將圖片設置爲UIImages作爲實例變量

Question

我在支持文件中有一個名爲「cards」的文件夾。我正在嘗試將pic設置爲對象的UIImage實例變量。當我嘗試NSLog的UIImage我得到空。

我不認爲我正確訪問圖片的路徑，但不知道？

#import "Deck.h" 
#import "Card.h" 

@implementation Deck 

@synthesize cards; 

- (id) init 
{ 
    if(self = [super init]) 
    { 
     cards = [[NSMutableArray alloc] init]; 

     NSInteger aCount, picNum = 0; 

     for(int suit = 0; suit < 4; suit++) 
     { 
      for(int face = 1; face < 14; face++, picNum++) 
      { 

       //NSString *path = [[NSBundle mainBundle] bundlePath]; 
       //NSString *imagePath = [path stringByAppendingPathComponent: [NSString stringWithFormat:@"/cards/card_%d.png",picNum]]; 

       NSString *fileName = [NSString stringWithFormat:@"card_%d", picNum]; 
       NSString *path = [[NSBundle mainBundle] pathForResource:fileName ofType:@"png"inDirectory:@"/cards"]; 

       NSLog(@"%@", path); 
       UIImage *output = [UIImage imageNamed:path]; 

       //NSLog(@"%@", output); 

       Card *card = [[Card alloc] initWithFaceValue:(NSInteger)face 
               countValue:(NSInteger)aCount 
               suit:(Suit)suit 
               cardImage:(UIImage *)output]; 

       [cards addObject:card]; 
      } 

     } 
    } 
    return self; 
} 

} 

@end

Answer 1

的概念更好的方法是使用那些專門爲子目錄的工作設計的NSBundle方法：

NSString *fileName = [NSString stringWithFormat:@"card_%d", picNum]; 
NSString *path = [[NSBundle mainBundle] pathForResource:fileName 
               ofType:@"png" 
              inDirectory:@"cards"];