ios - UILabel reveal animation (without moving or resizing the text) -

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i have been struggling day. want reveal label bottom top without text moving or resizing @ point. reveal effect. in image belowenter image description here

all solutions have came far cause text move. tried doing scale transform (with setting anchor bottom) caused text inside resize when animation happening. tried putting label in view , resize view (and setting autoresize subview no , clip subview yes) still causes label inside move.

place opaque view on top of hello world , slide upwards. if have ui elements above it, make sure above sliding element.


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