TextView的高度与RelativeLayout相同

Question

I've a RelativeLayout (1) and in this Layout is a TextView and another RelativeLayout (2). The RelativeLayout (2) has a dynamic height and I want the TextView should has the same height as the RelativeLayout (2). Is this with XML possible?

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/layout1">

    <TextView
        android:id="@+id/textView1"
        android:layout_width="40dp"
        android:layout_height="match_parent"
        android:text="Some Text..."/>

    <RelativeLayout
        android:id="@+id/layout2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

    ...

    </RelativeLayout>
</RelativeLayout>

I tried with android:layout_height="match_parent" and android:layout_height="wrap_content" but unfortunately it doesn't work.

Answer 1

First change the parent layout from RelativeLayout to LinearLayout then set its orientation attribute to vertical

Next add layout_weight with the value of 1 to both children: TextView and inner RelativeLayout

    android:layout_weight="1"

If the above is not what you expect but a dynamic change on textview in reference to a change in height of the relative layout, I would say technically that is not possible with XML. You would have to write some codes to handle change events and update the view height when necessary.