EventListener | small library and it is used for communication | Android library
kandi X-RAY | EventListener Summary
kandi X-RAY | EventListener Summary
EventListener is small library and is used for communication between classes like broadcaste signals No Need to maintain listener reference. It auto work with app lifecycle.
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Top functions reviewed by kandi - BETA
- On create view
- Post a new data bean
- Add all listeners
- Get the default singleton instance
- Sets test test
- Show toast
- Returns test value
- Gets the object
- Gets the tag
- Override this method to create a new instance
- Returns a new blank fragment instance
- Unregister listener
- Unregisters an update listener
- Region resume
- Registers an update event listener
- On create
EventListener Key Features
EventListener Examples and Code Snippets
Community Discussions
Trending Discussions on EventListener
QUESTION
I'm trying to implement an executorService to delete a huge Firebase node in background. This node gets a new record every ten seconds to feed a realtime linear graphic (259Krecords/month). The users need a function to clean the data from time to timen and they need to trigger it manually on demand.
I've coded the method below:
...ANSWER
Answered 2021-Jun-14 at 19:54I think I've found the problem. It happens that when I'm executing the "removeValue()" on firebase, it triggers it asynchronously. So, the for Loop is finished quite quickly giving me the LogCat above. I have added an OnSuccessListener to the remove command and am increasing the progress in there. Also, I've added a control variable in order to know when the processing is finished and thus close the progressbar. The end code, is like that:
QUESTION
I'm fetching data from an API that is paginated server-side. I have limited the number of results to 5 (rows=5). For the first set of data, a global variable pageNumber has been declared to 1, and eventListeners for the Previous/Next buttons have been added. Now I don't know how to get the next set of results. They can be fetched by changing the pageNumber to 2 but I don't know how to access the URL from const endpoint where I would change the pageNumber parameters to get previous and/or next results. Any idea how to do that?
...ANSWER
Answered 2021-Jun-14 at 13:51// First set of fetched data starts with page 1
let pageNumber = 1;
let term = '';
// 1. Define endpoint, fetch response and return data promise
const search = async () => {
const key = 'aroplosuitin';
const endpoint = `https://api.europeana.eu/record/v2/search.json`,
query = `?wskey=${key}&query=${term}&start=${pageNumber}&rows=5&profile=rich'`;
const response = await fetch(endpoint + query);
// Check response status:
if (response.status !== 200) {
throw new Error('Cannot fetch data. Response status is not 200.');
}
const data = await response.json();
return data;
};
// 2. Call search and return data promise
const searchEuropeana = async () => {
const data = await search();
return data;
};
// 3. Grab the input and invoke callback to update the UI
const searchForm = document.querySelector('#search-form');
searchForm.addEventListener('submit', (e) => {
e.preventDefault();
// grab user input
term = searchForm.search.value.trim();
// reset form on submit
searchForm.reset();
// For errors
const errorOutput = document.querySelector('.error');
// Invoke searchEuropeana
searchEuropeana()
.then((data) => {
updateUI(data);
console.log(data);
})
.catch((error) => {
console.log('An error occured:', error),
(errorOutput.innerText = 'Check your spelling or network.');
});
});
// 4. Update the UI with HTML template
const updateUI = (data) => {
console.log(data);
};
// 5. Previous / Next results
const previousBtn = document.querySelector('#previousBtn'),
nextBtn = document.querySelector('#nextBtn');
previousBtn.addEventListener('click', () => {
if (pageNumber > 1) {
pageNumber--;
} else {
return;
}
console.log(pageNumber);
searchEuropeana();
});
nextBtn.addEventListener('click', () => {
pageNumber++;
console.log(pageNumber);
searchEuropeana();
});
QUESTION
I'm struggling with removeEventListener in an object literal.
I have an object which deals with adding and removing custom outlines when the user is tabbing through a website.
ANSWER
Answered 2021-Jun-13 at 17:20As mentioned by @Mike 'Pomax' Kamermans in the comments, every time you say () => aFunction(), you're creating a completely new function. Just pass in the raw function like aFunction.
It also appears that you're not passing the event variable correctly, I've fixed that too in the codeblock below.
QUESTION
I'm using the following to animate the route being drawn in React Leaflet, which works nicely. However I'd like to use onAnimationEnd for the CSS. I can't figure out where to find the element and attach the eventListener.
ANSWER
Answered 2021-Jun-11 at 21:08You've set this up very nicely. Your RoutingMachine component is well written, and you already have your ref to it. Great. Let's examine RoutingMachineRef in the console:
As you can see, if you dig through, the svg path component can be found at RoutingMachineRef.current._line._layers[some_layer_id]._path. But watch out because sometimes leaflet routing machine will draw multiple layers (separate svg layers for rounded line caps, etc). You can actually access these dom elements directly through the RoutingMachineRef.
I'm not sure which one of these gets the .animate css class in your code, but you can probably just add your event listener to each of these. I imagine only one of them is going to actually animate (potentially a problematic assumption there), so the event listener will only fire once, when the one that has the .animate class stops animating:
QUESTION
I am currently working on a web application and I have a file input field where the user can upload images. I´d like to make sure that really just images get uploaded via javascript. Anyhow I can´t get the eventlistener to work... You can find the relevant Code snippets underneath:
...ANSWER
Answered 2021-Jun-12 at 23:14You forgot () in the function declaration of test, and there were a couple of document.getElementById's for non-existent html elements with non-existent functions.
See below, it works perfectly fine.
QUESTION
The fetch api in addEventListener(click) only works once.
HTML code:
...ANSWER
Answered 2021-Jun-11 at 05:28Fetch is asynchronous, so it might be still running while the for loop is also running. You can turn the for loop into a while function.
QUESTION
I have a bootstrap modal that has some custom events, like hidden.bs.modal, depending on where the user does, I want the function in this event to be replaced, maybe it's better to understand with a simple example, consider:
...ANSWER
Answered 2021-Jun-10 at 11:46The problem you have is when you bind the event, you are referencing that function. When you replace it does not update the reference to that function. You can clearly see that this will not work with the example
QUESTION
Size
Type
Coffe
Extras
Quantity
Select Size
Large
Medium
Small
Espresso
Cappuccino
Americano
Pour over
Chemex
ANSWER
Answered 2021-Jun-10 at 08:03You can use change event listener, with disabled attribute for .size, in order to disable the .size select. Also, you need to provide value attribute, for each .
QUESTION
I´m using multiple external JavaScript-Files for the client- /frontend-Design of my Nuxt Application ( Nuxt Universal Mode, server-side rendering + client-side navigation ), putting them in the nuxt.config.js-file.
...ANSWER
Answered 2021-Jun-08 at 08:23To re-run external JavaScript (i.e. jQuery) when navigating to another page using NuxtLink with Nuxt setted up to Universal Mode, two lifecycle hooks are to be used.
First, middleware should remove the scripts from head. Be sure, that only client will remove the scripts. On initial pageload, middleware is server based and scripts run, even without triggering them.
QUESTION
I am trying to use a-frame in my existing angular application. Everything works well and i can use the a-scene within my angular component.html. However i want to register 'click' events on an a-frame component and call an existing function on my angular component.ts file
component.html
...ANSWER
Answered 2021-Jun-06 at 18:27Maybe I'm missing something.. but why not just use the native click handler on a-cylinder?
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install EventListener
You can use EventListener like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the EventListener component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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