Android Tutorial: Understanding Activities & Their Callbacks 📱

Android Tutorial: what is an Activity,How can we create an Activity ,What are the different CallBacks or Overrided Methods of an activity,How these CallBacks or methods manage the behavior of App/Activity. What is Toast,How we can display a Toast/Short message on screen etc. <br />http://goo.gl/UF8aa1 <br /> <br />Youtube Url: http://goo.gl/BipUYA <br /> <br />Our Channel:http://goo.gl/Hj5Y0K <br /> <br />Google Plus:http://goo.gl/miWWmV <br /> <br />Facebook:http://goo.gl/iielDJ <br /> <br />Twitter:http://goo.gl/0kyzKS <br /> <br />Dailymotion:http://goo.gl/K6Z2uJ <br /> <br />Our App:http://goo.gl/o2B83B <br /> <br />Website: http://goo.gl/pbyiob