This hour took a close look at ImageViews and bitmaps, including how to handle large images, and offered a basic approach to drawing directly on a canvas. The hour covered how to use ScaleType in detail and introduced the Matrix class to show a simple rotation of an image in an ImageView. This hour also introduced video and audio concepts using VideoView and MediaPlayer. Android provides significant ability to record and play various media types. This hour showed the basics and introduced the next steps to take to make great media-based apps.