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