Flutter: How to control a PageView by GetxController? - flutter

Question

Subject: PageView and GetX
I'm having trouble detaching the controls on a PageView widget from the HomeView module. I have a GlobalController with its respective GlobalBinding that are instantiated when opening the HomeView. I would like to take the setPage(int page) method to the GlobalController that would eventually make the HomeView's PageView change pages. I don't know how to get PageController from PageView to GlobalController in order to make it work. How should I proceed?

Answer 1

Something Like this?
am using pageview in onboarding
class Onboard{
final headTitle;
final secondarytitle;
final discription;
final pngimage;
Onboardslist(this.headTitle, this.secondarytitle, this.discription, this.pngimage);
}
then for the controller
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",
"short description",
"long description",
imageString),
Onboardslist("title",
"short description",
"long description",
imageString),
Onboardslist("title",
"short description",
"long description",
imageString)
];
}
then for the view i did was simply like this
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,
mainAxisAlignment: MainAxisAlignment.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
),
),
),
SizedBox(height: 15,),
Padding(
padding: const EdgeInsets.only(left: 40,right: 40),
child: Text(yourController.onBoardPages[index].discription,
style: TextStyle(
color: not_sopure_black,
fontSize: getHeight(15),
fontFamily: 'Metropolis-Regular' ,
),
),
),
],
),
),
SizedBox(height: 15,),
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,
),
),
],
),
),
),
),
)
],
),
),
),
),
),
);
}
}