通过UIWindows单击 [英] Click through UIWindows

问题描述

在所有内容中，我一直都遵循以下示例来创建<在 statusBar 顶部的code> UIWindow 中。

I've been following this example in everything to create a UIWindow on top of the statusBar.

我的 UIWindow 显示在 statusBar 的顶部一切都很好，但应用程序的实际视图（带有按钮的视图）无法响应我的操作：

My UIWindow gets displayed on top of the statusBar and all is fine, but the actual view of the app (the one with the button) doesn't respond to my actions:

我正在使用Storyboards和iOS6。
这是创建 statusBar 叠加层的代码：

I'm using Storyboards and iOS6. Here's my code for creating a statusBar overlay:

- (void)viewDidAppear:(BOOL)animated     {

    UIWindow *overlayWindow = [[ACStatusBarOverlayWindow alloc] initWithFrame:CGRectZero];
    AppDelegate *app = [[UIApplication sharedApplication] delegate];

    overlayWindow.rootViewController = app.window.rootViewController;
    app.window  = overlayWindow;
    [overlayWindow makeKeyAndVisible];

}

statusBar 没有响应，我无法点击 UIButton 。是否可以通过某种方式使带有我应用程序界面的UIWindow忽略 ACStatusBarOverlayWindow 而接受触摸？怎么办呢？

The view under the statusBar does not respond and I can't tap on the UIButton. Is it possible to somehow make the UIWindow with the interface of my app accept the touches ignoring the ACStatusBarOverlayWindow? How can that be done?

推荐答案

通常，如果按钮对触摸没有响应，那是因为按钮在边界之外它是父级的UIView。

Usually if a button does not respond to a touch it's because the button is outside of the bounds of it's parent's UIView.

您的代码似乎不是解决您要解决的问题的适当方法。如果您只需要窗口具有状态栏，或者只需要向当前视图添加按钮，那么您执行此操作的方式可能是错误的。

Your code does not seem to be the appropriate approach to the problem you're trying to solve. If you just need your window to have a status bar, or you just need to add a button to you current view, the way you're doing it is probably incorrect.

就我个人而言，我从来没有见过有人在viewDidAppear中实例化UIWindow，因为该应用程序带有它自己的UIWindow。您应该使用UIView并向其中添加覆盖。

Personally I've never seen anyone instantiate a UIWindow in a viewDidAppear, since the app comes with it's own UIWindow. You should be using a UIView and adding your overlay to it.

请注意，如果要以尝试的方式进行操作，则窗口将至少需要一个框架。因此initWithFrame：CGRectZero可能是initWithFrame：CGRectMake（0,0,320,480）或类似的东西。

As a side note if you were to do it the way you're attempting to, then your window would at least need a frame. So initWithFrame:CGRectZero would be initWithFrame:CGRectMake(0,0,320,480) or something along those lines.

解决此问题的更好方法是实例化UIViewController并将其设置作为您的rootViewController。或只需将按钮添加到当前viewController的视图中。

A better way to approach the problem is to instantiate a UIViewController and set it as your rootViewController. Or simply add your button to the current viewController's view.

- (void)viewDidLoad     {

    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [button addTarget:self 
               action:@selector(myMethod:)
     forControlEvents:UIControlEventTouchUpInside];
    [button setTitle:@"Tap Me" forState:UIControlStateNormal];
    [button sizeToFit];
    [self.view addSubview:button];
}

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