CODEWITHSUNDEEP
iosobjective-cuiview
blee908
blee908

Reputation: 12565

Reduce a UIView's Height From the Top Down?

Resizing a UIView's height can be done by modifying it's frame.size.height property OR by modifying it's NSLayoutHeight constraint. However, by default, reducing a UIView's height will cut off the UIView from the bottom up, I need to reduce a UIView's height from the top down. Is this possible?

Upvotes: 1

Views: 635

Answers (3)

too
too

Reputation: 1

Create container UIView with clipsToBounds == YES, and move your view inside the container view. Just like clipping mask in drawing software.

Upvotes: 0

Ric Santos
Ric Santos

Reputation: 16467

You will need to adjust the origin of the frame as well.

Eg:

UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 20.0, 40.0)];

to change the height to 30.0 from the 'top down' do:

view.frame = CGRectMake(0.0, 10.0, 20.0, 30.0);

Upvotes: 1

Aaron Wojnowski
Aaron Wojnowski

Reputation: 6480

Adjust the origin.y of the view as you change the height.

CGFloat const delta = 100;
[aView setFrame:CGRectMake(CGRectGetMinX([aView frame]), CGRectGetMinY([aView frame]) + delta, CGRectGetWidth([aView bounds]), CGRectGetHeight([aView bounds]) - delta)];

Upvotes: 1

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