My app in Ionic 4 but I can’t understand how to customize components.
And i want to display alignment position top right corner.
I have tried in global.css file as well as component.css file , but didn't any luck.
async getNotifications() {
const popover = await this.popoverController.create({
component: NotificationComponent,
// event: ev,
cssClass: 'notificationCSS',
translucent: true
});
return await popover.present();
}
In notificationCSS :
.notificationCSS{
top: 0px !important;
right: 0px !important;
}
Ref. Url
I had a similar problem in ionic for dynamically (maybe not exactly correct in angnular world) rendered html elements. My component css file didn't pick up the classes that I was targetting. However global.css did. I would try put your css in global again.
Related
Im trying to edit the mat-dialog-container but Im not able to, I tried with :host::ng-deep and also I look for answers of this and I found that I should be ablo to give it style by adding a class, but the style is not changin, here is the code about what I found
for the style.css file
.custom-dialog-container .mat-dialog-container {
overflow-y: hidden !important;
display: flex !important;
background-color: red;
}
For the ts componen
abrirForm(id:number){
const data = id??null
this.ventana.open(ModalInspeccionComponent,{data:data, disableClose:true,maxWidth: '100vw', panelClass: 'custom-dialog-container'}).afterClosed().subscribe(e =>{
if (e) {
console.log(e);
}
})
}
The dialog opens outside of the component, so styles in the component file will not be applied to it. Place your styles for .custom-dialog-container in your root css/scss file, and they should apply to the dialog then.
Here is a minimal example: https://stackblitz.com/edit/angular-ivy-ggzfwu?file=src/styles.css
We are adding custombuttons to our fullcalendar like below.
Is there a way to change the background and foreground color of the button?
And is there a way to set padding or margins to the custom buttons?
var calendar = new Calendar(calendarEl, {
customButtons: {
myCustomButton: {
text: 'custom!',
click: function() {
alert('clicked the custom button!');
}
}
},
headerToolbar: {
left: 'prev,next today myCustomButton',
center: 'title',
right: 'dayGridMonth,timeGridWeek,timeGridDay'
}
});
Yes, you can set any properties you like using CSS.
On inspecting how fullCalendar renders the buttons in HTML, I noticed it gives each one a class according to the property name of the button.
For example, if - per your sample code - you call the button myCustomButton then fullCalendar will give the rendered <button a CSS class called fc-myCustomButton-button. This means you can specify any rules you like for that class, e.g.:
.fc-myCustomButton-button
{
background-color: red !important;
}
(You need the !important so that fullCalendar's other CSS rules don't override it.)
Demo: https://codepen.io/ADyson82/pen/WNJqXLM
I use the Twemoji library to get emoji icons in my Next js App, they appear as <span><img></span> in the final HTML and I can override their default width and height using !important in my globals.scss file:
.customize { //Parent class containers 3 buttons, each one has an emoji element
top: 88%;
right: calc(50vw - (52.2px + 3rem));
button {
span img[style]{
width: 35px !important;
height: 35px !important;
}
}
}
Then I tried to extract it as a [].module.scss file, everything works but the images don't change size whatsoever. Why?
Edit
Here is the component I'm trying to style:
import ThemeButton from '../components/themeCustomizeButton' // a button that renders an emoji
import LanguageSwitcher from '../components/LanguageSwitch' // a button that renders an emoji
import Complex from '../components/ComplexitySwitch' // a button that renders an emoji
import styles from "../styles/local/components/customize.module.scss" // importing .module.scss
function Customizing() {
return(
<section className={styles.customize}>
<ThemeButton />
<LanguageSwitcher />
<Complex />
</section>
)
}
export default Customizing
Just use this code before wherever you are trying to extract
$(document).ready(function () {
// Set the size of the rendered Emojis
// This can be set to 16x16, 36x36, or 72x72
twemoji.size = '36x36';
});
When I dynamically change img's src attribute, old image is displayed while loading a new one.
I have a component which displays some data: text and image. On click the underlying data is changed (i.e. new data from server). Once click, text is changed immediately, but component displays old image while new one is loaded. When new image is loaded, then it is visually displayed which can take noticeable amount of time.
In real application one can have product details and changing products on button click. All data is replaced immediately but not image.
Problem exists when the component is not destroyed (reused).
I've already tried clear image src after click, but it not worked.
I have simple binding in template
img [src]="img.url" style="width: 300px; height: 300px">
<p>{{ img.text }}</p>
and image change on click
this.img = this.images[1];
You can see sample app here https://stackblitz.com/edit/angular-cojqnf
Is this possible to take more control of this image change process? It would be great to clear image on click and wait for new one with empty background for example.
I hacked around a little with your stackblitz demo, I basically wrapped your code in an ImageGhostDirective to make it reusable. The directive listens to any changes on the src attribute using a MutationObserver to change the style. Using a HostListener on the 'load' event, it reverts the styles back to normal. I start with an opacity of 0 for the first load, followed by an opacity of 0.2 between successive image changes, but this is completely arbitrary and could be replaced by a spinner or any kind of placeholder...
Here is the link to the stackblitz: https://stackblitz.com/edit/angular-image-ghost-directive
<img [src]="'https://loremflickr.com/300/300?random=' + index"
style="width: 300px; height: 300px" imgGhost>
#Directive({
selector: 'img[imgGhost]'
})
export class ImageGhostDirective implements OnDestroy {
private changes: MutationObserver;
constructor(private elementRef: ElementRef) {
this.changes = new MutationObserver((mutations: MutationRecord[]) =>
mutations.filter(m => m.attributeName === 'src').forEach(() => this.opacity = 0.2)
);
this.changes.observe(this.elementRef.nativeElement, {
attributes: true,
childList: false,
characterData: false
});
}
ngOnDestroy(): void {
this.changes.disconnect();
}
#HostBinding('style.display') display = 'block';
#HostBinding('style.opacity') opacity = 0;
#HostListener('load')
onLoad(): void {
this.opacity = 1;
}
}
It is also possible to tell Angular to automatically attach this directive to every img element by using the img:not([imgGhost]) selector in the directive decorator. That way, you don't have to manually place the directive on every image in your app.
Hope this is useful.
Finally I achieved what I want by leveraging (load) event on img and [ngStyle].
In template I added load handler and style:
<img [src]="img.url" style="width: 300px; height: 300px" (load)="loaded()"
[ngStyle]="{'display': imgVisible ? 'block' : 'none'}">
In back-end:
imgVisible = true;
and when changing data, also hide image:
this.imgVisible = false;
next, when image is loaded, show the image (be careful! when old and new images have the same URL, this event is not raised; if it is the case you need to conditionally hide image)
loaded(): void {
this.imgVisible = true;
}
Complete code for solution: https://stackblitz.com/edit/angular-ewptj7
I'm not a big fan of this kind solutions. It could be difficult to apply when you have more images.
All better solution are welcome.
I want to add a background image on Facebook's react.js my-app. I can do this by setting a background image to a div element. But my div only covers half of the page. Which is why my image is not fulling occupying the page.
Instead, I want to do this on a body element. But how to add a body element and set a background image to it?
I tried this, but its not working in App.js file of my-app
<body background="http://i.imgur.com/DaNQJ6I.jpg"></body>
[EDITED]
Css-tricks.com provides a quite cool solution of the full page images:
https://css-tricks.com/perfect-full-page-background-image/
I used this example for my React implementation with the useEffect (https://reactjs.org/docs/hooks-effect.html).
Note: background-size replaced by backgroundSize when the style is setted.
import React, { useEffect } from "react";
import img from "./test.jpg";
export default function App() {
useEffect(() => {
document.body.style.background = `url('${img}') no-repeat center center fixed`;
document.body.style.backgroundSize = "cover";
document.body.style.webkitBackgroundSize = "cover";
}, []);
return <div className="App"></div>;
}
Try using style:
<body style={ bodyStyle }></body>
And bodyStyle should look like:
var bodyStyle = { backgroundImage: 'url(http://i.imgur.com/DaNQJ6I.jpg)' };
For some reason, I cannot add a background image on app.js or app.css files of react framework. However, I tried to do it on index.html. This worked perfectly to me.
So, please add background images on index.html If you are unable to do it in app.js or app.css.
And also, future readers, If you have found a way to do it, feel free to answer the question, thanks!!
This works for me. The actual work is done in componentDidMount(). So technically, you could add this on about any component. Like, you could put it on a navbar or even in the layout.
For my projects, I created a component. Add it to your layout (or where ever) and it should work.
Good luck!
export default class BodyStyle extends Component {
componentDidMount() {
const { style } = this.props;
var body = document.getElementsByTagName( "body" )[ 0 ];
for ( var key in style ) {
body.style[ key ] = style[ key ];
}
}
render() {
return <span ref="BodyStyle"/>;
}
};