swiper根据图片切换不同的背景色

swiper根据图片切换不同的背景色

var mySwiper = new Swiper('.swiper-container', {
    autoplay: true, //可选选项，自动滑动
    loop: true,
    paginationClickable: true,
    navigation: {
        nextEl: ' .swiper-button-next ',
        prevEl: ' .swiper-button-prev ',
    },
    autoplay: {
        delay: 3000,
    },
    pagination: {
        el: ' .swiper-pagination ',

    },
    on: {
        slideChangeTransitionStart() {
            $(".m-slide-container").css("background", $('#banner-image' + this.realIndex).attr("data-bg_color"))
        }
    }

});

<div class="m-slide-container">
            <div class="swiper-container" style="text-align: center;">
                <div class="swiper-wrapper">
                    @if(!empty($data["banners"]))
                        @foreach($data['banners'] as $banner)
                            <div class="swiper-slide">
                                <a href="{
   
   {$banner['url']}}" target="_blank">
                                    <img class="banner-img" id="banner-image{
   
   {$loop->index}}" data-bg_color="{
   
   {$banner["bg_color"]}}" class="banner-img"
                                         src="{
   
   {!empty($banner['thumb_url']) ? asset('attachment/'. $banner['thumb_url']): asset('home/images/banner01.jpg')}}"
                                         alt="{
   
   {$banner['title']}}">
                                </a>
                            </div>
                        @endforeach
                    @endif
                </div>
                <div class="swiper-button-prev swiper_btn swiper-button-white" style="margin-left: 10px;opacity:0.3;">
                </div>
                <div class="swiper-button-next swiper_btn swiper-button-white" style="margin-right: 10px;opacity:0.3;">
                </div>
            </div>
        </div>