I just upgraded to iOS 4.1 SDK and now when I run my app in the simulator one of the images (the only one really) that was working fine before the upgrade is no longer showing up in my view. I've tried removing the file and re-adding it to the project, cleaning all targets and running a build, and making changes to the XIB where the UIImageView is configured to for it to recompile it, but no dice. It's worth noting that my Tab-Bar images came through just fine. Any ideas?
If the UIImageView is created inside a .xib, open it up in Interface Builder: can you see the image in the "preview"? If not, then it can't find the image to begin with. Perhaps the file has been renamed?
Look inside the application bundle in the Finder. Is your image file present? If not, is it still referenced in your project? Check Xcode to make sure the file name isn't in red (i.e. missing).
Maybe they've changed the 4.1 simulator to be (or rather, pretend that the filesystem is) case-sensitive?
Does the app work on a 4.0 device?
Related
I believe I am making a silly mistake. But I cannot figure it out.
I have an image named Default.png that I have added to my project. Now when I go to General and then Launch Images I drag and drop this Default.png to the 2x window for my app. When I go to build the project and try it, I get this error:
"The launch image set named "LaunchImage" did not have any applicable content."
What's the problem here? I've also seen that simply dragging and dropping the Default.png should do it, but I think that's for older versions.
Any ideas?
Thanks
Search for LaunchImage keyword in your .plist file and delete it. Then, try assigning the image again by dragging as you already did before...
This case raised in Xcode 5.0 + iOS 7.
Apple use Images.xcassets to group App Icons, App Launch (Default) Images in Xcode 5.0 + iOS 7.
For solving the problem of Asset Catalog Compiler Error
The launch image set named "LaunchImage" did not have any applicable content.
Approach:
Putting suitable size of images into LaunchImage.
For example:
Should be 640x960 dimensioning in iPhone Portrait iOS7 2x.
Should be 640x1136 dimensioning in iPhone Portrait iOS 7 R2.
Reference from iOS App Programming Guide:
Create and Set iOS Launch Images
Launch images are displayed while your app is launching on iOS. A launch image matching the device resolution appears as soon as the user taps your app icon.
App Launch (Default) Images
Specify the launch images for your app in your Xcode project settings. In Xcode 5.0, specify these images on the General tab of your project settings; in older versions of Xcode, this tab may have a different name. Xcode places your launch image files at the top-level of the app bundle and configures other project settings as appropriate. Specifically, Xcode adds the UILaunchImages key to your app’s Info.plist file automatically if your app runs on iOS 7 or later. That key tells the system the name of your app’s launch image files. For earlier versions of iOS, the system uses the launch image filenames to decide which image to load.
The same error has been resolved by adding the exact sizes of launch images for different iOS devices.
I tried everything here, deleted the .app and rebuilt each time, and nothing worked. I finally got fed up and switched back to the old style of launcher image specification (Project Settings Window -> General -> Launch Images -> Source -> Don't use asset catalogs.) That worked!
I had this problem as well. Make sure of a couple of things:
Aspect Ratio is what Apple expects, in other words square
The sizes are correct, 60pt (for example) should be 60x60
60pt #2x should be 120x120
After I fixed the sizes the app compiled without errors but I think the most important thing is the aspect ratio.
In my case, with Xcode 7, the Images.xcassets was missing from the Build Phases, under Copy Bundle Resources. Then I just added it manually and the problem was gone.
Try looking at the code for "LaunchImage" and rename it to "Default"
Check and compare carefully if your image size matches the expected size. In my case I was using a wrong size, but when correcting the project built fine.
Check this attached image to see where you can compare them
I have problem with images on my iPhone when I delete it. I clear image from disk, I remove reference in XCode, I delete app from my iPhone and when I run app again the image is still there.
Any suggestion how I can completely remove image from my project?
Lit sounds like you are adding images to your Xcode project and copying them to the app. Then you removed them from Xcode and observe that they aren't removed from the app.
In this case, clean the project.
Xcode isn't very good at removing files from an already built app when the source file is removed from the project.
I've just finished my app for iPhone and it is working fine. I now want to make the app universal but am getting a black screen when running it on the iPad simulator. Here is what I have done so far:
When electing to make universal, I allowed xCode to create my "-iPad" version of my main nib; Therefore, I have MainWindow.xib for iPhone and MainWindow-iPad.xib for iPad. I have checked my plist file and have confirmed that both entries are present
Have double checked each UI component in the new iPad version to make sure all connections are made identically to the iPhone version. I also double check that the classes are correct
I have made sure that the "visible at launch" and "full screen at launch" options are selected
I read somewhere that removing the "-" worked for someone and have tried renaming my nib and plist entries
I am assuming that my app would then load the proper nib. Obviously I'm either wrong or have some configuration not right
On the other hand, if I need to make some change in my didFinishLoadingWithOptions to force they selection between my nibs - well I must admit I don't know how to accomplish this either.
Thanks!
If the app doesn't crash, than it means it can find the black screen.
Truncating the cache is done in Product -> Clean and also what you could try is "Reset" on the iOS simulator.
Further more, what you could check is if the "view" is linked correctly in your nib. (see image).
OK, after much trial and error, I have gotten this to work; Although, I'm not quite sure which exact steps solved the problem, I have a sneaking feeling it was some of the settings I had for the versioning of the app.
I created a new test app for iPhone and then converted it to iPad. Of course this worked unlike my app. I then compared everything I could think of between the apps. I changed the supported version from 3.1 to 4.0 on the Target -> Summary tab. I then check my build settings and changed everything in there to 4.0 as well. Finally, for each .xib file I set the deployment to "Project SDK Version (iOS 4.3) and the Development to "Interface Builder 3.1" because that is what my test app was set to. To be honest, I don't even recall altering these or do I really even know if this has an impact all I know is that I did change them as described. Did a project clean, reset the simulator and now it is working. I'm wondering if it was the 3.1 was too early for the iPad...
Anyway thanks.
I upgraded current target for iPad (to try and make a universal app) without making any changes and it doesn't seem to have worked. The only .xib file that was added to the iPad resources folder was MainWindow-iPad.xib, and no others.
Anyway disregarding that I tried to switch the active executable to ipad simulator. It runs but the layout has gone completely crazy. I can't fix it because there is no .xib in the iPad resources folder. :/
You have to convert your other NIB files manually. Interface Builder has a menu command to get you started. Just open all your NIBs one after the other, convert them to iPad dimensions and save them under a new name. Then, in your code, make sure that you load the correct NIB file depending on the platform your app runs on.
I just updated to iPhone SDK4. The problem I am facing is - I was writing an app in iPhone sdk 3.0 just open that project in xcode 3.2.3 made some changes in xib file, now when i run this project in simulator the user interface (xib) appearing blank (with black color).
Any idea why this is happening...?
Thanks
Saurabh
You may be trying to run directly from IB (with cmd+R) this makes it only load the view you're currently editing and does something similar to what you're describing. Save, switch to xcode and run from there, see if that helps. :)