Android - Placeholder for dynamically added TextView

Question

In my application I have a inner Relativelayout with 2 Imagebuttons on the left (back button and help button), 2 Imagebuttons on the right (forward button and info button) and a Textview.

The problem is that the text is setted dynamically when the user makes the quiz. There are 2 possible texts (see the images).

As you see the text for the wrong answer is the maximum character length for this Textview. My goal is to have a fix positioning for the Imagebuttons. But I don't want to set a fix width for the Texview. I think there is a better solution.

What is the best way to achieve this?

EDIT:

This is my inner Relativelayout:

<RelativeLayout
    android:id="@+id/layout_progressbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_marginTop="20dp"
    android:layout_toEndOf="@+id/iv_image"
    android:layout_toRightOf="@+id/iv_image"
    android:gravity="bottom"
    android:orientation="horizontal" >

    <ImageButton
        android:id="@+id/bt_next"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:enabled="false"
        android:src="@drawable/ic_arrow_right"
        android:text="@string/bt_next" />

    <ImageButton
        android:id="@+id/bt_info"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toEndOf="@+id/tv_resultmessage"
        android:layout_toLeftOf="@+id/bt_next"
        android:layout_toRightOf="@+id/tv_resultmessage"
        android:layout_toStartOf="@+id/bt_next"
        android:background="@null"
        android:src="@drawable/ic_info" />

    <TextView
        android:id="@+id/tv_resultmessage"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true" />

    <ImageButton
        android:id="@+id/bt_praxis"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toEndOf="@+id/bt_back"
        android:layout_toLeftOf="@+id/tv_resultmessage"
        android:layout_toRightOf="@+id/bt_back"
        android:layout_toStartOf="@+id/tv_resultmessage"
        android:background="@null"
        android:src="@drawable/ic_praxis" />

    <ImageButton
        android:id="@+id/bt_back"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:src="@drawable/ic_arrow_left"
        android:text="@string/bt_back" />

    <ProgressBar
        android:id="@+id/pb_quiz"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/bt_back"
        android:padding="5dp"
        android:progress="1" />
</RelativeLayout>

Answer 1

Set layout_toRightOf, layout_toLeftOf to TextView. And Remove android:layout_toEndOf="@+id/tv_resultmessage" etc from ImageView.

like this:

<RelativeLayout
        android:id="@+id/layout_progressbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_marginTop="20dp"
        android:layout_toEndOf="@+id/iv_image"
        android:layout_toRightOf="@+id/iv_image"
        android:gravity="bottom"
        android:orientation="horizontal">

    <ImageButton
            android:id="@+id/bt_next"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:enabled="false"
            android:src="@drawable/ic_arrow_right"
            android:text="@string/bt_next"/>

    <ImageButton
            android:id="@+id/bt_info"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toLeftOf="@+id/bt_next"
            android:layout_toStartOf="@+id/bt_next"
            android:layout_marginRight="16dp"
            android:background="@null"
            android:src="@drawable/ic_info"/>

    <TextView
            android:id="@+id/tv_resultmessage"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@+id/bt_praxis"
            android:layout_toLeftOf="@+id/bt_info"
            android:layout_centerHorizontal="true"/>

    <ImageButton
            android:id="@+id/bt_praxis"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toEndOf="@+id/bt_back"
            android:layout_toRightOf="@+id/bt_back"
            android:layout_marginLeft="16dp"
            android:background="@null"
            android:src="@drawable/ic_praxis"/>

    <ImageButton
            android:id="@+id/bt_back"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:src="@drawable/ic_arrow_left"
            android:text="@string/bt_back"/>

    <ProgressBar
            android:id="@+id/pb_quiz"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/bt_back"
            android:padding="5dp"
            android:progress="1"/>
</RelativeLayout>