从plist阅读

Question

I have a plist which is an array, the file name is called startups.plist. I tried to read it into an array by the following code:

NSString *path = [[NSBundle mainBundle] pathForResource:@"startups" ofType:@"plist"];
NSMutableArray * wordList = [[NSMutableArray alloc] initWithContentsOfFile:path];

However, wordList is always 0 here. Printed the path when testing on device, and it gives me:

/var/mobile/Applications/CCBF94D9-389C-4D63-B023-F39653FDCEF4/My.app/startups.plist

Here's what the structure looks like of the plist:

the size of the array is 0. What am I doing wrong here?

Answer 1

initWithContentsOfFile: will not open plist file. Here is a sample:

NSString *errorDesc = nil;
NSPropertyListFormat format;
NSString    *path = [[NSBundle mainBundle] pathForResource:@"startups" ofType:@"plist"];
NSData      *plistXML = [[NSFileManager defaultManager] contentsAtPath:path];
NSDictionary *temp = (NSDictionary *)[NSPropertyListSerialization                     
                                          propertyListFromData:plistXML
mutabilityOption:NSPropertyListMutableContainersAndLeaves
                                          format:&format
                                          errorDescription:&errorDesc];
NSLog(@"%@",[temp objectForKey:@"Root"]);

Answer 2

You have to use NSDictionary since your plist is a Dictionary which has a key Root which is an array.

NSString *path = [[NSBundle mainBundle] pathForResource:@"startups" ofType:@"plist"];
NSMutableDictionary * dict = [[NSMutableDictionary alloc] initWithContentsOfFile:path];

NSMutableArray *wordList = (NSMutableArray *)[dict objectForKey:@"Root"];

I'm not sure about casting to NSMutableArray . Maybe you have to do

NSMutableArray *wordList = [NSMutableArray arrayWithArray:(NSArray*)[dict objectForKey:@"Root"]]