Enable Device Screen Rotation Landscape or Potrait, only for Tablet Device by Flutter

check device is tablet

class DeviceUtil {
  static String get _getDeviceType {
    final data = MediaQueryData.fromWindow(WidgetsBinding.instance.window);
    return data.size.shortestSide < 550 ? 'phone' : 'tablet';
  }

  static bool get isTablet {
    return _getDeviceType == 'tablet';
  }
}

DeviceUtil.isTablet; //true

use of this

  if(DeviceUtil.isTablet){
     //landscape-or-potrait
}else{
//landscape-or-potrait
}

You can set portrait with SystemChrome

final data = MediaQueryData.fromWindow(WidgetsBinding.instance!.window);
if(data.size.shortestSide > 600) { // check if its bigger
  SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
    DeviceOrientation.portraitDown,
  ]);
} else { // otherwise will be ..
    SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
  ]);
}

Play with digit to get the best