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我更新Xcode 8和SnapKit 3.0测试自动布局。在我更新至SnapKit 3.0之前,我可以调用layoutIfNeeded
后得到正确的帧。但我得到frame.origin.x
和.y
两个负值现在SnapKit 3.0。Snapkit 3.0无法获得正确的帧后呼叫layoutIfNeeded
例如:
let signUpView = UIView()
view.addSubview(signUpView)
signUpView.snp.makeConstraints { (make) -> Void in
make.leading.equalTo(50)
make.trailing.equalTo(-50)
make.top.equalTo(topView.snp.bottom)
make.height.equalTo(50)
}
// here frame is: {0,0,0,0}
signUpView.layoutIfNeeded()
// here frame is:
(-137.5, -25.0, 275.0, 50.0)
▿ origin : (-137.5, -25.0)
- x : -137.5
- y : -25.0
▿ size : (275.0, 50.0)
- width : 275.0
- height : 50.0