Pageview, builder

Pageview

final _controller = PageController(initialPage: 0);

PageView(
	controller: _controller,
    physics: const NeverScrollableScrollPhysics(),
    children: [
	    Text('1'),
    	Text('2'),
    	Text('3'),
    	Text('4'),
    ],
),

IconButton(
	onPressed: () {
			_controller.previousPage(
				duration: Duration(milliseconds: 100),
				curve: Curves.easeInOut,
			);
	},
    icon: const Icon(
    	Icons.arrow_back,
    	size: 50,
    ),
),

Pageview Builder

final _controller = PageController(initialPage: 0);
List<int> data = [11, 22, 33, 44, 55, 66];

PageView(
	controller: _controller,
    itemCount: data.length,
    itemBuilder: (context, index) {
    	return Text("${data[index]}");
    }
),

IconButton(
	onPressed: () {
			_controller.previousPage(
				duration: Duration(milliseconds: 100),
				curve: Curves.easeInOut,
			);
	},
    icon: const Icon(
    	Icons.arrow_back,
    	size: 50,
    ),
),

IconButton(
	onPressed: () {
			_controller.animateToPage(
	            _controller.page!.toInt() + 1,
				duration: Duration(milliseconds: 100),
				curve: Curves.easeInOut,
			);
	},
    icon: const Icon(
    	Icons.arrow_forward,
    	size: 50,
    ),
),