问题描述
我正在尝试为主页设置背景图像.我从屏幕开始获取图像位置并填充宽度但不填充高度.我的代码中遗漏了什么吗?Flutter 有图像标准吗?图片是否根据每部手机的屏幕分辨率进行缩放?
I am trying to set a background image for the home page. I am getting the image place from start of the screen and filling the width but not the height.Am I missing something in my code? Are there image standards for flutter? Do images scale based on each phone's screen resolution?
class BaseLayout extends StatelessWidget{
@override
Widget build(BuildContext context){
return new Scaffold(
body: new Container(
child: new Column(
mainAxisAlignment: MainAxisAlignment.start,
children: [
new Image.asset("assets/images/bulb.jpg")
]
)
)
);
}
}
推荐答案
我不确定我是否理解您的问题,但是如果您希望图像填满整个屏幕,您可以使用 DecorationImage
与 BoxFit.cover
.
I'm not sure I understand your question, but if you want the image to fill the entire screen you can use a DecorationImage
with a fit of BoxFit.cover
.
class BaseLayout extends StatelessWidget{
@override
Widget build(BuildContext context){
return Scaffold(
body: Container(
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage("assets/images/bulb.jpg"),
fit: BoxFit.cover,
),
),
child: null /* add child content here */,
),
);
}
}
对于您的第二个问题,这里是关于如何嵌入分辨率的文档的链接- 依赖资产图像到您的应用中.
For your second question, here is a link to the documentation on how to embed resolution-dependent asset images into your app.
这篇关于如何在 Flutter 中设置背景图像?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!