颤动背景图像转盘

Question

我是flutter的新手，正在开发我的flutter编码技能。我想在旋转木马中显示3个背景图像，而屏幕上的其他文本和按钮保持不变。在下面的代码中，图像转盘工作正常，但我的"开始"按钮和其他文本根本没有显示我该怎么做才能纠正这个问题。感谢你在这方面的帮助。

import 'package:carousel_slider/carousel_slider.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
class Test extends StatelessWidget {
@override
Widget build(BuildContext context) {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.leanBack);
return Scaffold(
body: ListView(
children: [
CarouselSlider(
items: [
//1st Image of Slider
Container(
color: Colors.black,
child: Stack(
children: [
Positioned.fill(
child: Opacity(
opacity: 0.8,
child: Image.asset('assets/images/person1.png',
fit: BoxFit.cover),
),
),
Container(
color: Color.fromRGBO(5, 65, 196, 0.19),
),
],
),
),
//2nd Image of Slider
Container(
color: Colors.black,
child: Stack(
children: [
Positioned.fill(
child: Opacity(
opacity: 0.8,
child: Image.asset('assets/images/person2.png',
fit: BoxFit.cover),
),
),
Container(
color: Color.fromRGBO(5, 65, 196, 0.19),
),
],
),
),
//3rd Image of Slider
Container(
color: Colors.black,
child: Stack(
children: [
Positioned.fill(
child: Opacity(
opacity: 0.8,
child: Image.asset('assets/images/person3.png',
fit: BoxFit.cover),
),
),
Container(
color: Color.fromRGBO(5, 65, 196, 0.19),
),
],
),
),
],
//Slider Container properties
options: CarouselOptions(
height: 810.0,
enlargeCenterPage: true,
autoPlay: true,
aspectRatio: 16 / 16,
autoPlayCurve: Curves.fastOutSlowIn,
enableInfiniteScroll: true,
autoPlayAnimationDuration: Duration(milliseconds: 800),
viewportFraction: 1,
),
),

Padding(
padding: const EdgeInsets.only(left: 40, bottom: 230),
child: Align(
alignment: Alignment.bottomLeft,
child: Text('Meet nYour DoctornHere',
style: TextStyle(
height: 1.2,
fontFamily: 'Dubai',
fontSize: 35,
color: Color(0xffFAFAFA),
fontWeight: FontWeight.w500,
))),
),

Padding(
padding: const EdgeInsets.only(left: 30, top: 26),
child: Align(
alignment: Alignment.topLeft,
child: Text('DOCTOR',
style: TextStyle(
fontFamily: 'Dubai',
fontSize: 30,
color: Colors.white,
fontWeight: FontWeight.w500,
))),
),
Padding(
padding: const EdgeInsets.only(bottom: 60),
child: Align(
alignment: Alignment.bottomCenter,
child: SizedBox(
width: 320,
height: 65,
child: ElevatedButton(
onPressed: () {},
child: Text(
'Get Started',
style: TextStyle(
color: Colors.white,
fontSize: 25,
fontWeight: FontWeight.normal),
),
style: ButtonStyle(
backgroundColor:
MaterialStateProperty.all<Color>(
Color(0xff05ABA3)),
shape: MaterialStateProperty.all<
RoundedRectangleBorder>(
RoundedRectangleBorder(
borderRadius:
BorderRadius.circular(50.0),
),
))),
)),
),
Padding(
padding: const EdgeInsets.only(bottom: 20),
child: Align(
alignment: Alignment.bottomCenter,
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(5.0),
color: Colors.white,
),
height: 5,
width: 120,
))),
],
),
);
}
}

Answer 1

您可以使用容器中的BoxDecoration在背景中设置图像-

Container(
height: 120.0,
width: 120.0,
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage(
'imagename'),
fit: BoxFit.fill,
),
shape: BoxShape.circle,
),
)

Answer 2

在Scaffold的body:上，您使用的是ListView。您仍然可以通过向下滚动找到这些小部件。

对于您的情况，您喜欢在UI上使用文本和按钮小部件。

您需要将主体上的ListView替换为Stack。

return Scaffold(
body: Stack( // this
children: [
CarouselSlider

关于Stack和ListView的更多信息。