iOS 字符串和图片互转
for (UIImage *myImg in _imgArray)
{
NSData *imageData = UIImageJPEGRepresentation(myImg,0.5);
NSString *_encodedImageStr = [imageData base64Encoding];
[parameters setObject:_encodedImageStr forKey:[NSString stringWithFormat:@"img[%i]",imgCount]];
imgCount ++;
}
Base64字符串转UIImage图片：
NSData *_decodedImageData = [[NSData alloc] initWithBase64Encoding:_encodedImageStr];
UIImage *_decodedImage = [UIImage imageWithData:_decodedImageData];
NSLog(@"===Decoded image size: %@", NSStringFromCGSize(_decodedImage.size));
UIImage图片转成base64字符串：
UIImage *_originImage = [UIImage imageNamed:@"full_playlist_hl.png"];
NSData *_data = UIImageJPEGRepresentation(_image, 1.0f);
NSString *_encodedImageStr = [_data base64Encoding];
NSLog(@"===Encoded image:\n%@", _encodedImageStr);
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