What is Activity and Activity LifeCycle in Android

Activity in android is for GUI . If user want to use Textview, button , edit text and other ui component in android app then user has to use activity . Activity represents user  interface . Activity LifeCycle : Following is the flow of activity . OnCreate OnStart OnResume OnPause OnStop OnDestroy OnCreate : This is the first method call when the system create activity . In this method , we...

Basic Building Blocks of Android

Building Blocks in Android are : Activities Services&nb...

Background Image Size in Android

Background Image Size : Background image size for image is different for a different resolution . If a have hdpi screen, the size of image is different for a mdpi screen , xxhdpi screen a...

Icon Size in Android

For  Launcher icons : 48 × 48 (mdpi) 72 × 72 (hdpi) 96 × 96 (xhdp...

Whats New in Android N

Features : Constraint Layout : Its an Unbundled Library which we can integrate in our app without updating or upgrading android framework ....