NSMutableArrayにオブジェクトを追加できません

Question

NSUserDefaultで「お気に入りに追加」しています。 NSMutableArrayに配列を追加するときにこの問題が発生しています。誰かが私が間違っていたことを知っていますか？どうもありがとうございました。昨日このような何かをやっ

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults]; 
NSMutableArray *favoriteRecipes = [[NSMutableArray alloc] init]; 


if ([prefs objectForKey:@"myFavor"] == nil) { 
    //create the array 
    NSMutableArray *array = [[NSMutableArray alloc] init]; 
    [prefs setObject:array forKey:@"myFavor"]; 
    [array release]; 
} 
NSMutableArray *tempArray = [[prefs objectForKey:@"myFavor"] mutableCopy]; 
favoriteRecipes = tempArray; 
[tempArray release]; 

NSArray *charArray = [[NSArray alloc] initWithObjects: @"test1", @"test2" , nil]; 

//add the recipe 
[favoriteRecipes addObject:[charArray objectAtIndex:0]]; 

//save the array to NSUserDefaults 
[prefs setObject:favoriteRecipes forKey:@"myFavor"]; 
[prefs synchronize]; 

Answer 1

favoriteRecipes = tempArray; 

instated of above line use be below line it will work fine 

[favoriteRecipes addObjectsFromArray:tempArray]; 

Answer 2

。以下の私のコードを見てください。あなたが私のように同じことをしたいのかどうかはわかりません。

NSDictionary *tempDictionary = [NSDictionary dictionaryWithObjectsAndKeys:productID,@"ID",productTitle,@"title",productPrice,@"price",imageUrl,@"image",shipping,@"shipping_day", nil]; 

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; 
NSMutableArray *cartList = [[defaults objectForKey:@"CART_ITEMS"] mutableCopy]; 

if(!cartList) 
    cartList = [[NSMutableArray alloc] init]; 

if([cartList indexOfObject:tempDictionary] == NSNotFound) 
{ 
    NSLog(@"add favorite"); 
    [cartList addObject:tempDictionary]; 
    [defaults setObject:cartList forKey:@"CART_ITEMS"]; 
    [defaults synchronize]; 
    [sender setTitle:@"Remove" forState:UIControlStateNormal]; 
} 
else 
{ 
    NSLog(@"remove favorite"); 
    [cartList removeObject:tempDictionary]; 
    [defaults setObject:cartList forKey:@"CART_ITEMS"]; 
    [defaults synchronize]; 
    [sender setTitle:@"Add to cart" forState:UIControlStateNormal]; 
} 

これは、私は毎回私は混乱していますNSUserDefault

-(void)getCartList 
{ 
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; 
NSMutableArray *cartList = [[defaults objectForKey:@"CART_ITEMS"] mutableCopy]; 
productListArr = [NSMutableArray arrayWithArray:cartList]; 
NSLog(@"cart list data == %@", cartList); 
}