我希望创建一个扩展函数来嵌套和合并到对象为一个对象。我想要底部的uiview和顶部的uiimageveiw。因此,当用户调用该函数时,它会对这个组合对象做出反应。由于两个对象处于完全相同的位置,因此它应该可以工作。
var grant = UIImageView()
var drawPlace = UIView()
viewdidload(){
NSLayoutConstraint.activate ([
drawPlace.trailingAnchor.constraint(equalTo: view.centerXAnchor, constant :150),
drawPlace.topAnchor.constraint(equalTo: view.centerYAnchor, constant : -100),
drawPlace.widthAnchor.constraint(equalToConstant: 300),
drawPlace.heightAnchor.constraint(equalToConstant: 300),
grant.trailingAnchor.constraint(equalTo: view.centerXAnchor, constant :150),
grant.topAnchor.constraint(equalTo: view.centerYAnchor, constant : -100),
grant.widthAnchor.constraint(equalToConstant: 300),
grant.heightAnchor.constraint(equalToConstant: 300),
])}
https://stackoverflow.com/questions/58421848
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