iphone - iOS旋转设备无旋转动画

Question

实现类似于 iPhone 的标准 iPod 应用程序中的效果的正确方法是什么 - 当设备旋转到横向模式时， View 更改为封面流，但过渡类型是淡入淡出和不是旋转屏幕？

这就是我加载模态视图的方式:

- (void) willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
    if (UIInterfaceOrientationIsLandscape(toInterfaceOrientation)) {
        carouselView.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
        [self presentModalViewController:carouselView animated:YES];
    }
}

谢谢!

安德鲁斯

Answer 1

后来我发现使用这个方案更稳定:

在父 View Controller (在我的例子中是选项卡 View Controller )viewdidload 方法中添加:

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

然后添加这个方法:

- (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;
    }
}

最后如果你想阻止旋转动画，修改这个方法如下:

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