節能字典NSCoding反對NSUserDefaults的

我有它實現NSCoding的自定義對象，它看起來像這樣（簡化當然）：節能字典NSCoding反對NSUserDefaults的

@implementation FooBarThing 

    @synthesize foo = _foo; 
    @synthesize bar = _bar; 

    - (instancetype)initWithCoder:(NSCoder *)coder 
    { 
     self = [super init]; 
     if (self) { 
      _foo = [[coder decodeObjectForKey:FOO] retain]; 
      _bar = [[coder decodeObjectForKey:BAR] retain]; 
     } 
     return self; 
    } 

    - (void)encodeWithCoder:(NSCoder *)coder 
    { 
     [coder encodeObject:self.foo forKey:FOO]; 
     [coder encodeObject:self.bar forKey:BAR]; 
    } 
@end

目前，我在我的自定義類的數組保存到NSUserDefaults的，像這樣：

-(void)saveResults:(NSArray *)results 
{ 
    NSData *data = [NSKeyedArchiver archivedDataWithRootObject:results]; 
    [[NSUserDefaults standardUserDefaults] setObject:data forKey:@"RESULTS"]; 
    [[NSUserDefaults standardUserDefaults] synchronize]; 
} 

-(NSArray*)readResults 
{ 
    NSData *results = [[NSUserDefaults standardUserDefaults] objectForKey:@"RESULTS"]; 
    NSArray *resultsArray = [NSKeyedUnarchiver unarchiveObjectWithData:results]; 
    return resultsArray; 
}

我想要做的，是結果的陣列存儲在一個字典，用繩子像這樣鍵入：

-(void)saveResults:(NSArray *)scanResults forKey:(NSString *)key 
{ 
    ??? 
} 

-(NSArray*)readResults:(NSString *) key 
{ 
    ??? 
}

讓我的語法正確無誤，我開始相信我只是在想這個，所以幫助將apprecaited！謝謝！

編輯：

因爲我已經解決了這個，這是很簡單的只是有一個瞬間失效。也許不是最好的選擇，所以打開任何改善建議！

-(void)saveResults:(NSArray *)results forKey:(NSString *)key 
{ 
    NSMutableDictionary* dict = [NSMutableDictionary dictionaryWithDictionary:[self getResultsDict]]; 
    NSData *data = [NSKeyedArchiver archivedDataWithRootObject:results]; 
    if(dict == nil){ 
     dict = [NSMutableDictionary dictionaryWithObject:data forKey:key]; 
    }else{ 
     [dict setObject:data forKey:key]; 
    } 

    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; 
    [userDefaults setObject:dict forKey:@"RESULTS_DICT"]; 
    [userDefaults synchronize]; 
} 

-(NSArray*)readFullResults:(NSString *)key 
{ 
    NSDictionary *dict = [self getResultsDict]; 
    NSArray *result = nil; 
    if(dict != nil){ 
     [dict objectForKey:key]; 
     NSData *data = [dict objectForKey:key];; 
     result = [NSKeyedUnarchiver unarchiveObjectWithData: data]; 
    } 
    return result; 
} 

-(NSArray*) getDates 
{ 
    NSDictionary *dict = [self getResultsDict]; 
    if(dict != nil) 
    { 
     return [dict allKeys]; 
    } 
    return nil; 
} 

- (NSDictionary*)getResultsDict{ 
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; 
    NSMutableDictionary *resultsDict = [userDefaults objectForKey:@"RESULTS_DICT"]; 
    return resultsDict; 

}

來源

2015-07-21 xceph

是否要將結果存儲在字典或默認系統中？你想在saveResults中做什麼：forKey：？ – Caleb

我正在尋找將結果保存在字典中，並將字典置於系統默認值中。自從我編輯了我的答案以包含我的解決方案。謝謝您的幫助。 – xceph

真的應該從問題中刪除答案，並將答案標記爲已接受的答案。 – Caleb

也許我誤解你，因爲這個問題似乎太簡單了給什麼你有已經完成......

-(void)saveResults:(NSArray *)scanResults forKey:(NSString *)key 
{ 
    self.aDictionaryProperty[key] = scanResults; 
} 

-(NSArray*)readResults:(NSString *) key 
{ 
    return self.aDictionaryProperty[key]; 
}

來源

2015-07-21 14:34:57 danh

謝謝，但問題更多的是在處理NSUserDefaults元素，以及我的cuson類。我已經解決了它並編輯了我的答案，感謝您的幫助！ – xceph

我已經解決了這個像這樣：

-(void)saveResults:(NSArray *)results forKey:(NSString *)key 
    { 
     NSMutableDictionary* dict = [NSMutableDictionary dictionaryWithDictionary:[self getResultsDict]]; 
     NSData *data = [NSKeyedArchiver archivedDataWithRootObject:results]; 
     if(dict == nil){ 
      dict = [NSMutableDictionary dictionaryWithObject:data forKey:key]; 
     }else{ 
      [dict setObject:data forKey:key]; 
     } 

     NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; 
     [userDefaults setObject:dict forKey:@"RESULTS_DICT"]; 
     [userDefaults synchronize]; 
    } 

    -(NSArray*)readFullResults:(NSString *)key 
    { 
     NSDictionary *dict = [self getResultsDict]; 
     NSArray *result = nil; 
     if(dict != nil){ 
      [dict objectForKey:key]; 
      NSData *data = [dict objectForKey:key];; 
      result = [NSKeyedUnarchiver unarchiveObjectWithData: data]; 
     } 
     return result; 
    } 

    -(NSArray*) getDates 
    { 
     NSDictionary *dict = [self getResultsDict]; 
     if(dict != nil) 
     { 
      return [dict allKeys]; 
     } 
     return nil; 
    } 

    - (NSDictionary*)getResultsDict{ 
     NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; 
     NSMutableDictionary *resultsDict = [userDefaults objectForKey:@"RESULTS_DICT"]; 
     return resultsDict; 

    }

來源

2015-07-21 15:35:50 xceph

節能字典NSCoding反對NSUserDefaults的

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