open-keychain/OpenKeychain/src/main/res/layout/nfc_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:custom="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <org.sufficientlysecure.keychain.ui.widget.ToolableViewAnimator
        android:id="@+id/view_animator"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:animateLayoutChanges="true"
        android:inAnimation="@anim/fade_in"
        android:measureAllChildren="false"
        android:minHeight="?listPreferredItemHeightSmall"
        android:outAnimation="@anim/fade_out"
        android:paddingBottom="16dp"
        android:paddingLeft="24dp"
        android:paddingRight="24dp"
        android:paddingTop="16dp"
        custom:initialView="0">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/toolbar_include"
            android:layout_gravity="center"
            android:orientation="vertical">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/nfc_text"
                android:textAppearance="@android:style/TextAppearance.Medium" />

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:adjustViewBounds="true"
                android:src="@drawable/yubikey_phone"
                android:id="@+id/nfc_image"
                android:background="@android:color/transparent" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/toolbar_include"
            android:layout_gravity="center"
            android:gravity="center"
            android:orientation="vertical">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/nfc_wait"
                android:textAppearance="@android:style/TextAppearance.Medium" />

            <ProgressBar
                style="?android:attr/progressBarStyleLarge"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:padding="8dp" />

        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/toolbar_include"
            android:layout_gravity="center"
            android:gravity="center"
            android:orientation="vertical">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/nfc_finished"
                android:textAppearance="@android:style/TextAppearance.Medium" />

        </LinearLayout>

    </org.sufficientlysecure.keychain.ui.widget.ToolableViewAnimator>


</LinearLayout>