Accessing Strings Values within Plist file Arrays?

问题

I've got a Plist file in my project that has a number of different arrays; each array is a different category which then contains additional arrays for individual questions. The problem I'm having is accessing the nodes and their values within these arrays.

Code I'm using:

-(IBAction)nextleft {

    if (questionCounter > 1) {
        questionCounter -= 1;
    }

    [self nextQuestion];

}

-(IBAction)nextright {

    if (questionCounter < 20) {
        questionCounter += 1;
    }

    [self nextQuestion];

}

-(void)nextQuestion {

    NSArray *pair;

    pair = [categories objectAtIndex:questionCounter]; 

    plistQuestion = [pair objectAtIndex:0];
    plistAnswer = [pair objectAtIndex:1];

    abbreviation.text = plistQuestion;

}

My categories array is filled from my Plist file with this line;

categories = [NSArray arrayWithContentsOfFile:@"questions.plist"];

回答1:

You can create a class in which you have two instances of NSString (question & answer) which consist the value of question & answer.Create an array of category which consist of object of that class.

回答2:

Solution:

NSArray *categories = [NSArray arrayWithContentsOfFile:@"questions.plist"];

for (NSArray *pair in categories)
{
    NSString *q = [pair objectAtIndex:0];
    NSString *a = [pair objectAtIndex:1];

    // process q and a
}

来源：https://stackoverflow.com/questions/11851026/accessing-strings-values-within-plist-file-arrays