Flutter Error Solved - type 'Null' is not a subtype of type 'List'

 

type 'Null' is not a subtype of type 'List<Name>'

Kalau bertemu kaya gini, pastikan tidak ada data yang dekembalikan berupa null atau kosong

jika mau mendapatkan null dari database, perlu null safety. contoh pada inisialisasi kayak gini :

final int? id ;

TUH CONTOHNYA : tambahi aja ? setelah tipe data

class Presence {

final int? id;

final int? teacherId;

final String? timeIn;

final String? timeOut;

final String? late;

final String? overtime;

final String? note;

final String? date;

const Presence({

required this.id,

required this.teacherId,

required this.timeIn,

required this.timeOut,

required this.late,

required this.overtime,

required this.note,

required this.date,

});

factory Presence.fromJson(Map<String, dynamic> json) {

return Presence(

id: json['id'],

teacherId: json['teacher_id'],

timeIn: json['time_in'],

timeOut: json['time_out'],

late: json['late'],

overtime: json['overtime'],

note: json['note'],

date: json['date']);

}

}