They can be found in more than one place: ~/Library/Preferences/com.example.myapp.plist ~/Library/SyncedPreferences/com.example.myapp.plist and if sandboxed ~/Library/Containers/com.example.myapp/Data/Library/Preferences/com.example.myapp.plist ~/Library/Containers/com.example.myapp/Data/Library/SyncedPreferences/com.example.myapp.plist
I am going through with screenshot and step by step. Please follow this and you will get your answer. First you have to create Property List through your Xcode. Step:1 Step:2 Step:3 Save data on your save button action : // Take 3 array for save the data ….. -(IBAction)save_Action:(id)sender { NSArray *paths = NSSearchPathForDirectoriesInDomains … Read more
I try to write a quick and simple list of common use cases, because as @rmaddy says this answer could fill a book chapter: NSUserDefaults: stores simple user preferences, nothing too complex or secure. If your app has a setting page with a few switches, you could save the data here. Keychain (see SSKeychain for … Read more
See Serializing a Property List NSData* plistData = [source dataUsingEncoding:NSUTF8StringEncoding]; NSString *error; NSPropertyListFormat format; NSDictionary* plist = [NSPropertyListSerialization propertyListWithData:plistData mutabilityOption:NSPropertyListImmutable format:&format errorDescription:&error]; NSLog( @”plist is %@”, plist ); if(!plist){ NSLog(@”Error: %@”,error); [error release]; }
Johan is right — you’re not allowed to modify your app’s bundle. You have two good options for where to save your dictionary: the documents directory, which is backed up by iTunes when a user syncs their device; or the caches directory, which is not backed up. If you don’t need to have the data … Read more
Here’s the simplest way: NSDictionary* dict = …; [dict writeToFile:@”…” atomically:YES]; See the documentation for -writeToFile:atomically:.
You can use these rules of thumb to decide what storage model will work for your app. If the data fits in memory entirely and is relatively unstructured, use plist If the data fits in memory entirely and has tree-like structure, use XML If the data does not fit in memory and has a structure … Read more
Apparently the file is not in a writable location, so I created it in the documents directory. var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as String var path = paths.stringByAppendingPathComponent(“data.plist”) var fileManager = NSFileManager.defaultManager() if (!(fileManager.fileExistsAtPath(path))) { var bundle : NSString = NSBundle.mainBundle().pathForResource(“data”, ofType: “plist”) fileManager.copyItemAtPath(bundle, toPath: path, error:nil) } data.setObject(object, forKey: “object”) data.writeToFile(path, atomically: true) … Read more
After iOS 10 you have to define and provide a usage description of all the system’s privacy-sensitive data accessed by your app in Info.plist as below: Calendar Key : Privacy – Calendars Usage Description Value : $(PRODUCT_NAME) calendar events Reminder : Key : Privacy – Reminders Usage Description Value : $(PRODUCT_NAME) reminder use Contact : … Read more
You can listen for NSUSerDefaultsDidChange-notifications with this: [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(defaultsChanged) name:NSUserDefaultsDidChangeNotification object:nil]; Whenever the NSUserDefaults changes, defaultsChanged will be called. Don’t forget to call [[NSNotificationCenter defaultCenter] removeObserver:self]; when you want to stop listening for these notifications (you should also do this when object gets deallocated).