res/layout/activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <TextView android:text="@string/hello_world" android:layout_width="wrap_content"
        android:id="@+id/textView"
        android:layout_height="wrap_content" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="New Button"
        android:id="@+id/button"
        android:layout_below="@+id/textView"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Large Text"
        android:id="@+id/scan_format"
        android:layout_below="@+id/button"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Large Text"
        android:id="@+id/scan_content"
        android:layout_below="@+id/scan_format"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

</RelativeLayout>
1	<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
2	xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
3	android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
4	android:paddingRight="@dimen/activity_horizontal_margin"
5	android:paddingTop="@dimen/activity_vertical_margin"
6	android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
7
8	<TextView android:text="@string/hello_world" android:layout_width="wrap_content"
9	android:id="@+id/textView"
10	android:layout_height="wrap_content" />
11
12	<Button
13	android:layout_width="wrap_content"
14	android:layout_height="wrap_content"
15	android:text="New Button"
16	android:id="@+id/button"
17	android:layout_below="@+id/textView"
18	android:layout_alignParentLeft="true"
19	android:layout_alignParentStart="true" />
20
21	<TextView
22	android:layout_width="wrap_content"
23	android:layout_height="wrap_content"
24	android:textAppearance="?android:attr/textAppearanceLarge"
25	android:text="Large Text"
26	android:id="@+id/scan_format"
27	android:layout_below="@+id/button"
28	android:layout_alignParentLeft="true"
29	android:layout_alignParentStart="true" />
30
31	<TextView
32	android:layout_width="wrap_content"
33	android:layout_height="wrap_content"
34	android:textAppearance="?android:attr/textAppearanceLarge"
35	android:text="Large Text"
36	android:id="@+id/scan_content"
37	android:layout_below="@+id/scan_format"
38	android:layout_alignParentLeft="true"
39	android:layout_alignParentStart="true" />
40
41	</RelativeLayout>