FLutter Swiper plug-in pit trip ScrollController not attached to any scroll views error

1. flutter_swiper must be wrapped in container

Container(
      child:
         AspectRatio(
           aspectRatio: 20/9,
           child: Swiper(
             key: UniqueKey(),
             itemBuilder: (BuildContext context, int index) {
               return new Image.network(
                 _Swiperlist[index]["path"].length>0?_Swiperlist[index]["path"]:"https://kt-1301681474.cos.ap-shanghai.myqcloud.com/app/rot/lbt_20200425181036.png",
                 fit: BoxFit.fill,
               );
             },
             itemCount: _Swiperlist.length,
             viewportFraction: 0.8,
             scale: 0.9,
           ),
         )
     )

2. Avoid distortion of the size of the carousel image on each device

AspectRatio(aspectRatio: 20/9)

3. A series of errors caused by obtaining the carousel image in the interface

Flutter Swiper is a carousel component that contains a Widget List inside. When the number of the Widget List changes, if an abnormal situation like this occurs, causing the carousel not to slide or other errors such as red screens,

ScrollController not attached to any scroll views.

Solution

It can be solved by adding a LocalKey to Swiper. I added a UniqueKey here, which belongs to a LocalKey

AspectRatio(
    aspectRatio: 20/9,
       child: Swiper(
         key: UniqueKey(),
         itemBuilder: (BuildContext context, int index) {
           return new Image.network(
             _Swiperlist[index]["path"].length>0?_Swiperlist[index]["path"]:"https://kt-1301681474.cos.ap-shanghai.myqcloud.com/app/rot/lbt_20200425181036.png",
             fit: BoxFit.fill,
           );
         },
         itemCount: _Swiperlist.length,
         viewportFraction: 0.8,
         scale: 0.9,
       ),
     )