canvas - 如何在 Flutter canvas 中画十字？

Question

我是 Flutter - Canvas 的新手。我需要画一个十字，就像下面这样。我想画 2 条线并将它们放在一个堆栈中，在线旋转 90 度，但我不确定。谁能帮我这个？

Answer 1

void paint(Canvas canvas, Size size) { 
    final paint = Paint(); 
    paint.color = Colors.red; 
    canvas.drawLine(new Offset(0, 0), new Offset(size.width, size.height), paint);
    canvas.drawLine(new Offset(size.width, 0), new Offset(0, size.height), paint); 
}