how to clear all files like json files and images it comes with the iOS app on update?

Question

my iOS application has some json files in its bundle ,, i've updated these files and upload to the store , but when updated the old json files data is still shows up , the only solution i found is to delete the app and install it again but its not a good solution to send to all users

so is there any way to it programtically or any other way

P.S : i tried to change the name of the json files , but its start to crash because the app can't see the path resource of the bundle with the new name here is my code to call these files

{
 NSString* aFileName = @"Models.json";

NSString * fileDocumentPath = [NSString stringWithFormat:@"%@/%@", [self getDocumentsDirectoryPath], aFileName];

NSFileManager * fileMngr = [NSFileManager defaultManager];
 NSString * file = [aFileName stringByReplacingOccurrencesOfString:@".json" withString:@""];

 NSString * sourcePath =  [[NSBundle mainBundle] pathForResource:file ofType:@"json"];

 NSError *error;
 [fileMngr copyItemAtPath:sourcePath toPath:fileDocumentPath error:&error];
}

-(NSString *) getDocumentsDirectoryPath {
    NSArray *pathArray = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    documentsDirectoryPath = [pathArray objectAtIndex:0];

    return documentsDirectoryPath;
}

Answer 1

You can do one thing , before copying the file just check if the file exist , if exist then delete the file and then copy the new file. This should solve your issue.

Check below link for deleting files How do I delete a file in my apps documents directory?

Delete specified file from document directory

Regards, Anil

Answer 2

if ([fileMngr fileExistsAtPath:fileDocumentPath isDirectory:NO]) {
    [fileMngr removeItemAtPath:fileDocumentPath error:nil];
}

 [fileMngr copyItemAtPath:sourcePath toPath:fileDocumentPath error:&error];

Answer 3

Swift 3:

   func deleteFile(_ filePath:URL) {
        guard FileManager.default.fileExists(atPath: filePath.path) else {
            return
        }
        do {
            try FileManager.default.removeItem(atPath: filePath.path)
        } catch {
            print("Unable to delete file.")
        }
    }

    let fileURL = URL(fileURLWithPath: NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).first! + "namefile.json")
    deleteFile(fileURL)