A simple UIView Category for implement constraint with VFL(Visual Format Language).
###CocoaPods
CocoaPods is a dependency manager for Objective-C, which automates and simplifies the process of using 3rd-party libraries in your projects.
####Podfile pod 'UIViewCategoryForAutoLayout', '~> 0.1.1'
###Manual
Add UIView+archy.h
& UIView+archy.m
to your project.
// Constraints:
//
// Label: Top of the superview with 20 separation and 44 height
NSDictionary *views = NSDictionaryOfVariableBindings(_label);
NSArray *constraints = @[@"V:|-20-[_label(44)]"];
// Apply constraints
[self.view applyLayoutConstraintWithVisualFormat:constraints views:views];
See the demo project for more complex code.
Copyright (c) 2013 Archy. All rights reserved.
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