在某些情况下,我们需要删除VC,比如自定义的 启动画面后面一个登陆界面,这样这两个界面在等陆后就不再使用了。
class VC1: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let lab :UILabel = UILabel(frame: CGRect(x: 10, y: 50, width: 100, height: 30))
lab.text = "Lab1"
self.view.addSubview(lab)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
let vc2 = VC2()
let appDG = UIApplication.shared.delegate as! AppDelegate
appDG.window?.rootViewController = vc2
// self.present( vc2, animated: true, completion: nil)
// self.removeFromParentViewController()
}
}