Flutter：如何通过 GetxController 控制 PageView？

如何解决Flutter：如何通过 GetxController 控制 PageView？

主题：PageView 和 GetX

我无法从 PageView widget 模块分离 HomeView 上的控件。我有一个 GlobalController 及其各自的 GlobalBinding，它们在打开 HomeView 时被实例化。我想将 setPage(int page) 方法带到最终使 HomeView 的 GlobalController 更改页面的 PageView 中。我不知道如何让 PageController 从 PageView 到 GlobalController 以使其工作。我应该如何进行？

解决方法

像这样的东西？ 我在入职时使用综合浏览量

class Onboard{


 final headTitle;
  final secondarytitle;
  final discription;
  final pngimage;
 Onboardslist(this.headTitle,this.secondarytitle,this.discription,this.pngimage);

}

然后用于控制器

class OnboardController extends GetxController{


  var selectedPagexNumber = 0.obs;
bool get isLastPage => selectedPagexNumber.value == onBoardPages.length -1;
var pageControll = PageController();


   forwardAct()
  {
    if(isLastPage) Get.offNamedUntil(signin,(route)=> false);

    else pageControll.nextPage(duration: 300.milliseconds,curve: Curves.ease);
  }

  List<Onboardslist> onBoardPages = 
  [
    Onboardslist("title","short description","long description",imageString),Onboardslist("title",imageString)
  ];

}

然后对于我所做的视图就是这样

class Onboarding extends StatelessWidget {

   final yourController= OnboardController();

  @override
  Widget build(BuildContext context) {
    SizeXGet().init(context);
     return Scaffold(
       backgroundColor: decent_white,appBar: AppBarCustom(
        title: 'Skip',button: ()=>Get.offNamedUntil(signin,(route)=>false),),body: WillPopScope(
        onWillPop: () async => false,child: SafeArea(
            child: Stack(
              children: [
                PageView.builder(
                  controller: yourController.pageControll,onPageChanged: yourController.selectedPagexNumber,itemCount: yourController.onBoardPages.length,itemBuilder: (context,index)
                  =>Padding(
                    padding: const EdgeInsets.only(left: 10,right: 10),child: Container(
                      child:  SingleChildScrollView(
                          physics: BouncingScrollPhysics(),child: Column(
                            crossAxisAlignment: CrossAxisAlignment.center,mainAxisAlignment: MainAxisAlignment.center,children: [
                            Container(
                              height: getHeight(150),child: Column(
                                crossAxisAlignment: CrossAxisAlignment.center,children: [
                                     Padding(
                       padding: const EdgeInsets.only(left: 20,right: 20),child: Text(yourController.onBoardPages[index].headTitle,style: TextStyle(
                       color: darkish_color,fontSize: getHeight(20),fontFamily: 'Metropolis-SemiBold',fontWeight: FontWeight.bold
                       ),SizedBox(height: 15,Padding(
                     padding: const EdgeInsets.only(left: 50,right: 50),child: Text(yourController.onBoardPages[index].secondarytitle,style: TextStyle(
                                  color: not_sopure_black,fontSize: getHeight(26),fontFamily: 'Metropolis-Bold',fontWeight: FontWeight.bold
                                ),Padding(
                               padding: const EdgeInsets.only(left: 40,right: 40),child: Text(yourController.onBoardPages[index].discription,fontSize: getHeight(15),fontFamily: 'Metropolis-Regular',],Image.asset(yourController.onBoardPages[index].pngimage),bottomNavigationBar: BottomAppBar(
        color: Colors.transparent,elevation: 0,child: Container(
          height: 75,width: MediaQuery.of(context).size.width,child:  Padding(
        padding: const EdgeInsets.only(left: 25,right:25,child: Container(
          width: MediaQuery.of(context).size.width,child: Stack(
            children: [
                  Align(
                    alignment: Alignment.centerLeft,child: Container(
                      child: Row(
                        children: List.generate(yourController.onBoardPages.length,(index)=>Obx(()=>
                        AnimatedContainer(
                          duration: Duration(milliseconds: 200),margin: EdgeInsets.only(right: 5),height: 10,width: yourController.selectedPagexNumber.value == index ? 20 : 10,decoration: BoxDecoration(
                              borderRadius: BorderRadius.circular(60),color: yourController.selectedPagexNumber.value == index
                              ? darkish_color
                              : not_sopure_black,)),Align(
                  alignment: Alignment.centerRight,child: Container(
                    width: 130,height: 52,child: RaisedButton(
                      elevation: 0,onPressed: yourController.forwardAct,splashColor: not_sopure_black,color: darkish_color,shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(100)
                      ),child: Obx(() =>
                      Row(
                        mainAxisAlignment: MainAxisAlignment.center,children: [
                          Text(yourController.isLastPage ? 'Next' : 'Next',style: TextStyle(
                            color: Colors.white,fontFamily: 'Metropolis-Semibold',fontSize: 16,)
            ],);
  }
}