Flutter :- 在 PageView 内部图像没有设置为适合屏幕宽度？

Question

我正在使用 PageView 查看寻呼机功能，并在每个页面上显示包含一些文本和按钮的图像。由于我正在使用 Stack 小部件将视图放在另一个视图上，例如 Android 中的 Relative-layout，但是 PageView 第一页上的我的图像未设置为适合屏幕上我已经尝试了下面的解决方案

2). Second Link
但没有得到正确的解决方案，我已经尝试了下面的代码行，

class MyTutorialScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return Material(
      child: PageIndicatorContainer(
        pageView: PageView(
          children: <Widget>[
            Stack(
      //////ON THIS SECTION I AM GETTIG PROBLEM
              children: <Widget>[
                Container(
      /////// NEED THE SOLUTION ON THIS SECTION 
                  color: Colors.yellow,
                  child: Image.asset('images/walkthrough_1.png',
                      fit: BoxFit.fitWidth),
                ),
                Positioned(
                    top: 40.0,
                    right: 40.0,
                    child: InkWell(
                      onTap: () {
                        print("HERE IS I AM");
                      },
                      child: Text(
                        "SKIP",
                        style: TextStyle(color: Colors.white),
                      ),
                    )),
                Positioned(
                  bottom: 48.0,
                  left: 10.0,
                  right: 10.0,
                  child: Column(
                    children: <Widget>[
                      Padding(
                        padding: const EdgeInsets.all(16.0),
                        child: Text(
                          "Welcome",
                          style: TextStyle(
                            fontSize: 20.0,
                            color: Colors.white,
                            fontWeight: FontWeight.bold,
                          ),
                        ),
                      ),
                      Padding(
                        padding: const EdgeInsets.all(16.0),
                        child: Text(
                            "To The Ravindra Kushwaha App. \n One tap Club Destination !",
                            style: TextStyle(
                              fontSize: 20.0,
                              color: Colors.white,
                              fontWeight: FontWeight.bold,
                            ),
                            textAlign: TextAlign.center),
                      ),
                    ],
                  ),
                )
              ],
            ),
            Container(
              color: Colors.yellow,
              child: Image.asset('images/walkthrough_2.png', fit: BoxFit.cover),
            ),
            Container(
              color: Colors.blueAccent,
              child: Image.asset('images/walkthrough_3.png', fit: BoxFit.cover),
            )
          ],
        ),
        length: 3,
        align: IndicatorAlign.bottom,
        indicatorSpace: 5.0,
        indicatorColor: Colors.white,
        indicatorSelectorColor: Colors.purpleAccent,
        padding: EdgeInsets.all(10.0),
      ),
    );
  }
}

并且请检查我从上面的代码得到的屏幕

在屏幕上方，如何去除右侧的白色？

我正在使用这个库作为指标

page_indicator: ^0.2.1

Answer 1

请使用下面的行根据设备的宽度和高度显示图像。请尝试下面的代码行，如有疑问请告诉我

 Container(
    height: double.maxFinite, //// USE THIS FOR THE MATCH WIDTH AND HEIGHT
    width: double.maxFinite,
    child:
    Image.asset('images/walkthrough_3.png', fit: BoxFit.fill),
    )

Answer 2

我已经实现了 ViewPager (PageView) 功能，通过下面的代码行，我发布了另一个可以是的答案对未来的用户有帮助。

我已经将这个库用于如下指标

page_indicator: ^0.2.1

请检查下面的代码行

import 'package:flutter/material.dart';
import 'package:page_indicator/page_indicator.dart';

class MyTutorialScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return Material(
      child: PageIndicatorContainer(
        pageView: PageView(
          physics: const AlwaysScrollableScrollPhysics(),

          children: <Widget>[
            Stack(
              children: <Widget>[
                Container(
                  height: double.maxFinite,
                  width: double.maxFinite,
                  child:
                      Image.asset('images/walkthrough_1.png', fit: BoxFit.fill),
                ),
                Positioned(
                    top: 40.0,
                    right: 40.0,
                    child: InkWell(
                      onTap: () {
                        print("HERE IS I AM");
                      },
                      child: Text(
                        "SKIP",
                        style: TextStyle(color: Colors.white),
                      ),
                    )),
                Positioned(
                  bottom: 48.0,
                  left: 10.0,
                  right: 10.0,
                  child: Column(
                    children: <Widget>[
                      Padding(
                        padding: const EdgeInsets.all(16.0),
                        child: Text(
                          "Welcome",
                          style: TextStyle(
                            fontSize: 20.0,
                            color: Colors.white,
                            fontWeight: FontWeight.bold,
                          ),
                        ),
                      ),
                      Padding(
                        padding: const EdgeInsets.all(16.0),
                        child: Text(
                            "To The Ravindra Kushwaha App. \n One tap Club Destination !",
                            style: TextStyle(
                              fontSize: 20.0,
                              color: Colors.white,
                              fontWeight: FontWeight.bold,
                            ),
                            textAlign: TextAlign.center),
                      ),
                    ],
                  ),
                )
              ],
            ),
            Stack(
              children: <Widget>[
                Container(
                  height: double.maxFinite,
                  width: double.maxFinite,
                  child:
                      Image.asset('images/walkthrough_2.png', fit: BoxFit.fill),
                ),
                Positioned(
                    top: 40.0,
                    right: 40.0,
                    child: InkWell(
                      onTap: () {
                        print("HERE IS I AM");
                      },
                      child: Text(
                        "SKIP",
                        style: TextStyle(color: Colors.white),
                      ),
                    )),
                Positioned(
                  bottom: 48.0,
                  left: 10.0,
                  right: 10.0,
                  child: Column(
                    children: <Widget>[
                      Padding(
                        padding: const EdgeInsets.all(16.0),
                        child: Text(
                          "Welcome",
                          style: TextStyle(
                            fontSize: 20.0,
                            color: Colors.white,
                            fontWeight: FontWeight.bold,
                          ),
                        ),
                      ),
                      Padding(
                        padding: const EdgeInsets.all(16.0),
                        child: Text(
                            "To The Ravindra Kushwaha App. \n One tap Club Destination !",
                            style: TextStyle(
                              fontSize: 20.0,
                              color: Colors.white,
                              fontWeight: FontWeight.bold,
                            ),
                            textAlign: TextAlign.center),
                      ),
                    ],
                  ),
                )
              ],
            ),
            Stack(
              children: <Widget>[
                Container(
                  height: double.maxFinite,
                  width: double.maxFinite,
                  child:
                      Image.asset('images/walkthrough_3.png', fit: BoxFit.fill),
                ),
                Positioned(
                  bottom: 48.0,
                  left: 10.0,
                  right: 10.0,
                  child: Column(
                    children: <Widget>[
                      Padding(
                        padding: const EdgeInsets.all(16.0),
                        child: Text(
                          "Welcome",
                          style: TextStyle(
                            fontSize: 20.0,
                            color: Colors.white,
                            fontWeight: FontWeight.bold,
                          ),
                        ),
                      ),
                      Padding(
                        padding: const EdgeInsets.all(8.0),
                        child: Text(
                            "To The Ravindra Kushwaha App. \n One tap Club Destination !",
                            style: TextStyle(
                              fontSize: 20.0,
                              color: Colors.white,
                              fontWeight: FontWeight.bold,
                            ),
                            textAlign: TextAlign.center),
                      ),
                      Container(
                        padding: const EdgeInsets.all(16.0),

                        child: RaisedButton(
                          child: Text("Let's GO!!"),
                          onPressed: () {},
                        ),
                      ),
                    ],
                  ),
                )
              ],
            )
          ],
        ),
        length: 3,
        align: IndicatorAlign.bottom,
        indicatorSpace: 5.0,
        indicatorColor: Colors.white,
        indicatorSelectorColor: Colors.purpleAccent,
        padding: EdgeInsets.all(10.0),
      ),
    );
  }
}

Flutter :- 在 PageView 内部图像没有设置为适合屏幕宽度？

Flutter :- Inside the PageView Image is not setting to fit the screen on width?

android

flutter

flutter-dependencies

flutter-layout