How to make my iphone app work on an iPad? - iphone

It is my understanding (i have seen it) that some apps can be opened and viewed in an iPad. Although, the iPad keeps the screen small, or pixelated if doubled the screen size.
I am attempting to do the same thing with my app, however when I attempt to run it on an iPad it crashes with the error
'Could not find a storyboard named 'MainStoryboard_iPad'
This is obvious, as I do no have a storyboard for the iPad, but currently I don't want one. I just want the iPad to run the app as an iPhone app in a smaller version. So my question is, how do I stop it from looking for the iPad storyboard? Its my understanding I must adjust something in the plist.info but I don't know how to access that in xcode. its my understanding you select the project in the navigator then select 'info' but I don't see any information that people say should be in the plist.info.
Thanks

You seem to have made your application universal. You want to set your "devices" to iPhone. This can be done on the target summary page (No need to interact with your .plist directly).

Only target iPhone platform, and do not call any iPad interface objects in your code. You should look in your Main xib file to make sure there are no references to an iPad interface object.
iPhone only apps should natively run in double-pixel mode. In order to resolve the pixelated / grainy issue you see, use #2x (for iPhone) size images. This will reduce the pixelation you see, but will still contain some.

Ok, I found the final issue. After editing the summary to 'iPhone' I also had to go into the Info tab and change the line that says
'Main storyboard file base name (iPad) to MainStoryboard_iPhone. It was currently set to MainStoryboard_iPad. That second step fixed the issue.
Thanks guys!

Related

ios11 iphone app icon is missing on iPad

I have an iPhone only app but it works in compatibility mode in the iPad too(no surprises).
but after I updated the app for the ios11, app icon on the iPad is missing.
here is what I've tried;
- launch on the iPhone simulator, icon appears
- launch on the iPad simulator, icon is missing
change the device options from "iphone" to "universal", run the iPad simulator, icon appears but app needs a new iPad ui.
change back to "iPhone" and the app icon is missing again in iPad. really confusing.
I tried to create a new project and make the same changes but never able to make the icon missing again.
I'm using cocoa pods if that makes any sense.
I think I'm missing a settings or something else, I'm really trying to find it, any advice would be greatly appreciated.
I've found the problem.
In info.plist, there was an extra or problematic entry.
- CFBundleIcons~ipad
Remove this line and iPad icons appear normally.
This problem has been reported by many users over the past 6 months (including desperate pleas to Apple to fix this bug), yet no one's reported the following solution.
I'm using Xcode 9.2, and I noticed today that my iPad/iPhone's application will run fine on my iPad (iOS v11.2.1) but the icon is missing.
This is a legacy app, about 2-3 years old, and the cause seems to be my Appicon file. When I view this file, I see this:
Previously, this resource was sufficient to provide the app icon for both the iPad and iPhone, but apparently, not anymore.
I went into my Images.xcassets file, right-clicked, and selected "App Icons & Launch Images\New IOS App Icon" and now have a look at the extra icon possibilities:
Notice the extra icons for iPads.
Sure enough, I created yet more .png files, with resolutions matching the desired iPad resolutions settings, and now, when I build my app and run it on the iPad, it does show the correct icon.
Oh, and I also needed to go into my project's build settings, select the "General" tab, and change the "App Icons Source" to the name of my new image set, "AppIconNew".
Et voila. No messing around with Cocoapods, no need to change the .plist file (mine didn't have that "CFBundleIcons~ipad" entry anyway), I just needed to create a new image set.
Okay, time to go back to my modern, cosy world of using Visual Studio again now.
(Happy sigh..)
I've had a few legacy apps that did have the CFBundleIcons~ipad in the Info.plist, so I check that first. However, I've also had instances where it was just missing the asset as #Mike Gledhill mentioned. If this is the case, you don't have to go through adding a new AppIcon set. Just check the iPad box in the Attributes Inspector for the current AppIcon assets and the iPad sizes will show in the current set. Then just add the correct assets for each size requirement.
I didn't have CFBundleIcons~ipad entry in my Info.plist file as per "karpat"s answer. So I moved to "Mike Gledhill"s answer, then after observing my all the icons from Image assests, I found that for particular icon which was invisible only on iPad, the device type set was iPhone.
I just changed device type by right cling on image set to Universal :
This did work for me.

Black screen instead of launch image on iPad

I am developing an iPhone app for iOS 6.1 and 7 (using Xcode 5). I have a problem with iPad launch images.
On iPad 7.0 and 7.0.2, the launch image is not showing up(in 6.1 works!): I get black screen while app is loading.
I don't face this issue with iPhone 6.1 and 7.0.2, although I set all launch images required for iPad and iPad retina (landscape and portrait) and I use Asset Catalog.
What am I missing?
Recently I faced same issue with my App designed only for iPhone , I had the problem where the launch images would not appear in iPad (On iPad ios >= 7.0.x the launch image is not showing up I get black screen while app is loading (in iPad ios < 7.0.x it works fine )).
I don't face this issue of launch image with iPhone worked fine in all iOS versions.
Solution: Is to update to asset catalog to manage your app's images and target only iOS 6 and Prior.
Steps :
Step 1:
Step 2:
Step 3: on the top right corner click on the 'Attribute Inspector' icon. Here you can set the Target OS for the Launch Images.
Uncheck the iOS 7 check boxes for iPhone, Now you should be able to see the launch images for iPad on iOS >= 7.0.x.
If you have the same situation like mine, that's solution:
My app is landscape only, iOs7 only, ipad\iphone (XCode 5).
Problem: black launch on iphone (and simulator), normal launch in ipad.
Solution: go to Images.xcassets - Launch Images - select it. Uncheck at right all "iOs7 and later" boxes. Check "iOs6 and prior" boxes and fill empty spaces with images.
Strange, but works.
Per Apple's documentation (link); an empty iPad specific storyboard may be the answer. I've also seen issues where the initial view controller is not set within a storyboard causes a black screen. A variant of this issue might be an incorrect setting in the app plist.
Technical Q&A QA1780
Why does my app launch to a black screen on iPad?
Q: Why does my app launch to a black screen on iPad?
A: Apps that have been designed only for iPhone may launch to a blank screen when run on an iPad. This is caused by the presence of an empty iPad specific storyboard in the app bundle as well as an iPad specific UIMainStoryboardFile key in the app's Information Property List (Info.plist) file. Both are automatically created by the various Xcode template projects if the Universal option is selected.
...
In Xcode
Look for a file named MainStoryboard_iPad.storyboard in the file navigator. If this file is present, remove it from your project.
In your app's Information Property List
Look for a key named Main storyboard file base name (iPad) or UIMainStoryboardFile~ipad. If this key is present, remove it. You should also remove any other key suffixed with (iPad) or ~ipad.
Finally, test your app on an iPad or in the iPad simulator and verify that it behaves as expected.
I requested Apple support and it turned out that it's a bug. They asked me to report it and I did. Here is the report id : 15340531.
Now it's up to them.
Using LaunchScreen.storyboard
I was having a similar problem until I found the following settings in the General Project Settings.
Set your Main Interface to your main storyboard file. Mine is called Main.storyboard.
Set your Launch Screen File to your launch screen storyboard file. Mine is called LaunchScreen.storyboard. (This is what I had originally ommited.)
After that the launch screen loaded first and then the main story board loaded shortly later.
Try set the image again make sure that resolution of the splash screen is according to the iOS 7 guidelines
I know this sounds stupid. I've had bugs like that when I saved a file in psd-format with a jpg extension. Just 1 wrong click while saving your launch image.
After having tried several solutions found here, I suspected that the iPhone was trying to launch in Landscape orientation, and thus not finding any corresponding launch image. Indeed, the simulator was starting in Landscape for a reason I was not understanding.
Finally, after reading Apple documentation, I found that it's probably the order of keys in "Supported interface orientations" of the info.plist file that was not adequate. The Portrait was the last item. When it's the first item, the app launch in Portrait mode and find the image.
Remove previously installed app from the device or simulator, Then relaunch the app after clean.
I had the problem where the launch images would no appear in iPhone (3.5 or 4 inch) in iOS 7, but the iPad had no problems with iOS 7.
Long story short is I disabled the asset catalog for the launch images only. So I'm adding the launch images the old fashioned way. That seems to have solved the problem.
I will have to do more testing tomorrow, but it seems the problem is solved (at least in my case).
in Xcode 5 , make sure thay you add all needed images mentioned in your app target.
I am assuming that when you are using Asset Catalog, you have ensured that you have the Images.xcassets target membership added correctly. I am mentioning this since if you have multiple targets, looks like you have to add them manually (and you have not provided any screenshots so one can be sure).
Now that you have not really provided a screenshot of the "LaunchImage" overview of Images.xcassets folder in your project, I can only guess the probable reason. Looking at the fact that the launch images work fine for iPhone (6.1 & 7.0.2 and iPad (6.1) and do not work only for iPad (7.0 and upwards), I think you could perhaps look at as to whether the dimension of the images for iPad Portrait and iPad Landscape are proper for iOS7. Specifically, you should see your launch images and not empty rectangles as seen in the attached pic-
This can happen due to the fact that you still have the iPad launch images for iOS7 created excluding the status bar area. Prior to iOS7, the iPad launch images were created to exclude the status bar area, but it's a must on iOS7 that all the launch images must include the status bar area. Please go through the section "Things Every App Must Do" in Apple iOS7 UI transition Guide (https://developer.apple.com/library/ios/documentation/userexperience/conceptual/TransitionGuide/TransitionGuide.pdf).
The following screenshot should explain what I am talking about-
e.g. you can see that iPad Landscape Retina image dimension for iOS6.1 and previous is 2048x1496 (excluding 40 px for status bar) but the dimension for the same image for iOS7.0 and upwards is expected to be 2048x1536 (including the 40px for status bar). So, if you have not changed your images accordingly, you will see black screen for images on iPad 7.0 and upwards. On iPhones, you will not face this issue since iPhone launch images always cover the status bar, be it iOS6.0 and iOS7.0- so the new UI requirement is already met for iPhone launch images.
I found this answer which worked for our app (iPhone only, but used on iPad): https://stackoverflow.com/a/19448782/1258419
To summarize from that answer:
How to do it. Go to the asset catalog. And on the top right corner click on the 'Attribute Inspector' icon. Here you can set the Target OS for the Launch Images. Uncheck the iOS 7 check boxes for iPhone. Now you should be able to see the launch images for these devices.
I encountered a similar problem in landscape, my iOS 7 launch image wasn’t displayed while the iOS 6 did. Mine was the iPhone Retina 3.5” launch image.
Since I have another app in portrait that didn’t share this issue, I did 2 things:
In info.plist, under “Supported interface orientations”, I added the
2 portrait modes as well, and put them before the landscape, like
this:
Item 0: Portrait (top home button)
Item 1: Portrait (bottom home button)
Item 2: Landscape (right home button)
Item 3: Landscape (left home button)
Implemented this method in the View Controller:
-(NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskLandscape;
}
This works with or without the Asset Catalog.
This is an update for iOS 8.
I got the same problem when I tried to add a LaunchImage to my iOS 8 app.
Apple enables developers to use a xib, whose default name is LaunchScreen.xib, to render the launch view as of iOS 8. I believe developers can use either LaunchImage or LaunchScreen.xib. Unfortunately, I couldn't find any document describing how to deal with LaunchImage after LaunchScreen.xib was introduced. I always got a black screen when I tried to use LaunchImage as the launch view.
My solution is:
Don't think about LaunchImage. Use LaunchScreen.xib. (You have to keep an empty LaunchImage in your Asset Catalog though. I believe it's a bug.)
Drag an UIImageView to the xib and make the UIImageView full screen. Remember to take the size classes and constraints into account.
Set an image whose resolution is enough for iPhone 6 plus to the UIImageView.
Check your all images and see if it is properly placed in the Asset and properly named and sized.
Also check which orientations your are allowing and accordingly add images to the asset.
I had the same problem.
I had to make a workaround: used the Default image for all iOS versions and DELETED the UILaunchImageFile key from info.plist.
I cannot use different launch images for iOS 7 and previous versions, so, I had to use the same "artistic" image for all, instead an image that mimic the first view of the app (which Apple recommends and I prefer), but at least I do not get the black screen anymore.
It looks like the UILaunchImageFile key that allows to use differents launch images for iOS 7 and previous versions is not working properly for Retina iPad in iOS 7.
WARNING: I am still testing the app, so I don't know if could be some side effects.
I also faced the similar issue but its solution was simple (in my case).
All I did was following -
1.Add a new file (if you have not added it) Launchscreen.storyboard
2.Get a UIViewController, mark it as Is Initial View Controller then add a UIImageView in it and set a picture which you want to display during launch of your app. Make sure you give this UIImageView required constraint.
3.Go to Project->General->App Icons and Launch images and select Launchscreen.storyboard as Launch Screen File (There will be a dropdown for it).
Because of iOS 13 and later, app launch different than earlier versions.
Get the solution from below URL.
https://stackoverflow.com/a/59913274/883505
I simply forgot to call super.loadView() in my view controller...
override func loadView() {
super.loadView()
}

convert an ipad app to iphone app with custom views

This might be a repeat question.But i have a problem. I have an iPad app functional. The app is built in iOS 6. When i started building it i chose iPad as targeted device NOT universal. Now my client has asked for an iPhone version of it.In my iPad app i keep adding custom views as the client clicks "Add More".I add a custom view which is bunch of textfields, buttons etc.So i copied my iPad app and changed the Targeted device family to iPhone once and also Universal next time and tested it. So when i launch the app in iPhone configuration (keeping the targeted device family as Universal) my view controller stays like that on iPad. I cannot scroll the app also(not up/down..nor sideways). Is this the correct way to convert iPad app to iPhone app . Also everything is still with scale to iPad. Should i start a new project and start everything from scratch.Set the storyboard to fit according to iPhone configuration? In my research people said just change the targeted device family to Universal. But it doesn't work. Please let me know if you need more information. Thanks.
It is possible to convert the current project you have to an app that can be used universally, but it would take more time than simply just creating a new project that allows universal usage, and adding in the files of which you used for your iPad project.
Hint: You can use more than one storyboard when the project was created universally. It will automatically set this up for you.
I would also advise that you separate your files into what works universally, and what is specific for the iPhone or the iPad.
Happy Coding!
After many search i found that it possible to have an application for both Iphone and ipad devices.but in your code you should define unique ui for each device(two xib file).

Convert iPhone project to iPad project?

I'm just starting out with iOS development and I'm actually trying to make an iPad application. I've found a sample project that is perfect for me to start from but it's meant as an iPhone app.
So I was wondering, maybe it's just a matter of replacing some xml file to convert it into an iPad app?
Any ideas if it can be done, and how?
If you are using Xcode 4, select the application target and change the value of Devices in the Summary tab to iPad.
You should also modify the appropriate xib files made for iPhone. You may also have to change any code that works only for the iPhone like specifying frames with fixes values that fit the iPhone screen size, but are too small for the iPad screen size.

iphone app only showing in little window on ipad

I have developped an iPhone app and I now need it to work on iPad. On the simulator the app only show in a little window (the x2 zoom enable the app to work in full screen) but is there a way to have the app directly showing in full screen ?
Thanks a lot,
Luc
go to project settings and set Targeted Device Family to iPhone/iPad
As Max said, go to project setting and set Target Device Family to iPhone/iPad. But this is not enough. With this change the application type will be universal application. This is good, because the app will start in full screen, but if you hard coded the dimensions of the views in the application then the look and feel on the iPad will be bad. So do the first step what Max suggested for you and then check if the app looks like you want, because it will not arrange the views automatically. You should do the changes from code or from nibs.
There is a little help if you set properly the autoresizing masks.
Edit:
Project menu -> Edit Project settings -> Targeted device family
You will need to do at least the following:
Change the Targeted Device Family to include the iPad.
Create or convert all needed .xibs for the iPad (using the Interface Builder Menu).
Reference the top level iPad .xib from your app's info.plist (using the NSMainNibFile~ipad key).
Handle the iPad paradigm wherever the controller or view source code needs to differ.