的NSDictionary到NSMutableArray的

Question

這裏是我的API響應 -

{"kitchen":"3","bath":"5","lanundry":"0","dining":"0","bedroom":"0"} 

我在NSDictionary裝這個，我可以使用鍵像檢索值 -

NSDictionary *pdata = [NSJSONSerialization JSONObjectWithData: data options:NSJSONReadingMutableContainers error:nil];  
[pdata objectForKey:@"dining"] 

我要添加dictionary對象爲NSMutableArray但它會覆蓋最後一個數組的所有數組值，即使它添加了五條記錄。

itemsA=[[NSMutableArray alloc] init]; 


imgCount *img=[[imgCount alloc] init]; 

if([pdata objectForKey:@"kitchen"]) 
    { 

     [img setCount:[pdata objectForKey:@"kitchen"]]; 
     [img setDesc:@"Kitchen"]; 

     [itemsA addObject:img]; 
    } 
if([pdata objectForKey:@"bath"]) 
    { 
     [img setCount:[pdata objectForKey:@"bath"]]; 
     [img setDesc:@"Bathroom"]; 
     [itemsA addObject:img]; 
    } 
if([pdata objectForKey:@"lanundry"]) 
    { 
     [img setCount:[pdata objectForKey:@"lanundry"]]; 
     [img setDesc:@"Laundry"]; 
     [itemsA addObject:img]; 
     } 
if([pdata objectForKey:@"dining"]) 
     { 
     [img setCount:[pdata objectForKey:@"kitchen"]]; 
     [img setDesc:@"Kitchen"]; 
     [itemsA addObject:img]; 
     } 
    if([pdata objectForKey:@"bedroom"]) 
     { 
     [img setCount:[pdata objectForKey:@"bedroom"]]; 
     [img setDesc:@"Bedroom"]; 
     [itemsA addObject:img]; 
     } 

我的表視圖顯示5列的最後一個值 -

Bedroom (0) 

但我想造成這樣

{"desc":"bathroom","count":"0"}, {"desc":"dining","count":"3"} 

Answer 1

與您的代碼的問題是要創建只有一個img對象並重新使用它。由於所有對象均通過Objective-C中的引用進行訪問，因此您需要在全部條件下創建單獨的img對象。試試這個

itemsA=[[NSMutableArray alloc] init]; 

if([pdata objectForKey:@"kitchen"]) 
    { 
     imgCount *img=[[imgCount alloc] init]; 
     [img setCount:[pdata objectForKey:@"kitchen"]]; 
     [img setDesc:@"Kitchen"]; 

     [itemsA addObject:img]; 
    } 
if([pdata objectForKey:@"bath"]) 
    { 
     imgCount *img=[[imgCount alloc] init]; 
     [img setCount:[pdata objectForKey:@"bath"]]; 
     [img setDesc:@"Bathroom"]; 
     [itemsA addObject:img]; 
    } 
if([pdata objectForKey:@"lanundry"]) 
    { 
     imgCount *img=[[imgCount alloc] init]; 
     [img setCount:[pdata objectForKey:@"lanundry"]]; 
     [img setDesc:@"Laundry"]; 
     [itemsA addObject:img]; 
     } 
if([pdata objectForKey:@"dining"]) 
     { 
     imgCount *img=[[imgCount alloc] init]; 
     [img setCount:[pdata objectForKey:@"kitchen"]]; 
     [img setDesc:@"Kitchen"]; 
     [itemsA addObject:img]; 
     } 
    if([pdata objectForKey:@"bedroom"]) 
     { 
     imgCount *img=[[imgCount alloc] init]; 
     [img setCount:[pdata objectForKey:@"bedroom"]]; 
     [img setDesc:@"Bedroom"]; 
     [itemsA addObject:img]; 
     } 

Answer 2

試試這個，讓你的所有字典鍵進入NSMutable陣列。

NSArray*keys=[dict allKeys]; 
NSMutableArray *mutableArray = [keys mutableCopy]; 

Answer 3

因此，您可以嘗試這樣。首先獲取字典的所有關鍵字，然後使用該關鍵字數組創建字典數組。

NSArray*keys=[dict allKeys]; 
NSMutableArray *array = [[NSMutableArray alloc] init]; 
for (NSString *key in keys) { 
    NSDictionary *dic = @{ @"desc":key, @"count": [dict objectForKey:key] }; 
    [array addObject:dic]; 
} 
NSLog(@"Array - %@",array); 

編輯：如果你想自定義類對象，你可以嘗試這樣的。

for (NSString *key in keys) { 
    imgCount *imgObject=[[imgCount alloc] init]; 
    [imgObject setCount:[pdata objectForKey:key]]; 
    [imgObject setDesc:[key capitalizedString]];   
    [array addObject:imgObject]; 
}