flutter 颜色渐变:
Positioned.fill( //使用绝对定位可全局渐变(可不用)
child: Container(
decoration: BoxDecoration(
gradient: LinearGradient( //渐变位置
begin: Alignment.topRight, //右上
end: Alignment.bottomLeft, //左下
stops: [0.0, 1.0], //[渐变起始点, 渐变结束点]
//渐变颜色[始点颜色, 结束颜色]
colors: [Color.fromRGBO(63, 68, 72, 1), Color.fromRGBO(36, 41, 46, 1)]
)
),
),
)