[Flutter] container background gradient

flutter 그라데이션 주기 (외국에서는 gradient로 부른다고함)

자주는 아니지만 가끔 쓰는경우가있어서 정리해본다

LinearGradient

Container(
  decoration: const BoxDecoration(
    gradient: LinearGradient(
      begin: Alignment.centerLeft,
      end: Alignment.centerRight,
      colors: [
        Colors.yellow,
        Colors.pink,
      ],
    ),
  ),
),

Container(
  decoration: const BoxDecoration(
    gradient: LinearGradient(
      begin: Alignment.topLeft,
      end: Alignment(0.8, 1),
      colors: <Color>[
        Color(0xff1f005c),
        Color(0xff5b0060),
        Color(0xff870160),
        Color(0xffac255e),
        Color(0xffca485c),
        Color(0xffe16b5c),
        Color(0xfff39060),
        Color(0xffffb56b),
      ], // Gradient from https://learnui.design/tools/gradient-generator.html
      tileMode: TileMode.mirror,
    ),
  ),
),

RadialGradient

Container(
  decoration: const BoxDecoration(
    gradient: RadialGradient(
      center: Alignment.center,
      radius: 0.2,
      colors: <Color>[
        Colors.red,
        Colors.orange,
        Colors.yellow,
        Colors.green,
        Colors.blue,
        Colors.indigo,
        Colors.purple,
      ],
      tileMode: TileMode.repeated,
    ),
  ),
),

Container(
  decoration: const BoxDecoration(
    gradient: RadialGradient(
      center: Alignment(0.7, -0.6), // near the top right
      radius: 0.2,
      colors: <Color>[
        Color(0xFFFFFF00), // yellow sun
        Color(0xFF0099FF), // blue sky
      ],
      stops: <double>[0.4, 1.0],
    ),
  ),
),

SweepGradient

Container(
  decoration: const BoxDecoration(
    gradient: SweepGradient(
      center: FractionalOffset.center,
      colors: <Color>[
        Color(0xFF4285F4), // blue
        Color(0xFF34A853), // green
        Color(0xFFFBBC05), // yellow
        Color(0xFFEA4335), // red
        Color(0xFF4285F4), // blue again to seamlessly transition to the start
      ],
      stops: <double>[0.0, 0.25, 0.5, 0.75, 1.0],
    ),
  ),
),

Container(
  decoration: const BoxDecoration(
    gradient: SweepGradient(
      center: FractionalOffset.topCenter,
      colors: <Color>[
        Colors.black,
        Colors.yellow,
        Colors.black,
      ],
      stops: [0.15, 0.25, 0.35],
    ),
  ),
),