在AppDelegate中以橫向模式顯示UILabel

當推送通知出現時，我在我的appdelegate類中顯示自定義UILabel。它在肖像模式下工作正常，但是當我將設備旋轉到橫向模式時，標籤仍然以肖像模式顯示。我如何解決它。我已經實現了旋轉方法。但它沒有奏效。提前致謝。在AppDelegate中以橫向模式顯示UILabel

我的代碼是：

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo { 
CGRect frame=[[UIApplication sharedApplication] statusBarFrame]; 
if ([[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeLeft 
       || [[UIApplication sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeRight) { 

       backgroundImageView=[[UILabel alloc] initWithFrame:CGRectMake(0, 0, 480, 32)]; 
      } else { 
       backgroundImageView=[[UILabel alloc] initWithFrame:CGRectMake(0, frame.size.height, 320, 44)]; 
       NSLog(@"portrait"); 
      } 
[backgroundImageView setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"alert.png"]]]; 
backgroundImageView.userInteractionEnabled=YES; 
UITapGestureRecognizer *tgr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(click:)]; 
      [backgroundImageView addGestureRecognizer:tgr]; 
[self.window addSubview:backgroundImageView]; 
}![enter image description here][1]

see here

來源

2013-01-25 shivam

UiWindow subviews不自行旋轉.. 你需要檢查這樣

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(deviceOrientationDidChange:) 
              name:UIDeviceOrientationDidChangeNotification object:nil];

設備旋轉的變化，然後在方法..根據當前的方向手動旋轉您的標籤。

來源

2013-01-25 07:05:50 Shubhank

它在環去工作，如果（[[UIApplication的sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeLeft || [[UIApplication的sharedApplication] statusBarOrientation] == UIInterfaceOrientationLandscapeRight）{}但在橫向模式下不顯示標籤 – shivam

您必須在標籤上應用CGAffineTransform才能將其旋轉90度 – Shubhank

CGAffineTransform在此處不起作用。標籤顯示在屏幕上的未知位置，而不是正確的位置。 – shivam

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
return (interfaceOrientation == UIInterfaceOrientationPortrait || 
    interfaceOrientation == UIInterfaceOrientationLandscapeLeft || 
    interfaceOrientation == UIInterfaceOrientationLandscapeRight || 
    interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown); 
}

添加這個...希望這有助於..

或者補充一點：

- (BOOL)shouldAutorotate{ 
    return YES; 
} 

- (NSUInteger)supportedInterfaceOrientations{ 
    return UIInterfaceOrientationPortrait || UIInterfaceOrientationLandscapeLeft || UIInterfaceOrientationLandscapeRight || UIInterfaceOrientationPortraitUpsideDown ; 
}

來源

2013-01-25 07:09:22 lakesh

爲什麼不使用return yes？ – yebw

它正在旋轉，也正在旋轉的方法。標籤顯示，但不在正確的位置。 – shivam

然後你必須確保標籤正確定位在你想要的地方，當你在橫向模式... – lakesh

I have done the similar kind of thing using the following code... 

    - (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation  duration:(NSTimeInterval)duration { 

        [self adjustUrLableViewForOrientation:toInterfaceOrientation]; 

       } 

       -(void) adjustUrLableViewForOrientation:(UIInterfaceOrientation)orientation 
       { 
       if (orientation == UIInterfaceOrientationPortrait || orientation == UIInterfaceOrientationPortraitUpsideDown) 
        { 
         //Ur lable portrait view 
        } 
        else if (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight) 
        { 

        //Ur lable for landscape view 


        } 

       }

您也可以看看這個changing the lable position based on the orientation。

來源

2013-01-25 07:14:32

[backgroundImageView setTransform:CGAffineTransformMakeRotation(M_PI/2.0)];

應該針對這種情況

來源

2013-01-25 07:32:12 Madhu

不工作。您可以通過在willRotate方法中執行此操作來檢查此問題。 – shivam

在AppDelegate中以橫向模式顯示UILabel

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