive. Because of this, I would like my parallax to only show 4 images on mobile view and the regular 6 images on desktop view. I have tried rearranging my code with my media queries to get this, but I can't seem to figure out a way. How can I do this so only the "viewable" images are only shown on mobile view? Any help is appreciated. Here is my code.

section.module h2 {
    margin-bottom: 40px;
    font-size: 30px;
}
section.module p {
    margin-bottom: 40px;
    font-size: 16px;
    font-weight: 300;
}
section.module.content {
    padding: 40px 0;
    background-color: #AFC9F1;
}
section.module.parallax {
    height: 800px;
    background-position: 50% 50%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
}
section.module.parallax h1 {
    color: rgba(255, 255, 255, 0.8);
    font-size: 48px;
    line-height: 600px;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}
section.module.parallax-0 {
    background-image: url("https://mms.businesswire.com/media/20170310005534/en/574694/5/NIO_EVE_04_Fr34.jpg");
    height: 100vh;
    opacity: 0.65;
}
section.module.parallax-1 {
    background-image: url("https://mms.businesswire.com/media/20170310005534/en/574694/5/NIO_EVE_04_Fr34.jpg");
}
section.module.parallax-2 {
    background-image: url("https://autodesignmagazine.com/wp-content/uploads/2017/03/2017031301_nio_eve.jpg");
}
section.module.parallax-3 {
    background-image: url("https://www.nio.com/prod/s3fs-public/styles/tile_double_square_desktop_1x/public/2018-09/zip-eve-gallery-5.jpg?Agd8SYcynlrs7LqQu6N.GbrzxLw8vYJF&itok=hGg1N1lm");
}
section.module.parallax-4 {
    background-image: url("https://cdn.vox-cdn.com/thumbor/bP1-Ysv4wJcYCMLrAoJv-T03Oto=/0x0:1920x1080/1400x1050/filters:focal(807x387:1113x693):format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/53656791/EVE_005_Overhead.0.jpg");
}
section.module.parallax-5 {
    background-image: url("https://cimg1.ibsrv.net/ibimg/hgm/1920x1080-1/100/595/nio-eve-concept-2017-sxsw_100595869.jpg");
}
/* Parallax Mobile */
@media (min-width: 200px) and (max-width: 899px) {
    section.module.parallax-0 {
        background-image: url("https://miro.medium.com/max/3840/1*LT87ktpOB50UhsrRJYjI5A.jpeg");
    }
    section.module.parallax-1 {
        background-image: url("https://miro.medium.com/max/3840/1*LT87ktpOB50UhsrRJYjI5A.jpeg");
    }
    section.module.parallax-2 {
        background-image: url("https://autodesignmagazine.com/wp-content/uploads/2017/03/2017031301_nio_eve.jpg");
    }
    section.module.parallax-3 {
        background-image: url("https://www.nio.com/prod/s3fs-public/styles/tile_double_square_desktop_1x/public/2018-09/zip-eve-gallery-5.jpg?Agd8SYcynlrs7LqQu6N.GbrzxLw8vYJF&itok=hGg1N1lm");
    }
    section.module.parallax-4 {
        background-image: url("https://cdn.vox-cdn.com/thumbor/bP1-Ysv4wJcYCMLrAoJv-T03Oto=/0x0:1920x1080/1400x1050/filters:focal(807x387:1113x693):format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/53656791/EVE_005_Overhead.0.jpg");
    }
    section.module.parallax-5 {
        background-image: url("https://cimg1.ibsrv.net/ibimg/hgm/1920x1080-1/100/595/nio-eve-concept-2017-sxsw_100595869.jpg");
    }
}

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width">
    <title>Parallax</title>
    <link href="style.css" rel="stylesheet" type="text/css" />
    <link href='https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.min.css' rel='stylesheet'>
  </head>
  <body>
    <section class="module parallax parallax-0">
        <div class="container text-center"></div>
    </section>
  <section class="module parallax parallax-1">
        <div class="container text-center"></div>
    </section>
  <section class="module parallax parallax-2">
        <div class="container text-center"></div>
    </section>
    <section class="module parallax parallax-3">
        <div class="container text-center"></div>
    </section>
    <section class="module parallax parallax-4">
        <div class="container text-center"></div>
    </section>
    <section class="module parallax parallax-5">
        <div class="container text-center"></div>
    </section>
    <script src="script.js"></script>
  </body>
</html>

ANSWER

Answered 2021-Apr-10 at 07:11

You can play with background-size:contain on your section.module.parallax class for the mobile view. And for displaying images, you can put display: none on images you don't want to show on mobile.

If I understood you well.

Source https://stackoverflow.com/questions/66944263

QUESTION

How to map JSON data from newsAPI in React App?

Asked 2021-Feb-21 at 07:31

Here is the JSON:

{"status":"ok","totalResults":38,"articles":[{"source":{"id":null,"name":"Vulture"},"author":"Halle Kiefer","title":"Chris D’Elia Says ‘Sex Controlled My Life’ in First YouTube Video After Sexual Misconduct Claims - Vulture","description":"The comedian repeated his previous assertion that all of his relationships have been “consensual and legal.”","url":"http://www.vulture.com/2021/02/chris-delia-denies-sexual-misconduct-claims-in-new-video.html","urlToImage":"https://pyxis.nymag.com/v1/imgs/52f/895/010feba0fce74701cd59d05fee82cd8f3e-19-Chris-DElia.1x.rsocial.w1200.jpg","publishedAt":"2021-02-20T04:44:14Z","content":"Months after multiple accusations of sexual harassment and misconduct led to Netflix pulling his upcoming prank show, former costar Whitney Cummings condemning his pattern of predatory behavior, and … [+1667 chars]"},{"source":{"id":null,"name":"Bleeding Green Nation"},"author":"Brandon Lee Gowton","title":"Carson Wentz finally breaks silence to say goodbye to Philadelphia - Bleeding Green Nation","description":"Hear from the former Eagles quarterback.","url":"https://www.bleedinggreennation.com/2021/2/19/22292387/carson-wentz-finally-breaks-silence-goodbye-philadelphia-message-instagram-trade-colts-quarterback","urlToImage":"https://cdn.vox-cdn.com/thumbor/_39FOw4LUCxXPeLQzJWmPO4UAhM=/0x0:3650x1911/fit-in/1200x630/cdn.vox-cdn.com/uploads/chorus_asset/file/22316651/usa_today_13471769.jpg","publishedAt":"2021-02-20T04:31:15Z","content":"Carson Wentz finally broke his silence.\r\nWe previously hadnt heard directly from the now-former Eagles quarterback (aside from a Twitter ad) since his postgame press conference after getting benched … [+1420 chars]"},{"source":{"id":"the-times-of-india","name":"The Times of India"},"author":"Reuters","title":"'Something we've never seen' - Mars rover beams back selfie from moment before landing - Times of India","description":"US News: The color photograph, likely to become an instant classic among memorable images from the history of spaceflight, was snapped by a camera mounted on t","url":"https://timesofindia.indiatimes.com/world/us/something-weve-never-seen-mars-rover-beams-back-selfie-from-moment-before-landing/articleshow/81121548.cms","urlToImage":"https://static.toiimg.com/thumb/msid-81121566,width-1070,height-580,imgsize-119979,resizemode-75,overlay-toi_sw,pt-32,y_pad-40/photo.jpg","publishedAt":"2021-02-20T04:16:00Z","content":"'Something we've never seen' - Mars rover beams back selfie from moment before landing\r\n<ul><li>News</li>\r\n<li>World News</li>\r\n<li>US News</li>\r\n<li>'Something we've never seen' - Mars rover beams b… [+46 chars]"},{"source":{"id":null,"name":"PEOPLE"},"author":"Naledi Ushe","title":"Anne Hathaway Says She Was the Ninth Choice for Devil Wears Prada Role: 'Never Give Up' - msnNOW","description":"Rachel McAdams was the production company’s first choice for the part of Andy Sachs","url":"https://people.com/movies/anne-hathaway-ninth-choice-devil-wears-prada-role/","urlToImage":"https://imagesvc.meredithcorp.io/v3/mm/image?q=85&c=sc&poi=%5B679%2C220%5D&w=1333&h=667&url=https%3A%2F%2Fstatic.onecms.io%2Fwp-content%2Fuploads%2Fsites%2F20%2F2021%2F02%2F18%2Fgolden-globes-anne-hathaway-2000.jpg","publishedAt":"2021-02-20T04:10:29Z","content":"Anne Hathaway is one tough cookie when it comes to the acting industry.\r\nHathaway, 38, who had to fight to land her part in the 2006 comedy-drama, The Devil Wears Prada, revealed during an appearance… [+1923 chars]"},{"source":{"id":"fox-news","name":"Fox News"},"author":"Nate Day","title":"Meghan Markle, Prince Harry will no longer serve as patrons for some organizations - Fox News","description":"Prince Harry and Meghan Markle will no longer serve as patrons for a number of organizations including the Queen's Commonwealth Trust and the Rugby Football Union.","url":"https://www.foxnews.com/entertainment/meghan-markle-prince-harry-no-longer-patrons-organizations","urlToImage":"https://static.foxnews.com/foxnews.com/content/uploads/2021/01/cac1d84a-Meghan-Markle-prince-harry-timeline-photo.jpg","publishedAt":"2021-02-20T03:08:11Z","content":"Meghan Markle and Prince Harry will no longer serve as patrons for several organizations following the confirmation of their royal exit.\r\nIn early 2020, the pair announced that they'd walk away from … [+2656 chars]"},{"source":{"id":"the-hill","name":"The Hill"},"author":"Tal Axelrod","title":"More airlines to start collecting contact tracing information from passengers | TheHill - The Hill","description":"More airlines said Friday they will start asking for passengers’ personal information on flights to the U.S. to beef up their contact tracing capabilities.","url":"https://thehill.com/policy/transportation/539696-more-airlines-to-start-collecting-contact-tracing-information-from","urlToImage":"https://thehill.com/sites/default/files/airplane10082020.jpg","publishedAt":"2021-02-20T02:50:39Z","content":"More airlines said Friday they will start asking for passengers personal information on flights to the U.S. to beef up their contact tracing capabilities.\r\nAirlines for America, an industry trade gro… [+1639 chars]"},{"source":{"id":null,"name":"Daily Beast"},"author":"Cheyenne Roundtree","title":"The Curious Timing of Kim Kardashian's Divorce From Kanye West - The Daily Beast","description":"The family has long utilized their popular reality show to address situations they wouldn’t elaborate on in real time, instead waiting for the dust to settle to have the final say.","url":"https://www.thedailybeast.com/the-curious-timing-of-kim-kardashians-divorce-from-kanye-.....}]}

Here is the code:

export const App = () => {
    const [newsId, setNewsId] = useState([]);
    useEffect(() => {
        NewsAPI()
         .then(data => JSON.stringify(data))
         .then(data => setNewsId(data));
         return () => {};
     }, []);
     return (<> {newsId.map(data => <NewsCard key={newsId} newsID={data}/>)} </>
};

I tried to map JSON array from newsAPI.

When I simply print out the parameter, I received full JSON data.

But I get the error:

TypeError: newsId.map is not a function

when I tried to map data and order the result by its title.I got full JSON data if I just set {newsId} instead of mapping it.

I have tried {newsId.articles} and {newsId['articles]}, but both return nothing.

ANSWER

Answered 2021-Feb-21 at 07:31

You can see the description for JSON function here:

JSON.parse() takes a JSON string and transforms it into a JavaScript object.
JSON.stringify() takes a JavaScript object and transforms it into a JSON string.

In this case the fetch api always return Response Object. This is just an HTTP response, not the actual JSON. To extract the JSON body content from the response, we use the json() method. And after that you can use newsId.articles to get articles list

const [articles, setArticles] = useState([]);
useEffect(() => {
    NewsAPI()
     .then(response => response.json())
     .then(data => setArticles(data.articles));
     return () => {};
 }, []);

 return <>{articles.map(data => <NewsCard key={newsId} newsID={data}/>)}</>

Source https://stackoverflow.com/questions/66289155

QUESTION

Flutter: why I'm getting only 3 results in api call using chopper?

Asked 2021-Feb-19 at 06:52

when call the api i get only 3 results when I use chopper but when use normal http package than I get more result

my chopper service file and I have generated the *.chopper.dart file

import 'package:chopper/chopper.dart';

part 'chopper_api_service.chopper.dart';

@ChopperApi(baseUrl: 'https://newsapi.org/v2')
abstract class ChopperApiService extends ChopperService {
  @Get(path: '/top-headlines')
  Future<Response> getNews({
    @Query('apiKey') String apiKey = 'secret',
    @Query('category') String category = 'health',
    @Query('country') String country = 'in'
  });

  static ChopperApiService create() {
    final client = ChopperClient(
      baseUrl: 'https://newsapi.org/v2',
      services: [
        _$ChopperApiService(),
      ],
      converter: JsonConverter(),
    );
    return _$ChopperApiService(client);
  }
}

In UI where I'm trying to the result,


import 'dart:convert';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:chopper/chopper.dart';
import 'package:flutter/material.dart';
import 'package:lottie/lottie.dart';
import '../../../constants/url.dart';
import '../models/chopper_api_service.dart';


class ChopperNewsCard extends StatefulWidget {
  @override
  _ChopperNewsCardState createState() => _ChopperNewsCardState();
}

class _ChopperNewsCardState extends State<ChopperNewsCard> {
  ChopperApiService chopperApiService;
  Future<Response> apiResponse;
  @override
  void initState() {
    super.initState();
    chopperApiService = ChopperApiService.create();
    apiResponse = chopperApiService.getNews();
  }

  @override
  Widget build(BuildContext context) {
    var height = MediaQuery.of(context).size.height;
    var width = MediaQuery.of(context).size.width;

    return FutureBuilder<Response>(
      future: apiResponse,
      builder: (context, snapshot) {
        if (snapshot.connectionState == ConnectionState.done) {
          final news = jsonDecode(snapshot.data.bodyString);
          print(news);  //<-----printing it
          return Container(
            height: height * 0.37,
            width: double.infinity,
            child: ListView.builder(
              itemCount: news.length,
              physics: AlwaysScrollableScrollPhysics(),
              scrollDirection: Axis.horizontal,
              shrinkWrap: true,
              itemBuilder: (context, index) {
                return Container(
                  width: width * 0.70,
                  padding: EdgeInsets.only(right: width * 0.05),
                  child: Card(
                    shape: RoundedRectangleBorder(
                      borderRadius: BorderRadius.circular(15),
                    ),
                    elevation: 3,
                    child: Column(
                      children: [
                        ClipRRect(
                          borderRadius: BorderRadius.circular(15),
                          child: CachedNetworkImage(
                            imageUrl:
                                news['articles'][index]['urlToImage'] == null
                                    ? Url.noImage
                                    : news['articles'][index]['urlToImage'],//<--- this 
                            fit: BoxFit.cover,
                            width: double.infinity,
                            height: height * 0.2,
                            placeholder: (context, url) =>
                                Center(child: CircularProgressIndicator()),
                            errorWidget: (context, url, error) =>
                                Icon(Icons.error_outline_sharp),
                          ),
                        ),
                        Padding(
                          padding: EdgeInsets.only(
                              right: width * 0.03,
                              left: width * 0.03,
                              top: width * 0.03),
                          child: Text(
                            news['articles'][index]['title'],
                            maxLines: 4,
                            overflow: TextOverflow.ellipsis,
                            style: TextStyle(
                              fontWeight: FontWeight.bold,
                              fontSize: 16,
                            ),
                          ),
                        ),
                      ],
                    ),
                  ),
                );
              },
            ),
          );
        } else {
          return Center(
              child: Lottie.asset('assets/lottie/loading.json',
                  height: width * 0.5, width: width * 0.5),);
        }
      },
    );
  }
}

when print it also shows only 3 results but in the totalResults category it says 70,

{status: ok, totalResults: 70, articles: [{source: {id: null, name: Deseret News}, author: Herb Scribner, title: Why COVID symptoms still appears if you take zinc, vitamin c - Deseret News, description: Do vitamin C and zinc help fight off COVID-19? A new sutdy says that’s not the case., url: https://www.deseret.com/u-s-world/2021/2/18/22288048/covid-19-symptoms-zinc-vitamin-c, urlToImage: https://cdn.vox-cdn.com/thumbor/6Vl9l5InMVmP9-Oqu_WVvgcThYw=/0x147:2510x1461/fit-in/1200x630/cdn.vox-cdn.com/uploads/chorus_asset/file/22294628/AP20357531088811.jpg, publishedAt: 2021-02-19T04:00:00Z, content: A new study suggests that vitamin C and zinc dont help fight off COVID-19, even when theyre taken at high doses.
Whats going on?
The study published in mid-February in JAMA Network Open found that … [+1522 chars]}, {source: {id: google-news, name: Google News}, author: null, title: Sask. health-care worker dies after positive COVID-19 test - CBC News: The National, description: null, url:<…>

now do I need add something in the query parameters to get more results

ANSWER

Answered 2021-Feb-19 at 06:52

By default, newsapi shows 20 results per page. You can control that by using pageSize and page params.

Top headlines documentation

print(news); have limited output and will not print the entire map.

Use the following print statement to check how many object do you have in the articles list: print('Articles count: ${news['articles'].length}');

You need to change this code in order to get the item count:

  child: ListView.builder(
              itemCount: news['articles'].length,

Source https://stackoverflow.com/questions/66272677

QUESTION

Lighthouse keeps showing Defer offscreen images

Asked 2021-Jan-06 at 09:00

So every time I run lighthouse evaluation, it keeps telling me to "Defer offscreen images", now, what they recommend is to use their script and to set the images like this :

<img data-src="images/flower3.png" class="lazyload" alt="">

And this is what I have:

    <picture>
      <source sizes="(min-width:1025px) 25vw,(min-width:0px) 100vw" 
       srcset="https://thumbor.mypage/YiZprbZxOEdzieJbcj8ZnIKIrE4=/640x0/https%3A%2F%2Fmyimage.jpg 640w,...">
      <img alt="" sizes="(min-width:1025px) 25vw,(min-width:0px) 100vw" 
         data-object-fit="cover" 
         class=" ls-is-cached lazyloaded" 
         data-src="https://thumbor.mypage/yoi8S4dSPBIU5ekNg6x7NvFFFPM=/320x0/https%3A%2F%2Fmyimage.jpg" 
         srcset="https://thumbor.mypage/YiZprbZxOEdzieJbcj8ZnIKIrE4=/640x0/https%3A%2F%2Fmyimage.jpg 640w,https://thumbor.mypage/qoSnHcwy_fuA8C2gJaKnxnCJ00A=/1024x0/https%3A%2F%2Fmyimage.jpg 1024w,...">
    </picture>

So as you can see, I check the two things they ask for to match the right code: the lazyload class and the data-src attribute, maybe I'm missing something but for some reason, it only fails with a couple images. please help!

ANSWER

Answered 2021-Jan-06 at 09:00

Short Answer

The second an image has a src or srcset attribute set it will load the image. You need to use a lazy load library that supports the <picture> element and make sure you haven't set the src or srcset on your <picture> elements.

Long Answer

You have misunderstood a key aspect here. The class="lazyload" and data-src="images/flower3.png" are part of a lazy load solution using JavaScript. You can't just copy these attributes without the related JavaScript code.

With their example (which I assume is this example of lazy loading as you did not link it in your question) there is a script you must include in order to make lazy loading work.

If you look at their example these <img> elements do not have a src attribute set and so they are invalid and will not load the image.

What the script does is look for <img> elements that have a class of lazyload and then look for the data-src attribute.

It then takes whatever is in the data-src attribute and adds that to the src attribute of the image once the image is within the viewport.

This then makes the image valid (as an <img> element must have a src attribute to be valid and actually load the image) and so it loads.

In your example you already have the src set via the srcset attribute in your HTML so the images are loaded instantly, the data-src does nothing in this case.

I am not sure whether the lazy loading library in that example works with <picture> elements (it appears to want you to use an <img> element with data attributes for media queries) so you may want to research a lazy loading library that works with the <picture> element now that you (hopefully) understand why your implementation is not working.

Source https://stackoverflow.com/questions/65587866

QUESTION

Multiple images are showing in django image grid

Asked 2021-Jan-06 at 06:39

I am somewhat new to Django. I am making an image grid (html). But the images are shown multiple times in that grid. This is what I mean;

Here are my files;

Views.py

from django.shortcuts import render

photos = [
    {
        'user_im': 'https://thumbor.forbes.com/thumbor/fit-in/416x416/filters%3Aformat%28jpg%29/https%3A%2F%2Fspecials-images.forbesimg.com%2Fimageserve%2F5f47d4de7637290765bce495%2F0x0.jpg%3Fbackground%3D000000%26cropX1%3D1398%26cropX2%3D3908%26cropY1%3D594%26cropY2%3D3102',
        'photo': 'https://images.unsplash.com/photo-1515199967007-46e047fffd71?ixlib=rb-1.2.1&ixid=MXwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHw%3D&auto=format&fit=crop&w=975&q=80',
        'date_shared': '4th January, 2020',
        'caption': 'A wonderful pic',
    },
    {
        'user_im': 'https://cdn.britannica.com/67/19367-050-885866B4/Valley-Taurus-Mountains-Turkey.jpg',
        'photo': 'https://images.unsplash.com/photo-1547500135-9f6e5a9a6aff?ixlib=rb-1.2.1&ixid=MXwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHw%3D&auto=format&fit=crop&w=1050&q=80',
        'date_shared': '4th January, 2020',
        'caption': 'A nice picture',
    },
    {
        'user_im': 'https://cdn.britannica.com/67/19367-050-885866B4/Valley-Taurus-Mountains-Turkey.jpg',
        'photo': 'https://i.guim.co.uk/img/media/6088d89032f8673c3473567a91157080840a7bb8/413_955_2808_1685/master/2808.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=412cc526a799b2d3fff991129cb8f030',
        'date_shared': '4th January, 2020',
        'caption': 'A nice picture',
    }
]

def home(request):
    context = {
        'photos': photos,
    }
    return render(request, 'photos/home.html', context)

def explore(request):
    context = {
        'photos': photos,
    }
    return render(request, 'photos/explore.html', context)

grid.py

{% extends 'photos/base.html' %}
{% block content %}

    <h1><strong>These are some of the best</strong></h1>
    <h5 class="text-muted">Just for you...</h5>

    {% for photo in photos %}

        <div style="width:100%">
            {% for photo in photos %}

                <div style="float:left; width:200px; height:200px;">
                    <img src="{{ photo.photo }}" height="200px" width="200px">
                </div>
                
            {% endfor%}
        </div>

    {% endfor %}

{% endblock content %}

app urls.py

from django.urls import path, include
from . import views

urlpatterns = [
    path('', views.home, name='home'),
    path('grid/', views.grid, name='grid'),
]

I am passing in some context. Will it be fixed if I upload the images?

Please give me a solution to this. Thank you.

ANSWER

Answered 2021-Jan-06 at 03:20

They are showing up multiple times because you have a nested for loop. Pick one or the other, but not both, and you will end up with one of each image.

{% for photo in photos %} <-- loop one (for the rows)

    <div style="width:100%">
        {% for photo in photos %} <-- loop two (for the columns)

            <div style="float:left; width:200px; height:200px;">
                <img src="{{ photo.photo }}" height="200px" width="200px">
            </div>
            
        {% endfor%}
    </div>

Source https://stackoverflow.com/questions/65589636

QUESTION

Array map function not return updated items

Asked 2020-Dec-04 at 13:08

I am facing a weird problem (at-least to me) where JS Array method map() is not returning updated array as per map call back logi. I have an the following function

1  handleChange (id){
2     this.setState((prevState)=>{
3      const todos = prevState.myTodos.map(item => {
4        if(item.id === id){
5          //console.log("ITEM.id is ",item.id,"id passed is ",id,"status is ",item.completed)
6          item.completed = !item.completed
7        }
8        //console.log("ITEM.id is ",item.id,"id passed was ",id,"new status is ",item.completed)
9        return item
10      })
11      return {myTodos : todos}
12    })
13  }

In this function I am updating state of App object. Just before the return item in line 8 i can log the output and see that item.completed is changed but when callback returns the item object it is not storing updated item in todos variable.

Any hint could be of great help. Thanks in anticipation

Following is the full code: App.js Component

import React from 'react';
//Importing components
import Todo from './components/Todo';

import './App.css';
//import todosData from './todosData';
const todosData=[  {
      id:1,
      text:"Take out the trash",
      completed:true,
      imageUrl : "https://environmentamerica.org/sites/environment/files/w-takeout-trash-wk1003mike-shutterstock_422191876.jpg"
  },
  {
      id:2,
      text:"Grocery Shopping",
      completed:false,
      imageUrl : "https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/Supermarkt.jpg/240px-Supermarkt.jpg"

  },
  {
      id:3,
      text:"Clean gecko tank",
      completed:false,
      imageUrl : "https://i.ytimg.com/vi/hy7eLGcCU9Q/hqdefault.jpg"
  },
  {
      id:4,
      text:"Mow Lawn",
      completed:true,
      imageUrl : "https://cdn.theatlantic.com/thumbor/hbIVuzfmIWAZZ_zKMj1CKSeMkAM=/507x56:2754x1320/720x405/media/img/mt/2016/07/RTR20MER/original.jpg"
  }
];

class App extends React.Component {
  constructor(){
    super()
    this.state={
      myTodos : todosData,
      counter : 1
    }
    this.handleClick = this.handleClick.bind(this)
    this.handleChange = this.handleChange.bind(this)
  }
  handleClick (){
    this.setState((prevState)=>{

      const counterUpdated = prevState.counter +1
      return {counter : counterUpdated}
      
    })
  }
  handleChange (id){
     this.setState((prevState,anything)=>{
      const todos = prevState.myTodos.map(item => {
        if(item.id === id){
          console.log("ITEM.id is ",item.id,"id passed is ",id,"status is ",item.completed)
          item.completed = !item.completed
        }
        console.log("ITEM.id is ",item.id,"id passed was ",id,"new status is ",item.completed)
        return item
      })
      return {myTodos : todos}
    })
  }
  render(){
    const todoItems = this.state.myTodos.map(item=> {return <Todo key={item.id} todo={item} handleChange={this.handleChange} />})
    return (
    <div className="App">
      <header className="App-header">
        React Course from vSchool. <button onClick={this.handleClick} >Counter {this.state.counter}</button>
      </header>
      <main className="todo-container">
        <div className="todo-list">
        {todoItems}
        </div>
      </main>
      <footer className="footer">This is copy right of no one except for images :)</footer>
      
      </div>

  );}
}
export default App;

Todo Component :

import React, { useState } from 'react'

function Todo(props){
    const [width,setWidth]=useState(140);
    const [height,setHeight]=useState(85);
    return(
        <div className="todo-item">
            <p style={{display : 'none'}}>{props.todo.id}</p>
            <p>{props.todo.text}</p>
            <input type="checkbox" checked={props.todo.completed}
             
             onChange={()=>{props.handleChange(props.todo.id)}}
             
             />
            <img 
            // onMouseOver={(e)=>{setWidth(250);setHeight(250);}} 
            // onMouseOut={(e)=>{setWidth(140);setHeight(85);}}
            src={props.todo.imageUrl} width={width} height={height}/>
            <hr />
        </div>
    );
}
export default Todo;

ANSWER

Answered 2020-Dec-04 at 13:08

You could try to make your if condition inline so that you don't use return . Something like:

handleChange (id){
    this.setState((prevState)=>{
    const todos = prevState.myTodos.map(item => 
            (item.id === id) ? {...item, completed: !item.completed} : item )
    })
}

Edited: This solution works because it returns a new JS object using the spread syntax {...item, completed: !item.completed}. In turn, this forces a new render call.

Source https://stackoverflow.com/questions/65142274

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