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我有一个NSData与Base 64的图像解码.我想在UIImage中转换这些数据,但....

NSData * data = [[NSData alloc] initWithContentsOfFile:@"/Users/.../Library/Caches/images/david.txt"];

UIImage * i = [[UIImage alloc] initWithData:data];

NSLog(@"%@",i);


NSData *datai = UIImagePNGRepresentation(i);

UIImage * i2 = [[UIImage alloc] initWithData:datai];


imagen = [[UIImageView alloc] initWithImage:i2];

[imagen setFrame:CGRectMake(0, 0, 320, 480)];

imagen - >变量

我知道数据中的内容是正确的,但在我的控制台中:

[Session started at 2011-08-24 20:44:25 +0200.]
2011-08-24 20:44:30.579 P[50194:207] (null)

我用这个Objective C代码解码了:

- (NSData *)base64DataFromString: (NSString *)string
{
    unsigned long ixtext, lentext;
    unsigned char ch, inbuf[3], outbuf[4];
    short i, ixinbuf;
    Boolean flignore, flendtext = false;
    const unsigned char …