I have a iPhone app I want to convert to an universal app so it can run on iPad. I have tried to find information about how to do it, but I don't find anything that answers my question. I have upgraded the iphone target in xcode to ipad. Then I get a new MainWindow-iPad.xib.
But I have many viewcontrollers and I have made those with code, not xib's. Do I need to have a if-clause in the loadView method that loads different viewcontroller depending on if the user has a iPhone or iPad?
It kind of depends on how you've implemented your loadView methods and how you want your iPad version to differ from your iPhone app.
If you just want your app to use the full screen, you can mostly just check the size of the screen and size your views appropriately and use the autoresizing mask to deal with things when you change orientations.
There are a few gotcha's with this approach, though. For example, modal views can work differently (not taking up the whole screen) and, obviously, the keyboard is a different size.
If you want to use completely different views for your iPad app then, yes, you'll quite possibly have if statements that tell it to use completely different view controllers.
Yes you have to create all xib's for iPad and then you have to write if-clause for Ipad xib to be loaded.
Related
i am very new to xcode. i have an app which supports both for iphone and ipad.presently my app supports portrait orientation, now i want to support it for landscape also.
As i goggled it and got an idea that we have to maintain two views for that.is this is the only way to do that? can't i maintain with singleview for landscape and portrait ?
if this is only the way provide me a good tutorial to do this because i have lots of views.
Note: my app should support in ios 4,5,6 also
thankyou
The answer is NO . You need not use 2 Xib's. Please go through the following links :-
Easiest way to support multiple orientations? How do I load a custom NIB when the application is in Landscape?
Different Xib's for Potrait and Landscape mode for iPad
http://www.theappcodeblog.com/2011/03/30/orientation-change-tutorial-change-the-view-when-the-orientation-changes/
Also ios 6 offers new methods like shouldAutoRotate etc. You might want to go through them too.
I am using xib-s for my UITableViewCells on iPhone. Now I need to convert my app to universal app. Do I have to create new xib-s (looking exactly the same way) for the iPad version? My current problem is that I am using grouped UITableViews. As the left and right margins on both devices differ, some of the controls on iPad are partly "out of the cells".
In case I need new xib-s (looking exactly the same way), do I need separate properties for the controls in the ViewController? For example, for a label named myLabel, do I need a second property myLabelIpad or is there a better way to handle that?
Cheers
My suggestion is to create new xib. But if there are small changes , then you can maintain one xib. However it depends on how different your iPhone / iPad versions are. For example, if the iPad version is just a bigger version of the iPhone one with a few extra buttons, etc, it's easier to use one UIView and just set the frames of the subviews appropriately.
First understand what you are up to. How do you want your iPad app to look like? How does it navigate. Ceratinly you want to leverage from the lager screen of the ipad. When ever you do that and the auto-resizing mechanism is not sufficient (which it rarely is) then go for a separated xib file.
Second - for each XIB which hosts the same number and types of UIView and UIConrol subclasses, you should be able to use the same view controller for two separate XIBs. Just link all conrols within both XIB to the related IBOutlet properties and IBAction methods alike.
However, when you take leveraging from iPad capabilites seriously then you are like to end up with a different set of view controllers. That is when you can combine the controls of several iPad views wihin one single iPad view and similar cases.
Nevertheless, think of using popups. The content of a popup could nicely correlate to what is a full screen on the iPhone. In that case you can use the same view controller again within that popup container.
Does this sort of answer your question? If not, then please be more specific.
Actually you can retain the same Table cell xib files. You just have to get the Auto resizing masks of the cell and its subviews right.
I've been working on my app for a while, and it've been out in appStore for a while as well, but I now want to add support for landscape orientation. I've thought I had just unchecked the orientation-icons in the Summary-page of the target to only enable portrait, but when I check them now, nothing happens! A lot of stash has been added, but I can't find any methods that should disable landscape.. What kind of method would that be? I didn't find anything in appDelegate either.. I don't even know where to start looking.. When opening an empty project in xcode, they orient just fine with no methods at all..
In storyboard, when clicking a view and going to inspector, it says Orientation:Inferred. So the problem isn't here.
I using a tabBar, and all the views in the viewControllers are set to Autoresize subviews, as a similar question got answered.
EDIT
When enabling landscape for iPhone using the buttons in the target properties summary, the iPhone is allowed to go landscape, but when enabling it for the iPad, nothing changes..
shouldAutorotate in iOS6 and shouldAutorotateToInterfaceOrientation for previous version.
Note that the orientation is mostly defined by the ViewController.
you can add or remove the supported orientations in info.plist
I solved the issue by making a class for the UITabBarController, and setting shouldAutorotate... to YES. I find it weird though that my iPad storyboard overrode the Summary-page.
EDIT
This is giving me a hard time with everything else.. The device rotates correctly now, but sometimes when launched in landscape, it thinks it's in portrait.. Still trying to figure that out. Even when I ask the app which orientation the devices statusbar is in, it returns portrait even if it really is in landscape..
This might be a question specific to my app.I have an iPad app functional. I am converting it to iPhone app. So on one of my iPad screens i have 40-50 controls (labels, textfields,buttons,etc). Now can i achieve something like that on my iPhone also. Screen for iPhone is small and i can barely put 20 controls on one screen. Can i have a long vertical scroll view to put all my controls on one screen. I mean user can scroll down and down and have the same exact controls on this iPhone screen as on iPad screen but with different orientation. Or should i separate that one screen into multiple UIViewControllers? Please let me know if you need more information. Thanks.
Simple answer: You can do anything you want.
More elaborate: You could do a scroll view like you mention, but I'm sure this would be sub-optimal. You have a few options to deal with the difference in devices. The one you choose usually depends on the view or the amount of content it contains. You can 1) Simply resize it for the other device (this only works in rare situations where you have a simple view or one without much content). 2. You create a separate view controller for each and launch the appropriate one for the device (per apple docs). You could just slap your view in a scroll view, but depending on the specifics, a tab view, navigation controller, or some other option may provide a better user experience. In the end it's up to you...
I have the following problem.
I have an iPhone app and want to upgrade to universal
When I do this, I get the expected MainWindow-iPad.xib.
But the size of the window is hardcoded to 320x480.
Also, there is no view in the window.
I red, this should be automatically iPad-sized, so I am assuming I am doing something wrong.
What exactly am I missing ?
thanks in advance
Yes, the dimensions of a UIWindow object are hard-coded to the size of the iPhone screen. This confused me, too, until I realized there was an option to resize it: select the UIWindow object in the .xib in Interface Builder... in the Attributes pane, make sure the "Full Screen at Launch" checkbox is checked.
As St3fan says you'll probably want to have a specific main window .xib for your iPad build.
See my answer at:
UITabBar unresponsive on iPad
I got this. I fixed it by deleting the automatically created ipad xib, then opening the original xib in interface builder and choosing convert to iPad from the menu. Then ni saved it with the -iPad name and added it to the corredt target.
You will probably also need to create a MainWindow-iphone.xib and MainWindow-ipad.xib.
I had a similar issue with a GLES application - using EAGLView, in a manner similar to all of the samples, but wanting to support iphone3,iphone4,and ipad.
in my context creation from [EAGLView initWithCoder], I was forcing the eaglLayer's rect to match the main screen, which worked for iphone and iphone4 (i.e. gave me a 320x480 or 640x960 gl surface), but for ipad, this gave me a 768x1024 surface which was cropped on present to 640x960.
As it turns out, The "Full Screen at Launch" option seems to be applied AFTER the view's (EAGLView, in my case) initWithCoder.
My solution was to do nothing in the [EAGLView initWithCoder], and only actually initialize my view after the AppDelegate's didFinishLaunchingWithOptions gets called, in the layoutSubviews call.
HTH,
forks