cocoa - AutoLayout SubViews alignment to superview's center X -


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how subviews alignment superview's center x?

i have 2 subviews added resizing able superview. subviewa want trailing alignment superview's center x , subviewb want leading superview's center x.

as situation how can do?

thanks

you can try add constraints following patterns (nslayoutconstraint class reference):

[superview addconstraint:[nslayoutconstraint constraintwithitem:subviewa                 attribute:nslayoutattributetrailing                 relatedby:nslayoutrelationequal                    toitem:superview                 attribute:nslayoutattributecenterx                multiplier:1.0                  constant:0.0]];  [superview addconstraint:[nslayoutconstraint constraintwithitem:subviewb                 attribute:nslayoutattributeleading                 relatedby:nslayoutrelationequal                    toitem:superview                 attribute:nslayoutattributecenterx                multiplier:1.0                  constant:0.0]];

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