如何刪除文檔目錄中的特定項目ios objective c

Question

我想從DocumentDirectory中刪除特定項目，即我在DocumentDirectory中有50個對象，我想從中刪除5個不同的元素。我使用下面的代碼來獲取DocumentDirectory對象。

NSURL *vedioURL; 
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 

NSString *documentsDirectory = [paths objectAtIndex:0]; 

NSArray *filePathsArray = [[NSFileManager defaultManager] subpathsOfDirectoryAtPath:documentsDirectory error:nil]; 

NSLog(@"files array %@", filePathsArray); 

任何一個可以幫助我解決這個問題

Answer 1

你可以嘗試這樣的方式

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 
if (filePathsArray.count >= 6) { 
    for (NSInteger i=filePathsArray.count-6; i < filePathsArray.count; i++) { 
     NSString *filePath = [documentsDirectory stringByAppendingPathComponent:[filePathsArray objectAtIndex:i]]; 
     if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) { 
      NSError *error; 
      if (![[NSFileManager defaultManager] removeItemAtPath:filePath error:&error]) { 
       NSLog(@"Delete error: %@", error); 
      } 
     } 
    } 
} 

Answer 2

你可以試試下面的辦法

NSString *path = nil; 
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
path = [paths[0] stringByAppendingPathComponent:@"YOUR DIR"]; 
path = [path stringByAppendingPathComponent:@"YOUR FILE"]; 
NSError *error; 
if ([[NSFileManager defaultManager] fileExistsAtPath:path])  
{ 
    if (![[NSFileManager defaultManager] removeItemAtPath:path error:&error]) //Delete it 
    { 
     NSLog(@"Delete file error: %@", error); 
    } 
}