Separate day/night selector for button text color-CodePudding

I created a custom selector for button text color:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="?android:attr/textColorPrimary" android:state_enabled="true" />
    <item android:alpha="0.38" android:color="?android:attr/textColorPrimary" />
</selector>

However, I would like to use ?android:attr/textColorPrimary for the color in night theme and ?android:attr/colorPrimary in day theme. How can I achieve this?

CodePudding user response：

create folder drawable-night at put night-variant in it, leave untouched file in common drawable folder

CodePudding user response：

Each attribute will have its complementary light and dark color in a day/night mode setting. You can create a new item in the theme.xml for light mode and dark mode and use that.

Inside res directory create a values-night folder and inside that create a themes.xml this will contain your night theme. The themes.xml in values folder contains your day theme.

For example Say: this is your theme.xml in values folder

<resources xmlns:tools="http://schemas.android.com/tools">

<style name="Theme.MyApp" parent="Base.Theme.MyApp">

    <item name="buttonColor">@color/light_base_1</item>

</resources>

This is your theme.xml in values-night folder

    <resources xmlns:tools="http://schemas.android.com/tools">

<style name="Theme.MyApp" parent="Base.Theme.MyApp">

    <item name="buttonColor">@color/dark_base_1</item>

</resources>

create an attribute in attrs.xml file

    <attr name="buttonColor" format="color" />

Then you can use this new attribute in the selector

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="?android:attr/textColorPrimary" android:state_enabled="true" />
<item android:alpha="0.38" android:color="?attr/buttonColor" />