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 学着写一下滑动页面

 pageview实现左右滑动视图

class SlidingContainer extends StatefulWidget {const SlidingContainer({super.key});@overrideState<SlidingContainer> createState() => _SlidingContainerState();
}class _SlidingContainerState extends State<SlidingContainer> {late PageController pageController;double pageOffset = 0;@overridevoid initState() {// TODO: implement initStatesuper.initState();pageController = PageController(viewportFraction: 0.84);pageController.addListener(() {setState(() => pageOffset = pageController.page!);});}@overridevoid dispose() {// TODO: implement disposesuper.dispose();}Widget build(BuildContext context) {return SizedBox(height: MediaQuery.of(context).size.height * 0.55,child: PageView(controller: pageController,children: List.generate(movies.length, (index) {return SlidingCard(offset: pageOffset - index,movie: movies[index],);}),),);}
}

运用Card来绘制图层,简单又方便

class SlidingCard extends StatelessWidget {final double offset;final Movie movie;const SlidingCard({super.key, required this.offset, required this.movie});@overrideWidget build(BuildContext context) {double gauss = math.exp(-(math.pow((offset.abs() - 0.5), 2) / 0.08));return Transform.translate(offset: Offset(-32 * gauss * offset.sign, 0),child: Card(margin: EdgeInsets.only(left: 8, right: 8, bottom: 8),elevation: 8,shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(32),),child: Column(children: <Widget>[ClipRRect(borderRadius: BorderRadius.vertical(top: Radius.circular(32),),child: Image.asset('${movie.pic}',// height: MediaQuery.of(context).size.height * 0.3,alignment: Alignment(-offset.abs(), 0),fit: BoxFit.cover,),),SizedBox(height: 8,),Expanded(child: Padding(padding: const EdgeInsets.all(8.0),child: Column(crossAxisAlignment: CrossAxisAlignment.start,children: <Widget>[Text('${movie.name}',style:TextStyle(fontSize: 20, fontWeight: FontWeight.bold),),SizedBox(height: 10,),Text('上架时间: ${movie.date}',style: TextStyle(fontSize: 14, fontWeight: FontWeight.normal),),Text('${movie.intor}',style: TextStyle(fontSize: 14,fontWeight: FontWeight.normal,),),Spacer(),Row(children: <Widget>[SizedBox(width: 16,),Text('${movie.price}',style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),),Spacer(),MaterialButton(onPressed: () {},color: Colors.black,child: Text('购买'),textColor: Colors.white,shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(32),),),SizedBox(width: 16,),],),],),),),],),),);}
}class $ {}