flutter - 如何在getx上返回ui之前执行db查询

Question

我想先从db获取数据，然后在ui上显示，如何让这个动作每次在返回ui之前执行？

class TestScreen extends StatelessWidget {
  // execute this method every time before return the ui.
  data = getDataFromDB();
  
  return ListView.builder(
    itemCount: data.count;
    itemBuilder: ...
  );
}

标签： flutterflutter-getx

Answer 1

最好在导航到特定屏幕之前传递数据库数据，

data = db.query();
Get.ToNamed('TestScreen', arguments: data);

class TestScreen extends StatelessWidget {
  return ListView.builder(
    itemCount: Get.arguments;
    itemBuilder: ...
  );
}