How to access file included in app bundle in Swift?

Question

I know there are a few questions pertaining to this, but they\'re in Objective-C.

How can I access a .txt file included in my app using Swift on

Answer 1

Just a quick update for using this code with Swift 4:

Bundle.main.url(forResource:"YourFile", withExtension: "FileExtension")

And the following has been updated to account for writing the file out:

var myData: Data!

func checkFile() {
    if let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).last {
        let fileURL = documentsDirectory.appendingPathComponent("YourFile.extension")
        do {
            let fileExists = try fileURL.checkResourceIsReachable()
            if fileExists {
                print("File exists")
            } else {
                print("File does not exist, create it")
                writeFile(fileURL: fileURL)
            }
        } catch {
            print(error.localizedDescription)
        }
    }
}

func writeFile(fileURL: URL) {
    do {
        try myData.write(to: fileURL)
    } catch {
        print(error.localizedDescription)
    }
}

This particular example is not the most flexible, but with a little bit of work you can easily pass in your own file names, extensions and data values.