不叫（委託設置爲self）的UIImagePickerController委託方法

我有一個問題，即：不叫（委託設置爲self）的UIImagePickerController委託方法

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {}

只能被稱爲用相機，而不是當我試圖通過用戶的瀏覽照片，選擇一個圖像。

這裏是爲UIImagePicker代表我的初始化代碼：

-(void)viewDidLoad{ 

    [self initImagePicker]; 

} 


-(void)initImagePicker{ 
    DLog(@""); 

    self.imagePickerController.delegate = self; 

} 



- (void)setupImagePicker:(UIImagePickerControllerSourceType)sourceType 
{ 
    self.imagePickerController.sourceType = sourceType; 

    if (sourceType == UIImagePickerControllerSourceTypeCamera) 
    { 
     // user wants to use the camera interface 
     // 
     self.imagePickerController.showsCameraControls = NO; 

     if ([[self.imagePickerController.cameraOverlayView subviews] count] == 0) 
     { 
      // setup our custom overlay view for the camera 
      // 
      // ensure that our custom view's frame fits within the parent frame 
      CGRect overlayViewFrame = self.imagePickerController.cameraOverlayView.frame; 

      CGRect newFrame = CGRectMake(0.0,CGRectGetHeight(overlayViewFrame)-15.0,CGRectGetWidth(overlayViewFrame),15.0); 

      self.view.frame = newFrame; 
      [self.imagePickerController.cameraOverlayView addSubview:self.view]; 
      [self.view bringSubviewToFront:self.view]; 
     } 
    } 
}

然後在我的根類，一來就是授人以類UIImagePicker是委託給UIImagePicker：

#pragma mark - 
#pragma mark Toolbar Actions 

- (void)showImagePicker:(UIImagePickerControllerSourceType)sourceType 
{ 




    if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) 
    { 
     // camera is not on this device, don't show the camera button 
     NSMutableArray *toolbarItems = [NSMutableArray arrayWithCapacity:self.myToolbar.items.count]; 
     [toolbarItems addObjectsFromArray:self.myToolbar.items]; 
     [toolbarItems removeObjectAtIndex:2]; 
     [self.myToolbar setItems:toolbarItems animated:NO]; 
    } 

    if ([UIImagePickerController isSourceTypeAvailable:sourceType]) 
    { 


     self.overlayViewController = [[UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil] instantiateViewControllerWithIdentifier:@"OverlayViewController"]; 
     self.overlayViewController.delegate = self; 

     self.overlayViewController.imagePickerController = [[UIImagePickerController alloc] init]; 
     [self.overlayViewController setupImagePicker:sourceType]; 
     [self presentModalViewController:self.overlayViewController.imagePickerController animated:YES]; 
    } 
}

我知道這是一個SO問題的很多代碼，但對於實現這個類的經驗豐富的人來說，我做錯了什麼？

對我來說，這條線是奇怪的：

self.overlayViewController.imagePickerController = [[UIImagePickerController alloc] init];

我從來沒有分配和初始化前的所有者以外的財產。這是問題嗎？

來源

2013-02-17 stackOverFlew

從哪裏調用'setupImagePicker'和'showImagePicker' – 2013-02-17 12:05:23

在調用showImagePicker時出現的UIImagePicker委託視圖控制器中調用setUpImagePicker。 – stackOverFlew 2013-02-17 12:07:14

找到修復：

需要補充：

self.overlayViewController.imagePickerController.delegate = self.overlayViewController;

後：

self.overlayViewController.imagePickerController = [[UIImagePickerController alloc] init];

來源

2013-02-17 12:04:36 stackOverFlew

stackOverflow你做了同樣的事情@tobiasbayer建議你以前做，但你沒有標記他的答案是正確的！偉大的方式來賺取積分！ – 2017-01-19 05:11:10

我認爲你設置的代表太早（initImagePicker在viewDidLoad）。 self.imagePickerController可能沒有。您應該在創建UIImagePickerController之後設置委託。

來源

2013-02-17 12:04:29 tobiasbayer

!!大聲笑你可能打敗了我。我剛剛發佈了我的答案，請接受修改並接受您的回答。 – stackOverFlew 2013-02-17 12:05:01

集UIImagePickerDelegate和UINavigationControllerDelegate中的.h文件中與@interface。

像

@interface class : UIView <UIImagePickerDelegate , UINavigationControllerDelegate>

用的UIImagePickerController對象設置自委託過，

imgPickerController.delegate = self;

希望它可以幫助你。

來源

2013-02-17 17:44:06

不叫（委託設置爲self）的UIImagePickerController委託方法

回答

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