DataBinding variable issue

[QumberAbbas]

I have layout (id: actionBar) included for action bar in xml file name, and I have edit text name title. When the fragment is resumed the action bar title value is changed to title value of editext.

<com.google.android.material.textfield.TextInputLayout
android:id="@+id/titleLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="@dimen/standard_margin"
android:hint="@string/title"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/containerAddItem">

            <com.google.android.material.textfield.TextInputEditText
                android:id="@+id/title"
                style="@style/Theme_EditText"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:fontFamily="@font/futuramedium"
                android:singleLine="true"
                android:textColor="@color/black"
                android:textSize="@dimen/text_size_16" />
        </com.google.android.material.textfield.TextInputLayout>

Action bar layout