UIPickerController留下黑色底欄

-1

我使用下面的代碼與它的覆蓋視圖一起顯示UIPickerController：UIPickerController留下黑色底欄

-(void) viewDidLoad{ 
    self.overlayView = [[OverlayViewController alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 
    self.overlayView.delegate = self; 
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) 
    { 
     imagePickerController = [[UIImagePickerController alloc] init]; 
     imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera; 
     imagePickerController.modalPresentationStyle = UIModalPresentationFullScreen; 
     imagePickerController.cameraOverlayView.frame=self.view.frame; 
     imagePickerController.showsCameraControls = NO; 
     imagePickerController.navigationBarHidden = YES; 
     imagePickerController.toolbarHidden = YES; 
    //imagePickerController.cameraViewTransform = CGAffineTransformScale(imagePickerController.cameraViewTransform, 1.0, 1.3); 
     imagePickerController.delegate = self.overlayView; 
     // as a delegate we will be notified when pictures are taken and when to dismiss the image picker 

     [self.view addSubview:imagePickerController.view]; 
     imagePickerController.cameraOverlayView =self.overlayView.view; 
    } else { 
     [self.view addSubview:self.overlayView.view]; 

    } 
}

但是屏幕保持iPhone在畫像時在底部顯示一個黑條。您可能會在所附的屏幕截圖中看到橫幅中沒有橫條。如何解決它？

來源

2016-01-04 Fabrizio Bartolomucci

看起來overlayView是以編程方式創建的，您需要調整overlayView的模式（Scale to Fill，Aspect Fit，..）或調整攝像頭視圖的大小。在您的肖像截圖中，相機視圖適合主視圖，並且由於相機（4：3）和iPhone屏幕（16：9）的高寬比不同，您會看到黑條。在您的橫向屏幕截圖中，似乎縮放了相機視圖以填充屏幕，但圖像在頂部和底部被裁剪。 – iCode

那我應該怎麼做呢？我不能依靠未來設備的最終尺寸來正確地加熱屏幕......是不是有辦法填滿屏幕，所以它是？ –

爲overlayView我坦率地說，沒有其他方式來創建它，但編程。甚至連UIImagePicker控制器都沒有Storyboard對應物，關於它的overlayView怎麼說？！ –

我想這個問題：How to get the custom overlay for UIImagePicker camera to be full screen in iOS 7?是大約相同的問題，你可以在那裏找到答案。

來源

2016-01-04 21:19:32 iCode

我實現了其作爲線程建議在故事板插入後的viewController：

-(void) viewDidLoad{ 
    self.overlayView = [[OverlayViewController alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 
    self.overlayView.delegate = self; 
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) 
    { 
     imagePickerController = [[UIImagePickerController alloc] init]; 
     imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera; 
     imagePickerController.modalPresentationStyle = UIModalPresentationFullScreen; 
     imagePickerController.cameraOverlayView.frame=self.view.frame; 
     imagePickerController.showsCameraControls = NO; 
     imagePickerController.navigationBarHidden = YES; 
     imagePickerController.toolbarHidden = YES; 

     //imagePickerController.cameraViewTransform = CGAffineTransformScale(imagePickerController.cameraViewTransform, 1.0, 1.3); 
     imagePickerController.delegate = self.overlayView; 
     // as a delegate we will be notified when pictures are taken and when to dismiss the image picker 
     self.overlayView=[self.storyboard instantiateViewControllerWithIdentifier:@"OverlayViewController"]; 
     [self.view addSubview:imagePickerController.view]; 
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(showSlider) name:@"showSlider" object:nil]; 
     imagePickerController.cameraOverlayView =self.overlayView.view; 
     CGSize screenSize = [[UIScreen mainScreen] bounds].size; 
     float cameraAspectRatio = 4.0/4.0; //! Note: 4.0 and 4.0 works 
     float imageWidth = floorf(screenSize.width * cameraAspectRatio); 
     float scale = ceilf((screenSize.height/imageWidth) * 10.0)/10.0; 
     self.imagePickerController.cameraViewTransform = CGAffineTransformMakeScale(scale, scale); 
     } else { 
     [self.view addSubview:self.overlayView.view]; 
    } 
}

而事實上事情的作品扭捏cameraAspectRatio到4.0，4.0後的罰款。然而，當在風景中展示應用時，圖像和控制會逆轉。這就是我的門把手所顯示的。此外，當我將iPhone指向上方時，圖像橫向移動，反之亦然。它可能是固定的或我需要放棄景觀選項？

來源

2016-01-05 11:25:32

UIPickerController留下黑色底欄

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