What is Android?

Android is an open-source, Linux-based operating system used in mobiles, tablets, televisions, etc.

What is the implicit intent in android?

The Implicit intent is used to invoke the system components.

An adapter is used to create a child view to present the parent view items.

Andy Rubin.

An explicit intent is used to invoke the activity class.

We can change bitmap images into nine sections with four corners, four edges, and an axis.

Activity is like a frame or window in java that represents GUI. It represents one screen of android.

Intent i = new Intent(getApplicationContext(), ActivityTwo.class); startActivity(i);

Android is a customized Linux 3.6 kernel.

There are 7 life-cycle methods of activity. They are as follows: onCreate() onStart() onResume() onPause() onStop() onRestart() onDestroy()