如何将颜色值保存在array.xml中,并将其作为Color []数组检索回我的代码?
预先感谢!
如何将颜色值保存在array.xml中,并将其作为Color []数组检索回我的代码?
预先感谢!
Answers:
定义您的颜色资源,然后将它们添加到数组中以供访问。
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="bright_pink">#FF007F</color>
<color name="red">#FF0000</color>
<color name="orange">#FF7F00</color>
<color name="yellow">#FFFF00</color>
<color name="chartreuse">#7FFF00</color>
<color name="green">#00FF00</color>
<color name="spring_green">#00FF7F</color>
<color name="cyan">#00FFFF</color>
<color name="azure">#007FFF</color>
<color name="blue">#0000FF</color>
<color name="violet">#7F00FF</color>
<color name="magenta">#FF00FF</color>
<array name="rainbow">
<item>@color/bright_pink</item>
<item>@color/red</item>
<item>@color/orange</item>
<item>@color/yellow</item>
<item>@color/chartreuse</item>
<item>@color/green</item>
<item>@color/spring_green</item>
<item>@color/cyan</item>
<item>@color/azure</item>
<item>@color/blue</item>
<item>@color/violet</item>
<item>@color/magenta</item>
</array>
</resources>
然后像这样访问它们:
int[] rainbow = context.getResources().getIntArray(R.array.rainbow);
for (int i = 0; i < tileColumns; i++) {
paint.setColor(rainbow[i]);
// Do something with the paint.
}
如果在array.xml中:
<resources>
<array name="colors">
<item>#ffffff</item>
<item>#000000</item>
</array>
</resources>
这将为您提供该数组的颜色值:
TypedArray ta = context.getResources().obtainTypedArray(R.array.colors);
int[] colors = new int[ta.length()];
for (int i = 0; i < ta.length(); i++) {
colors[i] = ta.getColor(i, 0);
}
ta.recycle();
这只是在文档中的TypedArray示例上进行了扩展: http //developer.android.com/guide/topics/resources/more-resources.html#TypedArray
希望能帮助到你!
<array name="colors"> <item>@color/myred</item> <item>@color/myblue</item> </array>
colors.xml
<resources>
<string-array name="colors">
<item>#ff0000</item>
<item>#00ff00</item>
<item>#0000ff</item>
</string-array>
</resources>
活动类中的代码。
String[] allColors = context.getResources().getStringArray(R.array.colors);
Color.parseColor(allColors[0]) // red
Color.parseColor(allColors[1]) // green
Color.parseColor(allColors[2]) // blue
我无法发表评论,因此必须将其作为新回复。我完全同意使用颜色资源类型的Sky Kelsey wrt设计选择。但是,我发现访问它们的建议方法无效。通过这种方式,我实现了使用XML数组来轻松遍历颜色列表并将颜色应用于各种(自定义绘制)视图的方式。
首先是arrays.xml中的数组:
<array name="ingr_color_arr">
<item>@color/ingr_red1</item>
<item>@color/ingr_orange1</item>
<item>@color/ingr_yellow1</item>
<item>@color/ingr_green1</item>
<item>@color/ingr_blue1</item>
<item>@color/ingr_violet1</item>
<item>@color/ingr_red2</item>
<item>@color/ingr_orange2</item>
<item>@color/ingr_yellow2</item>
<item>@color/ingr_green2</item>
<item>@color/ingr_blue2</item>
<item>@color/ingr_violet2</item>
</array>
然后在color.xml中:
<color name="ingr_red1">#FFCC0000</color>
<color name="ingr_orange1">#FFED5F21</color>
<color name="ingr_yellow1">#FFFAE300</color>
<color name="ingr_green1">#FF5B9C0A</color>
<color name="ingr_blue1">#FF0A0D9C</color>
<color name="ingr_violet1">#FF990A9C</color>
<color name="ingr_red2">#FFFFCCCC</color>
<color name="ingr_orange2">#FFFFEACC</color>
<color name="ingr_yellow2">#FFFFFECC</color>
<color name="ingr_green2">#FFC7F5C4</color>
<color name="ingr_blue2">#FFC4DAF4</color>
<color name="ingr_violet2">#FFE1C4F4</color>
然后使用它:
TypedArray ta = res.obtainTypedArray(R.array.ingr_color_arr);
int colorToUse = ta.getResourceId(intGroupNum.intValue() - 1, R.color.recipe_detail_border);
paint.setColor(colorToUse);
这里的关键是使用getResourceId,因为setColor(int)将期望颜色的资源ID。尝试使用getIntArray()or获取值时,出现“找不到资源”错误getColor()。
最受欢迎的答案可能有用...我没有尝试过,因为我更喜欢“颜色阵列”设计选择。
如果使用整数数组,则可以直接获取颜色
colors.xml
<color name="easy">#FF0000</color>
<color name="normal">#00FF00</color>
<color name="hard">#0000FF</color>
<integer-array name="colors_difficulty">
<item>@color/easy</item>
<item>@color/normal</item>
<item>@color/hard</item>
</integer-array>
码
val colorsDif = resources.getIntArray(R.array.colors_dificulty);
view.setBackgroundColor(colorsDif[0])
Color.xml:
<string-array name="listcolors">
<item>#448AFF</item>
<item>#FFC107</item>
<item>#009688</item>
<item>#ff8000</item>
<item>#ffbf00</item>
<item>#0000ff</item>
<item>#936c6c</item>
<item>#7733ff</item>
<item>#7733ff</item>
<item>#ff8000</item>
<item>#448AFF</item>
<item>#0000ff</item>
</string-array>
activity.java文件
Context context;
String[] colors = context.getResources().getStringArray(R.array.listcolors);
String bg_color = colors[i]; //i=1,2,3...
<color name="gblue">#4285F4</color>
<color name="ggreen">#34A853</color>
<color name="gyellow">#FBBC05</color>
<color name="gred">#EA4335</color>
<array name="google_colors">
<item>@color/gblue</item>
<item>@color/ggreen</item>
<item>@color/gyellow</item>
<item>@color/gred</item>
</array>
在java / kotlin中使用此样式,或者在xml中不使用样式