use the android:background attribute in your xml. Easiest way if you want to apply it to a whole activity is to put it in the root of your layout. So if you have a RelativeLayout as the start of your xml, put it in here: share | improve this answer.
The name Moana is of Hawaiian and Maori origin. The meaning of Moana is ocean. Moana is generally used as a girl's name. It consists of 5 letters and 2 syllables and is pronounced Moa-na.
Disney's Moana movie draws inspiration from Polynesian islands like Bora Bora, Fiji and Tetiaroa. Here is a little more background on the islands that inspired the tale.