我的應用程序中出現(xiàn)了這個奇怪的事情。我有一個AppCompatActivity，ViewPager里面有兩個片段。我已添加LottieAnimationView到這兩個片段中。在FragmentA我使用從服務器獲取數(shù)據(jù)Retrofit時，它隱藏了LottieAnimationView. 在FragmentB（僅用于檢查問題所在）中，我只是用來Handler隱藏LottieAnimationView3 秒后的內容?，F(xiàn)在，每當我最小化應用程序，然后再次打開它時，我都會看到LottieAnimationView我setVisibility(View.GONE)只在FragmentA. 在 中，當我最小化并再次打開應用程序（按預期工作）后，F(xiàn)ragmentB我看不到視圖。setVisibility(View.GONE)這是我在 中看到的圖像FragmentA。處于LottieAnimationView暫停狀態(tài)。這是我的代碼FragmentA。public class FragmentA extends Fragment { private AdapterEventStore mAdapter; private List<Item> mStore; private final String hostName = "https://xxx.xxx.xxx"; private View view; private Context context; private LottieAnimationView lottieAnimationView; @Nullable @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { view = inflater.inflate(R.layout.fragment_a, container, false); context = view.getContext(); lottieAnimationView = view.findViewById(R.id.ais_lav_loading); lottieAnimationView.setVisibility(View.VISIBLE); initRecyclerView(); return view; } private void initRecyclerView() { RecyclerView store = view.findViewById(R.id.ais_rv_event_store); store.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL)); mStore = new ArrayList<>(); mAdapter = new AdapterEventStore(context, mStore); store.setAdapter(mAdapter); fetchDataFromServer(); }
2 回答
波斯汪
TA貢獻1811條經(jīng)驗 獲得超4個贊
從 onCrete 中刪除這一行并將其添加到 fetchDataFromServer() 方法中，如下所示。
public class FragmentA extends Fragment {
private AdapterEventStore mAdapter;
private List<Item> mStore;
private final String hostName = "https://xxx.xxx.xxx";
private View view;
private Context context;
private LottieAnimationView lottieAnimationView;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_a, container, false);
context = view.getContext();
lottieAnimationView = view.findViewById(R.id.ais_lav_loading);
lottieAnimationView.setVisibility(View.VISIBLE);
initRecyclerView();
return view;
}
private void initRecyclerView() {
RecyclerView store = view.findViewById(R.id.ais_rv_event_store);
store.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));
mStore = new ArrayList<>();
mAdapter = new AdapterEventStore(context, mStore);
store.setAdapter(mAdapter);
fetchDataFromServer();
}
private void fetchDataFromServer() {
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
httpClient.addInterceptor(logging);
final Retrofit retrofit = new Retrofit.Builder()
.client(httpClient.build())
.addConverterFactory(GsonConverterFactory.create())
.baseUrl(hostName)
.build();
APIGetItem itemShop = retrofit.create(APIGetItem.class);
Call<ModelEventExclusive> call = itemShop.getEventStore(hostName);
call.enqueue(new Callback<ModelEventExclusive>() {
@Override
public void onResponse(Call<ModelEventExclusive> call, Response<ModelEventExclusive> response) {
Log.e("Response: ", response.body().getItems().get(0).getItemName());
mEventStore.addAll(response.body().getItems());
mAdapter.notifyDataSetChanged();
hideLottieAnimation();
}
@Override
public void onFailure(Call<ModelEventExclusive> call, Throwable t) {
hideLottieAnimation();
Toast.makeText(context, "Error:"+t.getLocalizedMessage(), Toast.LENGTH_SHORT).show();
Log.e("Error occurred: ", t.getMessage());
}
});
}
private void hideLottieAnimation(){
lottieAnimationView.cancelAnimation();
lottieAnimationView.setVisibility(View.GONE);
}
@Override
public void onResume() {
super.onResume();
lottieAnimationView.setVisibility(View.GONE);
}
}
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