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POProperty Lists - Reading and Writing (iPhone)
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copied!<p>Alright, here goes. I'm making a very basic app, and I want the user to be able to store information between sessions. Basically, for them to save their game. There are only 7 Variables I need to save, all of them in are Integers.</p> <p>This is the code I have to save the game.</p> <pre><code>- (NSString *)dataFilePath { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; return [documentsDirectory stringByAppendingPathComponent:fileName]; } - (IBAction)saveGameAction:(id)sender { NSString *test1 = [[NSString alloc] initWithFormat:@"%d",varMoney]; NSMutableArray *array = [[NSMutableArray alloc] init]; [array addObject:test1]; [array writeToFile:[self dataFilePath] atomically:YES]; [array release]; [test1 release]; } </code></pre> <p>That works (For simplicity Sake, I am only storing 1 of the Variables, not all 7 in this example code. What doesn't work is retrieving the values from the Property List. Upon hitting the "Load" button, I want to take the Variable out of the List and put it back into the correct Variable. This is the code I have for that:</p> <pre><code>- (IBAction)loadGameAction:(id)sender { NSString *filePath = [self dataFilePath]; if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) { NSArray *array = [[NSArray alloc] initWithContentsOfFile:filePath]; NSString *testing = [array objectAtIndex:0]; [array release]; varMoney = [testing intValue]; NSString *testMessage = [[NSString alloc] initWithFormat:@"%d", varMoney]; //NSString *testMessage = [[NSString alloc] initWithFormat:@"%@", testing]; UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Test" message:testMessage delegate:nil cancelButtonTitle:@"Cool" otherButtonTitles:nil]; [alert show]; [alert release]; } </code></pre> <p>Whenever I load the code, the program crashes. Ideally, I would like to store the Int's directly in the Property List, instead of NSStrings, and then retrieve the Int's from the Property list. I tried fooling around with NSNumber but could not for the life of me get it to work.</p> <p>So that's my problem. I can't read the values from the Property List. I'd like your help to get this issue fixed, thanks!</p>

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