A simple fake VuMeter (or equalizer) for Android.
Asynchronous operations in Android are very hard to get right due to the Activity lifecycle. AsyncTasks don't handle any of it making them difficult to use. Loaders handle many things for you, but have a clunky api and fall down anytime you want to do anything more complex than loading data immediately when the Activity or Fragment is shown.
This library builds upon rxjava to handle all these things for you with an easy-to-use api.
It makes a preview from an URL, grabbing all information (such as title, relevant texts and images).