Android add other layout in ConstraintLayout using include tag

Solution 1:

Android include tag does work with ConstraintLayout, but you need to declare how big is the layout you want to include with the following attributes.

<include
     layout="@layout/content_main"
     android:layout_width="100dp"
     android:layout_height="250dp"
     .../>

For included layout having dynamic height use wrap_content as a value in layout_height or layout_width attributes of include tag.

<include
    android:id="@+id/input_include"
    layout="@layout/task_input"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"/>

After that, your constraints should work.

Solution 2:

In the constrain layout define the height and width and your constraints as follows:

<include
    app:layout_constraintTop_toBottomOf="@id/custom_members_toolbar_layout"
    app:layout_constraintBottom_toTopOf="@id/file_xfer_bottom_nav_bar"
    android:layout_height="0dp"
    android:layout_width="match_parent"
    layout="@layout/file_xfer_upload_layout"/>

This will auto resize the height based on your constraints.

Cheers!