Nativescript Datepicker更改文本颜色 [英] Nativescript Datepicker change text color

问题描述

我正在尝试在Android中将日期选择器颜色更改为白色.我已经在styles.xml中尝试过colorPrimary，但是没有运气:

I'm trying to change the datepicker color to white in Android. I've tried with colorPrimary in styles.xml with no luck:

<style name="AppTheme" parent="AppThemeBase">
    <item name="android:datePickerStyle">@style/SpinnerDatePicker</item>
</style>

<style name="SpinnerDatePicker" parent="android:Widget.Material.Light.DatePicker">
    <item name="colorPrimary">#FFF</item>
    <item name="android:datePickerMode">spinner</item>
</style>

还有，是否有一种方法可以在组件中使用一种颜色，而在一秒钟内使用另一种颜色，或者我是否必须在整个应用程序中使用一种颜色?

Also, is there a way to use one color in a component and another in a second or am I bound to use one color for the whole app?

推荐答案

您不能动态更改DatePicker的颜色……至少这不是一件微不足道的工作.事实是，即使在本机Android中，也只能通过Reflection API来实现通过后台代码更改颜色的功能(请参见此处有关详细信息).

You can't change the color of the DatePicker dynamically... at least it is not a trivial job. The thing is that even in native Android changing the color via code-behind can be achieved only with the Reflection API (see here for details).

要更改DatePicker的文本颜色，需要注意一件事-您应在主要的应用主题中直接应用android:textColorPrimary (请参阅注释此处了解详情)

To change the text color of the DatePicker there is one important thing to notice - you should apply android:textColorPrimary directly in the main app theme (see the comments here for details)

例如: values-v21/style.xml

For example: values-v21/style.xml

<style name="AppTheme" parent="AppThemeBase">
    <item name="android:textColorPrimary">@color/ns_green</item> <!-- HERE -->
    <item name="android:datePickerStyle">@style/SpinnerDatePicker</item>
    <item name="android:timePickerStyle">@style/SpinnerTimePicker</item>
</style>

在上面的示例中，ns_green是在colors.xml

In the example above ns_green is defined in colors.xml

<color name="ns_green">#1eb234</color>

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