iphone - objective-c -覆盖用户默认值

我似乎无法在ios用户默认设置中重新编辑此对象。这是我的代码...

NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setObject:nil forKey:@"savedScoreCards2"];

在执行此操作之前，我将密钥saveScoreCards设置为一个巨大的3-d字典，现在当我尝试对其进行重写或什至将密钥设置为nil时，我之前设置的那个巨大的3-d字典仍然存在。我似乎无法过度写/替换它（零），或者另一个巨大的3-d字典。有任何想法吗？

更新：

  + (void)saveCurrentScoreCard
  {
    //save score card
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    NSMutableDictionary *savedScoreCards = [[NSMutableDictionary alloc] init];
    [userDefaults setObject:nil forKey:@"savedScoreCards2"];//reset at beginning

    NSMutableArray *golferOneScoresu = [userDefaults arrayForKey:@"golferOneScoresArray"];
    NSMutableArray *golferTwoScoresu = [userDefaults arrayForKey:@"golferTwoScoresArray"];
    NSMutableDictionary *golferIconsu = [userDefaults objectForKey:@"golferIconsFirstScene"];
    NSMutableArray *golferThreeScoresu = [userDefaults arrayForKey:@"golferThreeScoresArray"];
    NSMutableArray *golferFourScoresu = [userDefaults arrayForKey:@"golferFourScoresArray"];
    NSMutableDictionary *golferIcons2u = [userDefaults objectForKey:@"golferIcons"];
    NSMutableArray *golferNamesu = [userDefaults objectForKey:@"golferNames"];

    NSMutableArray *golferNames = [[NSMutableArray alloc] initWithArray:golferNamesu copyItems:YES];
    NSMutableDictionary *golferIconsSceneOne = [[NSMutableDictionary alloc]initWithDictionary:golferIconsu];
    NSMutableDictionary *golferIcons = [[NSMutableDictionary alloc]initWithDictionary:golferIcons2u];
    NSMutableArray *golferFourScores = [[NSMutableArray alloc] initWithArray:golferFourScoresu copyItems:YES];
    NSMutableArray *golferThreeScores = [[NSMutableArray alloc] initWithArray:golferThreeScoresu copyItems:YES];
    NSMutableArray *golferOneScores = [[NSMutableArray alloc] initWithArray:golferOneScoresu copyItems:YES];
    NSMutableArray *golferTwoScores = [[NSMutableArray alloc] initWithArray:golferTwoScoresu copyItems:YES];

    NSMutableDictionary *currentScoreCard = [[NSMutableDictionary alloc] init];

    [currentScoreCard setObject:golferNames forKey:@"golferNames"];
    [currentScoreCard setObject:golferIconsSceneOne forKey:@"golferIconsFirstScene"];
    [currentScoreCard setObject:golferIcons forKey:@"golferIcons"];
    [currentScoreCard setObject:golferOneScores forKey:@"golferOneScoresArray"];
    [currentScoreCard setObject:golferTwoScores forKey:@"golferTwoScoresArray"];
    [currentScoreCard setObject:golferThreeScores forKey:@"golferThreeScoresArray"];
    [currentScoreCard setObject:golferFourScores forKey:@"golferFourScoresArray"];

    [savedScoreCards setObject:currentScoreCard forKey:@"1"];

    NSLog([golferIconsSceneOne objectForKey:@"30101"]);

    [userDefaults setObject:savedScoreCards forKey:@"savedScoreCards2"];
    [userDefaults synchronize];
    NSLog(@"SAVED SCORE CARD");
}

最佳答案

如果您只是想删除存储的值，请使用[userDefaults removeObjectForKey:@"savedScoreCards2"]。
还要调用[userDefaults synchronize];立即“刷新”您的更改。我认为[userDefaults synchronize]可能是您所缺少的。

关于iphone - objective-c -覆盖用户默认值，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/10661447/