View.java

public class WatchfaceView extends WatchfaceEngine { // Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class com.liner.linerlauncher.watchface.WatchfaceView
    public WatchfaceView(Context context) {
        this(context, null, 0);
    }

    public WatchfaceView(Context context, @Nullable AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public WatchfaceView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }
}

public abstract class WatchfaceEngine extends View {
    public WatchfaceEngine(Context context) {
        this(context, null, 0);
    }

    public WatchfaceEngine(Context context, @Nullable AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public WatchfaceEngine(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }
}

View.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.liner.linerlauncher.watchface.WatchfaceView
        android:id="@+id/watchfaceView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
    
</androidx.constraintlayout.widget.ConstraintLayout>