我正在学习Flutter开发。我想连续显示一些带有短文本的圆角正方形容器。但是,可能的形状是圆形或矩形。因此,我决定设置矩形的宽度和高度,以使它们相等。以下是我用来创建容器的代码
Container(
width: double.maxFinite,
height:
decoration: BoxDecoration(
shape: BoxShape.rectangle,
color: ThemeProvider.themeOf(context).data.primaryColor,
borderRadius: BorderRadius.circular(10),
),
child: Text(keyText),
),
当我单独在Box装饰中设置形状时,Container的大小将调整为文本的大小。设置容器的width属性时,我可以在容器之间划分屏幕的可用宽度,这可以确保在屏幕变小或变大时灵活调整大小,而不必进行硬编码。现在,我要使高度与宽度原来的大小完全相同,从而获得一个方形容器。知道我该怎么做吗?
编辑:我尝试了以下代码,这是两种情况下容器的外观:
Container(
alignment: Alignment.center,
width: double.maxFinite,
height: MediaQuery.of(context).size.width,
decoration: BoxDecoration(
shape: BoxShape.rectangle,
color: ThemeProvider.themeOf(context).data.primaryColor,
borderRadius: BorderRadius.circular(10),
),
Container(
alignment: Alignment.center,
width: MediaQuery.of(context).size.width,
height: MediaQuery.of(context).size.width,
decoration: BoxDecoration(
shape: BoxShape.rectangle,
color: ThemeProvider.themeOf(context).data.primaryColor,
borderRadius: BorderRadius.circular(10),
),
After using MediaQuery.of(context).size.width for height property or both
Container(
width: MediaQuery.of(context).size.width,
height: MediaQuery.of(context).size.width,
decoration: BoxDecoration(
shape: BoxShape.rectangle,
color: ThemeProvider.themeOf(context).data.primaryColor,
borderRadius: BorderRadius.circular(10),
),
child: Text(keyText),
),
使用MediaQuery
。 MediaQuery.of(context).size.width
提供屏幕宽度大小值。
Container(
width: MediaQuery.of(context).size.width,
height: MediaQuery.of(context).size.width,
decoration: BoxDecoration(
shape: BoxShape.rectangle,
color: ThemeProvider.themeOf(context).data.primaryColor,
borderRadius: BorderRadius.circular(10),
),
child: Text(keyText),
)
检查我为您制作的快速示例!
// This function is just an example
List<Widget> buildContainers(BuildContext context, int containerCount) {
// Here you get the width of all your containers
final containerWidth = MediaQuery.of(context).size.width / containerCount;
// Make height = width for squares!
final containerHeight = containerWidth;
// We will gather all containers in this list
List containerList = <Container>[];
for (var i = 0; i < containerCount; i++) {
containerList.add(
Container(
// Use the predefined width and height here!
width: containerWidth,
height: containerHeight,
// Random color to differentiate each container
// You could replace this with your child widget
color: Color(
Random().nextInt(0xFFFFFFFF),
),
),
);
}
return containerList;
}
@override
Widget build(BuildContext context) {
return Container(
child: Row(
children: [
// If you are wondering what are these dots (...)
// they are called "spread operators" and you can find more about them here:
// https://dart.dev/guides/language/language-tour#spread-operator
...buildContainers(context, 7),
],
),
);
}