Spent time: 21 hours

• User can scroll through current popular photos from Instagram
• For each photo displayed, user can see the following details:
• Graphic, Caption, Username
• (Optional) relative timestamp, like count, user profile image
• The following advanced user stories are optional but recommended:
• Advanced: Add pull-to-refresh for popular stream with SwipeRefreshLayout
• Advanced: Show latest comment for each photo (bonus: show last 2 comments)
• Advanced: Display each user profile image using a RoundedImageView
• Advanced: Display a nice default placeholder graphic for each image during loading (read more about Picasso)
• Advanced: Improve the user interface through styling and coloring
• Bonus: Allow user to view all comments for an image within a separate activity or dialog fragment