android应用中的自定义单选按钮不会在禁用该按钮时变灰 [英] Custom Radio button in android app doesn't get grayed out on disabling that

问题描述

我在android中有一个自定义单选按钮.它的作品很好.我的问题是，当我禁用这些按钮时，它不会显示为灰色.我该怎么办?这是我的自定义单选按钮的示例代码.

I have a custom radio button in android. Its works fine. My problem is that When I make those button disable it will not grayed out. How can I do so? Here is my sample code for custom radio button.

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

这是我在布局中使用的代码

Here is code which I use in my layout

<RadioButton
    android:id="@+id/radioButton2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:button="@drawable/custom_radio_button"
    android:onClick="OnClick"
    android:text="button 1"
    android:textAppearance="?android:attr/textAppearanceSmall"
    android:textColor="@color/black" />

还有一件事，我需要使文本外观变小并且将常规文本颜色变为黑色.

One more thing that I required text appearance small and normal text color black.

推荐答案

请注意选择器项中的属性，因为它是逻辑AND.

Be careful with attributes in the selector item, as it is logical AND.

表示是否在项目中放入了 android:state_checked ="false" 和 android:state_enabled ="true" .只有当两者都为真时，它才起作用.下面的代码在选中，未选中和已禁用状态下正常工作.

Means if you put android:state_checked="false" and android:state_enabled="true" in an item. It will only work when both are true. Below code is working fine for selected, unselected and disabled states.

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

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