在肖像和风景之间切换

Question

我拍摄了两个视图，一个是肖像和风景，我希望切换视图旋转我使用下面的代码，但它无法正常工作，我可能知道我哪里出错了，因为我是iphone开发的新手。我有我没有在ViewDidLoad方法中实现任何东西，我应该在那里实现任何东西吗？

- (BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight) {
        self.portrait.hidden = YES;
        self.landscape.hidden = NO;
    } else  {
        self.portrait.hidden = NO;
        self.landscape.hidden =YES;
    }

    return YES; 
}

Answer 1

我在两个视图中显示图像一个水平一个，一个垂直....

在ViewController.m中： -

@interface OrientationTutorialViewController : UIViewController 
{

    IBOutlet UIView *portraitView;
    IBOutlet UIView *landscapeView;

}

@property (nonatomic, retain) IBOutlet UIView *portraitView;
@property (nonatomic, retain) IBOutlet UIView *landscapeView;


@end

IN .h： -

@implementation OrientationTutorialViewController

@synthesize portraitView, landscapeView;


- (void)viewDidLoad 
{
    [super viewDidLoad];

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

}

- (void) orientationChanged:(id)object
{  
    UIInterfaceOrientation interfaceOrientation = [[object object] orientation];

    if (interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) 
    {
        self.view = self.portraitView;
    } 
    else 
    {
        self.view = self.landscapeView;
    }
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{
    return YES;
}



- (void)dealloc 
{
    [super dealloc];
}

@end

希望我的答案能帮助你...如果不是请告诉我你的身份我将发送你的项目。

Answer 2

支持定位功能

-(Bool)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation    {
     return YES;

 }

现在要在旋转时执行操作，您必须使用以下功能

由于您有两个名为landscape和portrait的视图，请确保您已正确链接了引用插座

    -(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{


if (toInterfaceOrientation == UIInterfaceOrientationPortrait || toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) 
{

    self.view = portrait;



}
else
{
    self.view = landscape;


}

}

Answer 3

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    if(interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight) {
        self.portrait.hidden = YES;
        self.landscape.hidden = NO;

        return YES;
    }
    else {
        self.portrait.hidden = NO;
        self.landscape.hidden = YES;

        return YES;
    }
}