我的问题是,图像保存的格式是什么,是dat还是jpg。这是我使用的代码:
NSString * urlImage = .....;
NSString * _folderPath = .....;
NSString * imageName = [[urlImage componentsSeparatedByString:@"/"] lastObject];
NSString * jpegPath = [NSString stringWithFormat:@"%@%@",_folderPath,imageName];
if (![[NSFileManager defaultManager] fileExistsAtPath:jpegPath])
{
NSURL *url = [NSURL URLWithString:urlImage];
//Download image
UIImage *image = [[UIImage alloc] initWithData:[NSData dataWithContentsOfURL:url]];
//Save image
NSData *data = [NSData dataWithData:UIImageJPEGRepresentation(image, 1.0f)];//1.0f = 100% quality
[data writeToFile:jpegPath atomically:YES];
}