I've got an iPad App with a TabBarController. Since iOS5 I'm note able anymore to get the correct orientation in the viedDidLoad or viewWillAppear when I start the app on the iPad in landscape. It always returns Portrait. When I ask for the orientation in viewDidAppear, everything is fine and correct. In iOS4 I was able to get the right orientation, but now I build for iOS5 ... not anymore.
Please. What can I do to get the right orientation on the iPad on startup?
This is how I get my orientation:
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
Thanks!
If you are loading any viewcontroller before loading RootViewContoller then Orientation of RootViewController needs to be set before adding it to window. you may find answer HERE
Related
I'm looking at how my app will run in Split View on an iPad Pro.
I use constraints for layout, but sometimes I want to know the window orientation in order to tweak the layout by modifying a couple of constraints.
Things are easy to handle if the user rotates the device (I handle the call of viewWillTransitionToSize), but the app has to know its initial orientation.
Until now, I have been using the status bar orientation to determine the device orientation:
UIInterfaceOrientation o = [[UIApplication sharedApplication] statusBarOrientation];
But this doesn't seem to work properly in Split screen mode on the iPad Pro simulator. The problem is that the device is in landscape mode, and the statusbarOrientation call says the app is in landscape mode. But my app is using half the screen, so it needs to do layout as if it's in portrait mode.
If I check the bounds size of myViewController.view, this seems to give the right answer, even if the device has not been rotated. In the bad old days I seem to remember that we couldn't rely on this unless the device had been rotated at least once.
So what's the right way to determine the orientation of my App window in iOS9?
My app’s device orientation is set to portrait, however when rotating the device into landscape mode, the app is keeping its portait mode but the keyboard is rotating into landscape mode...Something that is unexpected.
Why is that happening and how to prevent it?
Thanks
Jrejory
After not getting any answer and making more researches, I came across this Answer:
https://stackoverflow.com/a/6941930/4400274
Because I just needed the portrait orientation in my app the following worked for me :
[[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
I put that in my main Navigation Controller's viewDidLoad.
I know it's late. But maybe it will help someone else. I had the similar issue. My app should support portrait orientation for iPhone and all orientations for iPad. So, on the iPhone scene didn't rotate, but keyboard did. All my UI was made from code, I also init view controllers (including root) through code. But I didn't remove default Main.storyboard file. When I removed string in Target -> General -> Main Interface, it help me. It was not obvious.
I have 2 root view controllers ViewController1 and TabBarController1(there are reasons for making 2 root view-controllers). ViewController1 only supports Portrait mode and TabBarController1 supports all orientations. ViewController1 appears first after launch. I am locking the orientation of ViewController1 using the following method.
- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskPortrait;
}
The app launch and orientation worked fine with iOS7.
When building the app through Xcode 6 in iPad(iOS8) following change is observed:
- When app is launched in landscape mode, ViewController1 with orientation locked into portrait mode appears with half black screen and when TabBarController1 appears which supports all orientations, doesn't resize with proper dimensions on changing orientations.
I have also tried overriding the above method in TabBarController1 to support all orientation but nothing works fine.
This problem is not observed when launching the app on iPad in portrait mode.
There is no problem when launching the app on iPhone as iPhone launches only in Portrait mode.
What is the issue when working with iOS8 ?
I am a newbie, so don't judge..
In ios8, apple changed 2 things :
1-
[[UIscreen mainscreen] bounds].size
This used to be a fixed value for portrait and landscape, now it is not.
When u change from landscape to portrait the width and height switch.
2-What is happening with you. You cannot force a viewcontroller to be in portrait only if you set portrait and landscape in project settings, do not know why, so you maybe have to set portrait only in project settings for example..
This is happening on iPads and iphone 6+ only.
Hope this helped..
I'm working on an iPhone app that supports both Portrait and Landscape orientations. When I start the app in Landscape mode and verify the orientation in the AppDelegate it returns Portrait orientation. After I rotate the device/simulator it returns the orientation correctly. It's an iOS 7 app. Anyone know how tot handle this? I need to know the orientation at startup for handling the UI.
UIViewController documentation says:
Note: At launch time, apps should always set up their interface in a portrait orientation. After the application:didFinishLaunchingWithOptions: method returns, the app uses the view controller rotation mechanism described above to rotate the views to the appropriate orientation prior to showing the window.
That's why it returns portrait mode first. More info in UIViewController documentation.
I searched for other existing posts, but none of them satisfied my requirements.
Here is the problem i face,
My app supports both the Modes , landscape and portrait.
But my first screen only supports Landscape , so the app must start in Landscape.
I have set supported Orientation to all the 4 options
I have set the Initial interface orientation to Landscape (left home button)
In the view controller of the first screen i am defining the below
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortrait);
}
And when i start the app the simulator always opens in Portrait and my view is all messed up in the portrait mode , since it is designed only for the landscape.
After the switch to the Landscape, the device remains in this mode.
can anyone help me with the solution to avoid this ?
Thanks
Naveen
EDITED :
This info may be helpful , The problem is faced only when i hold the device in Portrait and then launch the app.
Its not the duplication of this question, Landscape Mode ONLY for iPhone or iPad
Landscape Mode ONLY for iPhone or iPad
I do not want my app to be only in Landscape , i want only the first screen of my app to be only in Landscape.
I did some experimenting with an app I'm working on that has the same requirements, and came up with the following:
To set the initial orientations that are supported when the app is first launched, use the "Supported Device Orientations" setting for your target.
Also back that up with the appropriate shouldAutorotateToInterfaceOrientation code, as you've already done.
For subsequent screens, simply use the shouldAutorotateToInterfaceOrientation code to determine which orientations you want to support. Even if you've specified only landscape modes for the Supported Device Orientation, shouldAutorotateToInterfaceOrientation wins. :)
I think this approach is a little cleaner than using an extra dummy VC.
I achieved a workaround for the Problem and it solved ,
I created a dummy view controller and added as the root view controller of the Window.
Added the below method in the implementation
-(void)viewDidAppear:(BOOL)animated
{
WelcomeScreen *welcomeScreen = [[[WelcomeScreen alloc] initWithNibName:#"WelcomeScreen" bundle:nil] autorelease];
[self presentModalViewController:welcomeScreen animated:NO];
}
Now it worked as expected.
Here is a SO link that will hopefully answer your question on how to launch your app in landscape mode.