Angular 4 scroll animation

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AngularJS: Scroll Animations

Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. I've done a research to find a functionality within Angular 2 framework to detect the vertical position of the scroll bar so I can trigger animations in certain breakpoints, but the only helpful solution was a work around using Renderer class. Provide functionalities dedicated for scroll events that works with the majority of web browsers.

Beyond that, I'm not sure what else we could provide in the core library. We generally feel like this kind of thing is better left to 3rd party open-source libraries to handle, as we are unlikely to cover every single use case one might want.

Again, I don't know what you mean by "natively" - angular already supports "native" scroll events, like it natively supports every other browser event like click or keypress. This should not be supported in Angular itself - not all applications require hooking into the scroll event, and it is not difficult to create a custom mechanism that listens for the appropriate events.

BigFax what do you mean with "supported directly"? I need to do :. Is there a specifc list of DOM event supported by Angular? BigFax click listens only to click events of the element where you added it.

No, i wanted to use scroll on my element and not on window, but my test was not good the scrollbar was not on the element i was thinking. Sorry and thank you. HammerJs events are obviously from a third party; there's no reason for them to be supported out of the box in Angular.

However, as other's have said, it's the case with scroll as well as touch events e. For the same reason, it would be expected for event data to come with the applicable cross-browser inconsistencies because it's not Angular's concern to fix the browsers but rather to provide the tooling to more easily author and implement these solutions.

Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. New issue. Jump to bottom. Add scroll events to Angular. Labels comp: core type: feature. Milestone Backlog. Copy link Quote reply.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. While scrolling down I've two types of methods. This only works for scrolling in one direction, However this should get you started.

You can make scan smarter so it subtracts if you need to go up, and instead use a function inside takeWhile that figures out the correct termination condition based on if going up or down. Ref: developer. The bryan60 answer works, but I was not comfortable with it, and I preferred to use TimerObservable which seems less confusing for other teammates and also easier to customize for future uses. I suggest you have a shared service for times you're touching DOM, or working with scroll and other HTML element related issues; Then you can have this method on that service otherwise having it on a component does not make any problem.

Learn more. Angular 4 - Scroll Animation Ask Question. Asked 2 years, 9 months ago. Active 9 months ago. Viewed 27k times. How to add a scrolling animation effects? And how to use HostListener to scroll to next div? Sumit Ridhal Sumit Ridhal 1, 3 3 gold badges 8 8 silver badges 26 26 bronze badges.

ObaidulHaque HostListener is working properly. Not sure how to add animation. Good guide here: css-tricks. Active Oldest Votes. This one is fun.

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The solution, as with most things angular 2, is observables. This can be fixed or make it dynamic depending on the distance to scroll.Angular Bootstrap smooth scroll is an animated movement from a trigger - button, link or any other clickable element - to another place on the same page.

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Nihil tattooed accusamus, cred irony biodiesel keffiyeh artisan ullamco consequat. Streaming now live. Join now, and don't miss the livestream. In this section you will find informations about required modules and available inputs, outputs, methods and events of Smooth Scroll. In order to speed up your application, you can choose to import only the modules you actually need, instead of importing the entire MDB Angular library. Remember that importing the entire library, and immediately afterwards a specific module, is bad practice, and can cause application errors.

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Your name. Your email. Your message. Go Pro. Public Private.Animations add a lot of interaction between the html elements. Animation was also available with Angular2. The BrowserAnimationsModule needs to be added to the import array in app.

For the main div, we have added a button and a div with an image. There is a click event for which the animate function is called.

angular 4 scroll animation

And for the div, the myanimation directive is added and given the value as state. Trigger defines the start of the animation. The first param to it is the name of the animation to be given to the html tag to which the animation needs to be applied. The second param are the functions we have imported - state, transition, etc. The state function involves the animation steps, which the element will transition between. Right now we have defined two states, smaller and larger. For smaller state, we have given the style transform:translateY px and transform:translateY px.

Transition function adds animation to the html element. The first argument takes the states, i. The animate function allows you to define the length, delay, and easing of a transition. There is a style property added in the component directive, which centrally aligns the div. For the div, we have given the animation name defined in the app. On the click of a button it calls the animate function, which is defined in the app.

The state variable is defined and is given the default value as smaller. The animate function changes the state on click.Applications should not be filled with animations, but some animations can make the application easier to understand. To make your applications ready for animations, you must include the AngularJS Animate library:.

Then you must refer to the ngAnimate module in your application:. Or if your application has a name, add ngAnimate as a dependency in your application module:. The ngAnimate module does not animate your HTML elements, but when ngAnimate notice certain events, like hide or show of an HTML element, the element gets some pre-defined classes which can be used to make animations. The ng-show and ng-hide directives adds or removes a ng-hide class value.

The other directives adds a ng-enter class value when they enter the DOM, and a ng-leave attribute when they are removed from the DOM. The ng-repeat directive also adds a ng-move class value when the HTML element changes position. In addition, during the animation, the HTML element will have a set of class values, which will be removed when the animation has finished. Example: the ng-hide directive will add these class values:.

This tutorial will show you both. CSS transitions allows you to change CSS property values smoothly, from one value to another, over a given duration:.

angular 4 scroll animation

When the DIV element gets the. If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:. Example: When the DIV element gets the. HOW TO.

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All Rights Reserved. Powered by W3.Animations add a lot of interaction between the html elements. The BrowserAnimationsModule needs to be added to the import array in app. For the main div, we have added a button and a div with an image. There is a click event for which the animate function is called. And for the div, the myanimation directive is added and given the value as state.

Trigger defines the start of the animation.

angular 4 scroll animation

The first param to it is the name of the animation to be given to the html tag to which the animation needs to be applied. The second param are the functions we have imported - state, transition, etc.

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The state function involves the animation steps, which the element will transition between. Right now we have defined two states, smaller and larger. For smaller state, we have given the style transform:translateY px and transform:translateY px. Transition function adds animation to the html element. The first argument takes the start and end states, the second argument accepts the animate function.

The animate function allows you to define the length, delay, and ease of a transition. There is a style property added in the component directive, which centrally aligns the div.

For the div, we have given the animation name defined in the app. On the click of a button it calls the animate function, which is defined in the app.

Angular animations - Bootstrap 4 & Material Design

The state variable is defined and is given the default value as smaller. The animate function changes the state on click.

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If the state is larger, it will convert to smaller; and if smaller, it will convert to larger. The transform function is applied in the y direction, which is changed from 0 to px when we click the Click Me button. Angular7 - Animations Advertisements.Everyone has seen scroll based animations right? You know, the ones where you start scrolling down the webpage and animations start triggering around depending on how much you have scrolled.

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One of my favorite examples is Let's free Congress. Now, sometimes we want to trigger an animation, but we don't want to make the entire page to rely on the scroll However, we can't trigger the animation until the user is viewing the part we want to animate, or else the animation will do all its magic without no audience.

How do we do it? This directive was used to craft the following animation. Pretty much, when you scroll down through the page, the slider starts going up until we reach the limit, and the animation only triggers when the user is currently viewing the element to animate. First, we are going to see how we can use this directive in your project and then we are going to break it in little pieces to understand how it works.

In the element you want to perform an animation, add the directive. This tells AngularJS that when the user starts to scrolls within the area of this DOM element, it will trigger the scroll-animation function. In your controller, you should have something like this. The directive sends to your controller function the direction of the scroll, so you can even perform animations based on this.

Sometimes, you need to trigger the animation only once, so you need to return true in order to do so. An example from the same page:. In this one, we have an animation that only needs to be triggered once. This directive is good when you need to perform many animations that are triggered through a specific amount of time. It's also effective when you want a specific behavior that relies on the user position, or even changing CSS3 values as you scroll.

I made a Codepen to show off this, which also works in a horizontal scroll.

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Basically I'm moving and rotating the ball on each scroll, depending on which direction the user goes. Be warned though, that if the user has a kick as screen that allows him to see all your content without scroll, he might not be able to see the show. As a final note, I'm using indexOf which it's not IE friendly, but can be easily replaced with a simple for. The directive performs the function every time the user scrolls. Since the user can scroll all the way down in the case of the ball, all the way to the left in a single scroll, then the directive performs this only once.

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The same way, if the user scrolls it reeeallly slow, the function is performed many, many times.


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