iOS Swift3.0实现视频播放横竖屏切换效果
iOS Swift3.0实现视频播放横竖屏切换效果关键代码:添加检测设备方向的通知:
UIDevice.current.beginGeneratingDeviceOrientationNotifications()
// 检测设备方向
NotificationCenter.default.addObserver(self, selector: #selector(deviceOrientationChange), name: NSNotification.Name.UIDeviceOrientationDidChange, object: nil)设备方向改变调用:
/// 设备方向改变
@objc fileprivate func deviceOrientationChange() {
// 获取当前设备方向
let orientation = UIDevice.current.orientation
// 如果手机硬件屏幕朝上或者屏幕朝下或者未知
if orientation == UIDeviceOrientation.faceUp || orientation == UIDeviceOrientation.faceDown || orientation == UIDeviceOrientation.unknown {
return
}
// UIDeviceOrientation 和 UIInterfaceOrientation 方向转换
let interfaceOrientation: UIInterfaceOrientation = UIInterfaceOrientation(rawValue: orientation.rawValue)!
switch interfaceOrientation {
//屏幕竖直,home键在上面
case UIInterfaceOrientation.portraitUpsideDown: break
//屏幕竖直,home键在下面
case UIInterfaceOrientation.portrait:
toOrientation(orientation: UIInterfaceOrientation.portrait); break
//屏幕水平,home键在左
case UIInterfaceOrientation.landscapeLeft:
toOrientation(orientation: UIInterfaceOrientation.landscapeLeft); break
//屏幕水平,home键在右
case UIInterfaceOrientation.landscapeRight:
toOrientation(orientation: UIInterfaceOrientation.landscapeRight); break
default:
break
}
}
/// 旋转
private func toOrientation(orientation: UIInterfaceOrientation) {
//获取当前状态栏的方向
let currentOrientation = UIApplication.shared.statusBarOrientation
//如果当前的方向和要旋转的方向一致,直接return
if currentOrientation == orientation {
return
}
//根据要旋转的方向,重新布局
if orientation != UIInterfaceOrientation.portrait {
// 从全屏的一侧直接到全屏的另一侧不修改
if currentOrientation == UIInterfaceOrientation.portrait {
label.snp.makeConstraints({ (make) in
make.width.equalTo(UIScreen.main.bounds.size.height)
make.height.equalTo(UIScreen.main.bounds.size.width)
make.center.equalTo(UIApplication.shared.keyWindow!)
})
}
}
//状态栏旋转
UIApplication.shared.setStatusBarOrientation(orientation, animated: false)
UIView.beginAnimations(nil, context: nil)
UIView.setAnimationDuration(0.35)
label.transform = CGAffineTransform.identity
label.transform = getTransformRotationAngle()
UIView.commitAnimations()
}
/// 获取旋转角度
private func getTransformRotationAngle() -> CGAffineTransform {
let interfaceOrientation = UIApplication.shared.statusBarOrientation
if interfaceOrientation == UIInterfaceOrientation.portrait {
return CGAffineTransform.identity
} else if interfaceOrientation == UIInterfaceOrientation.landscapeLeft {
return CGAffineTransform(rotationAngle: (CGFloat)(-M_PI_2))
} else if (interfaceOrientation == UIInterfaceOrientation.landscapeRight) {
return CGAffineTransform(rotationAngle: CGFloat(M_PI_2))
}
return CGAffineTransform.identity
}
在Info.plist中通添加View controller-based status bar appearance并设置值为NO(why)
Demo效果:http://img.blog.csdn.net/20170312111802530?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZmVuZzJxaW5n/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast
**** Hidden Message *****
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