My universal iOS app displays the message
[ApplicationLifecycle] Windows were created before application
initialzation completed. This may result in incorrect visual
appearance.
Right at the start of launch - before didFinishLaunchingWithOptions is reached. The app does not crash although there is an issue later where a screen is unexpectedly blank - not sure why.
The app does not display this message on an iPhone.
The iPad uses a splitviewcontroller (actually a custom one).
It is written in objective-C with a mainWindow.xib, as opposed to storyboard.
Can anyway offer any suggestions as to how to determine what is causing this issue.
I was having the same problem, the error will show only on ipad size 10.5 or bigger, i don't know if this will help you, in my case was caused by the launchImage. To solved I changed in settings - target - general, in the field - Launch screen file - set it to = LaunchScreen, and then in I dragged an image view on LaunchScreen.storyboard and load a LaunchImage.png in the image field.
In addition to PabloT.'s answer:
In your target settings, look for General - App Icons and Launch Images and see if the Launch Screen File is blank. You should set it to your mainWindow.xib.
This will not only solve this issue, it will also help to adjust your app to bigger iPad screen sizes.
What worked for me: You have to keep a reference to UIWindow, because when returning from didFinishLaunching, the temporary UIWindow *window is lost.
This means:
#interface AppDelegate ()
{
UIWindow *myWindow;
}
#end
I stopped receiving this error when I deleted the Launch Screen.xib left over from my Swift conversion.
The original app was in Objective-C, which required the xib file. After completing conversion recently, I started receiving the subject error message.
I deleted the Launch Code.xib, cleaned everything, and rebuilt. I haven't received the error since.
Related
I was using LaunchScreen.storyboard without problems.
but I changed LaunchScreen.storyboard file name to LaunchScreen2.storyboard since I hoped not to use the splash image.
(I thought it could decrease loading time)
However, I couldn't see the loading time differences.
So I renamed the file to LaunchScreen.storyboard to use splash image again.
But the problem began from here.
Even though I change images in LaunchScreen.Storyboard:-
Only black screen is shown shortly when I run my app on simulators.
Old LaunscScreen.storyboard is shown when I run the app on my iPad.
I took some.. actions but it didn't work.
(use image in Assets.cassettes, make sure Launch Screen File name in project option)
Is there anyone who can help me?
*I attached screenshots
(I'm using the latest Xcode, Version 9.1 (9B55))
I think I found out the root cause of the issue that lasted for more than a month.
At least in my case, the issue was occurred because there was no entry point in the LaunchScreen file.
After entry point was set I could see the LaunchScreen.
This is iOS issue(OS Level) iOS caching LaunchScreen.storyboard image resource and reuse it
why your action did't work because
app on simulators have not cached LaunchScreen so show black screen(LaunchScreen.storyboard not found)
iPad has cached and used LaunchScreen Resource(LaunchScreen.storyboard) so old Resource shown
Common solution is delete app or shut down and on iPhone or iPad for removing cashed resource. iOS mananing this resource in Srpingboard(OS Level) so It is not a complete solution but promotes the cache to be quickly erased from OS. just waiting.. until iOS erase it
I have an image set in my asset catalog and I have it set for my UIImageView in my launch screen xib. I know the launch screen shows up because it has a label that is showing when I launch the app on my device. I can see the Image and the label in the interface builder, and even in the simulator, but when I launch the app on my device the image is not there.
Does anyone know what might be causing this, and or have any good ways to troubleshoot?
I have tried quitting xcode, doing a clean, deleting the derived data reset the simulator. I have removed and added the asset I want to show up. I removed and re-did the constraints on the launch screen. I have had no success and it is driving me a bit crazy so any help is much appreciated.
Also I have two different targets so this may be contributing to the problem, but the strange thing at one point in time I did have the uiimageview showing up on the device.
I know what causes this issue, i guess when you first installed your app on your device you did not add image to your launch screen after that you've added the image next time. Right?, iOS picking up an old launch screen so I would suggest you to uninstall your app once and re-run the app.
I'm trying to use Xcode's LaunchScreen storyboard as my launch screen? All the questions that have previously been asked about this refer back to the old launch image or .xib method - trying to do it now with the new LaunchScreen storyboard that Xcode automatically generates instead. I've selected the LaunchScreen storyboard as my launch screen file in my Deployment Info:
The storyboard itself confirms that it is set as the launch screen in it's file inspector.
And the info.plist file reflects this as well.
And yet, it doesn't work. The LaunchScreen storyboard never shows - it just goes straight to the first screen in my main storyboard. Using Xcode 7.2 and deploying to iOS 9.
Enable these two settings for the LaunchScreen.storyboard
If you are using xcode 11.2 you'll need to remove the app and execute it again to see the launch screen. I have to do this every time I modify the launch screen in order to see the new changes.
Another thing to make sure is that Launch Screen File is set to Launch Screen.storyboard
**Delete the app from the device. Re-run. **
In my case I had all the suggested settings set correctly but continued to have the original blank launchscreen. In the spirit of AmJa's suggestion regarding a "cache" problem, I deleted my app from my device and reinstalled. Reinstalling did the trick for me on both my devices and simulators.
In case anyone else runs into this issue, I resolved it by simply deleting the ViewController on my LaunchScreen storyboard (leaving me with an empty storyboard), creating a new ViewController and resetting the Storyboard entry point to that new ViewController. There may be some sort of bug with XCode 7.2 with respect to the LaunchScreen storyboard and default entry point into the auto-created View Controller, but then again, I've tried replicating this 3 times and it hasn't ever repeated itself, so maybe not.
In storyboard, in ViewController scene, I had to check Is Initial View Controller for storyboard to be seen as Launch Storyboard.
Suprisingly this is not checked when you add first View Controller. Xcode 11.
Just in case it helps someone.
Scenario, I created my new project and copied a old Launch Image from another project. And then started getting the launch image but when I wanted to change it to new image then still i was viewing the old image it was stuck for ever as launch image no matter what I do.
Then I reset my Simulator and restarted my iPhone and there you go I stared getting the new image. This looks like that somewhere in the documents or cache the devices store the old image until you reset the phone.
Thanks
As #abanet, mentioned in his answer, anyone who uses Xcode 11.2 and above, they have to delete their app and launch it again to see launch screen changes. It's not reflecting immediately. It looks like a bug from Xcode definitely not an intension.
How to fix for Xcode 11.0 and above:
Do this: https://stackoverflow.com/a/41287094/2190175 if you haven't already, and after that:
Delete app from device / simulator
Restart device / simulator
Reason: Launch Screen part of storyboard is cached during development and doesn't change until you remove app from device / simulator and reinstall it completely.
Other solutions didn't work for me, but this did:
Toggle on and off Device Orientation (e.g. support Upside Down) and Hide Status Bar in General.
I'm not sure which one did the trick, but it's working now.
If you don't see anything and your Launchscreen.storyboard only has an ImageView in it, then it might actually be showing the storyboard but not the image. Try putting a button in it or something. I've discovered that my Launchscreen.storyboard is actually showing but won't show any images and I don't know why.
The issue can be also that the "LaunchScreen.storyboard" is not added to this target.
To fix this open "LaunchScreen.storyboard" then press on "File Inspector" and under "Target Membership" add it to the needed target.
I tried everything mentioned here, the only thing that worked for me was creating a new LaunchScreen file. I'm using Xcode 12.1
(Don't forget to update the reference in the targets settings)
I was banging my head against a wall with this since Xcode 10.1 does not include a launch option for the new 11" iPad Pro when you create a new iOS Launch Image set, and without it, the iPad Pro doesn't display correctly, leaving me no choice but to get this working with a Launch Screen storyboard.
I tried combinations of so many things, but I wanted to post what ended up making it work 100% of the time (which was, in fact, a combination of a number of things).
As you have no doubt read, for the UIImageView within the Launch Screen storyboard, you should NOT include the extension (.jpg or .png). So many posts say that, but leave out that the reason is that you should create a new image set within Images.xcassets (NOT Launch Screen image set, but just image set) and name it whatever you want (for instance, "Launch-Default"). Then, drag and drop the desired .jpg or .png into the new image set. You will then use the name of that image set within the UIImageView in the storyboard and everything should work fine (the image should even show up inside of Interface Builder).
Also, within the General settings for the project, make sure to set the Launch Screen File to your new storyboard.
You need to add App orientation specific Launch Screen.
LaunchScreen Portrait: https://app.box.com/s/hfoeuvsy68iu913keb8p5hs1z9fdz3jk
LaunchScreen Landscape : https://app.box.com/s/o9q5nkrvk2ewdh57oiiar85zf658olgj
Drag LaunchScreen.storyboard & LaunchScreenBackground.png to Xcode sidebar. Then specify LaunchScreen in Xcode General page. See attach image
In my case, the problem was that the image for the logo was taken from a different target. Make sure that the image is from the main target of the application, and reset the simulator via menu Device/Erase All Content ad Settings...
In my case a few image views cover the whole parent view of the launch screen (e.g. pinned to the view edges). I had to uncheck the Resize view from NIB in the Attribute inspector for the launch storyboard and finally it worked for me (just do not forget to manually delete the old app from the simulator)
In my case the background color of the view (full screen) was set to a "missing" color literal! After trying all above of course ;(
A jpg image does a problem change the extension to png or use another png image
Worked like a charm for me
in xcode9 swift4 LaunchScreen storyboard, use .jpg image & uncheck clear graphics context for imageview. it's absolutly working.
I'm trying to get the Launch screen to display instead I get the default black screen.
I remember I've had this issue in the past and is something really silly but I can't remember what it is.
I have a LaunchScreen.xib. I've set in my target -> info to use LaunchScreen and not image catalog. I am running iOS 8 and using Xcode 6.1. I tried on all iPhone simulators and iPhone 4s.
I can't think what more info to give than that.
For those who are still looking for another answer here's what worked for us:
Our launch xib only contains an imageView in the middle of the view. For some reason the image never showed (but the view was there, checked it with changing the background color).
The solution was to move the image file out of the image catalog and just drop it in the project as a standalone file. Pretty strange considering when we tried other images from the catalog they appeared correctly but not this one. Anyway, I hope this helps someone!
I had the same issue.
Turned out that I had earlier tried to attach a viewcontroller file with the launchscreen. To fix:
Go to launch screen
Click Connections Inspector in right pane
Remove all connections.
Accoring to #doctorBroctor: also go to the File's Owner tab and remove the connections there.
Go to your launch screen
Go to file inspector
Check the checkbox for "Use as Launch Screen"
I have tried with:
Deleted Launch Screen File.
Tapped on Use Asset Catalog in Launch Image Source and added Splash screen Images as desired in the image asset.
Deleted Previous Project on Simulator or Device. Clear the Project.
Run Again and it is showing now.
One reason for why you might experience the black screen instead of your launch screen is that the .xib file might not get copied in your build phase. At least that was my issue that caused my app to show the black screen even though I had done the steps you describe.
So, double check that your LaunchScreen.xib (or whatever it is named) appears in:
Your target -> Build Phases -> Copy Bundle Resources
And if not, make sure to add it. That resolved my issue.
For me the problem was that I hadn't selected the LaunchScreen.storyboard in the General tab of the project settings.
I've experienced the same issue. The solution for me was simply delete the app, reboot the device, then reinstall it. I think iOS caches the Launchscreen, and this cache is not invalidated every time when it should be.
I had the same issue in iOS 9 as well. Deleting the old app in simulator alone is not enough. Simulator has to be quit launched. It worked for me.
I fix it by select the "is Initial View Controller" in storyboard.
Make sure to delete the installed app from the emulator. Then run the app again from xcode (product->clean, product->run).
That worked for me.
I've looked at all the above answers, it helped a bit. Especially the answer by Suragch put me in right direction.
The LaunchScreen.storyboard isn't showing up, even after applying simple background colour to the view and removing the image.
Firstly, I cannot see the "LaunchScreen.storyboard" as shown in the image
This was because, some reason the LaunchScreen.storyboard wasn't added to the build Target.
Solution: Ensure the LaunchScreen.storyboard is included to the build Target.
Also, Choose the LaunchScreen.storyboard from the drop down as shown in above pic.
I hope it helps someone!
I found this old post 'cause my launch screen WAS working, then it stopped. I thrashed around for a good while and then realized this, undocumented problem:
If your launch XIB or storyboard file has a UIImageView with an image whose name contains a space, the entire screen won't load.
I only had a centered UIImageView in my LaunchScreen.xib that contained an image (.png file), and had the same black screen showing.
I removed the image (the .png file) from the project, added it again with new name, and used the new image.
Make sure to use empty Launch Screen File, then Xcode would use Launch Image Source.
Make sure you have "is initial View Controller" checked in interface builder.
I tried pretty much everything else but this finally fixed the problem and now it works in simulator as well as the device.
New feature in the iOS 8 SDK: you can now use a storyboard scene in place of your app’s launch images.
Create a blank storyboard file named LaunchScreen.storyboard.
Go to your target settings and, on the General tab, select the storyboard as your Launch Screen File. Xcode will add a corresponding UILaunchStoryboardName key to your app’s Info.plist. When this key is present, Xcode will prioritize it over any launch images you might have set.
Add a view controller scene to the storyboard. Add some subviews to the scene and position them with constraints. When you launch the app on a device, the OS should use the scene as the launch screen.
For more information check out this blog post by Ole Begemann "Replacing Launch Images With Storyboards".
Reset Simulator working for me
For iOS 14 and newer:
Device > Erase All Contents and Settings...
For iOS 11 and newer:
Hardware > Erase All Contents and Settings...
For previous versions:
Simulator > Reset Content and Settings...
Your launch image should be a PNG. A JPEG may work under certain targets, but you should use PNG anyway.
I got a problem with my applications keyWindow on iPad.
I designen my app for iPhone and added the iPad support later by setting the device family and adding a new storyboard for iPad.
Everything is fine so far, I can open the app on the ipad and even the interface shows up as I customised it for iPad.
Now here comes the problem:
I don't know why, but the iPad version of my app doesn't have a keyWindow.
I need that because I display a loading dialog at the beginning that should lock the screen for user interaction, so I added it to the main window. On iPhone this works fine.
I figured out that "[UIApplication sharedApplication].keyWindow" gives me null, but only on iPad, whereat "[[UIApplication sharedApplication].windows objectForKey:0]" gives me the window object, which of course must exist because the app shows the complete ui.
The source files for ipad and iphone are, of course exactly the same, but I think I missed something when I added the iPad support later...
I already tried to set the window object in the application delegate to makeKeyAndVisible manually but with no luck. ([self.window makeKeyAndVisible];)
Does anyone has an idea what I have to do to make this working?
Kind regards
Ok I solved it myself.
I had to apply the makeKeyAndVisible method to my main window where I want to access it as keyWindow. I don't know why it doesn't work in the Application Delegate or why I have to set it manually for iPad and not for iPhone at all, but it works now.
If anyone knows why feel free to enlighten me.