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[英]the argument type 'map dynamic dynamic ' can't be assigned to the parameter type 'map string dynamic'
[英]The argument type 'Map<dynamic, dynamic>' can't be assigned to the parameter type 'Map<String, dynamic>'
我正在使用 flutter 和 sqlite。 'maps[i]' 中发生错误
Future<List<Employee>> getEmployee() async {
var dbClient = await db;
List<Map> maps = await dbClient!.query('employee', columns: ['id', 'name','phone']);
List<Employee> employees = [];
if (maps.length > 0) {
for (int i = 0; i < maps.length; i++) {
employees.add(Employee.fromMap(maps[i]));
}
}
return employees;
}
这是因为Employee.fromMap
期望Map<String, dynamic>
更改您的 function 如下。
Future<List<Employee>> getEmployee() async {
var dbClient = await db;
List<Map> maps = await dbClient!.query('employee', columns: ['id', 'name','phone']);
List<Employee> employees = [];
if (maps.length > 0) {
for (int i = 0; i < maps.length; i++) {
employees.add(Employee.fromMap(Map<String, dynamic>.from(maps[i])));
}
}
return employees;
}
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