I have used sortUsingSelector to sort an NSMutableArray of custom objects. Now I'm trying to sort an NSMutableArray containing NSMutableArrays of custom objects. Can you use sortUsingSelector on an NSMutableArray, or does it only work for custom classes? ...
Are there any special methods to make swapping elements in an NSMutableArray easier or more direct? ...
I want to copy items from an array that are not 0 or @"" (depending if NSNumber or NSString). The following code, however, does not work. What am I doing wrong? for (int i=0; i < [logbookItems count]; i++) { NSLog(@"%@, %@, %@", [[[logbookItems objectAtIndex:i] objectAtIndex:1] class], [[logbookItems objectAtIndex:i] objectAtIndex:0...
I'm trying to to return a NSMutableArray but I got this error in the console: 2010-10-01 14:12:21.348 Phonebook[1424:a0f] +[LinkedList getListArray]: unrecognized selector sent to class 0x1000053e8 The method code is: - (id)getListArray { ListNode *tmp = iterator; iterator = head; NSMutableArray * list = [NSMutableArray...
for (NSString *CurrentArtistName in ArtistNamesArray) { CurrentArtistName = [CurrentArtistName stringByMatching:regEx capture:1]; NSLog(CurrentArtistName); [ArtistNames addObject: CurrentArtistName]; } why is this closing my app ? There are no errors in the coding and the NSLog is logging the CurrentArtistName ? i really ...
I'd prefer not to change the way anArray is designed because it is also used elsewhere as a dataSource for a UITableView. The odd number values are "user names", and the even number values are their matching "dates". (The "pairs" must remain together.) How would I sort "by user name"? How would I sort "by date"? Should I be using s...
I have an array of custom objects. One of the properties of these objects is an NSString. I want to sort by that property. Because it is an NSString and not an NSNumber sorting is a little more difficult. Is there some kind of class method to help in this case? How should it be done? ...
I'm trying to sort an array of people objects. The class looks like this. Person ------- name phone I have an NSMutableArray filled with these objects. I want to sort this array by the name of each person object. This is the code I tried. NSSortDescriptor *desc = [[NSSortDescriptor alloc] initWithKey: @"name" ascending: YES]; [pers...
I'm querying rows from my sqlite database using Fetch and loading the results into a NSMutableArray myDataArray. What I want to do is to store the values in myDataArray into my application's preferences plist file. But when I run the code below I get the following error: [NSUserDefaults setObject:forKey:]: Attempt to insert non-property...
Hi all, I need to remove all objects from a NSMutable Array. I can't seem to do this by enumerating as the code crashes. Can anyone tell me the best way to do this with code example if possible ? Many thanks, Martin ...
I have an NSMutableArray object that I want to add custom methods to. I tried subclassing NSMutableArray but then I get an error saying "method only defined for abstract class" when trying to get the number of objects with the count method. Why is the count method not inherited? I read somewhere else that I will have to import some NSMu...
I made a class called Person. It looks like this Person ------- Name Points Then I created an NSMutableArray called team. It contains several of these person objects. I create several teams. Then I created another NSMutableArray called allTeams. It holds all the team arrays. I want to sort the allTeams array by the total number of p...
I made a custom class. This is the h file @interface Player : NSObject { NSString *name; NSNumber *points; } @property (nonatomic, retain) NSString *name; @property (nonatomic, retain) NSNumber *points; -(id) initWithName:(NSString *)n andPoints:(int)p; @end This is the m file #import "Player.h" @implementation Player @sy...
i tried doign this: Values = [[NSSet setWithArray:Values] allObjects]; and no sucess, Thanks ...
I have a program which works normally. Then I downloaded some code from http://github.com/matej/MBProgressHUD to show a progress meter when doing something. This is the code that makes the progress meter pop up. [HUD showWhileExecuting:@selector(myTask) onTarget:self withObject:nil animated:YES]; This will show a progress meter while...
I archive an array (NSMutableArray) of custom objects that implement the . Once i load it froma file to a retaining property @property (nonatomic, retain) NSMutableArray *buddies; the release count of the object is 2 (correct, it's 1of autorelease + 1 of retain of the property) but then noone releases it and the retain count becames 1, ...
Still "somewhat" of a newbie... I have an NSMutableArray that stores filenames - when a user clicks a UITableView the corresponding selected cell will pass the certain filename in the array to MPMoviePlayerController to play. It works, however if I exit out of the viewcontroller and come back, only the last video that I played will work,...
I had a navigation application that was working normally. In the table view, the last item is called "add item", and if the user pressed it, it would create a new object and pass it to another view where the user could enter the details for that object. When the user returned to the previous screen, the new object would show in the array...
I made a custom object that inherits from NSObject. Let's say I have an array of these objects. Then I want to make another object, that is a copy of one of the objects in the array. I do not want to simply point to an existing object in the array I want a copy. Is there an easy way to do this? ...
Hi, I would like to simulate the SMS Bubbles of the iPhone for my own app. I found some nice code overhere (FYI): http://vimeo.com/8718829 . It is a restyled UITableView. Exactly what a wanted. Here is the problem: - The Tableview is filled with an array of messages - It needs to be a NSMutable array because you want to add messages on...