java - 如何在 onCreateView Android 中调用方法

Question

如何在 android Fragment 中调用 onCreateView 中的方法？

onCreateView 代码:

 public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         final Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View rootView = inflater.inflate(R.layout.fragment_user_list, container, false);
    btnBusquedaUserList = (Button) rootView.findViewById(R.id.btnBuscarUserList);
    rvUserList = (RecyclerView) rootView.findViewById(R.id.rvUserList);
    rvUserList.setLayoutManager(new LinearLayoutManager(getContext()));
    txtCIbusqueda = (TextInputEditText) rootView.findViewById(R.id.txtCIUserList);

    getActivity().setTitle("Lista Usuarios Check In");
    Bundle args = getArguments();
    idUsuario = args.getString("idLogueado");

    GetClient();

    btnBusquedaUserList.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            ciUser = txtCIbusqueda.getText().toString();
            Object lista[] = new Object[2];
            lista[0] = ciUser;
            lista[1] = idUsuario;
            parametroApi.setDatoG(lista);
            GetClient();

        }
    });

    return rootView;


};

我的方法 GetClient()

public void GetClient() {
    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl("http://80.241.210.8:8080/Exma/Service/api/")
            .addConverterFactory(GsonConverterFactory.create())
            .build();
    ExmaApi service = retrofit.create(ExmaApi.class);
    Call<Respuesta<List<DataList>>>call=service.putClientList(parametroApi);

       call.enqueue(new Callback<Respuesta<List<DataList>>>() {
        @Override
        public void onResponse(Call<Respuesta<List<DataList>>> call, 
         Response<Respuesta<List<DataList>>> response) {
            if (response.isSuccessful()) {
                Respuesta<List<DataList>> respuesta = response.body();
                try {
                    if (respuesta.respuestaExitosa() == true) {
                        Log.d(TAG, "TodoBien: " + respuesta.toString());
                        rvAdapter = new MyRecyclerViewAdapter(getActivity().getApplicationContext(), respuesta);
                        rvUserList.setAdapter(rvAdapter);

                    }

                } catch (Exception e) {
                    Log.d(TAG, "onResponse" + "Ocurrio un Error");
                    e.printStackTrace();

                }
            }
        }

        @Override
        public void onFailure(Call<Respuesta<List<DataList>>> call, Throwable t) {
            Log.d(TAG, "TodoMal: " + t.getMessage().toString());

        }
    });


}

当我想在 onCreateView 中调用方法 GetClient() 时遇到问题，该方法没有启动，但是在按钮的 onClickListener 中，该方法没有启动问题，有什么方法可以调用方法吗？在 Fragments 的 onCreateView 中，我想在 fragment 开始时执行该方法

Answer 1

喜欢Activity，Fragment有自己的lifecycle

onCreateView : Called to have the fragment instantiate its user interface view. This is optional, and non-graphical fragments can return null (which is the default implementation). This will be called between onCreate(Bundle) and onActivityCreated(Bundle).

因此您应该将所有与图形元素无关的初始化移动到onStart() 中。例如:

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         final Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View rootView = inflater.inflate(R.layout.fragment_user_list, container, false);
    btnBusquedaUserList = (Button) rootView.findViewById(R.id.btnBuscarUserList);
    rvUserList = (RecyclerView) rootView.findViewById(R.id.rvUserList);
    rvUserList.setLayoutManager(new LinearLayoutManager(getContext()));
    txtCIbusqueda = (TextInputEditText) rootView.findViewById(R.id.txtCIUserList);

    return rootView;
};

@Override
public void onStart() {

    getActivity().setTitle("Lista Usuarios Check In");
    Bundle args = getArguments();
    idUsuario = args.getString("idLogueado");
    GetClient();

    btnBusquedaUserList.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            ciUser = txtCIbusqueda.getText().toString();
            Object lista[] = new Object[2];
            lista[0] = ciUser;
            lista[1] = idUsuario;
            parametroApi.setDatoG(lista);
            GetClient();

        }
    });
}

希望这对您有所帮助。

对不起我的英语。