Question

当我将iDevice表单纵向旋转到横向时，屏幕旋转正常，但我看到黑色边框随之移动，因此它看起来更“真实”。我发现在iOS 7中看到它很尴尬，许多应用程序都破坏了这种行为（如Instagram）。

我想要做的是隐藏那些在旋转设备时看起来完全不必要的黑色边框。如何禁用此标准动画？

Answer 1

在父视图控制器viewdidload方法中添加：

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didRotate:) name:@"UIDeviceOrientationDidChangeNotification" object:nil];

然后添加此方法

- (void) didRotate:(NSNotification *)notification {     

    UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
    if (UIInterfaceOrientationIsLandscape(orientation) && !self.modalViewController) {
        [self presentModalViewController:carouselView animated:YES];
        [Globals sharedGlobals].startedAtLandscape = YES;
    }

    if (UIInterfaceOrientationIsPortrait(orientation) && self.modalViewController) {
    [self dismissModalViewControllerAnimated:YES];    
    [Globals sharedGlobals].startedAtLandscape = NO;
    }
}

然后阻止动画：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    if(UIInterfaceOrientationIsLandscape(interfaceOrientation)) {
        return NO;
    }
    return YES;
}

Answer 2

我发现最佳解决方案是在旋转前关闭动画，并在旋转后将其关闭。

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
                                duration:(NSTimeInterval)duration
{
    ...
    [UIView setAnimationsEnabled:NO];
}

- (void) didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
    ...
    [UIView setAnimationsEnabled:YES];
}

关闭iOS中的默认旋转动画

2 个答案: