I have the following XML -
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintLeft_toRightOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/activity_checkout_top_view">
<LinearLayout
android:id="@+id/activity_checkout_checkout_stages_viewgroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="100dp"
android:animateLayoutChanges="true"
android:background="@color/white"
android:orientation="vertical">
<FrameLayout
android:id="@+id/activity_checkout_discount_container"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:layout_marginEnd="@dimen/marketplace_14dp"
android:text="@string/activity_checkout_checkout"
android:textSize="22sp"
android:textStyle="bold" />
<LinearLayout
android:id="@+id/activity_checkout_first_stage_viewgroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:orientation="horizontal">
<TextView
android:id="@+id/activity_checkout_first_stage_textview"
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:background="@color/color_black"
android:gravity="center"
android:text="@string/activity_checkout_1"
android:textColor="@color/white"
android:textStyle="bold" />
<TextView
android:id="@+id/activity_checkout_billing_address_textview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginStart="@dimen/marketplace_14dp"
android:text="@string/activity_checkout_billing_address"
android:textColor="@color/color_black"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
<View
android:id="@+id/billing_shipping__address_layout_bottom_view"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:layout_marginEnd="@dimen/marketplace_14dp"
android:background="@color/activity_checkout_stages_line" />
<!-- Billing layout -->
<include
android:id="@+id/checkout_activity_billing_address_layout_include"
layout="@layout/fragment_checkout_billing_shipping"
android:visibility="gone" />
<FrameLayout
android:id="@+id/activity_checkout_billing_address_container"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<LinearLayout
android:id="@+id/activity_checkout_second_stage_viewgroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:orientation="horizontal">
<TextView
android:id="@+id/activity_checkout_second_stage_textview"
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:background="@color/activity_checkout_unselected_checkout_stage_color"
android:gravity="center"
android:text="@string/activity_checkout_2"
android:textColor="@color/color_black" />
<TextView
android:id="@+id/activity_checkout_shipping_address_textview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginStart="@dimen/marketplace_14dp"
android:text="@string/activity_checkout_shipping_address"
android:textColor="@color/activity_checkout_unselected_checkout_stage_color"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
<View
android:id="@+id/activity_checkout_shipping_view"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:layout_marginEnd="@dimen/marketplace_14dp"
android:background="@color/activity_checkout_stages_line" />
<!-- Shipping layout -->
<include
android:id="@+id/activity_checkout_shipping_address_layout_include"
layout="@layout/fragment_checkout_billing_shipping"
android:visibility="gone" />
<FrameLayout
android:id="@+id/activity_checkout_shipping_address_container"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<LinearLayout
android:id="@+id/activity_checkout_third_stage_viewgroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:orientation="horizontal">
<TextView
android:id="@+id/activity_checkout_third_stage_textview"
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:background="@color/activity_checkout_unselected_checkout_stage_color"
android:gravity="center"
android:text="@string/activity_checkout_3"
android:textColor="@color/color_black" />
<TextView
android:id="@+id/activity_checkout_shipping_method_textview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginStart="@dimen/marketplace_14dp"
android:text="@string/activity_checkout_shipping_method"
android:textColor="@color/activity_checkout_unselected_checkout_stage_color"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
<View
android:id="@+id/activity_checkout_payment_method_view"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:layout_marginEnd="@dimen/marketplace_14dp"
android:background="@color/activity_checkout_stages_line" />
<FrameLayout
android:id="@+id/activity_checkout_shipping_method_container"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<LinearLayout
android:id="@+id/activity_checkout_forth_stage_viewgroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:orientation="horizontal">
<TextView
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:background="@color/activity_checkout_unselected_checkout_stage_color"
android:gravity="center"
android:text="@string/activity_checkout_4"
android:textColor="@color/color_black" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginStart="@dimen/marketplace_14dp"
android:text="@string/activity_checkout_payment_method"
android:textColor="@color/activity_checkout_unselected_checkout_stage_color"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
<View
android:id="@+id/activity_checkout_payment_information_view"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:layout_marginEnd="@dimen/marketplace_14dp"
android:background="@color/activity_checkout_stages_line" />
<LinearLayout
android:id="@+id/activity_checkout_fifth_stage_viewgroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:orientation="horizontal">
<TextView
android:id="@+id/activity_checkout_fifth_stage"
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:background="@color/activity_checkout_unselected_checkout_stage_color"
android:gravity="center"
android:text="@string/activity_checkout_5"
android:textColor="@color/color_black" />
<TextView
android:id="@+id/activity_checkout_payment_information"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginStart="@dimen/marketplace_14dp"
android:text="@string/activity_checkout_payment_information"
android:textColor="@color/activity_checkout_unselected_checkout_stage_color"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
<View
android:id="@+id/activity_checkout_confirm_order_view"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:layout_marginEnd="@dimen/marketplace_14dp"
android:background="@color/activity_checkout_stages_line" />
<FrameLayout
android:id="@+id/activity_checkout_payment_information_container"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<LinearLayout
android:id="@+id/activity_checkout_sixth_stage_viewgroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:orientation="horizontal">
<TextView
android:id="@+id/activity_checkout_sixth_stage"
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:background="@color/activity_checkout_unselected_checkout_stage_color"
android:gravity="center"
android:text="@string/activity_checkout__6"
android:textColor="@color/color_black" />
<TextView
android:id="@+id/activity_checkout_confirm_information_textview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginStart="@dimen/marketplace_14dp"
android:text="@string/activity_checkout_confirm_information"
android:textColor="@color/activity_checkout_unselected_checkout_stage_color"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
<View
android:id="@+id/activity_checkout_confirm_information_view"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginStart="@dimen/marketplace_14dp"
android:layout_marginTop="@dimen/marketplace_15dp"
android:layout_marginEnd="@dimen/marketplace_14dp"
android:background="@color/activity_checkout_stages_line" />
<FrameLayout
android:id="@+id/activity_checkout_confirm_information_container"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</androidx.core.widget.NestedScrollView>
Which looks like this - (This is not the entire XML as shown in the picture, but only the one relevant to the question)
The way it works is that for every FrameLayout you see in the XML I inflate another Fragment inside it, in turns for each stage respectively.
Inside each fragment, when I need to dismiss that fragment from the UI, I call the following code -
activity?.onBackPressed()
Which dismisses the relevant Fragment and after that I pop a new one.
The problem I am currently facing is the ability to close the fragment with a single back press, which is bad for the UI. I could easily dismiss the onBackPressed() ability, but than how would I be able to tell each fragment to dismiss itself?
I need a way to block the fragment from reacting to backpress but still have the ability to remove itself from the backstack.
