Button.fromMap constructor Null safety

Button.fromMap(
  1. Map<String, dynamic> map
)

Implementation

factory Button.fromMap(Map<String, dynamic> map) {
  int val = map['button'];
  return Button(
    id: map['id'],
    appname: map['app_name'],
    packagename: map['package_name'],
    url: map['url'],
    icon: map['icon'],
  );
}