Question

我正在使用接口将对象列表从活动发送到片段。这是我的界面：

public interface CurrenciesSync {


void syncCurrencies(List<CurrencyModel> currencies);

}

这是我调用接口方法设置数据的方式：

    public void getCurrencies(){

    APIInterface apiInterface = APIClient.getClient().create(APIInterface.class);
    Call<GetCurrenciesModel> call = apiInterface.getCurrencies();
    call.enqueue(new Callback<GetCurrenciesModel>() {
        @Override
        public void onResponse(Call<GetCurrenciesModel> call, Response<GetCurrenciesModel> response) {

            if(response.isSuccessful()) {

                if (response.body().getStatus() == true){
                    currencies = new ArrayList<CurrencyModel>();
                    for (int i = 0 ; i< response.body().getCurrencies().size(); i++){

                        currencies.add(response.body().getCurrencies().get(i));


                    }
                    new FeesFragment();
                    CurrenciesSync currenciesSync = new CurrenciesSync() {
                        @Override
                        public void syncCurrencies(List<CurrencyModel> currencies) {
                            // your code

                        }
                    };
                    currenciesSync.syncCurrencies(currencies);


                }


        }

        @Override
        public void onFailure(Call<GetCurrenciesModel> call, Throwable t){

        }
    });

}

这是我用来获取片段数据的方法：

    @Override
public void syncCurrencies(List<CurrencyModel> currencies) {
        List<FeeItemModel> currency = new ArrayList<>();
        for (int i= 0 ; i < currencies.size() ; i++){

            currency.add(
                    new FeeItemModel(
                            currencies.get(i).getSomething(),
                            currencies.get(i).getSomething(),
                            currencies.get(i).getSomething(),
                            currencies.get(i).getSomething(),
                            currencies.get(i).getSomething())
            );            }


                    CurrenciesAdaptor currenciesAdaptor = new CurrenciesAdaptor(getContext(),currency);
                    RecyclerView.setAdapter(currenciesAdaptor);
                    LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
                    linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
                    RecyclerView.setLayoutManager(linearLayoutManager);
                    RecyclerView.setItemAnimator(new DefaultItemAnimator());

}

，但是以下方法无法运行。注意：片段也是在myActivity的另一个地方创建的，即使我试图创建一个新的片段实例以确保它被创建，也没有任何改变。

Answer 1

似乎通过接口对象在活动类中设置数据时，片段可能未附加到活动中，这似乎不是将数据从活动发送到片段的正确方法，因为这可能不是每次。

To use the recommended method to send data from activity to fragment use this link:-

接口方法未在片段中运行以接收数据

1 个答案: