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

<?xml version="1.0" encoding="utf-8"?>
<org.sufficientlysecure.keychain.ui.widget.ToolableViewAnimator
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:custom="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:visibility="gone"
        android:id="@+id/decrypt_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        tools:visibility="visible">

        <ScrollView
            android:fillViewport="true"
            android:paddingTop="8dp"
            android:layout_width="match_parent"
            android:scrollbars="vertical"
            android:layout_height="0dp"
            android:layout_weight="1">

            <TextView
                android:id="@+id/decrypt_text_plaintext"
                android:paddingLeft="16dp"
                android:paddingRight="16dp"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="top"
                android:hint=""
                tools:text="This is the plaintext"
                android:textIsSelectable="true" />

        </ScrollView>

    </LinearLayout>

    <LinearLayout
        android:id="@+id/decrypt_error_overlay"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:gravity="center_vertical"
        android:visibility="gone">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="@string/decrypt_invalid_text"
            android:padding="16dp"
            android:layout_gravity="center"
            android:textColor="@color/android_red_light" />

        <Button
            android:id="@+id/decrypt_error_overlay_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/button_edgy"
            android:textColor="@color/android_red_light"
            android:text="@string/decrypt_invalid_button"
            android:layout_gravity="center_horizontal" />
    </LinearLayout>

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