loading.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/color_0000"
    android:gravity="center"
    android:orientation="horizontal">

    <ProgressBar
        android:id="@+id/loading_progress"
        android:layout_width="@dimen/common_loading_progress_size"
        android:layout_height="@dimen/common_loading_progress_size"
        android:indeterminate="true"
        android:indeterminateOnly="false" />

    <TextView
        android:id="@+id/loading_msg"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:layout_margin="@dimen/common_loading_text_margin"
        android:ellipsize="end"
        android:lineSpacingExtra="@dimen/common_loading_text_lines_spacing"
        android:maxLines="2"
        android:text="@string/common_loading_message"
        android:textColor="@color/color_AAA"
        android:textSize="12sp" />
</LinearLayout>