Question

我从0.99.4更新到cocos2d到0.99.5。虽然它是在旧版本上我有高分列表工作，我能够将NSDictionary添加到NSMutableArray没有问题。

现在我已更新它，不会将NSDictionary变量scoreDetails添加到我的NSMutableArray scoreList。这是我的代码：

StatsManager.h

@interface StatsManager : NSObject {
NSMutableArray *scoreList;
NSUserDefaults *saveHighScore;
NSMutableArray *printableScoreList;

//NSMutableArray *scoreListTestOne;
float highScoreHelloWorld;
}

StatsManager.m

-(void)setHighScore:(float)highScore nameStrings:(NSString*)nameString {

NSNumber *newHighScore = [NSNumber numberWithFloat:highScore];
NSLog(@"%@ highScore", newHighScore);

NSDictionary *scoreDetails = [NSDictionary dictionaryWithObjectsAndKeys:nameString, @"name", newHighScore, @"score", nil];

NSLog(@"%@", scoreDetails);
//NSMutableArray *testTwo = [[NSMutableArray alloc] init];
[scoreList addObject:scoreDetails];
NSLog(@"scoreList %@", scoreList);
//[scoreListTestOne addObject:scoreDetails];
//NSLog(@"scoreListTestOne %@", scoreListTestOne);
//sort
NSSortDescriptor *sort = [[NSSortDescriptor alloc] initWithKey:@"score" ascending:NO];
[scoreList sortUsingDescriptors:[NSArray arrayWithObject:sort]];

printableScoreList = scoreList;
NSLog(@"printableScoreList %@", printableScoreList);
//NSLog(@"scoreListTestOne %@", scoreListTestOne);
}

有问题的行是

    [scoreList addObject:scoreDetails];

我在setHighScore函数中创建了一个本地NSMutableArray变量，并尝试将scoreDetails添加到该变量并且它有效。但为什么它不能像我上面编码一样工作呢？

我在这里分配init my scoreList：

@implementation StatsManager
static StatsManager *_sharedStatsManager = nil;
-(id)init {
    scoreList = [[NSMutableArray alloc] init];
    //playerNames = [[NSMutableArray alloc] init];
    //playerScores = [[NSMutableArray alloc] init];
    printableScoreList = [[NSMutableArray alloc] init];

//listOfScoresTest = [[NSMutableDictionary alloc] initWithCapacity:5];
/*if ([scoreList count] == 0) {
    for (int i = 0; i < 5; i++) {
        [scoreList addObject:[NSNumber numberWithFloat:0.00]];
    }
}*/

return [super init];
}

我还应该提一下，我创建了一个新的projectB并将我的文件/图像从旧的projectA转移到了新的projectA，因为旧版本因为一些重复的错误而不再编译。但我再次“清理了所有目标”并且它有效，但这也与我的新项目B有相同的问题

Answer 1

你是否在init中初始化scoreList ivar？

- (id)init
{
    /* snip */
    scoreList = [[NSMutableArray alloc] init];
    return self;
}

- (void)dealloc
{
    [scoreList release];
    [super dealloc];
}

Answer 2

Ok Georg我重新考虑了你以后有关覆盖它的建议。

它与我的NSUserdefaults有关。我对它们进行了评论，现在它将对象添加到我的NSMutableArray中。我对NSUserdefaults很新，所以我不确切知道如何使用它atm lol

    -(void)save
{

    //make another array to save the scores.
    saveHighScore = [NSUserDefaults standardUserDefaults]; 
    //[saveHighScore setObject:scoreListNew forKey:@"DodgerAppBeta"];
    [saveHighScore synchronize];
    //[[NSUserDefaults standardUserDefaults] setObject:scoreListTestOne forKey:@"DodgerBeta"];
    //[[NSUserDefaults standardUserDefaults] synchronize];  
}

-(void)load
{

    saveHighScore = [NSUserDefaults standardUserDefaults];
    //scoreListNew  = [[saveHighScore objectForKey:@"DodgerAppBeta"] mutableCopy];

    printableScoreList  = [[saveHighScore objectForKey:@"DodgerAppBeta"] mutableCopy];
    //NSLog(@"scoreListTestOne %@", scoreListTestOne);
    //[printableScoreList addObject:[[NSUserDefaults standardUserDefaults] objectForKey:@"Dodger"]];
    NSLog(@"PSL %@", printableScoreList);
}

NSMutableArray不会添加NSDictionary

2 个答案: