bug in new keywindow (custom alertsheet)

[leafc]

When have a new window like custom alertsheet it will some bug
rootViewController and keyWindow should be weak not strong
otherwise keyWindow cannot be release

当有一个新的Window的时候比如自定义带输入框的弹出框，就会有BUG，输入框高度不变，底下的View却被提上去了，另外如果属性不改成weak会造成退出alertView后界面点击不了，无法进行任何操作，因为弹出框的Window不能释放。

@Property(nonatomic, weak, readonly) UIViewController *rootViewController;
@Property(nonatomic, weak, readonly) UIWindow *keyWindow;

-(UIViewController *)rootViewController
{
// if (_rootViewController == nil)
_rootViewController = [[self keyWindow] rootViewController];
return _rootViewController;
}

-(UIWindow *)keyWindow
{
// if (_keyWindow == nil)
_keyWindow = [[UIApplication sharedApplication] keyWindow];
return _keyWindow;
}

this code work for me.
我改成上面的代码后就成功了，不过没有测试对其它功能的影响。理论上没有什么副作用。

[hackiftekhar]

Can you provide me sample app which demonstrate this issue. So I will be able to understand what exactly the issue was and able to solve it universally.

[hackiftekhar]

Fixed