Green’s Dictionary of Slang

flashy, showy, attractive.

1800s		American (Century) n.p.: A man’s identification with the movement was taken as proof that he was viewy and unfit for leadership [F&H].
1848		J.H. Newman Loss and Gain i 3: He was viewy, in a bad sense of the word [F&H].
1861		(con. 1840s–50s) H. Mayhew London Labour and London Poor III 230: [the chests of drawers] would hold together for a time... and that was all; but the slaughterers cared only to have them viewy and cheap [F&H].