type 'int' is not subtype of type 'String' on Flutter

问题

I modified description value to 1 on my database.

List<DataEquipmentReg> values = snapshot.data;


 assetArray.add('${values[i].eq_no.toString()} : ${values[i].description.toString()}');

After edit description value to String, Error is not coming

DataEquipmentReg POJO Class

class DataEquipmentReg {
 final String eq_no;
  final String description;
}

Widget

   Text(assetArray[index].toString(),),

Database in sqlite

  await db.execute("""CREATE TABLE EquipmentRegTable(eq_no STRING, description STRING)""");

回答1:

I solved this problem like this,

in my read data on cache method, I changed this,

  Future<List<DataEquipmentReg>> displayEquipmentReg() async {
    var db = await db1;
    final List<Map<String, dynamic>> maps = await db.query('EquipmentRegTable');

    return List.generate(maps.length, (i) {
      return DataEquipmentReg(
        eq_no: '${maps[i]['eq_no']}',
        description'${ maps[i]['description']}',
      );
    });
  }

来源：https://stackoverflow.com/questions/56375509/type-int-is-not-subtype-of-type-string-on-flutter