How to stretch the layout to fill the screen?

Question

I have a simple layout: (it is for mail)

<ScrollView android:layout_height="0dp" android:layout_width="fill_parent" android:layout_weight="1" android:background="@color/red_start">

        <LinearLayout android:layout_height="fill_parent" android:layout_width="fill_parent" android:orientation="vertical" android:background="@color/blue_start">

            <TextView style="@style/MyTextViewLabel" android:text="From" android:layout_marginTop="5dp"/>

            <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/shape_white_rounded">
                <TextView style="@style/MyTextViewLabel.Black" android:id="@+id/tv_sender" />
            </LinearLayout>

            <TextView style="@style/MyTextViewLabel" android:text="Subject" android:layout_marginTop="5dp"/>

            <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/shape_white_rounded">
                <TextView style="@style/MyTextViewLabel.Black" android:id="@+id/tv_subject" />
            </LinearLayout>

            <TextView style="@style/MyTextViewLabel" android:text="Body" android:layout_marginTop="5dp"/>

            <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/shape_white_rounded">
                <TextView style="@style/MyTextViewLabel.Black" android:id="@+id/tv_body" />
            </LinearLayout>

        </LinearLayout>

    </ScrollView>

For some reason, LinearLayout will not populate the ScrollView as I expect. Basically, I want to make tv_body to fill the screen, and if there is more text, it should be scrollable. Now it looks like this. I added colors to illustrate that ScrollView is stretched, but LinearLayout does not.

Answer 1

Try to add

android:fillViewport="true"

in your ScrollView.

Check out this for more explanation: http://www.curious-creature.org/2010/08/15/scrollviews-handy-trick/

Answer 2

, android:layout_height="0dp" ScrollView android:layout_height="match_parent"?