I have an application that is currently named "xxxx". The app runs and works perfectly without any problems. However, I have reached a stumbling point. When I try to load the application onto my iPhone, the pictures on my picker view seemed to have disappeared for some strange reason. I've done multiple hours of debugging and everything checks out normal. I then decided I wanted to change the product name from "xxxx" to "xxxx Redo". As soon as I did that, the application loaded perfectly normal (with the pictures in the Picker View as it should be).
In conclusion, it comes to find out that there is no actual bug in the programming aspect of it. However, my question comes up as to why does it not load the correct way with the original product name but then loads the right way when the product name is changed?
The second part of my question is if anyone knows of a way to fix the original application so that way it displays correctly again with the original name?
I have tried the following:
Cleaning the app
Trashing the .app file and rebuilding
Deleting the app on the iPhone and rebuilding.
These things sometimes just happen, you can try the following extra steps:
clean build folder in XCode (press alt while clicking Product menu)
reboot the phone (poweroff/poweron)
I have seen cases where it made a difference.
Related
I am building an app for Mac which logs into a website based on login and password collected from textfield and secure text field, then app opens an url which is created in my app based on date range selection with use of two date picker cell calendars. Next app displays html data in webWiev (using WKWebView), converts html to string using extension NSAttributedString and then saves retrieved data as txt file. Everything works as expected as long as app is run from Xcode "play" button. Problem is if I archive this app and launch it, it will bring up an empty window without any button, calendar or textfield. There are no errors, no crash logs on organizer, nothing.
I decided to perform a little test. I build another view controller with only one button which upon clicking will show my app main view controller. After archiving this modified app and running it outside of Xcode a window shows view controller with one button which is correct. But after clicking it nothing happens. App works great if running "inside" Xcode, a pushbutton shows main ViewController correctly. Do You have any clue what can be wrong? thank You!
Edit 1. So I found a discussion on apple which mention this problem. It is associated with IB WKWebView and problem is already known since some time. Now I have to get around the problem. Apple forum link: https://forums.developer.apple.com/thread/116047
Did you embed WebKit.framework to your app?
After comment that I wrote, I founded a solution and solved with this method.
Please check it out.
I have a problem that recognized recently but could not find the solution.Generally when we run an application in simulator we get the following folders:documents,library,tmp,etc.Now if I close the application suddenly in simulator then in library folder we can find caches folder and in that snapshot folder.In this folder we get one folder with bundle identifier name and in that we get screen shot of the application where we closed it.Now my requirement is to stop those screen shots when I close application
You need to hide your view in
- (void)applicationDidEnterBackground:(UIApplication *)application
This is standard behaviour, as it gives the impression that the app resumes quicker if it appears to go back to where it left off - even if technically the app is not quire responsive yet. All you need to do is put something else on the screen in the above method and this will now become the first thing that comes to the front when a user opens your app back up
I am having a bug that has got me stumped. I created a label a short while ago that was just a placeholder to be replaced in the future. Finally, I get to replacing it with a button, so I delete the UILabel and put a UIButton in its place (keep in mind this is all in Interface Builder). When I run the program in the simulator, the new button isn't there and instead there is the old label which has been deleted. I have searched my whole program and I have no reference to this label, it is completely out of my program, yet it still appears in IB and my new button does not. I have tried Cleaning the program and quitting Xcode several times to no avail. If anybody knows of or has faced a similar problem I would love to hear your solution.
Thanks,
Kyle
It seems in your case NIBs are cached in Simulator, delete your app from inside Simulator and rebuild/reinstall then it shall be fine.
With xcode 3 I would have guessed that you did not save the xib file within Interface Buidler.
Still in xcode 4 I sometimes get the impression that not all changes come to effect for whatever reason. As if one or two source files do not get compiled at all.
Then I close xcode, save everything and start over again.
I am learning iPhone development, and have built a simple app that has an image that changes to another image when you tap it.
If i build it to the simulator, it works fine, but if i build it to the device the images dont appear. i feel like they aren't being copied across. I have checked they have been named correctly and i have made sure i imported them to 'resources'
I dont think it is a problem with the code because i added a thing to also make text appear when the image is tapped, and this works, so a button is still there doing something, it just doesn't have an image on it.
-(IBAction)changeImage:(id)sender {
[fortuneCookieButton setImage:[UIImage imageNamed:#"Image2.jpg"] forState:UIControlStateNormal];
label.hidden = NO;
}
-(IBAction)restoreImage:(id)sender {
[fortuneCookieButton setImage:[UIImage imageNamed:#"Image1.jpg"] forState:UIControlStateNormal];
label.hidden = YES;
}
Does the case (upper/lower) of all your file names match exactly for all letters? Source code & project & Mac?
just to share with you, I had this same problem and I found out the solution: I was using lower case in the file name and upper case in code. The thing is on Simulator there was no problem because Mac file system is case-insensitive but in the iPad it didn't work because iOS file system is case sensitive. ;-)
I had this problem. Bizarrely the image had been working in the past, then just stopped appearing on the device one day.
It was a PNG.
I opened it in GIMP and saved it again. Then it went back to working again. No idea why.
Crazy.
Is it the case with only PNG images or also for JPG & other format you're having same issue. If it's only for PNG image, then it might be possible they're not being compressed. Try the following way.
Select your project target & go into its info. Here go into the build tab. In the configuration select "All Configurations" from Configuration section. Now, write "COMPRESS_PNG_FILES' in the search bar. And see the status of the check-box. IF it's unchecked, then make it checked & it will work. But if it's already checked, then there should be other reason in your project.
In the later case, I would request you to create a new dummy project & check by adding 2-3 images whether it's coming or not.
Clear caches delete the previous build and try again.
I also had same problem, and it was caused by a different reason: my project has image files with the same name! Since my app has many images, I inadvertently included images with the same name. Simulator is more tolerant and show the images just fine; however, when built on device, neither of the images of the same name were copied to the build directory. Obviously xcode is more picky for device: since all images go to the same directory, the file names must be different. When there are files with the same name, xcode refuses to copy any of them since it doesn't know which one to pick.
I have the same problem. In my case, the issues is to do with the UILabel above the UIImageView that shows the image. When I change the type of UILabel to AttributedText (In Property Inspector), my real devices cannot load the image. When I change it back to Plain, it works now. I use XCode 6.2.
on top of all suggestions - it wasn't work for me until I restarted the device
I want to make two different app icons, and programmatically switch betweem then. When the user quits the app without finishing an workflow-process, then I want to switch to an icon that will indicate that there's something undone when launching the app. Well, just theoretically, just for testing.
I think that the icon file is just a normal file as any other, so if I would just rename it programmatically and then give another icon file the name of the icon file that's named the Info.plist, then the app should show up with another icon, right? Would that be possible? Or do I have no access to that file for renaming it?
icon file stored in "application bundle" folder.
And your application has read-only rights to this folder
There is no oficial way to change/rename thees files.
You can add integer badge to youy icon
[[UIApplication sharedApplication] setApplicationIconBadgeNumber:666]
But it is not official method.
It sounds like a good idea, and I would definitely give it a try, but I get the feeling this isn't possible.
I believe the app icons get stored in another file structure global to the iPhone. I say this because after I installed 3.0 beta 5, I saw a bug where the app icon disappeared from an app I developed. Then after installing two new apps from the app store, the new app's icon appeared on my app, and the 2nd new app's icon appeared on both new apps. Essentially the new app icons shifted to fill in for the missing app icon.
Removing and re-adding the apps, then rebooting the phone, restored the icons properly.
I don't know for a fact how the app icons are managed and stored on the phone, of course, but it would fit to say they are stored in some sort of cached list that gets rebuilt occasionally, perhaps after a reboot. That would mean even if you could change the icon from within your app, it would take more effort to see the effects on the phone.