Ios 从UIImagePickerController获取图像

我想获取图像frm

imagepickercontroller

。但是我的代码没有任何效果 这是密码

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    [picker dismissModalViewControllerAnimated:YES];
    imageview.image = [UIImage imageNamed:[info objectForKey:@"UIImagePickerControllerOriginalImage"]];

试一试

---

您可以尝试使用此代码访问从选择器返回的图像

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

    [picker dismissModalViewControllerAnimated:YES];

    UIImage* originalImage = nil;
    originalImage = [info objectForKey:UIImagePickerControllerEditedImage];
    if(originalImage==nil)
    {
        originalImage = [info objectForKey:UIImagePickerControllerOriginalImage];
    }
    if(originalImage==nil)
    {
        originalImage = [info objectForKey:UIImagePickerControllerCropRect];
    }
  //At this point you have the selected image in originalImage
    [self saveImageToDocumentDirectory:originalImage];
}

试试这个

imageview.image = [info objectForKey:UIImagePickerControllerOriginalImage];

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已为Swift 5更新，以下内容将安全地打开

UIImage

// This uses the full key value
guard let image = info[UIImagePickerController.InfoKey.originalImage] as? UIImage else { return }

// This uses only the info key value for shorter code
guard let image = info[.originalImage] as? UIImage else { return }

---

首先，类似问题的链接应该被评论而不是回答。其次,他的代码不起作用的原因显然是"imageNamed",也可能是"UIImagePickerControllerOriginalImage",谢谢Phlibbo指出链接的内容,，然而，这是为了接受提示，而不是为了重定向到我提到的问题链接到提示似乎是dead@MichałW.谢谢你指出这一点。我已经更新了我的答案。除死链接外，当前代码是否有任何特定内容？在现代Swift中重命名为

info[UIImagePickerController.InfoKey.originalImage]

// This uses the full key value
guard let image = info[UIImagePickerController.InfoKey.originalImage] as? UIImage else { return }

// This uses only the info key value for shorter code
guard let image = info[.originalImage] as? UIImage else { return }