How to remove tmp directory files of an ios app?

Yes. This method works well:

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

Swift 3 version as extension:

extension FileManager { func clearTmpDirectory() { do { let tmpDirectory = try contentsOfDirectory(atPath: NSTemporaryDirectory()) try tmpDirectory.forEach {[unowned self] file in let path = String.init(format: "%@%@", NSTemporaryDirectory(), file) try self.removeItem(atPath: path) } } catch { print(error) } } } 

Example of usage:

FileManager.default.clearTmpDirectory() 

Thanks to Max Maier, Swift 2 version:

func clearTmpDirectory() { do { let tmpDirectory = try NSFileManager.defaultManager().contentsOfDirectoryAtPath(NSTemporaryDirectory()) try tmpDirectory.forEach { file in let path = String.init(format: "%@%@", NSTemporaryDirectory(), file) try NSFileManager.defaultManager().removeItemAtPath(path) } } catch { print(error) } } 

Swift 4

One of the possible implementations

extension FileManager { func clearTmpDirectory() { do { let tmpDirURL = FileManager.default.temporaryDirectory let tmpDirectory = try contentsOfDirectory(atPath: tmpDirURL.path) try tmpDirectory.forEach { file in let fileUrl = tmpDirURL.appendingPathComponent(file) try removeItem(atPath: fileUrl.path) } } catch { //catch the error somehow } } } 

Thanks to Max Maier and Roman Barzyczak. Updated to Swift 3, using URLs instead of strings.

Swift 3

func clearTmpDir(){ var removed: Int = 0 do { let tmpDirURL = URL(string: NSTemporaryDirectory())! let tmpFiles = try FileManager.default.contentsOfDirectory(at: tmpDirURL, includingPropertiesForKeys: nil, options: .skipsHiddenFiles) print("\(tmpFiles.count) temporary files found") for url in tmpFiles { removed += 1 try FileManager.default.removeItem(at: url) } print("\(removed) temporary files removed") } catch { print(error) print("\(removed) temporary files removed") } } 

Try this code to remove NSTemporaryDirectory files

-(void)deleteTempData { NSString *tmpDirectory = NSTemporaryDirectory(); NSFileManager *fileManager = [NSFileManager defaultManager]; NSError *error; NSArray *cacheFiles = [fileManager contentsOfDirectoryAtPath:tmpDirectory error:&error]; for (NSString *file in cacheFiles) { error = nil; [fileManager removeItemAtPath:[tmpDirectory stringByAppendingPathComponent:file] error:&error]; } } 

and to check data remove or not write code in didFinishLaunchingWithOptions

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; [self.window makeKeyAndVisible]; NSString *tmpDirectory = NSTemporaryDirectory(); NSFileManager *fileManager = [NSFileManager defaultManager]; NSError *error; NSArray *cacheFiles = [fileManager contentsOfDirectoryAtPath:tmpDirectory error:&error]; NSLog(@"TempFile Count ::%lu",(unsigned long)cacheFiles.count); return YES; } 

I know i'm late to the party but i'd like to drop my implementation which works straight on URLs, too:

let fileManager = FileManager.default let temporaryDirectory = fileManager.temporaryDirectory try? fileManager .contentsOfDirectory(at: temporaryDirectory, includingPropertiesForKeys: nil, options: .skipsSubdirectoryDescendants) .forEach { file in try? fileManager.removeItem(atPath: file.path) } 

This works on a jailbroken iPad, but I think this should work on a non-jailbroken device also.

-(void) clearCache { for(int i=0; i< 100;i++) { NSLog(@"warning CLEAR CACHE--------"); } NSFileManager *fileManager = [NSFileManager defaultManager]; NSError * error; NSArray * cacheFiles = [fileManager contentsOfDirectoryAtPath:NSTemporaryDirectory() error:&error]; for(NSString * file in cacheFiles) { error=nil; NSString * filePath = [NSTemporaryDirectory() stringByAppendingPathComponent:file ]; NSLog(@"filePath to remove = %@",filePath); BOOL removed =[fileManager removeItemAtPath:filePath error:&error]; if(removed ==NO) { NSLog(@"removed ==NO"); } if(error) { NSLog(@"%@", [error description]); } } } 

// // FileManager+removeContentsOfTemporaryDirectory.swift // // Created by _ _ on _._.202_. // Copyright © 202_ _ _. All rights reserved. // import Foundation public extension FileManager { /// Perform this method on a background thread. /// Returns `true` if : /// * all temporary folder files have been deleted. /// * the temporary folder is empty. /// Returns `false` if : /// * some temporary folder files have not been deleted. /// Error handling: /// * Throws `contentsOfDirectory` directory access error. /// * Ignores single file `removeItem` errors. /// @discardableResult func removeContentsOfTemporaryDirectory() throws -> Bool { if Thread.isMainThread { let mainThreadWarningMessage = "\(#file) - \(#function) executed on main thread. Do not block the main thread." assertionFailure(mainThreadWarningMessage) } do { let tmpDirURL = FileManager.default.temporaryDirectory let tmpDirectoryContent = try contentsOfDirectory(atPath: tmpDirURL.path) guard tmpDirectoryContent.count != 0 else { return true } for tmpFilePath in tmpDirectoryContent { let trashFileURL = tmpDirURL.appendingPathComponent(tmpFilePath) try removeItem(atPath: trashFileURL.path) } let tmpDirectoryContentAfterDeletion = try contentsOfDirectory(atPath: tmpDirURL.path) return tmpDirectoryContentAfterDeletion.count == 0 } catch let directoryAccessError { throw directoryAccessError } } } 

Use this dedicated code to remove all tmp files:

let directory = FileManager.default.temporaryDirectory try contentsOfDirectory(at: directory, includingPropertiesForKeys: []).forEach(removeItem) 

_{You filter the contents before performing the forEach if you need}