import 'package:plugin_platform_interface/plugin_platform_interface.dart'; import 'umeng_common_method_channel.dart'; abstract class UmengCommonPlatform extends PlatformInterface { /// Constructs a UmengCommonPlatform. UmengCommonPlatform() : super(token: _token); static final Object _token = Object(); static UmengCommonPlatform _instance = MethodChannelUmengCommon(); /// The default instance of [UmengCommonPlatform] to use. /// /// Defaults to [MethodChannelUmengCommon]. static UmengCommonPlatform get instance => _instance; /// Platform-specific implementations should set this with their own /// platform-specific class that extends [UmengCommonPlatform] when /// they register themselves. static set instance(UmengCommonPlatform instance) { PlatformInterface.verifyToken(instance, _token); _instance = instance; } Future getPlatformVersion() { throw UnimplementedError('platformVersion() has not been implemented.'); } }