xcodeのcocoaプロジェクトで開いているファイルダイアログを作成するにはどうすればよいですか？

Question

私は、Windows用のGetOpenFileName関数に相当するものを探しています。

Answer 1

ファイルを開くUIのための

標準のCocoaクラスはNSOpenPanel

例コードです：

//this gives you a copy of an open file dialogue 
NSOpenPanel* openPanel = [NSOpenPanel openPanel]; 

//set the title of the dialogue window 
openPanel.title = @"Choose a .PED texture file"; 

//shoud the user be able to resize the window? 
openPanel.showsResizeIndicator = YES; 

//should the user see hidden files (for user apps - usually no) 
openPanel.showsHiddenFiles = NO; 

//can the user select a directory? 
openPanel.canChooseDirectories = NO; 

//can the user create directories while using the dialogue? 
openPanel.canCreateDirectories = YES; 

//should the user be able to select multiple files? 
openPanel.allowsMultipleSelection = NO; 

//an array of file extensions to filter the file list 
openPanel.allowedFileTypes = @[@"ped"]; 

//this launches the dialogue 
[openPanel beginSheetModalForWindow:appDelegate.controlsWindow 
       completionHandler:^(NSInteger result) { 

        //if the result is NSOKButton 
        //the user selected a file 
        if (result==NSOKButton) { 

         //get the selected file URLs 
         NSURL *selection = openPanel.URLs[0]; 

         //finally store the selected file path as a string 
         NSString* path = [[selection path] stringByResolvingSymlinksInPath]; 

         //here add yuor own code to open the file 

        } 

       }];