toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() => 'ppi: $ppi, '
'diagonal: $diagonal inches, '
'physicalSize: ${physicalSize.width}x${physicalSize.height} inches, '
'resolution: ${resolution.width}x${resolution.height} pixels, '
'isPrimary: $isPrimary';