一、私有库中使用图片(WIIVersionBusiness为例)

1、在Assets文件夹中存放图片资源

2、在WIIVersionBusiness.podspec中导入资源

  s.resource_bundles = {
    'WIIVersionBusiness' => ['WIIVersionBusiness/Assets/*.png']
  }

3、在私有库中使用图片

extension Bundle {
  public static func customFor(framework: String) -> Bundle? {
        var path = Bundle.main.path(forResource: "Frameworks", ofType: nil) ?? ""
        path += "/\(framework).framework/\(framework).bundle"
        return Bundle(path: path)
    }
}

extension UIImage {
    static public func bundleImage(framework: String, name: String) -> UIImage? {
        let bundle = Bundle.customFor(framework: framework)
        return UIImage(named: name, in: bundle, compatibleWith: nil)
    }
}

let image = UIImage.bundleImage(framework: "WIIVersionBusiness", name: "n_version_bg")

二、在私有库中使用其他库（以高德地图SDK为例）
1、在Vendors下保存地图SDK

2、在WIIMapFrame..podspec中导入资源

  s.source_files = 'WIIMapFrame/Classes/**/*'
  s.public_header_files = 'WIIMapFrame/Classes/**/*.h'
  s.frameworks = 'CoreTelephony', 'SystemConfiguration', 'Security', 'GLKit', 'CoreLocation', 'ExternalAccessory'
  s.libraries = 'c++', 'z'
  s.vendored_frameworks = 'WIIMapFrame/Vendors/*.framework'
  s.preserve_paths = 'WIIMapFrame/Vendors/*.framework'
  s.resources = 'WIIMapFrame/Vendors/MAMapKit.framework/AMap.bundle'

  s.pod_target_xcconfig = {
#'FRAMEWORK_SEARCH_PATHS' => '${PODS_ROOT}/WIIMapFrame/Vendors',
            'HEADER_SEARCH_PATHS' => '$(PODS_ROOT)/WIIMapFrame/Vendors/*.framework/Headers',
            'LD_RUNPATH_SEARCH_PATHS' => '$(PODS_ROOT)/WIIMapFrame/Vendors/',
            'OTHER_LDFLAGS' => '-ObjC'
  }