從UITabBarController中解除UIImagePickerController

Question

我有一個選項卡欄應用程序，其中一個選項卡使用導航控制器來移動一系列視圖。在最後一個視圖中，有一個按鈕用於添加一張照片，該照片呈現一個UIImagePickerController。到目前爲止，這麼好 - 但是當我完成選取圖像或取消操作時，先前的視圖已加載，但沒有標籤欄。我敢肯定，我錯過了一些基本的東西，但是如何正確發佈UIImagePickerController的任何建議都將不勝感激。代碼如下：

ImagePickerViewController *aController = [[ImagePickerViewController alloc];    initWithNibName:@"ImagePickerViewController" bundle:[NSBundle mainBundle]]; 
[self presentModalViewController:aController animated:YES]; 
[aController release]; 

//viewDidLoad 
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease]; 
imagePickerController = [[UIImagePickerController alloc] init]; 
imagePickerController.delegate = self; 

if([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera]){ 
     imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera; 
} else { 
     imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; 
} 

[window addSubview:imagePickerController.view]; 

//ImagePickerViewController imagePickerControllerDidCancel - FinalViewController is the last view in the stack controlled by a navigation controller which contains the button to present the UIImagePickerController 

[picker dismissModalViewControllerAnimated:YES]; 
FinalViewController *aController = [[FinalViewController alloc initWithNibName:@"FinalViewController" bundle:[NSBundle mainBundle]]; 
[picker presentModalViewController:aController animated:YES]; 
[aController release]; 

Answer 1

您不需要添加選擇器視圖作爲窗口的子視圖。 當用戶按下該按鈕時，執行類似於以下snapPicture方法東西：

- (IBAction) snapPicture{ 


      UIImagePickerController *ipc = [[UIImagePickerController alloc] init]; 
      // Set up the source 
      if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){ 
       ipc.sourceType = UIImagePickerControllerSourceTypeCamera; 
       ipc.allowsEditing = NO; 
      } 
      else { 
        ipc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; 
       } 

      ipc.delegate = self; 
      [self presentModalViewController:ipc animated:YES]; 
      [ipc release]; 


} 

然後，實現了拾取器委託方法。在這裏，我只是介紹其中的一個來展示如何解僱picker。

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)imagePicker 
{ 

    [[imagePicker parentViewController] dismissModalViewControllerAnimated:YES]; 

}