Swift version: 5.1
It’s common to store resource data like text files and sound effects inside your bundle, but loading them must be done in a particular way to avoid problems.
Rather than try to figure out the layout of your bundle at runtime, the correct thing to do is call the
path(forResource:) method if you’re looking for a string path, or
url(forResource:) if you’re looking for a
For example, these two lines find the path to input.txt inside the bundle, as both a string and a
let stringPath = Bundle.main.path(forResource: "input", ofType: "txt") let urlPath = Bundle.main.url(forResource: "input", withExtension: "txt")
Obviously you only need one of those – if you get to choose then it’s safer to go with the
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Available from iOS
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.