UIButton dynamic width in autolayout

Question

Hello guys i have one that is. I have two buttons in controller when i remove or hidden one button i want to other button to increase size according to width. Here i am using the auto layout so please post your answer accordingly

See the above image when i hide the button other button it should be adjust with the size.

So this is a perfect opportunity to learn. You just add the stack view and the sun views to it. When you remove a sub view it'll reorganise the other sub views for you — Wain, Nov 07 '15 at 08:31

André Slotta · Accepted Answer · 2015-11-06T14:36:04.670

2

set up all the constraints needed to create the layout like in your first screenshot
in IB you select the "time-button" and the "pay by cash" button and add a constraint to align their trailing edges
select this new "trailing-edges-constraint" and set it's priority to high (750)
(repeat the steps 1-3 for the "pay now" button but this time align to the leading edges)

and that's it!

edited Nov 06 '15 at 14:36

answered Nov 06 '15 at 14:28

André Slotta

13,774
2
22
34

No this is not worked but I Have use the following link it help me a little but not resolve the issue. – jogshardik Nov 07 '15 at 11:05
http://stackoverflow.com/questions/16009405/uilabel-sizetofit-doesnt-work-with-autolayout-ios6 – jogshardik Nov 07 '15 at 11:13
take a look at my sample project and see that it works: https://www.dropbox.com/sh/8i28u5ncnx6y1ws/AADlWbQEvLdFTg0AraZcMwwea?dl=0 – André Slotta Nov 07 '15 at 12:35
This is worked but i don't use stackview as it is only worked for ios 9. – jogshardik Nov 19 '15 at 06:42

SeanChense · Answer 2 · 2015-11-06T14:26:46.297

FDStackView

Use UIStackView as if it supports iOS 6. It will automatically replace the symbol for UIStackView into FDStackView at runtime before iOS 9.

Or you can using a array of UIView to hold the buttons you want. The first and last element of the array is a 1px width 0.01 alpha UIView. Making the first's left align to the left of screen and the last's right align to the right of screen.

The all you need to do is that put the buttons in the array and make sure every buttons are between the 1px views.

score 0 · Answer 3 · edited Nov 09 '15 at 06:59

0

you can add this constraint manually by creating its outlet of "width constraint" like below :

And wherever you want to re-set its width then you can do it manually,

   - (IBAction)buttonClicked:(id)sender 
{
    [UIView animateWithDuration:0.15 animations:^{
        _widthConstraint.constant = 100;
    }];
    [self.view layoutIfNeeded];
    [self.view updateConstraints];
}

edited Nov 09 '15 at 06:59

Kaushik Movaliya

799
11
27

answered Nov 09 '15 at 06:54

Hima

1,249
1
14
18

UIButton dynamic width in autolayout

3 Answers3