如何使用getx在扑朔迷离中找到控制器
我正在尝试使用get.conter来使用thristListController，但是Flutter告诉我错误，
抛出'$ s“”找不到。您需要调用“ get.put（$ s（））”或“ get.lazyput（（）=＆gt; $ s（））”''
s thereslistListController
class LessonListController extends GetxService {
final LessonListRepo lessonListRepo;
LessonListController({required this.lessonListRepo});
List<dynamic> _lessonList = [];
List<dynamic> get lessonList => _lessonList;
Future<void> getLessonList() async {
Response response = await lessonListRepo.getLessonList();
if (response.statusCode == 200) {
print('got you');
_lessonList = [];
_lessonList.addAll(Course.fromJson(response.body).lessons);
// update();
//update
} else {}
}
}
依赖项如下，
Future<void> init() async {
//api client
Get.lazyPut(() => ApiClient(appBaseUrl: AppConstants.BASE_URL));
//repos
Get.lazyPut(() => LessonListRepo(apiClient: Get.find()));
//controllers
Get.lazyPut(() => LessonListController(lessonListRepo: Get.find()));
}
这是Main.dart文件
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
Get.find<LessonListController>().getLessonList();
// Get.lazyPut<LessonListController>(() =>get.() {
// };
return const GetMaterialApp(
debugShowCheckedModeBanner: false,
home: Diary(),
);
}
}
，非常感谢您很多。
I am trying to use Get.find to use LessonListController, but flutter tells me error,
throw '"$S" not found. You need to call "Get.put($S())" or "Get.lazyPut(()=>$S())"'
below is Lessonlistcontroller
class LessonListController extends GetxService {
final LessonListRepo lessonListRepo;
LessonListController({required this.lessonListRepo});
List<dynamic> _lessonList = [];
List<dynamic> get lessonList => _lessonList;
Future<void> getLessonList() async {
Response response = await lessonListRepo.getLessonList();
if (response.statusCode == 200) {
print('got you');
_lessonList = [];
_lessonList.addAll(Course.fromJson(response.body).lessons);
// update();
//update
} else {}
}
}
dependencies as below,
Future<void> init() async {
//api client
Get.lazyPut(() => ApiClient(appBaseUrl: AppConstants.BASE_URL));
//repos
Get.lazyPut(() => LessonListRepo(apiClient: Get.find()));
//controllers
Get.lazyPut(() => LessonListController(lessonListRepo: Get.find()));
}
here is the main.dart file
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
Get.find<LessonListController>().getLessonList();
// Get.lazyPut<LessonListController>(() =>get.() {
// };
return const GetMaterialApp(
debugShowCheckedModeBanner: false,
home: Diary(),
);
}
}
Thank you very much.
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您可以在标签的帮助下轻松实现这一目标。
但是，请确保您已经使用标签名称初始化了控制器。
You can easily achieve that with the help of tag.
But make sure you have initialized the controller with the tag name.
您尚未使用 threslistController 使用 get.put（threnlistController（））;
get.find（）用于获取创建控制器的已经初始化的实例。
getXControlled作为单身顿的作品，因此每当您调用get.find（），get.find（）只有在您先前已称为get..pot..pot..pot..lazyput时才能找到已创建的实例
You haven't initialized the LessonListController using Get.put(LessonListController());
Get.find() is used to get the already initialized instance of Created controller.
GetxControlled works as Singleton, So it finds the already created instance every time you call Get.find() , Get.find() will only work if you have previously called Get.put or Get.lazyPut