问题描述
我想在选中CheckBox时更改文本的颜色.这就是我现在拥有的:
I would like to change color of the text when CheckBox is checked. This is what I have for now:
<CheckBox
android:id="@+id/checkbox"
android:layout_width="20dp"
android:layout_height="20dp"
android:background="@drawable/states"
android:gravity="center_horizontal|center_vertical"
android:button="@null"
android:text="test/>
选中复选框后,通常会更改复选框背景.问题是文本.它总是相同的颜色.选中复选框后,如何更改文本颜色?
Checkbox background is normally changed when checkbox is checked. The problem is text. It's always the same color. How can I also change text color when checkbox is checked?
这是我更改复选框背景状态的方式(由于简单起见,我删除了其他内容):
This is how I change states for checkbox background (I removed extras because of simplicity):
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="false">
<layer-list >
<item>
<shape android:shape="oval">
</shape>
</item>
</layer-list>
</item>
<item android:state_checked="true" >
<layer-list >
<item>
<shape android:shape="oval">
</shape>
</item>
</layer-list >
</item>
</selector>
推荐答案
您也可以使用选择器,但可以将/res/drawable
放在/res/color
.
You can use selector as well but instead of /res/drawable
put it in /res/color
.
/res/color/text_my_checked.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:color="#ffcc00"/> <!-- checked -->
<item android:color="#ffffff"/> <!-- anything else -->
</selector>
通过调用 getResources().getColorStateList(R.color.text_my_checked)
,您将获得此颜色作为 ColorStateList
.
You would get this color as ColorStateList
by calling getResources().getColorStateList(R.color.text_my_checked)
.
从appcompat-v7 24.0.0开始,我们就可以在API 9之前的平台上的颜色状态列表中使用主题引用.这最初是在API 23中引入的.
Ever since appcompat-v7 24.0.0 we can use theme references in color state lists on platforms down to API 9. This was originally introduced in API 23.
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:color="?colorControlActivated"/> <!-- checked -->
<item android:state_checked="true" android:state_enabled="false" app:alpha="?android:disabledAlpha" android:color="?colorControlActivated"/> <!-- checked, disabled -->
<item android:color="?android:textColorPrimary"/> <!-- anything else -->
</selector>
调用 AppCompatResources.getColorStateList(checkbox.getContext(),R.color.text_my_checked)
以获得颜色状态列表.
Call AppCompatResources.getColorStateList(checkbox.getContext(), R.color.text_my_checked)
to obtain the color state list.
这篇关于选中时更改复选框文本颜色的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!