iOS Detecting InterfaceOrientation on app start

[sujithkrishnan]

Hi,

I am trying to detect the interface orientation in my only viewcontrollers' loadView method. I tried with device orientation, status bar orientation and view controller orientation, where all gives the default (portrait) values.

I want to show image-A if the startup-orientation is L/S and image-B if portrait.

Please help!

 

[MacToddB]

Hi,

I am trying to detect the interface orientation in my only viewcontrollers' loadView method. I tried with device orientation, status bar orientation and view controller orientation, where all gives the default (portrait) values.

I want to show image-A if the startup-orientation is L/S and image-B if portrait.

Please help!

You should ask in the Programming forum. Regardless, have you looked into the Default-Portrait and Default-Landscape files?

http://developer.apple.com/iphone/library/qa/qa2010/qa1588.html

Also,

In your Info.plist file:

Specify values for the UISupportedInterfaceOrientations key for the supported orientations.
Specify values for the UIInterfaceOrientation key for the initial launch orientation.

 

[sujithkrishnan]

You should ask in the Programming forum. Regardless, have you looked into the Default-Portrait and Default-Landscape files?

http://developer.apple.com/iphone/library/qa/qa2010/qa1588.html

Also,

In your Info.plist file:

Specify values for the UISupportedInterfaceOrientations key for the supported orientations.
Specify values for the UIInterfaceOrientation key for the initial launch orientation.

I know about the Default-<parameter>.png images. And the device is picking the image based on orientation. I want t get the orientation in my loadView method, where i want to show another image after Default image, but the new image is different for different orientation, All the orientation methods are giving me Portrait/Unknown as return value.

 

[PhoneyDeveloper]

The orientation will always be portrait when loadView is called. That's fine. Just load up your portrait appearance. Then properly adjust your appearance for rotation.

 

[matoch]

I was looking at this a bit this morning. From what I can tell by default it seems to load portrait first and then rotate the view. There may be a better way of doing this but this is what I figure should work.

- (void)viewDidLoad {
    [super viewDidLoad];
	portraitBackground = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"back-portrait.png"]];
	landscapeBackground = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"back.png"]];
	self.view.backgroundColor = portraitBackground;
}

- (void) willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
	self.view.backgroundColor = nil;
	if ((toInterfaceOrientation == UIInterfaceOrientationPortrait) || (toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)) {
		self.view.backgroundColor = portraitBackground;
	}
	else {
		self.view.backgroundColor = landscapeBackground;
	}
}

 

[sujithkrishnan]

I was looking at this a bit this morning. From what I can tell by default it seems to load portrait first and then rotate the view. There may be a better way of doing this but this is what I figure should work.

- (void)viewDidLoad {
    [super viewDidLoad];
	portraitBackground = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"back-portrait.png"]];
	landscapeBackground = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"back.png"]];
	self.view.backgroundColor = portraitBackground;
}

- (void) willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
	self.view.backgroundColor = nil;
	if ((toInterfaceOrientation == UIInterfaceOrientationPortrait) || (toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)) {
		self.view.backgroundColor = portraitBackground;
	}
	else {
		self.view.backgroundColor = landscapeBackground;
	}
}

Sounds good, i wil try .

Thanks a million