用Cocoapods做過第三方庫的同學應該都知道資源文件（圖片、多語言文件等）要放在bundle里面

podspec資源文件寫法

• 需要打Bundle
  s.resources = "Classes/Resources/CTAssetsPickerController.bundle"

s.resources = "你bundle文件的路徑"

• 不需要打Bundle
  spec.resource_bundles = { 'CTAssetsPickerController' => ['CTAssetsPickerController/Resources/CTAssetsPicker.xcassets/*/*.png', 'CTAssetsPickerController/Resources/*.lproj'] }

或者
spec.resource_bundles = { 'CTAssetsPickerController' => ['CTAssetsPickerController/Resources/**/*'] }

**/*這個表示所有文件，包括文件夾

spec.resource_bundles = { '你的庫名' => ['資源文件路徑/**/*'] }

使用

• 多語言文件

 extension String {
    var calocale: String {
// 1.創(chuàng)建bundle
        //        let path = Bundle(for: CTAssetsPickerController.self).path(forResource: "CTAssetsPickerController", ofType: "bundle")!

// 這里for:類名可以隨便，只要是你庫里面的就行。
//  后面.bundle的文件名不能錯

// 2.創(chuàng)建bundle
        guard let path = Bundle(for: CTAssetCheckmark.self).path(forResource: "CTAssetsPickerController", ofType: "bundle") else {
            return nil
        }
        let CABundle = Bundle(path: path)

        return NSLocalizedString(self, tableName: "CTAssetsPicker", bundle: CABundle, value: "", comment: "")
    }
}

• 圖片

private var bundleImage: UIImage? {
        guard let path = Bundle(for: CTAssetCheckmark.self).path(forResource: "CTAssetsPickerController", ofType: "bundle") else {
            return nil
        }
        let CABundle = Bundle(path: path)
        return UIImage(named: "你要讀取的圖片", in:  CABundle, compatibleWith: nil)
    }

參考博客