设置背景比较器失败

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title: 设置背景比较器失败
date: 2016-11-09 10:33:27
tags: problems

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• 错误：<item> tag requires a 'drawable' attribute or child tag defining a drawable

设置背景选择器的时候像常用的那样

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

就会报错，目前只有在设置背景的时候碰到过。

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• 解决办法

好吧，提示说我少drawable的话。。那么在colors.xml里面把<color>标签替换成<drawable>标签

<drawable name="leftmenu_pressed">#0f0f0f</drawable>
<drawable name="leftmenu_bg">#141414</drawable>

然后将选择器改成

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

就好了.