I'm looking to dynamically change the style of my HTML element based on screen size, similar to this example:
<p [ngStyle]="{'color': isMobile() ? 'red' : 'blue'}">Lorem Ipsum</p>
The code above triggers a method in my component.ts.
isMobile() {
return window.innerWidth < 640;
}
However, it seems like this function only executes when I click somewhere on the window, not while resizing. How can I make it update instantly as the window size changes?
To implement responsive design, you can utilize media queries in Sass:
.color-size {
color: blue;
@media screen and (max-width: 640px) {
color: red;
}
}
Alternatively, you can achieve the same effect using pure CSS:
.color-size {
color: blue;
}
@media screen and (max-width: 640px) {
.color-size {
color: red;
}
}
If you prefer handling it through events in TypeScript:
isMobile: boolean;
@HostListener('window:resize', ['$event'])
onResize(event) {
if (event.target.innerWidth < 640) {
this.isMobile = true;
} else {
this.isMobile = false;
}
}
The corresponding template code would be:
<p (window:resize)="onResize($event)" [ngStyle]="{ color: isMobile ? 'red' : 'blue' }">Lorem Ipsum</p>
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