從iPhone中的服務URL獲取圖像？

Question

我必須從剩余服務URL中檢索圖像，但是我沒有用於圖像的單獨URL（圖像的路徑）。我將其保存在XML文件中。我對XML進行了解析並將其存儲在數組中。我不明白如何從中檢索圖像。我的數組如下所示：

   (
    {
    Image = "

    9j/4AAQSkZJRgABAQAAAQABAAD//gA7Q1JFQVRPUjogZ2QtanBlZyB2MS4wICh1c2luZyBJSkcgSlBFRyB2NjIpLCBxdWFsaXR5ID0gODAK/9sAQwAGBAUGBQQGBgUGBwcGCAoQCgoJCQoUDg8MEB
    cUGBgXFBYWGh0lHxobIxwWFiAsICMmJykqKRkfLTAtKDAlKCko/9sAQwEHBwcKCAoTCgoTKBoWGigoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgo/8AAEQgEKwZAAwEiAAIRAQMR
    Af/EAB8AAAEFAQEBAQEBAAAAAAAAAAABAgMEBQYHCAkKC//EALUQAAIBAwMCBAMFBQQEAAABfQECAwAEEQUSITFBBhNRYQcicRQygZGhCCNCscEVUtHwJDNicoIJChYXGBkaJSYnKCkqNDU2Nzg5OkNERUZHSElKU1RV
    VldYWVpjZGVmZ2hpanN0dXZ3eHl6g4SFhoeIiYqSk5SVlpeYmZqio6Slpqeoqaqys7S1tre4ubrCw8TFxsfIycrS09TV1tfY2drh4uPk5ebn6Onq8fLz9PX29/j5+v/EAB8BAAMBAQEBAQEBAQEAAAAAAAABAgMEBQYHCAkKC//EALURAAIBAgQEAwQHBQQEAAECdwABAgMRBAUhMQYSQVEHYXETIjKBCBRCkaGxwQkjM1LwFWJy0QoWJDThJfEXGBkaJicoKSo1Njc4OTpDREVGR0hJSlNUVVZXWFlaY2RlZmdoaWpzdHV2d3h5eoKDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uLj5OXm5+jp6vLz9PX29/j5+v/aAAwDAQACEQMRAD8A9bDUu6qwenB6y
NCyGpQ1Vg9OD0XAsbqA9QlqAeaALOaXNQbqUPQInBpQagDU4NQBMDS5qHdShqAJ80uah3UoagCbNLmod1LupgS5pc1Fupd1AEtLUW6l3UASUtR7qN1MCXNFR7qXdQBJRTN1LmgB9LUe6l3UAPopu6jdQA8UU3dRuoEOxS0zNLmgB1LTM0bqAH0U3dRuoAdRTd1LmgB2KMU3NGaAHYoxTc0u6gBcUYpM0ZoAWikzRmgBcUUmaM0ALRSZpc0AGKKM0ZoAKKM0ZoAKKM0ZoAKKM0ZoAKKM0ZFACUUtBNABSUUUAFFFGaAA0lLRQMSkpaKQCUlLRSATFJS0UAJRS0lABSUtFACUlLRQA2jFLRQA0
ikxTqSgY002n02kMAKkUUwVIopoTJFFPApoFSAVRICnCgUtMAopRRQAUUUUAFJS0UAJRS0lIAooooAKSlpKAFpKKKACilpKACiii
gAooooASiiigAooooASilpKACkpaKAEpKU0UAJRRRQAlIaWikMSkpaKQDaKWkoASilNJQAlJSmigBtJTqSkMaaSnUhoGNNJTjSUgEFPWminCmA4U4UgpwpoQopRSCnUCFFOFNpwpgxRS0UuKYhhqNhUpqNhQBXcVVlq3IKqy1LGVyOaeopAMmrEceaEhNkZ4FR5JNW3i4pscGWq7E3GRoTU6Rmp44farkdvkdKdgK0MXNXYoulSRwY7VajjwKkYxI6mRBT
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
         //big array </Image>
        }
        )

我不明白這是來自服務的哪種格式（字節數組或base64？）？ 如何在tableViewCell中從中檢索圖像？

Answer 1

如果這是base64字符串，則可以使用此字符串將base64字符串解碼為NSData，並且可以從NSData訪問UIImage。

+ (NSData *)decodeBase64WithString:(NSString *)strBase64;

Answer 2

此格式為base64，然后您應將此字符串解碼為數據並獲取圖像。 使用nsdata + base64類並將這些類導入項目中。

使用+ (NSData *)decodeBase64WithString:(NSString *)strBase64; 您代碼中的方法。 這樣叫

 NSData *imageData = [NSData decodeBase64WithString:strBase64];

編輯：

 NSString *yourBase64String = [yourDictionary valueForKey:@"Image"];
 NSData *imageData = [NSData decodeBase64WithString:yourBase64String];
 UIImage * image = [UIImage imageWithData:imageData];

Answer 3

可能是因為對NSData + Base64文件進行了修改，但是現在的方法是dataFromBase64String而不是encodeBase64WithString