Android clickable and focusable

Setclickable (), as if the control button can be clicked and clicked after the listener event is triggered.
Setfocusable (); controls whether the keyboard can get the focus of this button. (I press the arrow key on the physical keyboard and the button is selected)

Today want to use the method of setting background to change the background of linearlayout when clicked, found not good use, originally did not set clickable, to summarize.

<?xml version="1.0"encoding="Utf-8"? ><selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_pressed="true"android:drawable="@color/gray"/> <item android:state_pressed="false"android:drawable="@color/clear"/></selector>

To summarize, make a mark.

Android clickable and focusable