升级后我的项目是否执行iOS 9.2,我的旧代码已过时
-(UIInterfaceOrientationMask)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
return UIInterfaceOrientationPortrait;
}
我发现了这个丑陋的解决方案,在收到旋转通知后,视图设置旋转(并用动画重新绘制我的视图控制器):
-(void)didRotate:(NSNotification *)notification
{
[UIView animateWithDuration:0 animations:^{
NSNumber *value = [NSNumber numberWithInt:UIInterfaceOrientationPortrait];
[[UIDevice currentDevice] setValue:value forKey:@"orientation"];
}];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(didRotate:)
name:UIDeviceOrientationDidChangeNotification
object:nil];
}
-(void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:YES];
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIDeviceOrientationDidChangeNotification object:nil];
}
如何仅在此视图控制器中锁定方向?
您可以使用下面的委托方法进行方向,它可以适用于使用该代码的类。这 3 行代码足以锁定您的方向。
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
return (UIInterfaceOrientationMaskPortrait);
}
适用于 iOS 9 及更高版本
- 首先确定您的基本视图控制器
- 假设它是一个导航控制器。
导航控制器的属性:
@property (strong, nonatomic) UINavigationController *mainNavigationController;
将上述内容替换为:
@property (strong, nonatomic) MainNavigationContrller *mainNavigationController;
您的 MainNavigationContrller.m 将如下所示:
@interface MainNavigationContrller ()
@end
@implementation MainNavigationContrller
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (BOOL)shouldAutorotate
{
return YES;
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
if(IPHONE)
{
UIViewController *topVC = ((AppDelegate*)[[UIApplication sharedApplication] delegate]).yourNavigationController.topViewController;
if([topVC isKindOfClass:[yourViewController class]])
{
return UIInterfaceOrientationMaskPortrait;
}
}
return UIInterfaceOrientationMaskAll;
}
这样,您无需删除 info.plist 条目,我们只能阻止特定视图的方向。
这对我有用。