Android-导航查看项目菜单背景色 | 导航查看项目菜单背景色

本文介绍了Android-导航查看项目菜单背景色的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我尝试更改我的项目导航视图"菜单的颜色:

i try to change color of my item Navigation View menu :

styles.xml

<item name="android:activatedBackgroundIndicator">@drawable/activated_background</item>

activated_background.xml

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" android:drawable="@color/White" />
    <item android:state_focused="true" android:drawable="@color/White" />
    <item android:state_activated="true" android:drawable="@color/White" />
    <item android:drawable="@android:color/transparent" />
</selector>

drawer.xml:

drawer.xml :

<?xml version="1.0" encoding="utf-8"?>
<menu
xmlns:android="http://schemas.android.com/apk/res/android">

<group
    android:id="@+id/group_1">
    <item
        android:id="@+id/drawer_menu_account"
        android:checked="false"
        android:title="@string/menu_account"
        android:icon="@drawable/ic_account_grey600_24dp" />
    <item
        android:id="@+id/drawer_menu_my_post"
        android:checked="false"
        android:title="@string/menu_my_post"
        android:icon="@drawable/ic_pin_grey600_24dp" />
</group>
[...]

背景颜色不变.我在做什么错了?

Background color don't change..What am i doing wrong ?

推荐答案

您没有在styles.xml文件中为Navigation View项的背景设置drawable.打开包含导航视图"窗口小部件的XML布局文件，然后将以下行添加到窗口小部件的属性中:

You don't set the drawable for the background of a Navigation View item in your styles.xml file. Open up your XML layout file containing your Navigation View widget, and add the following line to the widget's attributes:

app:itemBackground="@drawable/activated_background.xml"

如果您在使用"app"指针时遇到麻烦，请同时添加以下行:

If you're having trouble with the "app" pointer, add the following line in as well:

xmlns:app="http://schemas.android.com/apk/res-auto"

请注意，这只会更改所选列表项的背景颜色.如果您还希望更改图标和文本的颜色，请改用app:itemTextColor属性.

Note that this only changes the colour of the background of a selected list item. If you'd like the icon and text colour to change as well, use the app:itemTextColor attribute instead.

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