Question

我正在做一个ipad应用程序，其中我说了两个视图 mainview和aboutus视图在启动时，我将mainview放在rootcontroller的视图（添加到窗口的视图）中。主视图上有一个按钮，当按下该按钮时，将从superview中删除主视图并改为使用aboutusview。 aboutus有一个类似的按钮，让我们回到主视图。

现在的问题在于旋转（方向）。当我检测到方向变化时，我更新显示的视图。工作良好。（主视图和aboutusview）但如果我旋转一次任何视图，然后尝试看到第二个视图。似乎第二种观点不是自动调整。

rootViewController中的CODE：

- (void)viewDidLoad
{
    [super viewDidLoad];
 _currentOrientation=UIDeviceOrientationPortrait;
 [self.view addSubview:_mainView];
 [_splashView removeFromSuperview];
}

-(void)viewDidAppear:(BOOL)animated
{
 _currentView = _mainView;
}

-(void)toggleMainPage
{
 [UIView beginAnimations:nil context:nil];
 [UIView setAnimationDuration:.5];
 [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:[self view] cache:YES];
 [_infoView removeFromSuperview];
 [self.view addSubview:_mainView];
 _currentView=_mainView;
 [self transformViewAccordingToOrientation:_currentOrientation];
 [UIView commitAnimations];

}

-(void)toggleAboutPage
{
 [UIView beginAnimations:nil context:nil];
 [UIView setAnimationDuration:.5];
 [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:[self view] cache:YES];
 [_mainView removeFromSuperview];
 [self.view addSubview:_infoView];
 _currentView=_infoView;
 [self transformViewAccordingToOrientation:_currentOrientation];
 [UIView commitAnimations];
}

-(void) transformViewAccordingToOrientation:(UIDeviceOrientation)toInterfaceOrientation
{
 if(toInterfaceOrientation == UIDeviceOrientationPortrait)
 {
  [_mainBtnCustom setBackgroundImage:[UIImage imageNamed:@"main.png"] forState:UIControlStateNormal];
  _infoImage.image =  [UIImage imageNamed:@"about.png"];

 }else
 {

  [_mainBtnCustom setBackgroundImage:[UIImage imageNamed:@"mainr.png"] forState:UIControlStateNormal];
  _infoImage.image =  [UIImage imageNamed:@"aboutr.png"];
 }
}

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
 [self transformViewAccordingToOrientation:toInterfaceOrientation];
}

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
 _currentOrientation = [UIDevice currentDevice].orientation;
 [self transformViewAccordingToOrientation:_currentOrientation];
}


// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{
 return (_currentOrientation !=interfaceOrientation);
}

我做错了什么？

处理交换视图的设备方向问题

0 个答案: