Lyt iOS 内容阅读视图 项目简介
Lyt 是 UIView 的分类,可实现自动的更多阅读内容和更少阅读内容的展示。使用方法:[view lyt_centerInParent];替代:NSLayoutConstraint *centerXConstraint = [NSLayoutConstraint
constraintWithItem:view attribute:NSLayoutAttributeCenterX
relatedBy:NSLayoutRelationEqual toItem:view.superview
attribute:NSLayoutAttributeCenterX multiplier:1.0 constant:0];
[view.superview addConstraint:centerXConstraint];
NSLayoutConstraint *centerYConstraint = [NSLayoutConstraint
constraintWithItem:view
attribute:NSLayoutAttributeCenterY
relatedBy:NSLayoutRelationEqual toItem:view2
attribute:NSLayoutAttributeCenterY multiplier:1.0 constant:0];
[view.superview addConstraint:centerYConstraint];
constraintWithItem:view attribute:NSLayoutAttributeCenterX
relatedBy:NSLayoutRelationEqual toItem:view.superview
attribute:NSLayoutAttributeCenterX multiplier:1.0 constant:0];
[view.superview addConstraint:centerXConstraint];
NSLayoutConstraint *centerYConstraint = [NSLayoutConstraint
constraintWithItem:view
attribute:NSLayoutAttributeCenterY
relatedBy:NSLayoutRelationEqual toItem:view2
attribute:NSLayoutAttributeCenterY multiplier:1.0 constant:0];
[view.superview addConstraint:centerYConstraint];