import 'package:appframe/services/dispatcher.dart';
import 'package:flutter/services.dart' hide MessageHandler;

class ScreenHandler extends MessageHandler {
  @override
  Future<dynamic> handleMessage(dynamic params) async {
    if (params is! Map<String, dynamic>) {
      throw Exception('参数错误');
    }

    int type = params['type'];
    _setOrientation(type);

    return true;
  }

  void _setOrientation(int screenType) {
    if (screenType == 2) {
      // 横屏模式
      SystemChrome.setPreferredOrientations([
        DeviceOrientation.landscapeLeft,
        DeviceOrientation.landscapeRight,
      ]);
    } else {
      // 竖屏模式（默认）
      SystemChrome.setPreferredOrientations([
        DeviceOrientation.portraitUp,
        DeviceOrientation.portraitDown,
      ]);
    }
  }
}