获得“使用两阶段旋转动画”用UIImagePickerController警告 [英] Getting "Using two-stage rotation animation" warning with UIImagePickerController

问题描述

我编写了简单的代码来测试UIImagePickerController：

I wrote simple code to test UIImagePickerController:

@implementation ProfileEditViewController

- (void)viewDidLoad {
  [super viewDidLoad];

  photoTaker_ = [[UIImagePickerController alloc] init];
  photoTaker_.delegate = self;
  photoTaker_.sourceType = UIImagePickerControllerSourceTypeCamera;
  photoTaker_.showsCameraControls = NO;
}

- (void)viewDidAppear: (BOOL)animated {
  [self presentModalViewController: photoTaker_ animated: NO];
}

@end

我变得奇怪警告如下：

2010-05-20 17：53：13.838 TestProj [2814：307]使用两阶段旋转动画。要使用更平滑的单阶段动画，此应用程序必须删除两阶段方法实现。
2010-05-20 17：53：13.849 TestProj [2814：307]当旋转多个视图控制器或视图控制器而不是窗口代理时，不支持使用两阶段旋转动画

2010-05-20 17:53:13.838 TestProj[2814:307] Using two-stage rotation animation. To use the smoother single-stage animation, this application must remove two-stage method implementations. 2010-05-20 17:53:13.849 TestProj[2814:307] Using two-stage rotation animation is not supported when rotating more than one view controller or view controllers not the window delegate

知道这是关于什么的吗？非常感谢提前！

Got any idea what this is about? Thanks a lot in advance!

推荐答案

如果您要展示 UIImagePickerController 在另一个 UIViewController 中。因为它不像 UINavigationController 堆栈那样被推送，所以在 UIWindow 级别存在混淆。我不知道警告是否有问题，但要消除警告，您可以执行以下操作：

This message will appear if you are presenting the UIImagePickerController within another UIViewController. Because it isn't pushed like a UINavigationController stack, there is confusion at the UIWindow level. I don't know if the warning is a problem, but to eliminate the warning you can do the following:

// self = a UIViewController  
//  

- (void) showCamera  
{  
    cameraView = [[UIImagePickerController alloc] init];  
    [[[UIApplication sharedApplication] keyWindow] setRootViewController:cameraView];  
    [self presentModalViewController:cameraView animated:NO];  
}   

- (void) removeCamera  
{  
    [[[UIApplication sharedApplication] keyWindow] setRootViewController:self];  
    [self dismissModalViewControllerAnimated:NO];  
    [cameraView release];  
}  

这篇关于获得“使用两阶段旋转动画”用UIImagePickerController警告的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！