我想在任何其他视图，甚至是导航栏上，显示一种“弹出”视图，看起来像这样:
全屏黑色背景，0.5 alpha，可以看到下面的另一个UIViewController。 中间有一个带有一些信息的UIView窗口，(如果你想知道一切，一个日历)。
为了做到这一点，我已经创建了一个UIViewController，它包含了两个uiview (background和window)，我试图显示它。我尝试了一个简单的[mySuperVC addSubview:myPopUpVC。视图]，但我仍然有上面的导航栏。
我试着把它表示为一个模态，但是下面的UIViewController消失了，我失去了透明效果。
有什么办法可以做到这一点吗，我相信这很简单……
谢谢!
当前回答
Swift版本的检查响应:
Swift 4:
let view = UIView()
view.frame = UIApplication.shared.keyWindow!.frame
UIApplication.shared.keyWindow!.addSubview(view)
Swift 3.1:
let view = UIView()
view.frame = UIApplication.sharedApplication().keyWindow!.frame
UIApplication.sharedApplication().keyWindow!.addSubview(view)
其他回答
在Swift 4.2和Xcode 10中
var spinnerView: UIView? //This is your view
spinnerView = UIView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.size.width, height: UIScreen.main.bounds.size.height))
//Based on your requirement change width and height like self.view.bounds.size.width
spinnerView?.backgroundColor = UIColor.black.withAlphaComponent(0.6)
// self.view.addSubview(spinnerView)
let currentWindow: UIWindow? = UIApplication.shared.keyWindow
currentWindow?.addSubview(spinnerView!)
在Objective C中
这是你的视图
self.spinnerView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, UIScreen.mainScreen.bounds.size.width, UIScreen.mainScreen.bounds.size.height)];
//Based on your requirement change width and height like self.view.bounds.size.width
self.spinnerView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.6];
// [self.view addSubview:self.spinnerView];
UIWindow *currentWindow = [UIApplication sharedApplication].keyWindow;
[currentWindow addSubview:self.spinnerView];
这可以工作在纵向或横向模式。
更简单的代码是:
yourViewName.layer.zPosition = 1//Change your view name
[[UIApplication sharedApplication].windows.lastObject addSubview:myView];
你可以通过将你的视图直接添加到keyWindow来实现:
UIView *myView = /* <- Your custom view */;
UIWindow *currentWindow = [UIApplication sharedApplication].keyWindow;
[currentWindow addSubview:myView];
更新—适用于Swift 4.1及以上
let currentWindow: UIWindow? = UIApplication.shared.keyWindow
currentWindow?.addSubview(myView)
iOS13及以上更新
已弃用keyWindow。你应该使用以下方法:
UIApplication.shared.windows.first(where: { $0.isKeyWindow })?.addSubview(myView)
[self.navigationController.navigationBar.layer setZPosition:-0.1];
UIView *view = [[UIView alloc]initWithFrame:CGRectMake(10, 20, 35, 35)];
[view setBackgroundColor:[UIColor redColor]];
[self.navigationController.view addSubview:view];
[self.navigationController.view bringSubviewToFront:view];
self.navigationController.view.clipsToBounds = NO;
[self.navigationController.navigationBar.layer setZPosition:0.0];
我建议你创建一个新的UIWindow:
UIWindow *window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
window.rootViewController = viewController;
window.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
window.opaque = NO;
window.windowLevel = UIWindowLevelCFShareCircle;
window.backgroundColor = [UIColor clearColor];
[window makeKeyAndVisible];
然后你可以在另一个UIViewController中管理你的视图。 拆除窗户:
[window removeFromSuperview];
window = nil;
希望对大家有所帮助!
