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我怎样才能改变动作条的触摸效果颜色的Andr​​oid 3.0及更高版本

分类: 技术问答 • 2022-06-15 19:29:11
问题描述：

我想，当你触摸的动作条项目变更的过渡效果的颜色。 在我的Galaxy Nexus的使用4.0.2这是怎样的一个绿松石色阴影，我想成为一个不同的颜色。

I am trying to change the color of the rollover effect when you touch an ActionBar Item. On my Galaxy Nexus with 4.0.2 it's kind of a turquoise color shading which I want to be in a different color.

需要明确的是，我这里所说的ActionBar项目，没有导航选项卡。

To be clear, I am talking about ActionBar items here, not navigation tabs.

我得到了它的兼容性库下工作，但是对于Android 3.0及更高版本，即真正的动作条，我只是不知道如何做到这一点。

I got it working under the compatibility library, but for Android 3.0 and higher, i.e. the "real" ActionBar, I just can't figure out how to do this.

有谁知道是否和如何能做到这一点？

Does anyone knows if and how this can be achieved?

答

本机操作栏使用theme属性 selectableItemBackground 行动项目的背景图。这应该是一个国家的列表绘制。

The native action bar uses the theme attribute selectableItemBackground for action item background drawing. This should be a state-list drawable.

下面是在声明 Theme.Holo ：

<style name="Theme.Holo">
    <!-- bunch of things -->
    <item name="android:selectableItemBackground">@android:drawable/item_background_holo_dark</item>
    <!-- bunch of things -->
</style>

和它绘制的XML：

<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>

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