Make this button work inside the fragment?

The button "b" in the fragment won't do a thing.

The logcat just shows

" the up motion event handled by client, just return"

I have seen many post about this problem but nothing worked for me.

activity main(named root):

package com.nio.myapplication2; import android.content.Intent; import android.os.Bundle; import android.widget.Button; import androidx.appcompat.app.AppCompatActivity; import androidx.navigation.NavController; import androidx.navigation.Navigation; import androidx.navigation.ui.AppBarConfiguration; import androidx.navigation.ui.NavigationUI; import com.nio.myapplication2.databinding.ActivityMainBinding; import java.util.Objects; public class Root extends AppCompatActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); com.nio.myapplication2.databinding.ActivityMainBinding binding = ActivityMainBinding.inflate(getLayoutInflater()); setContentView(binding.getRoot()); Objects.requireNonNull(getSupportActionBar()).setDisplayHomeAsUpEnabled(true); AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder( R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_notifications) .build(); NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_activity_main); NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration); NavigationUI.setupWithNavController(binding.navView, navController); } }

Fragment where I'm working:

package com.nio.myapplication2; import android.content.Intent; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import androidx.appcompat.app.AppCompatActivity; public class frag1passh extends AppCompatActivity { public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view7 = inflater.inflate(R.layout.fragment_home, container, false); Button b = findViewById(R.id.button_N); b.setOnClickListener(view1 -> { Intent intent = new Intent(frag1passh.this, frag1derivato.class); startActivity(intent); }); return view7; }}

Activity which the button is supposed to open:

package com.nio.myapplication2; import android.os.Bundle; import android.widget.Button; import androidx.appcompat.app.AppCompatActivity; public class frag1derivato extends AppCompatActivity { protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.newpassword); Button close = findViewById(R.id.mannagia); close.setOnClickListener(v -> finish()); } }

Fragment's XML

<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent" android:layout_height="match_parent" > <TextView android:id="@+id/text_home" android:layout_width="100dp" android:layout_height="wrap_content" android:layout_marginStart="8dp" android:layout_marginTop="8dp" android:layout_marginEnd="8dp" android:textAlignment="center" android:textSize="20sp" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.545" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.597" /> <Button android:id="@+id/button_N" android:layout_width="60dp" android:layout_height="60dp" android:text=">" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.828" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.839" /> <com.google.android.material.textfield.TextInputEditText android:layout_width="72dp" android:layout_height="54dp" android:background="@drawable/border" android:hint="hint" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintHorizontal_bias="0.176" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:layout_constraintVertical_bias="0.236" /> </androidx.constraintlayout.widget.ConstraintLayout>

activity main (named root) xml

<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingTop="?attr/actionBarSize"> <com.google.android.material.bottomnavigation.BottomNavigationView android:id="@+id/nav_view" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginStart="0dp" android:layout_marginEnd="0dp" android:background="?android:attr/windowBackground" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:menu="@menu/bottom1_nav_menu" /> <fragment android:id="@+id/nav_host_fragment_activity_main" android:name="androidx.navigation.fragment.NavHostFragment" android:layout_width="match_parent" android:layout_height="match_parent" app:defaultNavHost="true" app:layout_constraintBottom_toTopOf="@id/nav_view" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constraintTop_toTopOf="parent" app:navGraph="@navigation/mobile_navigation" /> </androidx.constraintlayout.widget.ConstraintLayout>