iphone - 如何从横向视图（iPad）显示纵向视图？

Question

我正在为 iPhone 编写应用程序。它工作正常，但在 iPad 中无法正确缩放。我有横向视图，并且以编程方式进行。然后我正在推动。然后它显示了这一点：

我希望它旋转和全屏。请帮我。提前致谢。

Answer 1

您可以在 ios6 或 ios5 中检查和实现 Orientation，如下面的代码和信息 Put Method in Each Class：

-(BOOL)shouldAutorotate
{
    return YES;
}
-(NSUInteger)supportedInterfaceOrientations
{

    return UIInterfaceOrientationMaskAll;
}

并每次检查ViewWillApear设备方向，例如：-

- (void)willRotateToOrientation:(UIInterfaceOrientation)newOrientation {
        if (UIDeviceOrientationIsLandscape([UIDevice currentDevice].orientation))
        {
            if (newOrientation == UIInterfaceOrientationLandscapeLeft || newOrientation == UIInterfaceOrientationLandscapeRight) {

              //set your landscap View Frame
                [self supportedInterfaceOrientations];

            }



        }
        else if (UIDeviceOrientationIsPortrait([UIDevice currentDevice].orientation))
        {
            if(newOrientation == UIInterfaceOrientationPortrait || newOrientation == UIInterfaceOrientationPortraitUpsideDown){
      //set your Potrait View Frame
                [self supportedInterfaceOrientations];

            }
        }
        // Handle rotation
    }


    -(void)viewWillAppear:(BOOL)animated
    {
        [self willRotateToOrientation:[[UIDevice currentDevice] orientation]];  
        [super viewWillAppear:YES];
    }

更新

很可能人们使用下面这样的检查设备orientation将这条线放入ViewWillApear：-

[[UIApplication sharedApplication] statusBarOrientation];
    [[UIDevice currentDevice] orientation];
    [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(deviceRotated:) name:UIDeviceOrientationDidChangeNotification object:nil];

和

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

    UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
    if(orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight)
    {
        //Do your stuff for landscap
    }
    else if(orientation == UIInterfaceOrientationPortrait || toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
    {
      //Do your stuff for potrait

    }

}

在 IOS5 中，你可以像下面这样做：

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight) {


        return YES;
    }
    else
    {
        return NO;
    }
}

如果您希望支持所有方向，您只需返回 YES，例如：-

 -(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

            return YES;  
    }