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nevyn/ExampleUsage.m

Created December 14, 2016 22:53
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ExampleUsage.m
LBNotificationBanner *banner = [LBNotificationBanner new];
[overlay addSubview:banner];
banner.translatesAutoresizingMaskIntoConstraints = NO;
LBInstallConstraint(banner, Top, Equal, overlay, Top, 1, margin);
LBInstallConstraint(banner, Left, Equal, overlay, Left, 1, margin);
LBInstallConstraint(banner, Right, Equal, overlay, Right, 1, margin);
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LBMasonryMacro.h
#define LBConstraint(view1, attr1, relation, view2, attr2, mul, const) [NSLayoutConstraint constraintWithItem:view1 attribute:NSLayoutAttribute ## attr1 relatedBy: NSLayoutRelation ## relation toItem:view2 attribute: NSLayoutAttribute ## attr2 multiplier:mul constant:const]
#define LBInstallConstraint(view1, attr1, relation, view2, attr2, mul, const) ({id constraint = LBConstraint(view1, attr1, relation, view2, attr2, mul, const); [view2 addConstraint:constraint]; constraint; })
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MasonryExample.m
// equivalent in Masonry
[banner makeConstraints:^(Maker *make) { make.top.equalTo(overlay.mas_top).with.offset(20); } ]
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