imagePickerController返回0字节的图像

Question

我有一个iPad应用程序，我试图让用户用相机拍照，然后将其保存到我的服务器。但出于某种原因，UIImage从

返回

- (void)imagePickerController:(UIImagePickerController *)thePicker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo

返回0字节的图像......

奇怪的是我可以在UIImageView中很好地显示这个图像，但是当我尝试将它保存到我的服务器时，它会发送0个字节，因此不会保存任何内容。

我很难过，有什么想法吗？

非常感谢您的任何建议，

Answer 1

试试这个

    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

        UIImage *chosenImage = info[UIImagePickerControllerOriginalImage];
        UIImage *newImage = [self scaleAndRoateImage:chosenImage];

        [picker dismissViewControllerAnimated:YES completion:nil];
    }];
}

希望这能帮到你

Answer 2

在访问信息词典之前显然解雇了imageController解决了这个问题。

所以试试

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

        [picker dismissViewControllerAnimated:YES completion:nil];
        UIImage *chosenImage = info[UIImagePickerControllerOriginalImage];
        UIImage *newImage = [self scaleAndRoateImage:chosenImage];

    }];
}

更多信息：

http://iphonedevsdk.com/forum/iphone-sdk-development/52639-uiimagepickercontroller-issue-did-i-miss-something.html#post266218

Answer 3

签入此委托方法：

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
   UIImage *chosenImage = info[UIImagePickerControllerOriginalImage];
}