iOS image和string的相互转换

#pragma mark 图片转字符串

-(NSString *)UIImageToBase64Str:(UIImage *)image

{

    NSData *data = UIImageJPEGRepresentation(image, 1.0f);

    NSString *encodedImageStr = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];

    return encodedImageStr;

}

 

 

#pragma mark 字符串转图片

-(UIImage *)Base64StrToUIImage:(NSString *)_encodedImageStr

{

    NSData *_decodedImageData   = [[NSData alloc] initWithBase64Encoding:_encodedImageStr];

    UIImage *_decodedImage      = [UIImage imageWithData:_decodedImageData];

    return _decodedImage;

}