Objective-c - iOS - hide/unhide label, textfield etc -

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i want hide/unhide controls of subview in view. example: when button action occurs, labels become hidden unhide on subsequent button action , on. have implemented functionality through interface builder. how can same implementation programmatically?

i've tried

[label1 hidden: true];

which hasn't worked me.

here answer:

[label1 sethidden:yes];

yes objective-c's version of true.


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