ios - 为UIImagePickerController设置等效的标签

Question

我有一个名为imagePicker的UIImagePickerController

UIImagePickerController * imagePicker;

我正在使用方法

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

而且我需要知道正在使用哪个imagePicker，例如，您可以为其他标签(例如UIAlertView等)设置标签，它们是否等效于UIImagePickerController？或者，我将如何得知正在调用哪个。

Answer 1

您可以使用:

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
{
   if(picker == _imagePicker)
       //do your task
}

或将标签设置为:

imagePicker.view.tag = 7;

然后检查像:

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
{
   if(picker.view.tag == 7)
       //do your task
}