我想制作一个看起来像这样的小部件 - 动态:
这是我的尝试,我想动态缩小大小,因为我定义了更大圆的初始大小:
Row _pagesIndcator(int length) {
List<Widget> points = <Widget>[];
for (var i = 0; i < length; i++) {
points.add(Padding(
padding: const EdgeInsets.only(right:2.0),
child: Container(
decoration: BoxDecoration(
color: Colors.white,
shape: BoxShape.circle,
),
height: 8,
width: 8,
),
));
}
return Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: points,
);
}
我试过这个:height: 8-i/1,
但我不认为这是制作它的正确方法!
尝试一下,让我知道如果它有效,你可以根据你的需要玩这些值。
Row _pagesIndicator(int length) {
List<Widget> list = [];
list = List.generate(length, (i) {
return Container(
width: (length - i) * 10.0 + (i + 1) * 5,
height: (length - i) * 10.0 + (i + 1) * 5,
margin: EdgeInsets.symmetric(horizontal: 2),
decoration: BoxDecoration(shape: BoxShape.circle, color: Colors.black),
);
});
return Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: list,
);
}