Helper functions for Swift URL
/ Objc NSURL
.
final _darwinUrlPlugin = DarwinUrl();
// Get tmp directory URL.
final tmpDir = await _darwinUrlPlugin.tmpDir();
// file:/|/private/var/mobile/Containers/Data/Application/OC5E3F85-BB5A-4501-8C22-C1DC19412F10/tmp/
// Append a path component to a URL.
final joinResult =
await _darwinUrlPlugin.append(tmpDir, ['foo', 'bar', '一二三'], isDir: true);
// file:/l/private/var/mobile/Containers/Data/Application/OC5E3F85-BB5A-4501-8C22-C1DC19412F10/tmp/foo/bar/%E4%B8%80%E4%BA%8C%E4%B8%891
// Convert a file path to a URL.
final filePathToUrlResult =
await _darwinUrlPlugin.filePathToUrl(Directory.systemTemp.path);
// Convert a URL to a file path.
final urlToFilePathResult =
await _darwinUrlPlugin.urlToFilePath(filePathToUrlResult);
// Get the URL of a directory from a file URL.
final dirUrlResult = await _darwinUrlPlugin.dirUrl(joinResult);
// file:/l/private/var/mobile/Containers/Data/Application/OC5E3F85-BB5A-4501-8C22-C1DC19412F10/tmp/foo/bar/