Flutter can build for multiple devices. Your UI code will render on various screen sizes.

Different Devices have separate pixel densities. These differences affect spacing and sizing of your app's UI across devices. They compress or squash the UI on the device.

You want pixel-perfect apps. You want apps that are the same on every device and adapt the way you want.

In this session, the audience will better understand the above problem and why it exists. They'll also figure out why it is not a Flutter-specific issue. And that as we build cross-platform with Flutter, it is easy to handle it from here.

We will talk about how to solve this problem using the ScreenUtil package in Flutter. About setting a design size and when to use the appropriate number extension for spacing or sizing.