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在iOS5.1 和 之前的版本中, 我们通常利用 shouldAutorotateToInterfaceOrientation: 来单独控制某个UIViewController的旋屏方向支持,比如:
- - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
- {
- return (interfaceOrientation == UIInterfaceOrientationPortrait);
- }
但是在iOS6中,这个方法被废弃了,使用无效。
shouldAutorotateToInterfaceOrientation:
Returns a Boolean value indicating whether the view controller
supports the specified orientation. (Deprecated in
iOS 6.0. Override
the supportedInterfaceOrientations andpreferredInterfaceOrientationForPresentation methods
instead.)
实践后会发现,通过supportedInterfaceOrientations的单独控制是无法锁定屏幕的。
-
-(NSUInteger)supportedInterfaceOrientations
-
{
-
return UIInterfaceOrientationMaskPortrait;
-
}
多次实验后总结出控制屏幕旋转支持方向的方法如下:
子类化UINavigationController,增加方法
-
- (BOOL)shouldAutorotate
-
{
-
return self.topViewController.shouldAutorotate;
-
}
-
-
- (NSUInteger)supportedInterfaceOrientations
-
{
-
return self.topViewController.supportedInterfaceOrientations;
-
}
并且设定其为程序入口,或指定为 self.window.rootViewController
随后添加自己的view controller,如果想禁止某个view
controller的旋屏:(支持全部版本的控制)
-
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
-
{
-
return (interfaceOrientation == UIInterfaceOrientationPortrait);
-
}
-
-
-(BOOL)shouldAutorotate
-
{
-
return NO;
-
}
-
-
-(NSUInteger)supportedInterfaceOrientations
-
{
-
return UIInterfaceOrientationMaskPortrait;
-
}
如果想又开启某个view
controller的全部方向旋屏支持:
-
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
-
{
-
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
-
}
-
-
-(NSUInteger)supportedInterfaceOrientations
-
{
-
return UIInterfaceOrientationMaskAllButUpsideDown;
-
}
-
-
-(BOOL)shouldAutorotate
-
{
-
return YES;
-
}
从而实现了对每个view controller的单独控制。
顺便提一下,如果整个应用所有view controller都不支持旋屏,那么干脆:
-
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
-
{
-
return UIInterfaceOrientationMaskPortrait;
-
}
旋转屏的控制 -----,布布扣,bubuko.com
旋转屏的控制 -----
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原文地址:http://www.cnblogs.com/lisaloveyou1900/p/3817642.html