Ios 保存到后如何循环nsobject

我正在使用

NSMutableArray

以列表形式存储来自web服务的项。如何从数组中读取数据以显示随机引用

当我试图避免两次访问Web服务时，还是我把它复杂化了

NSInteger randomInt = arc4random_uniform(3);
NSString *baseUrl = @"http://movie-quotes.herokuapp.com/api/v1/quotes";
NSString *webServiceUrl= [NSString stringWithFormat:@"%@/%ld", baseUrl,(long)randomInt];
randomQuotes = nil;

dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_async(queue, ^{
    // Load the JSON string from our web serivce (in a background thread)
    NSDictionary * dictionary = [JSONHelper loadJSONDataFromURL:webServiceUrl];

    dispatch_async(dispatch_get_main_queue(), ^{

        randomQuotes = [NSMutableArray array];

        // Iterate through the array of quotes records in the dictionary
        for (NSDictionary * oneQuote in dictionary)
        {
            Quotes* newQuotes =[[Quotes alloc] init];

            // Add our new Customer record to our NSMutableArray
            newQuotes.Quote = [oneQuote objectForKey:@"content"];
            newQuotes.FilmName = [oneQuote objectForKey:@"film"];
            [randomQuotes addObject:newQuotes];
        }
    });
});

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您可以从这样的数组中获取随机对象

NSUInteger randomIndex = arc4random_uniform(theArray.count);
[theArray objectAtIndex: randomIndex];

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只要保留引号数组，您就不需要再次点击web服务。

您是要让web服务返回随机引号，还是要从web服务返回的选择中显示随机引号？