activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:orientation="vertical"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.putuguna.imageprocessing.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello Picasso!" />

    <RelativeLayout
        android:layout_gravity="center"
        android:gravity="center"
        android:layout_weight="1"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/imageview_picasso"/>
        <ProgressBar
            android:id="@+id/progress_picasso"
            android:visibility="visible"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </RelativeLayout>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello Glide!" />
    <RelativeLayout
        android:layout_gravity="center"
        android:gravity="center"
        android:layout_weight="1"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/imageview_glide"/>
        <ProgressBar
            android:id="@+id/progress"
            android:visibility="visible"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </RelativeLayout>


</LinearLayout>