项目在android BottomNavigationView中选择的颜色 [英] item selected color in android BottomNavigationView

问题描述

我引用这个.单击计划表"时会出现计划表活动"，但始终选择第一项颜色(收藏夹").它不会从收藏夹"项目颜色更改计划"项目颜色.还有，第三项(音乐).我使用 android:state_checked 而不是 android:state_enabled ."如果使用startActivity，它不会更改收藏夹"项目颜色中的计划"项目颜色.如果不是，则更改颜色.如何解决这种颜色选择问题.

I refer this. Schedules Activity is appeared when I click Schedules, but first item color (Favorites) is always selected. It doesn't change Schedules item color from Favorites item color. And also, third item (Music). I use android:state_checked NOT android:state_enabled." If working with startActivity, it doesn't change Schedules item color from Favorites item color. If not, it change color. How to solve this color select problems.

activity_main.xml

activity_main.xml

app:itemIconTint="@drawable/nav_item_color_state"
app:itemTextColor="@drawable/nav_item_color_state"
app:menu="@menu/bottom_navigation_main"

@ drawable/nav_item_color_state

@drawable/nav_item_color_state

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="@color/white" android:state_enabled="true" />
    <item android:color="@color/colorPrimaryDark" android:state_enabled="false" />
</selector>

推荐答案

在res文件夹中创建颜色目录，并创建xml文件以自定义您的底部导航项:

create a color directory in res folder and create your xml file for customize your bottom navigation items:

res/color/bottom_nav_color.xml:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:state_checked="true" android:color="@color/your_color" />
     <item android:state_checked="false" android:color="@color/your_color"/>
</selector>

，然后在BottomNavigationView中将app:itemTextColor和app:itemIconTint值设置为 @ color/bottom_nav_color

and in your BottomNavigationView set app:itemTextColor and app:itemIconTint values to @color/bottom_nav_color

<android.support.design.widget.BottomNavigationView
   xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto"
   android:id="@+id/main_navigation"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_alignParentBottom="true"
   android:background="@color/actionBarColor"
   app:menu="@menu/my_navigation_items"
   app:itemTextColor="@color/bottom_nav_color"
   app:itemIconTint="@color/bottom_nav_color"/>

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