RenderBox class Null safety. A render object in a 2D Cartesian coordinate system . The size of each box is expressed as a width and a height. Each box has its own coordinate system in which its upper left corner is placed at (0, 0).
RenderBox class Null safety. A render object in a 2D Cartesian coordinate system . The size of each box is expressed as a width and a height. Each box has its own coordinate system in which its upper left corner is placed at (0, 0).