android LinearLayout等view如何获取button效果
我们可以给LinearLayout以及一切继承自View的控件，设置View.onClickListener监听，例如LInearLayout。
但是我们发现LinearLayout可以执行监听方法体，但是没有点击效果。
所谓的点击效果就是当我们用鼠标点击控件时，可以高亮或者动一下，给用户一个操作反馈。
如何给LinearLayout实现上述效果那，最简单的就是给LinearLayout配置上以下属性
style="?android:attr/actionButtonStyle" style="?android:attr/actionButtonStyle"
那么我们的按钮就具有了Button的样式效果。点击等操作和Button一样。
另外：我们也可以配置一个文件，在文件内配置上点击时图片效果，按下时图片效果等，例如：
?<selector xmlns:android="http://schemas.android.com/apk/res/android" |~
android:exitFadeDuration="@android:integer/config_mediumAnimTime"> |~
|~
<!-- Even though these two point to the same resource, have two states so the drawable will invalidate itself when coming out of |~
pressed state. --> |~
<item android:state_focused="true" android:state_enabled="false" android:state_pressed="true" android:drawable="@drawable/ |~
list_selector_disabled_holo_dark" /> |~
<item android:state_focused="true" android:state_enabled="false" android:drawable="@drawable/ |~
list_selector_disabled_holo_dark" /> |~
<item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/ |~
list_selector_background_transition_holo_dark" /> |~
<item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/ |~
list_selector_background_transition_holo_dark" /> |~
<item android:state_focused="true" android:drawable="@drawable/ |~
list_focused_holo" /> |~
<item android:drawable="@color/transparent" /|~
> |~
</selector>
<selector xmlns:android="http://schemas.android.com/apk/res/android" |~
android:exitFadeDuration="@android:integer/config_mediumAnimTime"> |~
|~
<!-- Even though these two point to the same resource, have two states so the drawable will invalidate itself when coming out of |~
pressed state. --> |~
<item android:state_focused="true" android:state_enabled="false" android:state_pressed="true" android:drawable="@drawable/ |~
list_selector_disabled_holo_dark" /> |~
<item android:state_focused="true" android:state_enabled="false" android:drawable="@drawable/ |~
list_selector_disabled_holo_dark" /> |~
<item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/ |~
list_selector_background_transition_holo_dark" /> |~
<item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/ |~
list_selector_background_transition_holo_dark" /> |~
<item android:state_focused="true" android:drawable="@drawable/ |~
list_focused_holo" /> |~
<item android:drawable="@color/transparent" /|~
> |~
</selector>
补充：移动开发 , Android ,
