在iphone中使用DEFshootingComposeViewController的白色背景問題sdk

Question

我正在使用DEFshootingComposeViewController在Facebook上分享。

我在一個視圖控制器有問題，它將視圖的背景顏色更改爲白色而不是透明的黑色背景。

Answer 1

我設法解決了這個問題。您需要取消註釋下列文件中的代碼： 「DEFacebookComposeViewController.h」

只需更換下面的代碼：

• （無效）viewWillAppear中：（BOOL）動畫 { [超級viewWillAppear中：動畫]。

  // Take a snapshot of the current view, and make that our background after our view animates into place. 
  // This only works if our orientation is the same as the presenting view. 
  // If they don't match, just display the gray background. 
      if (self.interfaceOrientation == self.fromViewController.interfaceOrientation) { 
  //  UIImage *backgroundImage = [self captureScreen]; 
  //  self.backgroundImageView = [[[UIImageView alloc]    initWithImage:backgroundImage] autorelease]; 
      } 
      else { 
      //   self.backgroundImageView = [[[UIImageView alloc] initWithFrame:self.fromViewController.view.bounds] autorelease]; 
  } 
       // self.backgroundImageView.autoresizingMask = UIViewAutoresizingNone; 
  // self.backgroundImageView.alpha = 0.0f; 
  // self.backgroundImageView.backgroundColor = [UIColor lightGrayColor]; 
  // [self.view insertSubview:self.backgroundImageView atIndex:0]; 
  
  // Now let's fade in a gradient view over the presenting view. 
      self.gradientView = [[[DEFacebookGradientView alloc] initWithFrame:[UIApplication sharedApplication].keyWindow.bounds] autorelease]; 
      self.gradientView.autoresizingMask = UIViewAutoresizingNone; 
      self.gradientView.transform = self.fromViewController.view.transform; 
      self.gradientView.alpha = 0.0f; 
      self.gradientView.center = [UIApplication sharedApplication].keyWindow.center; 
      [self.fromViewController.view addSubview:self.gradientView]; 
      [UIView animateWithDuration:0.3f 
        animations:^ { 
         self.gradientView.alpha = 1.0f; 
        }];  
  
      self.previousStatusBarStyle = [UIApplication sharedApplication].statusBarStyle; 
      [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackOpaque animated:YES]; 
  
      [self updateFramesForOrientation:self.interfaceOrientation]; 
  
       } 
  

有了這個代碼：

- (void)viewWillAppear:(BOOL)animated 
    { 
     [super viewWillAppear:animated]; 

    // Take a snapshot of the current view, and make that our background after our view animates into place. 
    // This only works if our orientation is the same as the presenting view. 
    // If they don't match, just display the gray background. 
if (self.interfaceOrientation == self.fromViewController.interfaceOrientation) { 
    UIImage *backgroundImage = [self captureScreen]; 
    self.backgroundImageView = [[[UIImageView alloc] initWithImage:backgroundImage] autorelease]; 
} 
else { 
    self.backgroundImageView = [[[UIImageView alloc] initWithFrame:self.fromViewController.view.bounds] autorelease]; 
} 
self.backgroundImageView.autoresizingMask = UIViewAutoresizingNone; 
self.backgroundImageView.alpha = 0.0f; 
self.backgroundImageView.backgroundColor = [UIColor lightGrayColor]; 
[self.view insertSubview:self.backgroundImageView atIndex:0]; 

    // Now let's fade in a gradient view over the presenting view. 
self.gradientView = [[[DEFacebookGradientView alloc] initWithFrame:[UIApplication sharedApplication].keyWindow.bounds] autorelease]; 
self.gradientView.autoresizingMask = UIViewAutoresizingNone; 
self.gradientView.transform = self.fromViewController.view.transform; 
self.gradientView.alpha = 0.0f; 
self.gradientView.center = [UIApplication sharedApplication].keyWindow.center; 
[self.fromViewController.view addSubview:self.gradientView]; 
[UIView animateWithDuration:0.3f 
       animations:^ { 
        self.gradientView.alpha = 1.0f; 
       }];  

self.previousStatusBarStyle = [UIApplication sharedApplication].statusBarStyle; 
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackOpaque animated:YES]; 

[self updateFramesForOrientation:self.interfaceOrientation]; 

    } 

希望這將有助於其他，如果他們發現類似的問題。

謝謝。

Answer 2

無需更改代碼的任何地方，只要有

appDelegate.window.rootViewController.modalPresentationStyle = UIModalPresentationCurrentContext; 

將這段代碼中實現模塊

self.modalPresentationStyle = UIModalPresentationCurrentContext; 

和你的工作將b完成。