Java RecylerView没有在碎片中支撑
在我的片段中，recyclerview没有出现。当我尝试在我的活动中填充结果时，正如预期的那样，但是在我的片段中，当我启动recyclerview时，它没有显示空白。 是，我的适配器中有getItemCount（它已在使用同一适配器的othr活动中工作） 我的片段初始化Java RecylerView没有在碎片中支撑,java,android,android-fragments,Java,Android,Android Fragments,在我的片段中，recyclerview没有出现。当我尝试在我的活动中填充结果时，正如预期的那样，但是在我的片段中，当我启动recyclerview时，它没有显示空白。 是，我的适配器中有getItemCount（它已在使用同一适配器的othr活动中工作） 我的片段初始化 public static ProfileSearchFragment newInstance(String searchText,String algoliaKey, String applicationId) {
public static ProfileSearchFragment newInstance(String searchText,String algoliaKey, String applicationId) {
ProfileSearchFragment fragment = new ProfileSearchFragment();
Bundle args = new Bundle();
args.putString(SearchText, searchText);
args.putString(AlgoliaKey, algoliaKey);
args.putString(ApplicationId, applicationId);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mSearchText = getArguments().getString(SearchText);
mAlgoliaKey = getArguments().getString(AlgoliaKey);
mApplicationId = getArguments().getString(ApplicationId);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_profile_search, container, false);
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
RecyclerView recyclerView = view.findViewById(R.id.profile_search_recyclerview);
Log.d(TAG, "onCreateView: getting the Searchtext hopefully " + mSearchText + ":" + mAlgoliaKey);
mUserImage = new ArrayList<>();
mUserName = new ArrayList<>();
mUserId = new ArrayList<>();
recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
recyclerView.setHasFixedSize(true);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
linearLayoutManager.setReverseLayout(true);
linearLayoutManager.setStackFromEnd(true);
linearLayoutManager.setSmoothScrollbarEnabled(true);
recyclerView.setLayoutManager(linearLayoutManager);
userSearchAdapter = new UserSearchAdapter(getContext(),mUserImage,mUserName,mUserId);
recyclerView.setAdapter(userSearchAdapter);
final Client client = new Client(mApplicationId, mAlgoliaKey);
final Index index = client.getIndex("Users");
if (mSearchText!=null){
Query query = new Query(mSearchText)
.setAttributesToRetrieve("user_username", "user_image_url", "user_id")
.setHitsPerPage(50);
index.searchAsync(query, new CompletionHandler() {
@Override
public void requestCompleted(JSONObject content, AlgoliaException error) {
try {
JSONArray hits = content.getJSONArray("hits");
List<String> list = new ArrayList<>();
for (int i = 0; i < hits.length(); i++) {
JSONObject jsonObject = hits.getJSONObject(i);
mUserName.add(jsonObject.getString("user_username"));
Log.d(TAG, "requestCompleted: Userrrrr: " + jsonObject.getString("user_username"));
mUserImage.add(jsonObject.getString("user_image_url"));
mUserId.add(jsonObject.getString("user_id"));
Log.d(TAG, "requestCompleted: Size: " + mUserImage.size());
userSearchAdapter.notifyDataSetChanged();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
});
}
public class UserSearchAdapter extends RecyclerView.Adapter<UserSearchAdapter.SearchViewHolder> {
private static final String TAG = "UserSearchAdapter";
private Context mContext;
private ArrayList<String> mUserImage = new ArrayList<>();
private ArrayList<String> mUserName = new ArrayList<>();
private ArrayList<String> mUserId = new ArrayList<>();
public UserSearchAdapter(Context mContext, ArrayList<String>
mUserImage, ArrayList<String> mUserName, ArrayList<String> mUserId) {
this.mContext = mContext;
this.mUserImage = mUserImage;
this.mUserName = mUserName;
this.mUserId = mUserId;
}
@NonNull
@Override
public SearchViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(mContext).inflate(R.layout.user_item,parent,false);
SearchViewHolder holder = new SearchViewHolder(view);
return holder;
}
@Override
public void onBindViewHolder(@NonNull final SearchViewHolder holder, final int position) {
Glide.with(mContext)
.load(mUserImage.get(position))
.placeholder(R.drawable.ic_profile)
.into(holder.image_profile);
holder.btn_follow.setVisibility(View.VISIBLE);
holder.username.setText(mUserName.get(position));
}
@Override
public int getItemCount() {
return mUserName.size();
}
class SearchViewHolder extends RecyclerView.ViewHolder{
private TextView username,fullname;
private CircleImageView image_profile;
private Button btn_follow;
public SearchViewHolder(@NonNull View itemView) {
super(itemView);
username = itemView.findViewById(R.id.username);
fullname = itemView.findViewById(R.id.fullname);
image_profile = itemView.findViewById(R.id.image_profile);
btn_follow = itemView.findViewById(R.id.btn_follow);
}
}
请检查您的适配器实现。
userSearchAdapter.notifyDataSetChanged（）；列表userSearchAdapter.updateData(<updated data>)
在适配器上已尝试移动userSearchAdapter.notifyDataSetChanged（）；在循环之外，但仍然没有填充。我没有任何适配器实现。我只是将edittext从我的mainactivity发送到fragmentSo…你的回收器适配器使用的项目列表在哪里？为什么不发布它的代码？请求真的完成了吗？@Shark我想添加适配器的代码会很模糊。很抱歉，没有发布问题简要地编辑了我的问题并添加了此日志打印的适配器代码，对吗？
log.d（标记，“requestCompleted:Size:+mUserImage.Size（））；notifyDataSetChanged（）上设置断点时会发生什么userSearchAdapter.updateData(<updated data>)
userSearchAdapter.notifyDataSetChanged()