Adapter not found skipped in fragment with navigation drawer and appbar

问题

I make a fragment in which I attach a recycler view with dummy data but when I include this fragment in my slide up a panel which is in the main activity so the main activity slider data show but in fragment data it says recyclerview adapter not found it's skipped. kindly tell me what is an issue

Main activity with Slidepanel layout.xml

<com.sothree.slidinguppanel.SlidingUpPanelLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:sothree="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/slider_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="bottom"
sothree:umanoPanelHeight="68dp"
sothree:umanoShadowHeight="4dp"
tools:context=".sliderFragment">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <include
        android:id="@+id/slider_main"
        layout="@layout/fragment_slider"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <androidx.appcompat.widget.Toolbar
        android:id="@+id/slideToolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        sothree:titleTextColor="@color/colorWhite" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/slider_recycle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        tools:listitem="@layout/review_design" />
</LinearLayout>
</com.sothree.slidinguppanel.SlidingUpPanelLayout>

MainActivity.java

public class MainActivity extends AppCompatActivity {
Toolbar toolbar;
reviewAdapt adaptView;
SlidingUpPanelLayout slidingUpPanelLayout;
RecyclerView recyclerOverView;



@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    findview();
}


private void findview() {
    recyclerOverView = findViewById(R.id.slider_recycle);
    toolbar = findViewById(R.id.slideToolbar);
    slidingUpPanelLayout = findViewById(R.id.slider_drawer);
    populateList();
    list();
}

private void list() {
    slidingUpPanelLayout.addPanelSlideListener(new SlidingUpPanelLayout.PanelSlideListener() {
        @Override
        public void onPanelSlide(View panel, float slideOffset) {
            Log.i(TAG, "onPanelSlide, offset " + slideOffset);
        }

        @Override
        public void onPanelStateChanged(View panel, SlidingUpPanelLayout.PanelState previousState, SlidingUpPanelLayout.PanelState newState) {
            Log.i(TAG, "onPanelStateChanged " + newState);

        }
    });
    slidingUpPanelLayout.setFadeOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {


            slidingUpPanelLayout.setPanelState(SlidingUpPanelLayout.PanelState.EXPANDED);
        }

    });
}

private void populateList() {

    List<reviewModel> reviewModelList = new ArrayList<>();

    for (int i = 1; i < 20; i++) {
        int imges = R.drawable.ic_userlogin;
        String names = " Name is " + i;
        String dates = " Dates is " + i;
        String detail = " details about is " + i;

        reviewModel models = new reviewModel(names, dates, detail, 4, imges);

        reviewModelList.add(models);
    }

    setupRecycle(reviewModelList);
}

private void setupRecycle(List<reviewModel> reviewModelList) {

    adaptView = new reviewAdapt(this, reviewModelList, reviewModelList.size());
    LinearLayoutManager layout = new LinearLayoutManager(this);
    layout.setSmoothScrollbarEnabled(true);
    recyclerOverView.setLayoutManager(layout);
    recyclerOverView.setHasFixedSize(true);
    recyclerOverView.setAdapter(adaptView);
    Log.d("adpater","show");

}}

SliderFragment.xml

  <androidx.drawerlayout.widget.DrawerLayout 
  xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:id="@+id/salon_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">

<androidx.constraintlayout.widget.ConstraintLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <androidx.appcompat.widget.Toolbar
        android:id="@+id/salonToolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorGrey"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:titleTextColor="@color/colorWhite" />

    <com.google.android.material.tabs.TabLayout
        android:id="@+id/salon_tabLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorGrey"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/salonToolbar" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerList"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/salon_tabLayout"
        tools:listitem="@layout/review_design" />
  </androidx.constraintlayout.widget.ConstraintLayout>

  <com.google.android.material.floatingactionbutton.FloatingActionButton
    android:id="@+id/call_fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="top|end"
    android:paddingBottom="@dimen/_16sdp"
    android:src="@drawable/ic_call"
    android:tint="@color/colorBlack"
    android:translationY="-8dp"
    app:backgroundTint="@color/colorOrange"
    app:layout_anchor="@id/msg_fab"
    app:layout_anchorGravity="top" />


  <com.google.android.material.floatingactionbutton.FloatingActionButton
    android:id="@+id/msg_fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="top|end"
    android:layout_margin="@dimen/_8sdp"
    android:layout_marginBottom="@dimen/_16sdp"
    android:src="@drawable/ic_message"
    android:tint="@color/colorBlack"
    android:translationY="-8dp"
    app:backgroundTint="@color/colorOrange"
    app:layout_anchor="@id/extend_fab"
    app:layout_anchorGravity="top" />

 <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
    android:id="@+id/extend_fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="end|bottom"
    android:layout_margin="@dimen/_8sdp"
    android:text="@string/extended"
    app:backgroundTint="@color/colorOrange"
    app:cornerRadius="@dimen/_30sdp"
    app:icon="@drawable/ic_add"
    app:iconGravity="start" />
 </androidx.coordinatorlayout.widget.CoordinatorLayout>
<com.google.android.material.navigation.NavigationView
     android:id="@+id/salonNavigation"
   android:layout_width="wrap_content"
   android:layout_height="match_parent"
  android:layout_gravity="start"
   app:headerLayout="@layout/header_salon"
  app:menu="@menu/salon_menu" />
</androidx.drawerlayout.widget.DrawerLayout>

SlideFragment.java

  public class sliderFragment extends Fragment {

  reviewAdapt adaptOverView;
  RecyclerView recyclerOverView;
  Toolbar toolbar;
  Fragment slider;
  TabLayout tabLayout;
  ActionBarDrawerToggle toggle;
  DrawerLayout drawer;
  boolean isClick=false;
  NavigationView navigationView;
  FloatingActionButton msgFab, callFab;
  ExtendedFloatingActionButton exFab;


public sliderFragment() {
    // Required empty public constructor
}


 public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    return inflater.inflate(R.layout.fragment_slider, container, false);
 }

@Override
 public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    findview(view);
}

 private void findview(View view) {
    toolbar = view.findViewById(R.id.salonToolbar);
    tabLayout = view.findViewById(R.id.salon_tabLayout);
    drawer = view.findViewById(R.id.salon_drawer);
    msgFab = view.findViewById(R.id.msg_fab);
    callFab = view.findViewById(R.id.call_fab);
    exFab = view.findViewById(R.id.extend_fab);
    recyclerOverView = view.findViewById(R.id.recyclerList);
    navigationView = view.findViewById(R.id.salonNavigation);
    ((AppCompatActivity) getActivity()).setSupportActionBar(toolbar);
    showToggle();
    populateList();
    fabExtension();
  }

  private void fabExtension() {
    exFab.shrink();
    msgFab.hide();
    callFab.hide();
    exFab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (isClick) {
                msgFab.setVisibility(View.GONE);
                callFab.setVisibility(View.GONE);
                isClick = false;

            } else {
                msgFab.setVisibility(View.VISIBLE);
                callFab.setVisibility(View.VISIBLE);
                isClick = true;
            }
        }
    });
  }

  private void showToggle() {
    toggle = new ActionBarDrawerToggle(getActivity(), drawer, toolbar, R.string.open, 
     R.string.close);
    drawer.addDrawerListener(toggle);
    toggle.syncState();
    toggle.getDrawerArrowDrawable().setColor(getResources().getColor(R.color.colorWhite));
    navigationView.setNavigationItemSelectedListener(new 
    NavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
            switch (item.getItemId()) {
                case R.id.about_salon:
                    Toast.makeText(getContext(), "About Item Click", Toast.LENGTH_SHORT).show();
                    drawer.closeDrawer(GravityCompat.START);
                    break;
                case R.id.home_salon:
                    Toast.makeText(getContext(), "Home Item Click", Toast.LENGTH_SHORT).show();
                    drawer.closeDrawer(GravityCompat.START);
                    break;
                case R.id.details_salon:
                    Toast.makeText(getContext(), "Details Item Click", Toast.LENGTH_SHORT).show();
                    drawer.closeDrawer(GravityCompat.START);
                    break;
                case R.id.setting_salon:
                    Toast.makeText(getContext(), "Setting Item Click", Toast.LENGTH_SHORT).show();
                    drawer.closeDrawer(GravityCompat.START);
                    break;
                default:
                    break;
            }
            return false;
        }
    });
  }

  private void populateList() {

    List<reviewModel> reviewList = new ArrayList<>();

    for (int i = 1; i < 20; i++) {
        int imges = R.drawable.ic_userlogin;
        String names = "User Name is " + i;
        String dates = "New Dates is " + i;
        String detail = "User details about is " + i;

        reviewModel models = new reviewModel(names, dates, detail, 4, imges);

        reviewList.add(models);
    }

    setupRecycle(reviewList);
 }

  private void setupRecycle(List<reviewModel> reviewList) {

    adaptOverView = new reviewAdapt(getContext(), reviewList, reviewList.size());
    LinearLayoutManager layout = new LinearLayoutManager(getContext());
    layout.setSmoothScrollbarEnabled(true);
    recyclerOverView.setLayoutManager(layout);
    recyclerOverView.setHasFixedSize(true);
    recyclerOverView.setAdapter(adaptOverView);

    recyclerOverView.addOnScrollListener(new RecyclerView.OnScrollListener() {
        @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
            if (dy < 0)
                exFab.shrink();
            else if (dy > 0)
                exFab.extend();
        }

        @Override
        public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
            super.onScrollStateChanged(recyclerView, newState);
        }
    });
    }}

来源：https://stackoverflow.com/questions/64259818/adapter-not-found-skipped-in-fragment-with-navigation-drawer-and-appbar