iOS swift将我的位置按钮移动到右上角

Posted 2023-03-17

【中文标题】iOS swift将我的位置按钮移动到右上角

【英文标题】：iOS swift move my location button to top right corner

【发布时间】：2016-09-21 06:39:08

【问题描述】：

目前，当我使用 GMSMapView api 设置按钮显示时，它显示在右下角。

关于这个还有另一个关于 SO 的问题，但这是针对 swift 而不是objective-c（它针对屏幕上的不同位置。）

【参考方案1】：

只需调整这个post中的解决方案

在我看来，它看起来像这样：

let myLocationButton = mapView.subviews.last! as! UIButton
myLocationButton.autoresizingMask = UIViewAutoresizingFlexibleRightMargin|UIViewAutoresizingFlexibleTopMargin
let frame = myLocationButton.frame
frame.origin.y = 10
myLocationButton.frame = frame

【参考方案2】：

创建您自己的 myLocationButton 并在点击时将您的相机目标更新到当前位置。

【参考方案3】：

这里是一个完整的实现。久经考验：

class MyViewController : UIViewController 

    var userTracker : MKUserTrackingButton? //strong reference
    var compass : MKCompassButton?    //strong reference

    override func viewLayoutMarginsDidChange()  //when device is rotated
        setUpUserLocationButton()
    

    func setUpUserLocationButton() 
        let buttonMargins : CGFloat = 12
        if userTracker == nil 
            userTracker  = MKUserTrackingButton(mapView: self.mapView)
            userTracker!.backgroundColor = .white
            view.addSubview(userTracker!)
            userTracker!.autoresizingMask = [.flexibleTopMargin, .flexibleLeftMargin]
            setGenericShadow(subView: userTracker!)

            self.mapView.showsCompass = false
            compass = MKCompassButton(mapView: mapView)
            compass!.compassVisibility = .visible
            compass!.autoresizingMask = [.flexibleTopMargin, .flexibleLeftMargin]
            view.addSubview(compass!)
        

        compass!.frame.origin.x = (self.view.frame.width) - (compass!.frame.size.width) - (self.view.safeAreaInsets.right == 0 ? buttonMargins : self.view.safeAreaInsets.right )
        compass!.frame.origin.y = self.view.safeAreaInsets.top + buttonMargins

        userTracker!.frame.origin.x = (self.view.frame.width) - (userTracker!.frame.size.width) - (self.view.safeAreaInsets.right == 0 ? buttonMargins : self.view.safeAreaInsets.right )
        userTracker!.frame.origin.y = self.view.safeAreaInsets.top + buttonMargins + compass!.frame.height + buttonMargins
    

    func setGenericShadow(subView:UIView) 
        subView.layer.shadowPath = UIBezierPath(rect:  subView.bounds).cgPath
        subView.layer.shadowOpacity = 0.2
        subView.layer.shadowColor = UIColor.black.cgColor
        subView.layer.shadowOffset = CGSize(width: 0, height: 0)
        subView.layer.shadowRadius = 4
        subView.layer.cornerRadius = 5
        subView.layer.masksToBounds = false