[移动开发]Android LinearLayout 焦点背景颜色

安卓电视上 Layout 焦点没有颜色，不知道在哪，全靠猜。

Android LinearLayout 点击背景颜色改变_weixin_33737134的博客-CSDN博客

1.布局

<LinearLayout
    android:id="@+id/linearLayout_video"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_rowWeight="1"
    android:layout_columnWeight="1"
    android:clickable="true"
    android:focusable="true"
    android:onClick="onClick"
    android:background="@drawable/linearlayout_background">
    ......
</LinearLayout>

2.Drawable

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true" android:drawable="@color/colorFocus" />
    <item android:state_pressed="true" android:drawable="@color/colorPress" />
    <item android:drawable="@color/colorNormal" />
</selector>

3.Color

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorNormal">#FFF</color>
    <color name="colorFocus">#DDD</color>
    <color name="colorPress">#EEE</color>
</resources>

?

焦点背景有了，点击背景还是没有。