HomeView(Support only portrait mode) | | V View1(Support all orientation) | | V View2(Support all orientation)
问题：
当我通过调用popToRootViewController方法从View2(横向模式)返回到HomeView时,它没有调用App_Delegate的supportedInterfaceOrientationsForWindow方法并显示
HomeView在横向模式下.
图片：
注意 ：
当我通过调用popToRootViewController方法从View1(横向模式)返回到HomeView时,同样的事情不会发生
它将调用supportedInterfaceOrientationsForWindow并且所有工作都很棒.
如果我在iOS7中使用XCode6运行app,一切都很棒.
我在下面阅读了这个问题,但它对我没有帮助.
How to maintain presenting view controller’s orientation when dismissing modal view controller?
在上面的链接亚光表示iOS8停止支持friezing方向,但我没有在苹果文档中找到它
如果您有关于此更改的任何参考链接,请分享.
题 ：
1]为什么委托方法supportedInterfaceOrientationsForWindow没有调用.
2]是否可以使一个视图具有支持单一方向,而所有其他视图将支持所有方向.
谢谢
问题：
我在supportedInterfaceOrientationsForWindow中有以下代码.
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
// Suport only portrait mode for home screen
if([self.navigationController.topViewController isKindOfClass:[ViewHome class]])
{
return UIInterfaceOrientationMaskPortrait;
}
return UIInterfaceOrientationMaskAll;
}
但是委托方法supportedInterfaceOrientationsForWindow没有被调用
当使用popToRootViewControllerAnimated方法时,堆栈中有两个以上的Cotnrollersexists视图.
方案：
第1步：创建导航控制器的子类.
Step2：覆盖方法popToRootViewControllerAnimated并编写如下代码
//覆盖超类方法popToRootViewControllerAnimated.
-(NSArray*)popToRootViewControllerAnimated:(BOOL)animated
{
// Only for iOS8 and above
if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_7_1)
{
// Array which will contaimn all poped view controllers object.
NSMutableArray *popedControllersArray = [[NSMutableArray alloc] init];
// Tmp created controllers object
NSArray *controllers;
// Hold first view cotnrollers.
UIViewController *firstViewController = [self.viewControllers objectAtIndex:1];
// Pop to first view controllers with no animation.
controllers = [super popToViewController:firstViewController animated:NO];
// Add poped view cotnrollers objects to the array.
[popedControllersArray addObjectsFromArray:controllers];
// Pop to root view controller with animation
[super popViewControllerAnimated:YES];
// Add first view controller object as it is poped by above line.
[popedControllersArray addObject:firstViewController];
// return poped view controllers object.
return popedControllersArray;
}
else
{
// Called super view popToRootViewControllerAnimated method and return popped
// view controllers array.
return [super popToRootViewControllerAnimated:animated];
}
}
如有任何意见,请随意填写并提出任何问题.
