Question

我正在尝试访问UIImage实例变量并在UIImageView中显示它。当我尝试NSLog路径时，我得到null。我可以通过IB手动显示图片，但我想通过代码

严格执行此操作

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

                NSLog(@"%@", path);                          //outputs correctly

                UIImage *output = [UIImage imageNamed:path];

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

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

                [cards addObject:card];
            }

        }
    }
    return self;
}

我添加了一个链接来显示找到图片的位置

Link

Answer 1

您不必包含图像的所有路径，如果您只是输入名称，Xcode会自动查找它。

访问UIImage实例变量并在UIImageView中显示它

1 个答案: