objective-c - 使用 Objective C 在 iOS8 中分离横向和纵向视图

Question

我使用下面的代码在 iOS7 中有单独的横向和纵向视图：

-(void)didRotateFromInterfaceOrientation:    (UIInterfaceOrientation)fromInterfaceOrientation {
    if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_7_1) {

    CGRect currentBounds=self.view.bounds;

    if (iPadInt==0) {
        if (self.interfaceOrientation==UIInterfaceOrientationLandscapeRight) {
            self.view=self.landscapeQuestionView;
            self.view.transform=CGAffineTransformMakeRotation((kDeg2Rad)*(90));
        } else if (self.interfaceOrientation==UIInterfaceOrientationLandscapeLeft) {
            self.view=self.landscapeQuestionView;
            self.view.transform=CGAffineTransformMakeRotation((kDeg2Rad)*(-90));
        } else if (self.interfaceOrientation==UIInterfaceOrientationPortrait) {
            self.view=self.portraitQuestionView;
            self.view.transform=CGAffineTransformMakeRotation(0);
        } else if (self.interfaceOrientation==UIInterfaceOrientationPortraitUpsideDown) {
            self.view=self.portraitQuestionView;
            self.view.transform=CGAffineTransformMakeRotation((kDeg2Rad)*(180));
        } self.view.bounds=currentBounds;
    } else if (iPadInt==1) {
        if (self.interfaceOrientation==UIInterfaceOrientationLandscapeRight) {
            self.view=self.iPadLandscapeQuestionView;
            self.view.transform=CGAffineTransformMakeRotation((kDeg2Rad)*(90));
        rotationInt=90;
        } else if (self.interfaceOrientation==UIInterfaceOrientationLandscapeLeft) {
            self.view=self.iPadLandscapeQuestionView;
            self.view.transform=CGAffineTransformMakeRotation((kDeg2Rad)*(-90));
             rotationInt=90;
        } else if (self.interfaceOrientation==UIInterfaceOrientationPortrait) {
            self.view=self.iPadPortraitQuestionView;
            self.view.transform=CGAffineTransformMakeRotation(0);
            rotationInt=0;
        } else if (self.interfaceOrientation==UIInterfaceOrientationPortraitUpsideDown) {
            self.view=self.iPadPortraitQuestionView;
            self.view.transform=CGAffineTransformMakeRotation((kDeg2Rad)*(180));
            rotationInt=0;
        } self.view.bounds=currentBounds;
    }
}

我知道我应该在 iOS8 中使用 viewWillTransitionToSize 方法，但我不知道如何在该方法中获取这些不同的视图。提前感谢您的帮助。

Answer 1

这里有一个话题：Rotation methods deprecated, equivalent of 'didRotateFromInterfaceOrientation'?

我认为在你的情况下你可以使用viewWillTransitionToSize:像这样：

-(void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
    [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context)
     {
         //get orientation
         UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
         //check orientation
         if (orientation==UIInterfaceOrientationPortrait)
         {
             NSLog(@"portrait");
         }
         else if(orientation==UIInterfaceOrientationPortraitUpsideDown)
         {
             NSLog(@"upside-down");
         }
         else if(orientation==UIInterfaceOrientationLandscapeRight)
         {
             NSLog(@"landscape right");
         }
         else if(orientation==UIInterfaceOrientationLandscapeLeft)
         {
             NSLog(@"landscape left");
         }
     } completion:^(id<UIViewControllerTransitionCoordinatorContext> context)
     {

     }];
}