infinite scroll angular with api call

It fixed my issue, I hope it helps someone. After reading the article I added the attribute and it fixed my issue. The most modern mobile touch slider and framework with hardware accelerated transitions. lazysizes is a fast (jank-free), SEO-friendly and self-initializing lazyloader for images (including responsive images picture/srcset), iframes, scripts/widgets and much more. Setting pullingIcon will disable the native refresher. Thank you for the demo. But a 20 year delay between the first and second clap would, I think, be fitting. stackoverflow.com/questions/7357203/custom-scrollbars/, https://www.webkit.org/blog/363/styling-scrollbars/, NiceScroll : jQuery Scrolling plugin for desktop,mobile & touch devices, Tiny Scrollbar A lightweight jQuery plugin, 30+ JavaScript/Ajax Techniques for Sliders, Scrollers and Scrollbars, 21 Useful Scrollbar CSS/JavaScript Styling Tutorials, 15+ Free and Premium jQuery Scrolling Plugins, this article over at W3C provides some basic instructions, How to create a custom scrollbar on a div (Facebook style), http://lab.cubiq.org/iscroll/examples/simple/, http://jamesflorentino.github.io/nanoScrollerJS/, https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Scrollbars, Making location easier for developers with new data primitives, Stop requiring only one assertion per unit test: Multiple assertions are fine, Mobile app infrastructure being decommissioned. I had a similar issue. This smaller script, which should include lazySizes (and all its plugins), should then be placed before any other blocking elements (i.e. Simply, create a service and within an observable, have each component subscribe to tha observer and either pass new value or cosume value as needed. Custom color? I highly recommend starting with the OP's self response first: properly think about what can be done in the constructor vs what should be done in ngOnChanges().. The blur up / effect plugin allows you to create great over fade / blur up effects with low quality image placeholder, which improves the user experience and perceived performance in case you are using a low quality image approach. If Angular doesn't run change detection, then the view might not reflect the current state of the model. Use this to access the full Swiper API. It is a jQuery plugin scrollbar, so your scrollbars are controllable and look the same across the various OS's. Stumbled upon the issue dealing with the same use case. The RFC2616 referenced as "HTTP/1.1 spec" is now obsolete. I was dispatching actions the moment modal component recieve input. What is a good way to make an abstract board game truly alien? Note: As an alternative to the noscript pattern also checkout the noscript extension. A component was bound to a "global" object which was changed elsewhere and caused the Error to happen. @BernoulliIT Thanks , I am glad that it worked for you. The srcset attribute with the w descriptor and sizes attribute automatically also includes high DPI images. @PaulD.Waite Well, maybe, but that can be applied to anything. The only thing that confuses me is naming folders and files in the React app directory.. To name component files, some people follow TitleCase.js and some follow camelCase.js.. To name app directories, few people follow camelCase and few smallcase or small-case.. By default, Ionic slides use the built-in slide animation effect. While the refresher can be used with any type of content, a common use case in native apps is to display a list of data that gets updated on refresh. API Data Blog; See also the parent-fit extension. By using the official Swiper.js framework integrations: We plan to remove ion-slides and ion-slide in Ionic Framework v7. I see a similar approach in ReactJS and it works great but still not sure how it works in angular and what will be its impact. Angular will not see these changes during verification process and you will not get that error. No CSS custom properties available for this component. Emitted when the slide transition has started. JS API - options. Hi, I mean what did you do here to overcome the problem. Download the lazysizes.min.js script and include lazysizes in your webpage. This is more a side note than an answer, but it might help someone. Update. If Angular runs change detection until the model stabilizes, it might run forever. Developers have access to new features that they previously did not have when using. As others have mentioned, Microsoft supports scroll bar styling, but only for IE8 and above. To generate the uuid I've used the uuid npm module but you can use any method that generates a unique random uuid. Your weekly dose of JavaScript news. I think this is the only answer that addresses this error being caused by passing value(s) to a child. Fast track your learning and take the offical React Query course . But in a world of responsive retina optimized images on the one hand and JS widgets like carousels or tabs (a lot of initially hidden images) on the other hand lazy loading images becomes more and more important, so I created this project. This receives data changes from an observable, which is placed in the initalization function. In case you are creating the QueryClient for every request, React Query creates the isolated cache for this client, which is preserved in memory for the cacheTime period. talkingdotnet.com/dont-use-hidden-attribute-angularjs-2, blog.angular-university.io/onpush-change-detection-how-it-works, https://blog.angularindepth.com/everything-you-need-to-know-about-the-expressionchangedafterithasbeencheckederror-error-e3fd9ce7dbb4, developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/, https://angular.io/guide/component-interaction#parent-listens-for-child-event, https://blog.angular-university.io/angular-debugging/, Making location easier for developers with new data primitives, Stop requiring only one assertion per unit test: Multiple assertions are fine, Mobile app infrastructure being decommissioned. 1. I wouldn't recommend using nicescroll, since it disables browser functionality. Add this style in the app.component.scss file..search-results-container{ margin: 40px; height: 350px; width: 500px; overflow: auto; } Else will remain same, the [scrollWindow] will its magic to implement infinite scrollable feature to any container. The fix was to wrap html referencing this problematic status field with "ngIf" which will check some other field already initialized. React Query supports two ways of prefetching data on the server and passing that to the queryClient. Use Git or checkout with SVN using the web URL. I had this sort of error in Ionic3 (which uses Angular 4 as part of it's technology stack). Recently, I have started learning ReactJS. Emitted when the slider is at its initial position. From React Query's perspective, these integrate in the same way, getStaticProps is shown below: The setup is minimal and this can be a quick solution for some cases, but there are a few tradeoffs to consider when compared to the full approach: React Query supports prefetching multiple queries on the server in Next.js and then dehydrating those queries to the queryClient. I am sure you will be able to find something that will fit your needs. what is the solution here? Run npx serverino -p 3333 and navigate to http://localhost:3333/tests/. The better solution, in the parent component is to add detectChanges() after setting the config. Suddenly you get this error and it doesn't seem to make any sense. This means that the width of the image has to be calculable at least approximately before the image itself is loaded (This means you can not use width: auto). Refresher requires a scroll container to function. A tag already exists with the provided branch name. Please explain to me why I keep getting this error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Once I removed the part in HTML, this error was gone. ES2015+: Promises with then(). What if my html is bound to a getter returning time as "HH:MM" via get ClockValue() { return DateTime.TimeAMPM(new Date()) } it will eventually trip when the minutes change while detection is running, how can I fix this? Just in case you want to prevent scroll bar styling that hasn't been properly prefixed with "-vendor", this article over at W3C provides some basic instructions. To minimize reflows, content jumping or unpredictable behavior with some other JS widgets (isotope, masonry, some sliders/carousels) the width and the height of an image should be calculable by the browser before the image source itself is loaded: For flexible responsive images the CSS intrinsic ratio scaling technique should be used: In case you want to dynamically calculate your intrinsic ratios for many different formats you can vary the pattern to something like this: In case the exact ratio of your image is unknown you can also vary the intrinsic ratio like this: or at least add a min-height (and min-width) to minimize content jumps: In case you can't specify the image dimensions using CSS or one of the above suggested methods and your JS widgets have problems to calculate the right dimensions. It also prioritizes resources by differentiating between crucial in view and near view elements to make perceived performance even faster. The library is bundled automatically with all versions of Ionic Framework. In case you don't use a polyfill it is recommended that the first image candidate matches the fallback src. Both iOS and Android platforms provide refreshers that use properties exposed by their respective devices in order to give pull-to-refresh a fluid, native-like feel. Important: How sizes is calculated: The automatic sizes calculation uses the display width of the image. This will execute your code in another VM as a macro-task. Not only this doesn't answer the question, it's also terrible advice. There was a problem preparing your codespace, please try again. Source : https://nicescroll.areaaperta.com/. Painting . Twenty years of standards committees not noticing that people scroll things. That's only supported in IE, and not in other modern browsers. It may become also your number one tool to integrate responsive images. The solution you mentioned is not a hacky but a proper solution. As demonstrated, it's fine to prefetch some queries and let others fetch on the queryClient. How much to multiply the pull speed by. What is the difference between production and development mode in Angular2? A lot of understanding came once I understood the Angular Lifecycle Hooks and their relationship with change detection. In 2014 it was replaced by RFCs 7230-7237. see https://angular.io/guide/component-interaction#parent-listens-for-child-event. i.e. In those cases, use fetchQuery and catch any errors to handle those manually. Once the async operation has completed and the refreshing should end, complete() needs to be called on the refresher. Here is a an example which helps. A query can be used with any Promise based method (including GET and POST methods) to fetch data from a server. How can I customize a scroll bar via CSS (Cascading Style Sheets) for one div and not the whole page? Emitted when the previous slide has started. This works fine for frequently updating values given that change detection cycles occur so frequently. When the promise receives How can I avoid seeing this error in the future? A query can be used with any Promise based method (including GET and POST methods) to fetch data from a server. That means, if we update properties asynchronously the values will not be updated when the verification loop is running and we will not get ExpressionChanged error. Each section can be swiped Free footer templates with different options like bottom fixed footer, sticky footer, social media, cards and more. You might want to use a higher staleTime to avoid this double fetching, especially if you don't cache your markup. With the release of Ionic Framework v6, the Ionic Team has deprecated the ion-slides and ion-slide components in favor of using the official framework integrations provided by Swiper. From Custom scrollbars in WebKit, relevant CSS: As of version 64 Firefox supports scrollbar styling through the properties scrollbar-color (partially, W3C draft) and scrollbar-width (W3C draft). Transformer 220/380/440 V 24 V explanation. Options to pass to the swiper instance. @RicardoSaracino , Yes it has some drawbacks , you can refer this detailed link. See. Lock or unlock the ability to slide to the next slide. When I was tracking down this issue, it led me to investigate the link. Consistently styled and functional across most modern browsers, Not some ridiculous 3000-line bloated jQuery extension cr*p. This helps understand the flow. Replacing outdoor electrical box at end of conduit. See Properties for more information on unsupported properties. Having kids in grad school while both parents do PhDs, SQL PostgreSQL add attribute from polygon to all points inside polygon but keep all points not just those that fall inside polygon. Custom animations can be provided via the options property. https://codepen.io/adeelibr/pen/dKqZNb But as a gist of it. Not the answer you're looking for? @Nicky Yes. I was able to get something up and running in about 30 mins. We would like to show you a description here but the site wont allow us. Call this if you've added or removed child slides. I have not read the documentation but am sure this is part of why the error is shown. lazysizes allows you to write an endless variety of different markup patterns. When using [hidden] it does not physically change the DOM but merely hiding the element from the view, most likely using CSS in the back. It contains any number of Slide components. 3) If you really want to execute your code on same VM use like. Emitted when the user taps/clicks on the slide's container. we can set the value inside constructor, ngOnChanges, ngOninit without any error. For simplicity, lets say this property is updated via the following input property: In the parent component you are programatically setting it in ngAfterViewInit. The element is still there in the DOM but not visible depending on the condition's value. So if the condition changes before it is rendered to the view (which is highly possible in Angular's world), the error is thrown. The example also sets property suppressScrollOnNewData=true, which tells the lazysizes does not need any JS configuration: Add the class "lazyload" to your images/iframes in conjunction with a data-src and/or data-srcset attribute. Works like a charm in the situation I have at hand, thanks! The W3C article I mention at the end has the following statement and was recently updated (10 Oct 2014): Some browsers (IE, Konqueror) support the non-standard properties 'scrollbar-shadow-color', 'scrollbar-track-color' and others. splice() takes a copy of the original array. Why don't we know exactly where the Chinese rocket will fall? I hope this helps someone coming here: Thanks! Microsofts Activision Blizzard deal is key to the companys mobile gaming efforts. I was able to resolve it by opening the modal popup inside of setTimeout. Can you use option #3 with a style expression? (All of the following patterns can be also used for art direction using the picture element.). The iOS and Material Design native refreshers are enabled by default in Ionic. This means the server can prerender markup that is immediately available on page load and as soon as JS is available, React Query can upgrade or hydrate those queries with the full functionality of the library. So the idea was only display up to 10 elements from myArray. To clear the cache after it is not needed and to lower memory consumption, you can add a call to queryClient.clear() after the request is handled and dehydrated state has been sent to the client. Don't do it like this with RxJS objects. I was trying to get Angular to update a global flag bound to the *ngIf of an element, and I was trying to change that flag inside of the ngOnInit() life cycle hook of another component. Emitted when the user lets go of the content and has pulled down further than the. Does not apply when the refresher content uses a spinner, enabling the native refresher. 700+ components, stunning templates, 1-min installation, extensive tutorials & huge community. was first released, Swiper did not have framework specific integrations of its library, so ion-slides was created as a way of bridging the gap between the core Swiper library and frameworks such as Angular, React, and Vue. do we do this in the child or parent component? Thanks a ton. For some perspective, I wasn't born yet when WWW came out, and I'm a computer engineer now. The Promise API is a new feature of ECMAScript 6 (ES2015), but it has good browser support already. While lazy loading is a great feature, it is important for users that crucial in view images are loaded as fast as possible. In case you need to support IE8, see also the noscript extension (or use a modified noscript pattern or the LQIP pattern). We also call methods on the pagination API to change the pagination state. The list could go on. The setup is minimal and this can be a quick solution for some cases, but there are a few tradeoffs to consider when compared to the full approach:. Is there a way to make trades similar/identical to a university endowment manager to copy them? demo nanoScroller : http://jamesflorentino.github.io/nanoScrollerJS/, Firefox new version(64) support CSS Scrollbars Module Level 1, Source: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Scrollbars. It is recommended to concat all plugins together with lazySizes. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Add the following method to your function which you are calling on an event like click of button. In my case, I had an async property in LoadingService with a BehavioralSubject isLoading, Using the [hidden] model works, but *ngIf fails, I had this issue with between RxJS/Observables and static mock data. Stack Overflow for Teams is moving to its own domain! Copyright 2016, Vladimir Kharlampidi There are also other plugins/extension in the plugins folder. Is it OK to check indirectly in a Bash if statement for exit codes if they are multiple? Then I changed the data flow to Observable pattern as my 'real' data is coming from Akita (a state management library). Data should be modified during the refresher's output events. love this niceScroll, it doesn't add wrapper div around element which means it doesn't break the html structure. Additionally, because you are still using Swiper, the functionality of your slides component should remain exactly the same. Partly because it's in the area of the screen which the site designer should control entirely, anyway, so it poses no security risk, and partly because clearly- in practice- it's a non-issue. The exact implementation of these mechanisms may vary from platform to platform, but we recommend starting with Next.js which supports 2 forms of pre-rendering: React Query supports both of these forms of pre-rendering regardless of what platform you may be using. , responsive-image1.jpg 1x, responsive-image2.jpg 2x, progressive-image.jpg 1x, progressive-image2.jpg 2x, data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==, /* fade image in while loading and show a spinner as background image (good for progressive images) */, //page is optimized for fast onload event, . Connect and share knowledge within a single location that is structured and easy to search. This will show you exactly the flow and order of everything that gets set, and also exactly at what point Angular throws the error. Make a wide rectangle out of T-Pipes without loops. This may look quite obvious set out like this, and very similar to other answers but there's a subtle difference. JavaScript libraries and plug-ins can provide a cross-browser solution. This error occurs when a value changes more than once in the same change detection cycle. Work fast with our official CLI. Found footage movie where teens get superpowers after getting struck by lightning? Example with working demo. Adopted from Swiper.js: Emitted when the slider is at the last slide. lazysizes automatically detects new elements with the class lazyload so you won't need to call or configure anything in most situations. This ensures that each cycle returns only one value. Webkit scrollbar doesnt support on most of the browers. When this expression has finished any and all tasks, it should call the complete() method on the infinite scroll instance. Some browsers support non-spec CSS rules, such as ::-webkit-scrollbar in Webkit but is not ideal since it'll only work in Webkit. //add simple support for background images: //

, //use width of parent node instead of the image width itself, /* 16:9 = 56.25% = calc(9 / 16 * 100%) */, /* padding-bottom is calculated and rendered in to HTML */. A query is a declarative dependency on an asynchronous source of data that is tied to a unique key. Note: In case you are using either srcset/data-srcset or picture, we recommend to extend this pattern with either a data-src (see next pattern: "Combine data-srcset with data-src") or with a suitable src attribute (see: "modern pattern" or "LQIP"). Ionic Framework makes use of the Intl.DatetimeFormat Web API which allows us to automatically localize the month and day names according to the language and region set on the user's device.. The native refresher uses a circular spinner for Material Design, while iOS uses the lines spinner. This triggered all of my validators the moment one of these hidden fields changes, not a pretty site to see everything in red! If nothing happens, download GitHub Desktop and try again. How it works: First, select the and elements using the querySelector() method. A caveat here is that the server needs to have the correct time for this to work properly, but UTC time is used, so timezones do not factor into this. The whole idea is that a bad UI designer can make any element unintuitive, but as soon as you assume the site designer is incompetent, what's the point in allowing page customization at all? Can "it's down to him to fix the machine" and "it's up to him to fix the machine"? But each image has a different optimal pixel density, which might be lower (for example 1.5x) than the pixel density of your device (2x or 3x). LazySizes initializes itself automatically. To my knowledge this is perfectly fine in Angular. How does setTimeout or delay(0) fix this problem? The error was caused by changing the model in {{}} tags then trying to display the changed model in the *ngIf statement later on. Emitted while the user is pulling down the content and exposing the refresher. A summary of the API methods and events can be found at the top of this documentation page. The Slides component is a multi-section container. How can I transition height: 0; to height: auto; using CSS? Optionally you can also add a src attribute with a low quality image: Lazysizes is built upon the Responsive image standard and extends it with additional functionality. http://www.idangero.us/. Free for any use. Change a HTML5 input's placeholder color with CSS. The following documentation applies to the ion-slides component. For my issue, I was reading github - "ExpressionChangedAfterItHasBeenCheckedError when changing a component 'non model' value in afterViewInit" and decided to add the ngModel. @Viewchild not initializing during ngOnInit, Trigger animation after page load in angular 8, ExpressionChangedAfterItHasBeenCheckedError, Angular Error: ExpressionChangedAfterItHasBeenCheckedError, ExpressionChangedAfterItHasBeenCheckedError : when Event emitted from Child Component, ExpressionChangedAfterItHasBeenCheckedError invoking toastr in ngInit in Angular 6, Updating value in parent component from child one causes ExpressionChangedAfterItHasBeenCheckedError in Angular, Angular4 Change Detection ExpressionChangedAfterItHasBeenCheckedError, Data Binding causes ExpressionChangedAfterItHasBeenCheckedError, ExpressionChangedAfterItHasBeenCheckedError in two-way Angular binding, Angular QueryList change event ExpressionChangedAfterItHasBeenCheckedError, Opening an Angular modal window with a Radio Button group causes ExpressionChangedAfterItHasBeenCheckedError, ExpressionChangedAfterItHasBeenCheckedError Explained in toastr Angular. A footnote in Microsoft's submission to the UK's Competition and Markets Authority (CMA) has let slip the reason behind Call of Duty's absence from the Xbox Game Pass library: Sony and Is a planet-sized magnet a good interstellar weapon? According to the documentation, this method is called after Angular has already detected changes: Called once, after the first ngOnChanges(). The web has been around for over two decades, and there still isn't a standard way to style scrollbars. lazysizes supports all browsers, that support document.getElementsByClassName (== all browsers but not IE8-). Stack Overflow for Teams is moving to its own domain! We make service calls in ngOnInit in the following manner and use a variable displayMain to control the Mounting of the elements to the DOM. This component already had an update handler for when the bound object was updated, this event handler now calls changeDetectorRef.detectChanges() in combination with the ChangeDetectionStrategy.OnPush this works as desired without the error. The object fit polyfill plugin polyfills the object-fit and the object-position property in non supporting browsers. In case of an API/documentation change make sure to also document it here in the readme.md. ), Tip: Specifying image dimensions (minimizing reflows and avoiding page jumps), specifying image/iframe dimensions with the recommended aspect ratio definition, If you use the "unknown intrinsic ratio pattern" and the width of the loaded image will not (approximately) match the width of its container, the. Basically, you'll need to add the following CSS to a user style sheet associated with your browser. @ManuelAzar Apparently it does not. I stumbled upon this problem when trying to make the presence of a button depend on the state of the form: As far as I know, this syntax leads to the button being added and removed from the DOM based on the condition. 4000+ site blocks. The serch-results-container class will have following style, with its own height and width defined. Because staleTime defaults to 0, queries will be refetched in the background on page load by default. We provide a fallback refresher for apps running in iOS mode on devices that do not support rubber band scrolling. You feed it one prop, the id of scrollable content, for example: and within the component you monitor the target and make appropriate changes to the custom scrollbar. We would like to show you a description here but the site wont allow us. Application bundle sizes can shrink in some cases. Find your own/best pattern or choose one of the following. You signed in with another tab or window. Often the following general CSS rule might help: img[data-sizes="auto"] { display: block; width: 100%; } (see also specifying image/iframe dimensions with the recommended aspect ratio definition). In case a developer wants to show an image even if it is not inside the viewport the lazySizes.loader.unveil(DOMNode) can be called: Note: As a more lazy alternative the lazypreload class can be set: $(imgElem).addClass('lazypreload');. what was the problematic code? This answer, I believe, properly fulfills the question being asked in regards to not overriding the browsers main scrollbars by targeting the specific element desired. I find it helpful to add a lot of debugging statements like this throughout the affected components in the appropriate places. This object must be defined before the lazysizes script. So it look like this: In my case, I had this problem in my spec file, while running my tests. Got a very similar scenario, although my changed state was not a boolean flag but some enum (status) field. Although this might fix the issue, isn't this very expansive and overkilling the CD? You will still be able to use slides components in your application. Is there a different way I need to be thinking about my code to ensure I do not make the same mistakes? Developers can now be in control of the exact version of Swiper.js they want to use.

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