flutter常用widget —— container

Container(
          width: 100,
          height: 100,
          alignment: Alignment(0,0),
          padding: EdgeInsets.all(5),
          margin: EdgeInsets.all(20),
          child: Icon(Icons.add,size: 80,color: Colors.white),
          transform: Matrix4.rotationZ(-50),
          decoration: BoxDecoration(
            color: Colors.green,
            border: Border.all(
              width: 3,
              color: Colors.red
            ),
            borderRadius: BorderRadius.circular(50),
            boxShadow: [
              BoxShadow(color: Colors.black12,offset: Offset(10, 10),spreadRadius: 5,blurRadius: 10) //spread延伸 - blur 模糊度
            ]
          ),
        )