一、功能点:
实现列表“字幕式”滚动效果;
字幕循环滚动,滚完数据之后会继续从头开始滚动
实现鼠标移入,字幕停止滚动;鼠标移出,字幕继续滚动;
实现滚轮在指定区域内滚动,能够控制控制字幕上下滚动
二、代码:
<template><div class="subtitle-container"ref="container"@mouseenter="stopScrolling"@mouseleave="startScrollingOnLeave"@wheel="handleScroll"><ul class="subtitle-list":style="{ transform: `translateY(-${currentScrollTop}px)` }"><li v-for="(subtitle, index) in subtitles":key="index"class="subtitle">{{ subtitle }}</li></ul></div>
</template><script>
export default {data () {return {subtitles: ['在岁月的流逝中,花开花落,却留下了永恒的思念。', '晨曦之光,穿透黑夜的深邃,唤醒沉睡的希望。', '微风轻拂,草木低语,岁月静好,心安如初。', '星空如梦,岁月如歌,心中的孤舟在悠远的彼岸徘徊。', '晨曦之光,穿透黑夜的深邃,唤醒沉睡的希望。', '微风轻拂,草木低语,岁月静好,心安如初。', '情深意浓,宛如一汪清泉,润泽心灵的枯渴。', '山水之间,一念之差,心的旅程,或是波澜壮阔,或是静谧悠长。', '浮生若梦,红尘漫漫,唯有心中的那一抹云彩,永不散去。', '星光璀璨,照亮前行的路途,让希望之花绽放在黑暗中。', '海浪拍岸,千年的沧桑,铭刻着岁月的印记,留下无尽的思绪。', '暮色渐浓,烛光摇曳,思念的火焰在心中燃烧,驱散寂寞的阴霾。'], // 假设这里是你的字幕数据scrollSpeed: 50, // 滚动速度,单位为毫秒scrollInterval: null, // 滚动间隔的引用containerHeight: 0, // 容器高度subtitleHeight: 0, // 单个字幕的高度currentScrollTop: 0, // 当前滚动的位置isHovering: false // 标记鼠标是否悬停在容器上};},mounted () {this.containerHeight = this.$refs.container.offsetHeight;this.subtitleHeight = this.$refs.container.querySelector('.subtitle').offsetHeight;this.startScrolling();},methods: {startScrolling () {if (!this.isHovering) {this.scrollInterval = setInterval(() => {this.currentScrollTop += 1;if (this.currentScrollTop >= this.subtitleHeight) {this.currentScrollTop = 0;this.subtitles.push(this.subtitles.shift());}}, this.scrollSpeed);}},stopScrolling () {clearInterval(this.scrollInterval);this.isHovering = true;},startScrollingOnLeave () {if (this.isHovering) {this.isHovering = false;this.startScrolling();}},handleScroll (event) {this.currentScrollTop += event.deltaY;if (this.currentScrollTop < 0) {this.currentScrollTop = 0;} else if (this.currentScrollTop > (this.subtitles.length * this.subtitleHeight - this.containerHeight)) {this.currentScrollTop = this.subtitles.length * this.subtitleHeight - this.containerHeight;}}},beforeDestroy () {clearInterval(this.scrollInterval); // 在组件销毁前清除滚动间隔}
};
</script><style>
.subtitle-container {text-align: center;margin: 0 auto;margin-top: 30px;overflow: hidden;
}.subtitle-list {padding: 0;margin: 0;list-style-type: none;
}.subtitle {line-height: 30px; /* 调整为适当的行高 */
}
</style>