UIDocumentPickerViewController *documentPicker = [[UIDocumentPickerViewController alloc] initWithDocumentTypes:types inMode:UIDocumentPickerModeImport];
documentPicker.delegate = self;
//documentPicker.editButtonItem.enabled = true;
//documentPicker.modalPresentationStyle =UIModalPresentationFormSheet;
[self presentViewController:documentPicker animated:YES completion:nil];
任何人都可以向我建议如何启用右上角的编辑按钮并对其他驱动器进行启用/禁用,例如:(Dropbox、Google Drive、iCloud)从列表中?(这些驱动器已安装在我的设备中) .
另外,我如何才能从驱动器中仅访问 Excel 和 Google 表格文件?先感谢您。