Question

我试图在文本中添加轮播。但是到目前为止，我只能添加图像轮播，不知道如何添加文本。请帮我。全新的。我希望输出像上面的图片一样，下面的文本一样，但是两者都需要同时滑动。

我不知道在哪里添加文本字段。我在YouTube上举了一个例子制作了该轮播。但没有带文字的轮播图片示例。我手动尝试过一些东西，但是一切都做得不好。请帮我修复它。谢谢

  class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyHomePage(title: 'Slider'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  PageController pageController;

  //Images List
  List<String> images = [
    '',
  ];

  @override
  void initState() {
    super.initState();
    pageController = PageController(initialPage: 1, viewportFraction: 0.6);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: PageView.builder(
            controller: pageController,
            itemCount: images.length,
            itemBuilder: (context, position) {
              return imageSlider(position);
            }
        )
    );
  }

  imageSlider(int index) {
    return AnimatedBuilder(
        animation: pageController,
        builder: (context, widget) {
          double value = 1;
          if(pageController.position.haveDimensions){
            value = pageController.page - index;
            value = (1 - (value.abs() * 0.3.clamp(0.0, 1.0)));
          }
          return Center(
            child: SizedBox(
              height: Curves.easeInOut.transform(value) * 400.0,
              width: Curves.easeInOut.transform(value) * 350.0,
              child: widget,
            ),
          );
        },
      child: Container(
        margin: EdgeInsets.all(10.0),
        child: Image.asset(images[index],fit: BoxFit.cover),
      ),
    );
  }
}

Answer 1

使用列而不是容器，因此只需将其替换：

child: Container(
    margin: EdgeInsets.all(10.0),
    child: Image.asset(images[index],fit: BoxFit.cover),
),

与此：

child: Column(
    // To centralize the children.
    mainAxisAlignment: MainAxisAlignment.center,
    crossAxisAlignment: CrossAxisAlignment.center,
    children: <Widget>[
        // First child
        Container(
          margin: EdgeInsets.all(10.0),
          child: Image.asset(images[index],fit: BoxFit.cover),
        ),
        // Second child
        Text(
          'foo',
          style: TextStyle(
             // Add text's style here
          ),
        ),
    ]
),

或者，您可以使用现成的实例，例如carousel_slider或flutter_swiper

Answer 2

试试这个

child: Column(
    mainAxisAlignment: MainAxisAlignment.center,
    crossAxisAlignment: CrossAxisAlignment.center,
    children: <Widget>[
      Text(
        heading,
        style: TextStyle(
          color: Colors.white,
          fontSize: 20.0,
          fontWeight: FontWeight.bold,
        ),
      ),
      Padding(
        padding: const EdgeInsets.all(10.0),
        child: Text(
          sub_heading,
          style: TextStyle(
            color: Colors.white,
            fontSize: 15.0,
          ),
          //textAlign: TextAlign.center,
        ),
      ),
    ],
  ),

如何在抖动中添加文字和轮播图片？

2 个答案: