ios - UIView 不改变旋转时的宽度和高度

Question

当我将设备从纵向旋转到横向时，我的问题就出在这里，我的自定义 uiview 不会改变它们的宽度和高度。因此，当设备处于横向状态时，它仍会获得纵向设备的宽度和高度。到目前为止，这是我的代码:

import UIKit

class BasicView: UIView {

    let centerView: UIView = UIView()

    override init(frame: CGRect) {
        super.init(frame: frame)

        NSNotificationCenter.defaultCenter().addObserver(self, selector: "orientationChanged", name: UIDeviceOrientationDidChangeNotification, object: nil)
        setupView()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupView()
    }

    override func layoutSubviews() {
        super.layoutSubviews()
        print("orientation or other bounds-impacting change")
    }

    func orientationChanged() {
        centerView.frame = CGRectMake(0, 0,556.0,290.0);
    }

    func setupView() {
        centerView.frame = CGRectMake(0,0,self.frame.size.width,self.frame.size.height)
        self.addSubview(centerView)
    }

}

Answer 1

你应该根据条件设置框架。试试这个:

func orientationChanged()
{
    if(UIDeviceOrientationIsLandscape(UIDevice.currentDevice().orientation))
    {            
        print("landscape") // set frame for landscape
    }

    if(UIDeviceOrientationIsPortrait(UIDevice.currentDevice().orientation))
    {
        print("Portrait") // set frame for portrait
    }

}