下面是一个使用Angular Material进度条进行不一致的倒计时的解决方法的代码示例:
ng add @angular/material
import { Component, OnInit } from '@angular/core';
import { interval, Subscription } from 'rxjs';
import { takeWhile } from 'rxjs/operators';
@Component({
selector: 'app-countdown',
templateUrl: './countdown.component.html',
styleUrls: ['./countdown.component.css']
})
export class CountdownComponent implements OnInit {
progress: number = 100;
interval: number = 1000; // 每秒更新一次进度条
count: number = 10; // 倒计时秒数
subscription: Subscription;
ngOnInit() {
this.startCountdown();
}
startCountdown() {
this.subscription = interval(this.interval)
.pipe(takeWhile(() => this.progress > 0))
.subscribe(() => {
this.progress -= 100 / this.count;
});
}
stopCountdown() {
this.subscription.unsubscribe();
}
}
来显示倒计时组件。这样,当你启动应用程序时,你将看到一个进度条以每秒减少一次的速度倒计时。当进度条的值达到0时,倒计时结束,进度条也将达到100%。