iOS 图片转成base64编码
//UIImage图片转成Base64字符串:
UIImage *originImage = [UIImage imageNamed:@"Cover.png"];
NSData *data = UIImageJPEGRepresentation(originImage, 1.0f);
NSString *encodedImageStr = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
NSLog(@"encodedImageStr==%@",encodedImageStr);
//Base64字符串转UIImage图片:
NSData *decodedImageData = [[NSData alloc]
initWithBase64EncodedString:encodedImageStr options:NSDataBase64DecodingIgnoreUnknownCharacters];
UIImage *decodedImage = [UIImage imageWithData:decodedImageData];
UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(60, 100, 200, 400)];
[imgView setImage:decodedImage];
[self.view addSubview:imgView];
NSLog(@"decodedImage==%@",decodedImageData);