nsdictionary

I have an array, that when printed out looks like this: ( ( databaseVersion, 13 ), ( lockedSetId, 100 ) ) Would it be possible to filter this using an NSPredicate (potentially by the index in the array). So something like: give me all rows where element 0 is 'databaseVersion'? I know that if I had an array of dictionaries I could do this with a predicate similar the one found here , but I found that when using dictionaries and storing a large amount of data, my memory consumption went up (from ~80mb to ~120mb), so if possible I would to keep the array. Any suggestions on how this might be done

I've already used this method in Swift 2 var myDict: NSDictionary? if let path = NSBundle.mainBundle().pathForResource("Config", ofType: "plist") { myDict = NSDictionary(contentsOfFile: path) } But don't know how to read plist in Swift3 without using NSDictionary(contentsOfFile: path) The native Swift way is to use PropertyListSerialization if let url = Bundle.main.url(forResource:"Config", withExtension: "plist") { do { let data = try Data(contentsOf:url) let swiftDictionary = try PropertyListSerialization.propertyList(from: data, format: nil) as! [String:Any] // do something with the

I have a plist like this: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>highscores</key> <array> <dict> <key>highscoreInSeconds</key> <string>9</string> <key>levelName</key> <string>1</string> <key>name</key> <string>Black</string> </dict> <dict> <key>highscoreInSeconds</key> <string>12</string> <key>levelName</key> <string>1</string> <key>name</key> <string>Black</string> </dict> </array> </dict> </plist> Now I want to sort this by the highscoreInSeconds . NSArray

This question already has an answer here: NSMutableDictionary is adding quotes to keys and values - why? 2 answers So I have an NSMutableDictionary that I populate, but when I output the contents to NSLog, the key and value for the entries entered in the for loop show up differently, and the final NSLog call doesn't even output anything. What's going on here??? Please help! Why are the quotes around the entries added in the for loop??? NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys: numberOfPhotosAsString, @"PackageFileCount", wtID, @"wtID", uploadType, @"type"

I'm using KVC to serialize an NSObject and attempt to save it to NSUserDefaults , which is giving me an Attempt to insert non-property value when I try to store my NSDictionary . Following are the properties of the object in question, MyClass : @interface MyClass : NSObject @property (copy,nonatomic) NSNumber* value1; @property (copy,nonatomic) NSNumber* value2; @property (copy,nonatomic) NSString* value3; @property (copy,nonatomic) NSString* value4; @property (copy,nonatomic) NSString* value5; @property (copy,nonatomic) NSString* value6; @property (copy,nonatomic) NSString* value7; @property

I have a NSDictionary that parsed to an array one of the element is date, i tried using [startimeArray sortUsingSelector:@selector(compare:)]; (starttimeArray) is my date but it only arrange ascending. how can i sort in descending order. thanks Sort the array by puting NO is ascending parameter: NSSortDescriptor *descriptor=[[NSSortDescriptor alloc] initWithKey:@"self" ascending:NO]; NSArray *descriptors=[NSArray arrayWithObject: descriptor]; NSArray *reverseOrder=[dateArray sortedArrayUsingDescriptors:descriptors]; vikingosegundo You can use a comparator block NSArray *sortedArray = [array

I have the code (stripped down): CFDictionaryRef *currentListingRef; //declare currentListingRef here NSDictionary *currentListing; currentListing = (NSDictionary *) currentListingRef; And then I get the error: Cast of a non-Objective-C pointer type 'CFDictionaryRef *' (aka 'const struct __CFDictionary **') to 'NSDictionary *' is disallowed with ARC What am I doing wrong? How do I convert from a CFDictionaryRef to an NSDictionary ? ARC changed the way bridging works. NSDictionary *original = [NSDictionary dictionaryWithObject:@"World" forKey:@"Hello"]; CFDictionaryRef dict = (__bridge