Error :Binary XML file line : Inflating class fragment

Question

I have an activity MainActivity in which I have and fragment signup_fragment I want to call fragment from an activity but it gives an exception of Binary XML file line #23: Binary XML file line #23: Error inflating class fragment

and Caused by: java.lang.RuntimeException: com.example.pickingredients.MainActivity@d9ff1e7 must implement OnFragmentInteractionListener

Below are my code

MainActivity

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val fragment=Signup()
            supportFragmentManager.beginTransaction().add(R.id.sigup_fragment,fragment).commit()

    }

SignupFragment

class Signup : Fragment() {
    // TODO: Rename and change types of parameters
    private var param1: String? = null
    private var param2: String? = null
    private var listener: OnFragmentInteractionListener? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        arguments?.let {
            param1 = it.getString(ARG_PARAM1)
            param2 = it.getString(ARG_PARAM2)
        }
    }

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_signup, container, false)
    }

    // TODO: Rename method, update argument and hook method into UI event
    fun onButtonPressed(uri: Uri) {
        listener?.onFragmentInteraction(uri)
    }

    override fun onAttach(context: Context) {
        super.onAttach(context)
        if (context is OnFragmentInteractionListener) {
            listener = context
        } else {
            throw RuntimeException(context.toString() + " must implement OnFragmentInteractionListener")
        }
    }

    override fun onDetach() {
        super.onDetach()
        listener = null
    } }

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity"
        android:background="@color/light_grey">

    <TextView
            android:text="@string/what_is_your_mood"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" android:id="@+id/mood_tv"
            app:layout_constraintStart_toStartOf="parent" android:layout_marginStart="8dp"
            app:layout_constraintEnd_toEndOf="parent" android:layout_marginEnd="8dp"
            app:layout_constraintHorizontal_bias="0.03"
            android:layout_marginTop="16dp" app:layout_constraintTop_toTopOf="parent"
            android:textSize="18sp"/>
    <androidx.constraintlayout.widget.Guideline android:layout_width="wrap_content" android:layout_height="wrap_content"
                                                android:id="@+id/guideline" app:layout_constraintGuide_begin="16dp"
                                                android:orientation="vertical"/>
    <fragment
            android:layout_width="362dp"
            android:layout_height="98dp" android:name="com.example.pickingredients.ImagesliderFragment"
            android:id="@+id/sigup_fragment" app:layout_constraintEnd_toEndOf="parent"
            android:layout_marginEnd="8dp" app:layout_constraintStart_toStartOf="@+id/guideline"
            android:layout_marginStart="8dp" app:layout_constraintTop_toBottomOf="@+id/mood_tv"
            android:layout_marginTop="16dp"/>

</androidx.constraintlayout.widget.ConstraintLayout>

fragment_signup.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
             xmlns:tools="http://schemas.android.com/tools"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             tools:context=".Signup">

<TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="@string/hello_blank_fragment"/>

</FrameLayout>

Answer 1

Problem is here com.example.pickingredients.ImagesliderFragment. Either this fragment not found or having issues on that fragment.

And you should use FrameLayout instead of Fragment in xml.

Moreover your MainActivity should implement OnFragmentInteractionListener