nsdictionary

hi i tried to add values(book id,page number,notes) from NSdictionary to Plist but each time the new value replacing the previous one?but i need all values in plist my code for adding dictionary to plist is NSString *bid=@"95"; NSString *pnum=@"12"; userNotes=[[NSMutableDictionary alloc]init]; [userNotes setValue:userNotesTextview.text forKey:@"notes"]; [userNotes setValue:bid forKey:@"bookid"]; [userNotes setValue:pnum forKey:@"pagenumber"]; userNotesView.hidden=YES; _background.hidden = YES; userNotesTextview.text=@""; [self savingMetaData]; NSMutableArray *notes=[[NSMutableArray alloc]init]

Following code: [[NSUserDefaults standardUserDefaults] setObject:photoIdToPath forKey:@"photo_id_to_path"]; gives me the following error: Attempt to set a non-property-list object { 417675729 = "/Users/k06a/Library/Application Support/iPhone Simulator/7.1/Applications/21163736-DF6F-4E79-8196-6A966C81ED1B/Documents/417675729"; } as an NSUserDefaults value for key photo_id_to_path Here is photoIdToPath dictionary content analysis from Xcode debug console: (lldb) po photoIdToPath { 417675729 = "/Users/k06a/Library/Application Support/iPhone Simulator/7.1/Applications/21163736-DF6F-4E79-8196

I'm trying to add some additional key/value pairs to an NSMutableDictionary, using: Tag *tag1 = [results1 objectAtIndex:0]; [resultsDict setObject:[tag1 retrieveTextUpToDepth:1] forKey:@"image_url"]; Tag *tag2 = [results2 objectAtIndex:0]; [resultsDict setValue:[tag2 retrieveTextUpToDepth:1] forKey:@"majority"]; This adds the k/v pairs with no problem, except when I come to retrieve them, some of the values have been wrapped with double quotes: po extendedDataDictionary: "image_url" = "/images/mpsL/11727.jpeg"; majority = 3460; Both keys and values are NSStrings, with no quotes - so I'm

I am trying to filter out a NSArray of NSDictionaries. With my below example, I want dict1, dict2 & dict4 grouped in one array, dict3 & dict5 grouped in second array and dict6 in third array. I am getting this data in NSArray, so essentially the "orig" array below is my input and I know that I need to do grouping based on "Name" key. Instead of looping through the NSArray I though of using valueForKeyPath to return me array based on the key path but this does not work (crashes with logs -[NSMutableArray addObjectsFromArray:]: array argument is not an NSArray'). Any suggestion. NSDictionary

I did search on how to check if NSDictionary key exists or not and came up with the solution. But still it throws me an error saying adding null value to the key. I am not sure if my code is correct or not. If anyone has any idea about this can help me. NSDictionary *result; id myImageURL = [result objectForKey:@"url"]; if ((NSNull *)myImageURL == [NSNull null]) myImageURL = @""; id myImage = [result objectForKey:@"image"]; if ((NSNull *)myImage == [NSNull null]) myImage = @""; Check if null add nothing and if not add the value. But it still gives me an error dont know why. /****OUTPUT*****/