从文档目录中删除指定的文件

问题描述

我想删除应用文档目录中的图片。我写的删除图片的代码是：

I want to delete an image from my app document directory. Code I have written to delete image is:

 -(void)removeImage:(NSString *)fileName
{
    fileManager = [NSFileManager defaultManager];
    paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    documentsPath = [paths objectAtIndex:0];
    filePath = [documentsPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@", fileName]];
    [fileManager removeItemAtPath:filePath error:NULL];
    UIAlertView *removeSuccessFulAlert=[[UIAlertView alloc]initWithTitle:@"Congratulation:" message:@"Successfully removed" delegate:self cancelButtonTitle:@"Close" otherButtonTitles:nil];
    [removeSuccessFulAlert show];
}

部分工作。此代码从目录中删除文件，但是当我检查目录中的内容时，它仍然在那里显示图像名称。我想从目录中完全删除该文件。我应该在代码中更改什么来做同样的事情？谢谢

Its working partially. This code deleting file from directory, but when I'm checking for the contents in directory, it still showing the image name there. I want to completely remove that file from directory. What should I change in the code to do the same? Thanks

推荐答案

我检查了你的代码。它对我有用。使用下面的修改代码检查您获得的任何错误

I checked your code. It's working for me. Check any error you are getting using the modified code below

- (void)removeImage:(NSString *)filename
{
  NSFileManager *fileManager = [NSFileManager defaultManager];
  NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];

  NSString *filePath = [documentsPath stringByAppendingPathComponent:filename];
  NSError *error;
  BOOL success = [fileManager removeItemAtPath:filePath error:&error];
  if (success) {
      UIAlertView *removedSuccessFullyAlert = [[UIAlertView alloc] initWithTitle:@"Congratulations:" message:@"Successfully removed" delegate:self cancelButtonTitle:@"Close" otherButtonTitles:nil];
      [removedSuccessFullyAlert show];
  }
  else
  {
      NSLog(@"Could not delete file -:%@ ",[error localizedDescription]);
  }
}

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