We love the React Native community and its developer's prolificity but not as much as we love the work and Components they release.
Among the most actives we often covered Joel Arvidsson, and we're happy to do it again with his newly released Component.

react-native-image-progress on GitHub

Progress indicator for networked images in React Native

NOTE: This module requires React Native 0.8+

var Image = require("react-native-image-progress");
<Image
  source={{ uri: "http://loremflickr.com/640/480/dog" }}
  indicator="bar"
  style={{
    width: 320,
    height: 240,
  }}
/>;