How can i add floating button in constraint layout

Question

the error said

"Resource Errors This project contains resource errors, so aapt did not succeed, which can cause rendering failures. Fix resource problems first."

How can I add floating action button in constraint layout

here is my code

<com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/fab_wishlist"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:layout_alignParentBottom="true"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:layout_marginBottom="16dp"
        android:src="@drawable/ic_heart"
        app:backgroundTint="@color/cardview_dark_background"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.972"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent />


</androidx.constraintlayout.widget.ConstraintLayout>

Answer 1

Try This!

<?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"
    tools:context=".MainActivity">


    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/floatingActionButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="10dp"
        android:layout_marginBottom="10dp"
        android:clickable="true"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:srcCompat="@drawable/abc_vector_test" />
    
</androidx.constraintlayout.widget.ConstraintLayout>