What is "edittext"

A Edittext is an overlap on the TextView configured to be editable. Basically a predefined subclass of TextView which includes editing features, being a component widget for Android development that simulates a text box.

An example of how it can be used:

<EditText
  android:id="@+id/edittext"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content" />