I am developing an application in ipad and i need to make it in a way that it support the landscape and portrait orientations. I think we need to override some methods of UIViewController class and perfrom the orientation ,view resize, view positioning etc. Can anyone help me by providing your valuable suggessions in this?
Thanks,
Ajith
Have you read the 'Handling View Rotations' section of the UIViewController's class reference?
If you have, can you give a more specific situation you're having trouble with?
Related
I need to lock all controllers from auto rotation except one. It must rotates both portrait and landscape. I have read this topic and tried this solutions
let value = UIInterfaceOrientation.LandscapeLeft.rawValue
UIDevice.currentDevice().setValue(value, forKey: "orientation")
but I had no luck, it didnt work. Maybe this is because I use navigation controllers, I saw some mentions of them in previous link but I didnt understand approach because author allowed orientation modes in Xcode preferences and then duplicated them in code.
Maybe some one can help with advice ?
The current method to handle rotation is viewControllerWillTransitionToSize:withTransitionCoordinator:. Documentation is at this link: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIContentContainer_Ref/index.html#//apple_ref/occ/intfm/UIContentContainer/viewWillTransitionToSize:withTransitionCoordinator:
It's a little bit different because you're working with screen sizes not orientations. This is the new way of dealing with sizes and transitions. Think of it like a responsive layout instead of distinct rotation values. To put it a different way, you're not designing for "landscape orientation" anymore, but for a screen thats wider than it is tall. It's a subtle but important difference.
You could implement this method in different ways for different view controllers. If you're using a navigation controller and want to affect child views differently, first I'd say thats terrible UX most likely. But if you still want to do it, you could handle rotation in your Nav Controller.
You should not set the device orientation like that.
you can try this method. Paste this method on the view controller to make the device support portrait and landscape except upside down orientation.
func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
return UIInterfaceOrientationMaskAllButUpsideDown
}
But as chris suggested, you should use viewControllerWillTransitionToSize and handle everything regarding the orientations there.
I have an iPad application and in one of my views i use UIScrollView and UIPageControl together to navigate between views array. when my simulator is on Portrait mode there is no problem but when i rotate it to Landscape just down side of the scrollview appears and i can see just about 30 per 100 of the whole view. How can i fix this situation can anyone help?
EDIT : I dynamically add some buttons-subviews on the subview that i have added to Scrollview, can some one give any idea about how to detect the orientation of the device and decide the frames. I need something like the pseudo below:
if(device_orientation == landscape){
subButton.frame=....;
textfield.frame=...;
}
else{
subButton.frame=....;
textfield.frame=...;}
}
i tried but i got black screen..
EDIT-2
I used Interface builder for some views and there are some dynamically created views.I played a little with Autoresizing properties on the .xib file and now it looks perfect but the dynamic ones(they are all objects of a subclass of UIButton) dont response to any code(resizing, bacground color-photo ect..)
Are you using interface builder or creating your view programmatically?
It would be helpful if you could post some more of your source or some screenshots so that we can see a bit more clearly what's going on. As a stab in the dark, you might want to try setting the 'autoresizingMask' property of the views which you want to resize to '~UIViewAutoresizingNone' (not-none/flexible). If you can provide some more details, I'll try to help you some more :)
I have a UIWindow with a hard-coded UIView inside. I'd prefer to keep it that way, is there a nice way to rotate an already visible keyboard? This question asks the same thing, so I guess I'm really asking if the API used by UIViewController to rotate the keyboard is private API. I'm not going to use it if it is, but I'd still be interested in what it is. And how you found out. Thanks!
UIViewController handles the rotation for your, you really should use one. Don't try to reinvent the wheel, stick to the best practices and you will avoid a lot of unnecessary work.
https://developer.apple.com/library/ios/#DOCUMENTATION/iPhone/Conceptual/iPhoneOSProgrammingGuide/AppArchitecture/AppArchitecture.html#//apple_ref/doc/uid/TP40007072-CH3-SW18
The UIViewController class is the base class for all view controller
objects. It provides default functionality for loading views,
presenting them, rotating them in response to device rotations, and
several other standard system behaviors
I am working on an iPad app that relies on a rather complex layout that seems to be beyond the abilities to the auto-resizing masks to rotate cleanly from portrait to landscape.
I can easily enough hand-tweak a layout in Interface Builder for each orientation, but I am puzzling over the most elegant and maintainable way to handle making the transition between the two different layouts.
Is there any way that this can be done with segues?
Is there a way I can easily snapshot two different layouts and use code to morph between them?
Am I better off trying to use HTML5 to do the page layout and not UILabels?
Are there other better techniques that I haven't even thought of yet?
Help is much appreciated - it seems like this shouldn't be so hard.
All you scenes may or may not need to have their own subclass (depending on inheritance). Assign the subclass to the respective scene.
You then need to set the supported rotation values in the subclass. eg.:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return YES;
}
EDIT:
I suggest loading a respective NIB by overriding willRotateToInterfaceOrientation:duration: and didRotateFromInterfaceOrientation:.
I’m trying to set up an iPad test application, window-based, where I have a single view controller and a single view. When I rotate the iPad, I want the orientation of the toolbar to change, but not that of the view itself. For example, a sort of background view that you work in is fixed to the device, but the status bar and toolbars rotate around it. This would enable the user to work the view from all angles, but always with a correctly-oriented toolset.
A beautiful implementation of what I want can be found in the Brushes for iPad app, where the painting’s orientation is locked to the device, and the toolbars rotate around it. I think other painting apps do the same thing.
I’ve been trying to figure out how to do this, but after exhausting many many other questions here concerning orientation, I’m still at a loss.
Could anyone point me in the right direction towards a neat solution? A particular combination of autoresizes for the autoresizeMask? Countering the rotation animation with another one in the opposite direction? Using multiple concurrent view controllers, one for the rotating views and one for the non-rotating ones?
I’d very much appreciate it,
(Edit: Attempted to clarify the question, after Olie’s comment.)
To prevent rotation, you'd put this in your view controller's .m:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
But you say you still want the view frame to resize in response to the rotation. I haven't had a need to do this myself, so I'm not sure if it's sufficient to just set the autoresizingMask to have flexible width and height; you may also have to implement didRotateFromInterfaceOrientation: and use setNeedsLayout and/or resize the view manually.
I had a bug that did this a while back -- I'm pretty sure that what you're asking will get you a HIG-violation rejection from Apple. However, I'll give a shot at remembering what the problem was. I'm pretty sure it was something like this:
I had a tabbarViewController that said "I orient to any orientation."
One of the tabs was a regular-old UIViewController that said "I only do LandscapeLeft & L-Right"
When you rotated, the inside (UIVC) stayed put, but the outside (TabVC) rotated around things.
I might have some of the details backwards or otherwise convoluted, but the general ideas is: stacked VCs, not all one VC.
Good luck!
To the extent I have worked with I cannot see any simple answer to your question. What about rotating everything (tabbar, nav and status bar, your view controller) and then redrawing the content of your view controller in "old coordinates" so for the user it will look like it's not rotated?