How to remove Temporary Directory files fron iOS app?

Question

i used code for remove Temporary Directory files when using device.

-(void) clearAllTempFiles {
    NSString *path = NSTemporaryDirectory();
    if ([path length] > 0)
    {
        NSError *error = nil;  
        NSFileManager *fileManager = [NSFileManager defaultManager];

        BOOL deleted = [fileManager removeItemAtPath:path error:&error];

        if (deleted != YES || error != nil)
        {

        }
        else{
            // Recreate the Documents directory
            [fileManager createDirectoryAtPath:path withIntermediateDirectories:NO attributes:nil error:&error];
        }

    }
}

it's not working fine? this is right code for deleting files from Temporary Directory?

pls help me?

you have not permission to delete the files of temporary directory. permission to that folder is drwx------ so you do not delete files. — hchouhan02, Mar 12 '12 at 06:42

score 6 · Answer 1 · answered Mar 12 '12 at 06:37

You can get the tmp directory name on your mac by using this in your code:

Code:

(void)cacheDirectory {

    NSString *tempPath = NSTemporaryDirectory();

    NSLog(@"Temp Value = %@", items);
}

Call the method from wherever you want.

This will return the tmp folder name, then in finder do (cmd-shift-G) and paste the response you got from the console window.

The following will clear the TMP directory used by the Simulator.

Code:

NSString *tempPath = NSTemporaryDirectory();
NSArray *dirContents = [[NSFileManager defaultManager] directoryContentsAtPath:tempPath];
NSArray *onlyJPGs = [dirContents filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"self ENDSWITH '.jpg'"]];

NSFileManager *fileManager = [NSFileManager defaultManager];

if (onlyJPGs) { 
    for (int i = 0; i < [onlyJPGs count]; i++) {
    NSLog(@"Directory Count: %i", [onlyJPGs count]);
    NSString *contentsOnly = [NSString stringWithFormat:@"%@%@", tempPath, [onlyJPGs objectAtIndex:i]];
    [fileManager removeItemAtPath:contentsOnly error:nil];
}

The above code clears only JPGs from the directory, so if you want to clear anything else then amend it.

thats happens because your application is running in background process. if you do not want to run application in background in info.plist file set "Application does not run in background"=YES — hchouhan02, Mar 12 '12 at 06:47
my problem is: I have 3 pages application when i stay on one page(loginscreen) in on page and i press home button. Again i press my application icon on springboard now i don't want show loginscreen i want to go another screen (secondscreen). But i got first screen(loginscreen) is appear on background screen ofter that second screen is getting for this purpose i used cleanallTempdirectoryfile? — sreenivas, Mar 12 '12 at 06:51

score 5 · Answer 2 · answered Apr 10 '14 at 06:51

I found simple one

NSArray* tmpDirectory = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:NSTemporaryDirectory() error:NULL];
for (NSString *file in tmpDirectory) {
    [[NSFileManager defaultManager] removeItemAtPath:[NSString stringWithFormat:@"%@%@", NSTemporaryDirectory(), file] error:NULL];
}

How to remove Temporary Directory files fron iOS app?

2 Answers2