<com.google.android.material.textfield.TextInputLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:passwordToggleEnabled="true">

    <androidx.appcompat.widget.AppCompatEditText
        android:id="@+id/otp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter otp"
        android:inputType="number"
        android:maxLines="1" />

</com.google.android.material.textfield.TextInputLayout>

How to set hide/masked icon as default value of toggle button in edittext