DidAnimateFirsthalfofrotationInterfaceOrientation iOS5更换

DidAnimateFirsthalfofrotationInterfaceOrientation

在iOS 5.0中被弃用。但是，我希望在我的应用程序中使用此方法。我正在使用苹果在iOS开发中心提供的示例代码，project name

AlternateViews

。我希望应用程序在

景观视图中淡入时旋转
肖像视图
。这可以在iOS 5中实现，还是这一功能永远消失了

肖像视图
当前调用：

[self-presentModalViewController:self.landscapeViewController动画：是]

当
landscapeView
在
init
方法中的代码中调用此函数时：

self.modaltransationstyle=uimodaltransationstyle

所有动画似乎都是在以下视图控制器中完成的。m：

#import "PortraitViewController.h"
#import "LandscapeViewController.h"

@implementation PortraitViewController

@synthesize landscapeViewController;

- (void)viewDidLoad
{
    self.view.backgroundColor = [UIColor colorWithRed:197.0/255.0 green:204.0/255.0 blue:211.0/255.0 alpha:1.0];

    LandscapeViewController *viewController = [[LandscapeViewController alloc]
                                                    initWithNibName:@"LandscapeView" bundle:nil];
    self.landscapeViewController = viewController;
    [viewController release];

    [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(orientationChanged:)
                                                    name:UIDeviceOrientationDidChangeNotification object:nil];
}

- (void)viewDidUnload
{
    self.landscapeViewController = nil;
}

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];

    [landscapeViewController release];

    [super dealloc];
}

- (void)orientationChanged:(NSNotification *)notification
{
    // We must add a delay here, otherwise we'll swap in the new view
    // too quickly and we'll get an animation glitch
    [self performSelector:@selector(updateLandscapeView) withObject:nil afterDelay:0];
}

- (void)updateLandscapeView
{
    UIDeviceOrientation deviceOrientation = [UIDevice currentDevice].orientation;
    if (UIDeviceOrientationIsLandscape(deviceOrientation) && !isShowingLandscapeView)
    {
        [self presentModalViewController:self.landscapeViewController animated:YES];
        isShowingLandscapeView = YES;
    }
    else if (deviceOrientation == UIDeviceOrientationPortrait && isShowingLandscapeView)
    {
        [self dismissModalViewControllerAnimated:YES];
        isShowingLandscapeView = NO;
    }    
}

// override to allow orientations other than the default portrait orientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait); // support only portrait
}

@end

#import "PortraitViewController.h"
#import "LandscapeViewController.h"

@implementation PortraitViewController

@synthesize landscapeViewController;

- (void)viewDidLoad
{   
    LandscapeViewController *viewController = [[LandscapeViewController alloc]
                                                    initWithNibName:@"LandscapeView" bundle:nil];
    self.landscapeViewController = viewController;
    [viewController release];
    NSLog(@"Portrait viewDidLoad");
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];

    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackTranslucent animated:NO];
}

- (void)viewDidUnload
{
    self.landscapeViewController = nil;
}

- (void)dealloc
{   
    [landscapeViewController release];

    [super dealloc];
}

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    if (toInterfaceOrientation == UIInterfaceOrientationPortrait) {
        NSLog(@"Portrait-willAnimateRotationToInterfaceOrientation Portrait");
    } else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft || toInterfaceOrientation == UIInterfaceOrientationLandscapeRight) {
        NSLog(@"Portrait-willAnimateRotationToInterfaceOrientation Landscape");
    }
    [self performSelector:@selector(updateLandscapeView) withObject:nil afterDelay:0];

}

- (void)updateLandscapeView
{
    UIDeviceOrientation deviceOrientation = [UIDevice currentDevice].orientation;
    if (UIDeviceOrientationIsLandscape(deviceOrientation) && !isShowingLandscapeView)
    {
        NSLog(@"Portrait-present Landscape");
        [self presentModalViewController:self.landscapeViewController animated:YES];
        isShowingLandscapeView = YES;
    }
    else if (deviceOrientation == UIDeviceOrientationPortrait && isShowingLandscapeView)
    {
        NSLog(@"Portrait-dismiss Landscape");
        [self dismissModalViewControllerAnimated:YES];
        isShowingLandscapeView = NO;
    }    
}

// override to allow orientations other than the default portrait orientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    if (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
        return NO;
    else
        return YES;
}

@end

下面是我当前的实现文件，它失败得很惨。
视图控制器。m：

#import "PortraitViewController.h"
#import "LandscapeViewController.h"

@implementation PortraitViewController

@synthesize landscapeViewController;

- (void)viewDidLoad
{
    self.view.backgroundColor = [UIColor colorWithRed:197.0/255.0 green:204.0/255.0 blue:211.0/255.0 alpha:1.0];

    LandscapeViewController *viewController = [[LandscapeViewController alloc]
                                                    initWithNibName:@"LandscapeView" bundle:nil];
    self.landscapeViewController = viewController;
    [viewController release];

    [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(orientationChanged:)
                                                    name:UIDeviceOrientationDidChangeNotification object:nil];
}

- (void)viewDidUnload
{
    self.landscapeViewController = nil;
}

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];

    [landscapeViewController release];

    [super dealloc];
}

- (void)orientationChanged:(NSNotification *)notification
{
    // We must add a delay here, otherwise we'll swap in the new view
    // too quickly and we'll get an animation glitch
    [self performSelector:@selector(updateLandscapeView) withObject:nil afterDelay:0];
}

- (void)updateLandscapeView
{
    UIDeviceOrientation deviceOrientation = [UIDevice currentDevice].orientation;
    if (UIDeviceOrientationIsLandscape(deviceOrientation) && !isShowingLandscapeView)
    {
        [self presentModalViewController:self.landscapeViewController animated:YES];
        isShowingLandscapeView = YES;
    }
    else if (deviceOrientation == UIDeviceOrientationPortrait && isShowingLandscapeView)
    {
        [self dismissModalViewControllerAnimated:YES];
        isShowingLandscapeView = NO;
    }    
}

// override to allow orientations other than the default portrait orientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait); // support only portrait
}

@end

#import "PortraitViewController.h"
#import "LandscapeViewController.h"

@implementation PortraitViewController

@synthesize landscapeViewController;

- (void)viewDidLoad
{   
    LandscapeViewController *viewController = [[LandscapeViewController alloc]
                                                    initWithNibName:@"LandscapeView" bundle:nil];
    self.landscapeViewController = viewController;
    [viewController release];
    NSLog(@"Portrait viewDidLoad");
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];

    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackTranslucent animated:NO];
}

- (void)viewDidUnload
{
    self.landscapeViewController = nil;
}

- (void)dealloc
{   
    [landscapeViewController release];

    [super dealloc];
}

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    if (toInterfaceOrientation == UIInterfaceOrientationPortrait) {
        NSLog(@"Portrait-willAnimateRotationToInterfaceOrientation Portrait");
    } else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft || toInterfaceOrientation == UIInterfaceOrientationLandscapeRight) {
        NSLog(@"Portrait-willAnimateRotationToInterfaceOrientation Landscape");
    }
    [self performSelector:@selector(updateLandscapeView) withObject:nil afterDelay:0];

}

- (void)updateLandscapeView
{
    UIDeviceOrientation deviceOrientation = [UIDevice currentDevice].orientation;
    if (UIDeviceOrientationIsLandscape(deviceOrientation) && !isShowingLandscapeView)
    {
        NSLog(@"Portrait-present Landscape");
        [self presentModalViewController:self.landscapeViewController animated:YES];
        isShowingLandscapeView = YES;
    }
    else if (deviceOrientation == UIDeviceOrientationPortrait && isShowingLandscapeView)
    {
        NSLog(@"Portrait-dismiss Landscape");
        [self dismissModalViewControllerAnimated:YES];
        isShowingLandscapeView = NO;
    }    
}

// override to allow orientations other than the default portrait orientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    if (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
        return NO;
    else
        return YES;
}

@end

LandscapeViewController.m

#import "LandscapeViewController.h"

@implementation LandscapeViewController

// the designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])
    {
        self.wantsFullScreenLayout = YES; // we want to overlap the status bar.

        // when presented, we want to display using a cross dissolve
        self.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
    }
    return self;
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];

    oldStatusBarStyle = [[UIApplication sharedApplication] statusBarStyle];
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackTranslucent animated:NO];
    NSLog(@"Landscape viewWillAppear");
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];

    [[UIApplication sharedApplication] setStatusBarStyle:oldStatusBarStyle animated:NO];    
}

// override to allow orientations other than the default portrait orientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // return YES for supported orientations
    if (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
        return NO;
    else
        return YES;
    //return UIInterfaceOrientationIsLandscape(interfaceOrientation);
}

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    if (toInterfaceOrientation == UIInterfaceOrientationPortrait) {
        NSLog(@"Landscape-willAnimateRotationToInterfaceOrientation Portrait");
        [self dismissModalViewControllerAnimated:YES];
    } else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft || toInterfaceOrientation == UIInterfaceOrientationLandscapeRight) {
        NSLog(@"Landscape-willAnimateRotationToInterfaceOrientation Landscape");

    }
}


@end

在Apple的“处理视图旋转”部分中，您会发现这一有用的段落：

如果要在方向更改期间执行自定义动画，
您可以通过以下两种方式之一实现。方向变化通常发生在
两个步骤，通知发生在开头、中间和结尾
旋转的终点。但是，在iOS 3.0中，添加了对
在一个步骤中执行方向更改。使用一步法
方向变化往往比旧的两步过程更快
并且通常推荐用于任何新代码

若要为方向更改添加动画，请替代
方法和执行
你的动画在那里

你能重写
WillAnimateRotationInterfaceOrientation:
方法来制作你的动画吗？
我相信这会管用，但是我是一个新手程序员，所以我可能需要更多的帮助。我想您应该让肖像视图接受所有旋转，这样它将旋转到横向，然后使用
将动画设置为旋转的第二个一半，从InterfaceOrientation:duration
到
presentModalViewController:self.landscapeViewController
。这是正确的逻辑还是我会使用
WillAnimateRotationInterfaceOrientation
并在该方法中告诉肖像视图旋转，然后
呈现ModalviewController:self.landscapeViewController
？如果您编辑问题添加的代码运行良好，为什么不从WillAnimateRotationInterfaceOrientation调用你的
UpdateLandCapeView
方法呢。我根本不会使用InterfaceOrientation的
*half rotationfromInterfaceOrientation
方法，因为它们已被弃用，可能会在iOS 6或iOS 7中消失。在任何情况下，您所寻找的功能都不会“永远”消失。。。它只是被改成更能证明未来。您应该能够修改您的工作代码以利用新的API。我同意您的建议，从
WillAnimateRotationInterfaceOrientation
调用了
UpdateLandCapeView
方法。然而，我还必须向LandscapeView添加代码，使其消失，因为我只能再依赖通知了。当我运行应用程序时，我认为它工作得很好，发现我只会让事情变得更糟。景观视图不会淡入淡出，而是呈对角滑动，视图有时会在不应该的时候显示。你能再帮我一点忙吗？（上面贴了代码）非常感谢。