關於默認相機

Question

是否可以使用目標c從我的應用程序中打開默認iPhone Camara？ 此外，從本機應用程序打開時，是否有可能獲取從默認相機中選擇的圖像或視頻？

Answer 1

您無法從您的應用程序打開默認相機應用程序。要將照相機放入應用程序中，您需要使用UIImagePickerController。它會完成你想要做的大部分工作。

這是整合它的代碼。

UIImagePickerController * imagePicker = [[UIImagePickerController alloc] init]; 
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera; 
imagePicker.delegate = self; 
[self presentModalViewController:imagePicker animated:YES]; 


- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { 
    [self dismissModalViewControllerAnimated:YES]; 
} 

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { 
    UIImage * image = [info objectForKey:UIImagePickerControllerEditedImage]; 

    // You have the image. You can use this to present the image in the next view like you require in `#3`. 

    [self dismissModalViewControllerAnimated:YES]; 
} 

用於捕獲視頻：

 UIImagePickerController *picker = [[UIImagePickerController alloc] init]; 
     picker.delegate = self; 
     picker.allowsEditing = YES; 
     picker.sourceType = UIImagePickerControllerSourceTypeCamera; 
     picker.mediaTypes = [[NSArray alloc] initWithObjects: (NSString *) kUTTypeMovie, nil]; 

     [self presentViewController:picker animated:YES completion:NULL]; 
    } 

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { 
    self.videoURL = info[UIImagePickerControllerMediaURL]; 
    [picker dismissViewControllerAnimated:YES completion:NULL]; 

    self.videoController = [[MPMoviePlayerController alloc] init]; 

    [self.videoController setContentURL:self.videoURL]; 
    [self.videoController.view setFrame:CGRectMake (0, 0, 320, 460)]; 
    [self.view addSubview:self.videoController.view]; 

    [self.videoController play]; 

} 

讀this apple documentation。有6種標準方案：郵件，電話，文本，地圖，YouTube，iTunes。你不能直接使用它們。