Event willAnimateRotationToInterfaceOrientation isn#39;t calling(事件 willAnimateRotationToInterfaceOrientation 没有调用)
本文介绍了事件 willAnimateRotationToInterfaceOrientation 没有调用的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在应用程序上有几个 UIViewController
.但只有其中一个 willAnimateRotationToInterfaceOrientation
事件正在调用.
I have several UIViewController
s on the application. But only on one of them willAnimateRotationToInterfaceOrientation
event is calling.
如何使 willAnimateRotationToInterfaceOrientation
适用于所有可见视图?
How to make willAnimateRotationToInterfaceOrientation
work for all visible views?
推荐答案
RootViewController
:
- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
NSDictionary *userInfo = @{
@"toInterfaceOrientation":@(toInterfaceOrientation),
@"duration":@(duration)};
[[NSNotificationCenter defaultCenter] postNotificationName:@"willAnimateRotationToInterfaceOrientation" object:nil userInfo:userInfo];
}
其他UIViewControllers
:
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(willAnimateRotationToInterfaceOrientation:) name:@"willAnimateRotationToInterfaceOrientation" object:nil];
}
return self;
}
- (void)willAnimateRotationToInterfaceOrientation:(NSNotification *)notification {
UIInterfaceOrientation toOrientation = (UIInterfaceOrientation)[notification.userInfo[@"toOrientation"] intValue];
NSTimeInterval duration = (UIInterfaceOrientation)[notification.userInfo[@"duration"] floatValue];
[self willAnimateRotationToInterfaceOrientation:toOrientation duration:duration];
}
- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation duration:(NSTimeInterval)duration {
// ...
}
- (void)dealloc {
[[NSNotificationCenter defaultCenter] removeObserver:self];
[super dealloc];
}
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本文标题为:事件 willAnimateRotationToInterfaceOrientation 没有调用


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