如何從一個文檔文件夾獲取文件到另一個文檔文件夾？

Question

在我的應用程序保存文檔Directory.then以後錄音文件會從文件目錄中的所有下列文件和顯示我的mainClass所有這些文件在那裏我的UITableView它。 當我點擊這個mainClass泰伯維的任何行它轉到下一個類，其中i播放此文件，刪除此文件，該文件發送到我的收藏記錄類在那裏我有泰伯維爲it.Now我的播放按鈕的操作方法和刪除按鈕行動方法工作正常，但我不知道如何發送這個文件到我的Favurite類Tableview.now我在這裏顯示我的刪除按鈕通過我們可以得到的基本想法的代碼。

-(IBAction)deleteFile 
{ 
    NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *docsDir = [dirPaths objectAtIndex:0]; 
    NSString *documentPath = [docsDir stringByAppendingPathComponent:@"MyRecordings"]; 
    NSString *soundFilePath = [documentPath stringByAppendingPathComponent:fileToPlay]; 
    recordedTmpFile = [NSURL fileURLWithPath:soundFilePath]; 
    [[NSFileManager defaultManager] removeItemAtURL:recordedTmpFile error:nil]; 

} 

正如我的刪除按鈕的代碼展示我們如何刪除這是我從MainTableview。現在選擇當前的錄音文件，如果用戶希望將當前的錄音文件發送到我的收藏類泰伯維而不是刪除它，然後我是否使用這裏的另一個文件夾如果答案是肯定的？那麼我們怎樣才能在這個新的Document文件夾中保存當前文件（recordedTmpFile）。

-(IBAction)AddToFavourite 
{ 
NSArray *dirPaths1 = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *docsDir1 = [dirPaths1 objectAtIndex:0]; 
NSString *documentPath1 = [docsDir1 stringByAppendingPathComponent:@"MyFovouriteRecordings"]; 

// How to pass here the Current Recording File (recordedTmpFile) to this new document Folder. 
} 

當我的NSLog recordedTmpFile它顯示的結果：文件：//localhost/Users/Umar/Library/Application%20Support/iPhone%20Simulator/4.2/Applications/9219677A-B0E3-4B78-B2E5-FEA49D689618/Documents/MyRecordings/06：12月：12_05：54：07％20PM +有源％20song

任何幫助將appriated.Thanks

Answer 1

-(IBAction)AddToFavourite { 
    NSArray *dirPaths1 = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *docsDir1 = [dirPaths1 objectAtIndex:0]; 
    NSString *documentPath1 = [docsDir1 stringByAppendingPathComponent:@"MyFovouriteRecordings"]; 
    NSString *soundFilePath1 = [documentPath1 stringByAppendingPathComponent:fileToPlay]; 
    // How to pass here the Current Recording File (recordedTmpFile) to this new document Folder. 

    // First check if the directory existst 
    if([[NSFileManager defaultManager] fileExistsAtPath:documentPath1]==NO) { 
     NSLog(@"Creating content directory: %@",documentPath1); 
     NSError *error=nil; 
     if([[NSFileManager defaultManager] createDirectoryAtPath:documentPath1 withIntermediateDirectories:NO attributes:nil error:&error]==NO) { 
      NSLog(@"There was an error in creating the directory: %@",error); 
     } 
    } 

    //then get the origin file path 
    NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *docsDir = [dirPaths objectAtIndex:0]; 
    NSString *documentPath = [docsDir stringByAppendingPathComponent:@"MyRecordings"]; 
    NSString *soundFilePath = [documentPath stringByAppendingPathComponent:fileToPlay]; 

    //Then convert paths to URL 
    NSURL* originURL = [NSURL fileURLWithPath:soundFilePath]; 
    NSURL* destinationURL = [NSURL fileURLWithPath:soundFilePath1]; 

    //Then, you have to copy the file 
    [[NSFileManager defaultManager] copyItemAtURL:destinationURL toURL:originURL error:NULL]; 
} 

應該這樣做，告訴我，如果有任何錯誤。

Answer 2

只需創建的NSData的實例，該原始文件。比寫它到另一個位置。

//write file to the other location 
NSData *myData = [[NSData alloc] initWithContentsOfFile:originalPath]; 

[myData writeToFile:newDataPath options:NSDataWritingAtomic error:&error]; 

//delete file from original location 
NSFileManager *fileManager = [[NSFileManager alloc] init]; 

[fileManager removeItemAtPath:originalPath error:&removeError];