iphone - 如何在 UIImagePickerController - didFinishPickingMediaWithInfo 中获取发件人按钮标签/名称/ID？

Question

有人可以指导我使用sender button Tag/Name/ID以下方法吗？

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

// I Want to get the sender button reference here

}

Answer 1

您可以使用 picker.view.tag 来识别 UIImagePickerController 类型。每当您调用 UIImagePicker 时，您都可以设置其视图的标签。

我使用相同的方法来识别不同的图像选择器。

编辑

UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.allowsEditing = YES;
imagePickerController.delegate = self;
imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
imagePickerController.view.tag = 5;//set the tag here

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)img editingInfo:(NSDictionary *)editingInfo
{
     NSLog(@"%d",picker.view.tag);
}

无论您设置什么，您都将获得标签值。

Answer 2

试试这个

-(IBAction)ownMethod:(id)sender
{
    UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
    imagePickerController.allowsEditing = YES;
    imagePickerController.delegate = self;
    imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    **imagePickerController.view.tag = [sender tag];//set the tag of button to picker tag ** 
    [self presentViewController:imagePickerController animated:YES completion:nil];
}