Add MP3's to apps main bundle without updating

Question

I have an app written in Swift that is similar to a soundboard. Currently I just have a bunch of mp3s in the apps main bundle. Is it possible to remotely add more mp3s into the apps main bundle and then change a variable in the code to account for the new mp3s? I want it so that I can dynamically add new mp3s without going through the whole app review process. Ideally a user would be able to open the app the next day and find that 15 new mp3s have been added without having to download an update. Is this a possibility?

Answer 1

You can’t write to the main bundle on iOS. Its contents are cryptographically signed as a part of the App Store submission process; modifying its contents would prevent the application from running.

Reference from THIS answer.

And you can get more information from this post: File write with [NSBundle mainBundle] fails.

File System Programming Guide:

• < Application_Home>/AppName.app

  This is the bundle directory containing the app itself. Do not write anything to this directory. To prevent tampering, the bundle directory is signed at installation time. Writing to this directory changes the signature and prevents your app from launching again.

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• < Application_Home>/Documents/

  Use this directory to store critical user documents and app data files. Critical data is any data that cannot be recreated by your app, such as user-generated content. The contents of this directory can be made available to the user through file sharing. The contents of this directory are backed up by iTunes.

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• < Application_Home>/Library/

  This directory is the top-level directory for files that are not user data files. You typically put files in one of several standard subdirectories but you can also create custom subdirectories for files you want backed up but not exposed to the user. You should not use this directory for user data files. The contents of this directory (with the exception of the Caches subdirectory) are backed up by iTunes. For additional information about the Library directory, see “The Library Directory Stores App-Specific Files.”

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You can read THIS if you want to write a file into document directory.

Hope this will help.