定义图片定时播放

@State showSwiper: boolean = false;
private timer = null;

 setTimeout(() => {//三秒后播放图片
    this.showSwiper = true;
    this.startTiming();
  }, Const.SPLASH_DURATION);
​
}
​
startTiming() {//播放五秒图片
  this.timer = setInterval(() => {
    this.countdown--;
    if (this.countdown === 0) {
      this.clearTiming();
      //五秒后跳转到首页
      this.jumpToMainPage();
    }
  }, Const.DURATION);
}
​
clearTiming() {//清理定时器
  if (this.timer !== null) {
    clearInterval(this.timer);
    this.timer = null;
  }
}
​
jumpToMainPage() {//跳转到应用首页
  this.clearTiming();
  router.replaceUrl({
    url: 'pages/MainPage'
  });
}
​
aboutToDisappear() {//页面销毁时清理定时器
  this.clearTiming();
}

定时器形式

xxx(()=>{

xxx

},设定时间)