If you have a background in JAVA and can edit a little XML file then you can begin your apps.
Sorry but you see a lot of spammers trying to sell you a pile of dung where it's much simpler than you can imagine. There are plenty of examples at Techrepublic and other sites to consider most pay course sites.
I am a newbie here so it would be great to receive any of your help. I want to learn about Android development. I am kind busy with a full-time job so I figure out I just can only do an online course. Does anyone have recommendation for Android Apps Development online course? Please share your experience. Your help is highly appreciated! Thanks a lot!!!!!