ios - Trying to place a UIView over top of a UIImageView to highlight a section of UIImage -


i building app displays text book on screen. text of page auiimage, , contained inside of auiimageview on screen. highlight each line of page, using auiiview placed on top each line. here similar trying achieve, except in uiimage, have multiple lines highlighted, whereas in case, plan highlight 1 line @ time:

enter image description here

each line covered auiview of same dimensions line, want thisuiview transparent, , colour yellow, red, or blue, not clear. opacity, , alpha values use achieve effect similar uiimage?

thanks in advance reply.

set backgroundcolor of uiview desired color. set alpha of uiview 0.5

however, effect somehow different picture posted uiview on top , text color affected.


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