Path to bundle of iOS framework

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I am working on a framework for iOS, which comes with some datafiles. To load them into a Dictionary I do something like this:

public func loadPListFromBundle(filename: String, type: String) -> [String : AnyObject]? {
    guard
       let bundle = Bundle(for: "com.myframework")
       let path = bundle.main.path(forResource: filename, ofType: type),
       let plistDict = NSDictionary(contentsOfFile: path) as? [String : AnyObject]
    else { 
       print("plist not found")
       return nil 
    }

    return plistDict
}

If I use this in a playground with the framework, it works as intended.

But if I use the framework embedded in an app, it doesn't work anymore, the "path" now points to the bundle of the app, not of the framework.

How do I make sure that the bundle of the framework is accessed?

EDIT: the code above resides in the framework, not in the app.

EDIT2: the code above is a utility function, and is not part of a struct or class.

5 Answers

Swift 5

let bundle = Bundle(for: Self.self)
let path = bundle.path(forResource: "filename", ofType: ".plist")

Simply specify the class name of the resource and below function will give you the Bundle object with which the class is associated with, so if class is associated with a framework it will give bundle of the framework.

let bundle = Bundle(for: <YourClassName>.self)
import class Foundation.Bundle

private class BundleFinder {}

extension Foundation.Bundle {
    /// Returns the resource bundle associated with the current Swift module.
    static var module: Bundle = {
        let bundleName = "ID3TagEditor_ID3TagEditorTests"

        let candidates = [
            // Bundle should be present here when the package is linked into an App.
            Bundle.main.resourceURL,

            // Bundle should be present here when the package is linked into a framework.
            Bundle(for: BundleFinder.self).resourceURL,

            // For command-line tools.
            Bundle.main.bundleURL,
        ]

        for candidate in candidates {
            let bundlePath = candidate?.appendingPathComponent(bundleName + ".bundle")
            if let bundle = bundlePath.flatMap(Bundle.init(url:)) {
                return bundle
            }
        }
        fatalError("unable to find bundle named ID3TagEditor_ID3TagEditorTests")
    }()
}

From: Source

---Update---

It provides 3 kind of most comment usages about how to get the correct bundle, this is very useful especially when you are developing your own framework or using Cocoapods.

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