Mobile Technologies Web Technologies Digital Marketing Creative Design Career Talk Medical General Tech Interviews Internet Of Things

Embark on a journey of knowledge! Take the quiz and earn valuable credits.

Take A Quiz

Challenge yourself and boost your learning! Start the quiz now to earn credits.

Take A Quiz

Unlock your potential! Begin the quiz, answer questions, and accumulate credits along the way.

Take A Quiz

Popular Categories

Interview Questions
QuestionBank
Quantitative Aptitude
Engineering
Govt Exams
Digital Marketing
Management
Interviews
All

Expandable Recyclerview findViewById(int) cannot be resolved

Course Queries Syllabus Queries 2 years ago

0 2 0 0 0 tuteeHUB earn credit +10 pts
5 Star Rating 1 Rating
Previous Next

Posted on 16 Aug 2022, this text provides information on Syllabus Queries related to Course Queries. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

Take Quiz To Earn Credits!

Turn Your Knowledge into Earnings.

tuteehub_quiz

Answers (2)

Post Answer
profilepic.png
manpreet Tuteehub forum best answer Best Answer 2 years ago


error findViewById(int) cannot resolve method

trying to achieve in fragment

A custom RecyclerView which allows for an expandable view to be attached to each ViewHolder

Is there a way i could click operation in expanded view

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.bignerdranch.expandablerecyclerview.Model.ParentObject;
import com.blipclap.engineering_solution.Adapter.adapter;
import com.blipclap.engineering_solution.Models.TitleChild;
import com.blipclap.engineering_solution.Models.TitleCreator;
import com.blipclap.engineering_solution.Models.TitleParent;

import java.util.ArrayList;
import java.util.List;


public class SYFragment extends Fragment {
    RecyclerView recyclerView;

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        ((adapter)recyclerView.getAdapter()).onSaveInstanceState(outState);
    }

    @Override
    public void onCreate( Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        recyclerView =(RecyclerView)findViewById(R.id.recyclerview);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));

        adapter adapter =new adapter(getActivity(),initData());
        adapter.setParentClickableViewAnimationDefaultDuration();
        adapter.setParentAndIconExpandOnClick(
                                                
                                                


                                                    

                                                        
                                                            0
                                                            views 

                                                            
                                                            

                                                            0
                                                            shares
profilepic.png
manpreet 2 years ago

findViewById is not a Fragment method so it cannot be resolved in its onCreate. You cannot do like in an Activity.

You have to use it in your onCreateView or onViewCreated methods, and you have to call it on the view you inflated.

For example:

@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    //you can set the title for your toolbar here for different fragments">fragments different titles
    getActivity().setTitle("Syllabus");

    recyclerView =(RecyclerView) view.findViewById(R.id.recyclerview);
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));

    adapter adapter =new adapter(getActivity(),initData());
    adapter.setParentClickableViewAnimationDefaultDuration();
    adapter.setParentAndIconExpandOnClick(true);

    recyclerView.setAdapter(adapter)
}

Or..

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    //returning our layout file
    //change R.layout.yourlayoutfilename for each of your fragments">fragments
    View rootView = inflater.inflate(R.layout.fragment_sy, container, false);

    recyclerView =(RecyclerView) rootView.findViewById(R.id.recyclerview);

     ...
    return rootView;
}

0 views   0 shares

No matter what stage you're at in your education or career, TuteeHub will help you reach the next level that you're aiming for. Simply,Choose a subject/topic and get started in self-paced practice sessions to improve your knowledge and scores.

Q

What is the full form of NABARD ?

Banking, Finance & Insurance
Q

How to refresh app upon shaking the device?

Mobile Technologies
Q

What are the govt exams after BCA?

Career Talk
Q

TYPO3 v8. Override function in Core class

General Tech
Q

Why do people in India give so much importance to Government jobs?

Commerce & Accounting
Q

<div>zkskKsk</div>

Mobile Technologies 0 Answers
Q

<span style="font-size: 1em;">Qwerty 4</span>

Digital Marketing 0 Answers
Q

<div>What are the key differences between AMOLED and LCD displays in smartphones?</div>

Mobile Technologies 0 Answers
Q

<div>What are the key challenges in Mobile App Development for Cross-Platform Solutions?</div>

Mobile Technologies 0 Answers
Q

who is the smallest man in the world

General Tech 0 Answers

Explore Other Libraries

Blogs Tutorials Question Bank Feeds Careernews

Tags

Expandable Recyclerview findViewById int

Important Course Queries Links

 Syllabus Queries
 Competitions/Entrance Exams