Question

<resources>

<color name="red">#e51c23</color>
<color name="pink">#e91e63</color>
<color name="purple">#9c27b0</color>
<color name="deep_purple">#673ab7</color>

<string-array name="colors_hex_code">
    <item>@color/red</item>
    <item>@color/pink</item>
    <item>@color/purple</item>
    <item>@color/deep_purple</item>
</string-array>

</resources>

您好，我声明了colors.xml，就像代码一样，当我访问这个值时，表单就像

一样

String[] s = getResources().getStringArray(R.array.colors_hex_code);

Toast.makeText(getActivity(), "First Color: " + s[0], Toast.LENGTH_SHORT).show();

，为什么s [index]总是返回null？我想从“colors_hex_code”字符串数组中获取十六进制颜色代码。可以像这样访问吗？请帮忙。谢谢你。

Answer 1

将字符串数组更改为整数数组：

<resources>

<color name="red">#e51c23</color>
<color name="pink">#e91e63</color>
<color name="purple">#9c27b0</color>
<color name="deep_purple">#673ab7</color>

<integer-array name="colors_hex_code">
    <item>@color/red</item>
    <item>@color/pink</item>
    <item>@color/purple</item>
    <item>@color/deep_purple</item>
</integer-array>

</resources>

和java代码：

int[] s = getResources().getIntArray(R.array.colors_hex_code);

Toast.makeText(getActivity(), "First Color: " + String.format("#%06X", (0xFFFFFF & s[0])), Toast.LENGTH_SHORT).show();

Answer 2

你可能不应该声明一个＆＃34;字符串数组＆＃34;如果你存储颜色而不是字符串。

试着看一下这篇文章：

How can I save colors in array.xml and get its back to Color[] array

Answer 3

创建 colour.xml 文件

添加一些颜色：

<color name="white">#ffffff</color>
<color name="black">#000000</color>

然后在活动中：

textView.setTextColor(R.color.white);

Answer 4

来自StringArray

的文档

<item> A string, which can include styling tags. The value can be a reference to another string resource

因此，如果您想拥有string-array，则需要在strings.xml中声明颜色，或者

Answer 5

替换

<string-array name="colors_hex_code">
    <item>@color/red</item>
    <item>@color/pink</item>
    <item>@color/purple</item>
    <item>@color/deep_purple</item>
</string-array>

与

<string-array name="colors_hex_code">
<item>#FFEA4E3C</item>
<item>#FFF67A81</item>
<item>#FF665EC7</item>
<item>#FF3B3673</item>
</string-array>

Answer 6

使用数组而不是字符串数组

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="red">#e51c23</color>
    <color name="pink">#e91e63</color>
    <color name="purple">#9c27b0</color>
    <color name="deep_purple">#673ab7</color>

    <array name="colors_hex_code">
        <item>@color/red</item>
        <item>@color/pink</item>
        <item>@color/purple</item>
        <item>@color/deep_purple</item>       
    </array>
</resources>

使用

获取颜色

int[] s = context.getResources().getIntArray(R.array.colors_hex_code);

// It will show you a color code value
Toast.makeText(getActivity(), "First Color: " + s[0], Toast.LENGTH_SHORT).show();

Android色彩资源

6 个答案: