Button in android application

Represents a push-button widget. Push-buttons can be pressed, or clicked, by the user to perform an action.

java.lang.Object
↳android.view.View
  ↳ android.widget.TextView
     ↳ android.widget.Button

Activity :  OnClickListener

Public Constructors
	Button(Context context)
	Button(Context context, AttributeSet attrs)
	Button(Context context, AttributeSet attrs, int defStyle)

Example:

<Button
     android:layout_height="wrap_content"
     android:layout_width="wrap_content"
     android:text="@string/self_destruct"
     android:onClick="selfDestruct" />