使用Cocoa-Touch從文件路徑創建樹形結構對象

Question

我有一個文檔及其路徑的列表。

Unsigned/Corporate Tax Return/Testing.docx 
Signed/Report/fieldsInfo.pdf 
Unsigned/Corporate Tax Return/testSecure.pdf 
Unsigned/Corporate Tax Return/2012/fileCatcher.pdf 
Unsigned/Corporate Tax Return/2012/taxReturn.pdf 

由此我想一個樹狀結構的對象數組，其中所有這些對象都放在 我有兩個對象類型：文檔和文件

我怎麼會去的目標C這樣做呢？

我有這麼遠：

- (void) createFolderStructure:(Document *) doc{ 
    Folder * root = [[Folder alloc]init]; 

    NSArray * folders = [doc.documentFilePath componentsSeparatedByString:@"/"]; 

    for(NSString * folderName in folders){ 
     if([root.folderSubFolders count] == 0){ 
      //root is empty , create folder 
      Folder * newFolder = [[Folder alloc]init]; 
      newFolder.folderName = folderName; 
      [root.folderSubFolders addObject:newFolder]; 
     } else { 
      //root has subfolders 
      for(Folder * folder in root.folderSubFolders){ 
       if ([folder.folderName isEqualToString:folderName]) { 
        //folder exists in subfolders 

       } else { 
        //folder doesn't exist ,create folder 
        Folder * newFolder = [[Folder alloc]init]; 
        newFolder.folderName = folderName; 
        [root.folderSubFolders addObject:newFolder]; 

       } 
      } 
     } 
    } 
} 

Answer 1

你可以這樣做：

NSString *str = @"Unsigned/Corporate Tax Return/2012/taxReturn.pdf"; 
NSArray *arr = [str componentsSeparatedByString:@"/"]; 

，那麼你有一個數組包含NSString的

0 - 無符號，1 - 企業納稅申報...

當您這樣做：

id fileObj = [arr lastObject]; 

你會得到文件對象，數組對象的其餘部分應文檔對象。