我的应用程序在UIDocumentPickerViewController上崩溃了 [英] My app is getting crashed on UIDocumentPickerViewController

问题描述

我正在iOS App上进行文件共享，我是 UIDocumentPickerViewController 的新手。我不知道为什么我的应用程序崩溃。

  UIDocumentPickerViewController * documentPicker = [[UIDocumentPickerViewController alloc] initWithDocumentTypes：@ [@public .image] inMode：UIDocumentPickerModeImport]; 
 documentPicker.delegate = self; 
 documentPicker.modalPresentationStyle = UIModalPresentationFormSheet; 
 [self presentViewController：documentPicker animated：YES completion：nil]; 
  

应用程序在突出显示的行上崩溃。

<有没有人以前做过这个？我想像下面的附件那样做

Apple文档：

在您的应用程序可以使用文档选择器之前，您必须在Xcode中打开
iCloud Documents功能

让我知道这是否可以解决您的问题！

I am working on file sharing on my iOS App, I am new to UIDocumentPickerViewController. I do not know why my app is crashing.

UIDocumentPickerViewController *documentPicker = [[UIDocumentPickerViewController alloc] initWithDocumentTypes:@[@"public.image"] inMode:UIDocumentPickerModeImport];
documentPicker.delegate = self;
documentPicker.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentViewController:documentPicker animated:YES completion:nil];

App is crashing on the highlighted lines.

Has anyone done this previously? I want to do the same like the attachment below

解决方案

See Prerequisite section on Apple Documentation:

Before your app can use the document picker, you must turn on the iCloud Documents capabilities in Xcode

Let me know if this solve your problem!

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