Android xml drawable color change on selected/focused

Question

我创建了一个可绘制的 xml 文件来使用以下代码绘制一条线。

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="line">
            <solid android:color="@color/colorPrimary" />
            <size android:width="100dp" android:height="50dp" />
            <stroke android:width="5dp" android:color="@color/colorPrimary" />
        </shape>
    </item>

</selector>

结果图片：

我想在选择或聚焦时更改此图像颜色。我怎样才能做到这一点？任何指导将不胜感激。谢谢你

Answer 1

您可以在<selector>下添加多个<item>s，并在<item>标签中指定状态作为属性。

这里是语法

<item
    android: state_pressed = ["true" | "false"]
    android: state_focused = ["true" | "false"]
    android: state_hovered = ["true" | "false"]
    android: state_selected = ["true" | "false"]
    android: state_checkable = ["true" | "false"]
    android: state_checked = ["true" | "false"]
    android: state_enabled = ["true" | "false"]
    android: state_activated = ["true" | "false"]
    android: state_window_focused = ["true" | "false"]/>

Answer 2

试试这个：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_selected="true">
        <shape android:shape="line" >
            <solid android:color="@color/newcolor" />
            <size android:width="100dp" android:height="50dp" />
            <stroke android:width="5dp" android:color="@color/colorPrimary" />
        </shape>
    </item>
    <item android:state_focused="true">
        <shape android:shape="line" >
            <solid android:color="@color/newcolor" />
            <size android:width="100dp" android:height="50dp" />
            <stroke android:width="5dp" android:color="@color/colorPrimary" />
        </shape>
    </item>
    <item>
        <shape android:shape="line">
            <solid android:color="@color/colorPrimary" />
            <size android:width="100dp" android:height="50dp" />
            <stroke android:width="5dp" android:color="@color/colorPrimary" />
        </shape>
    </item>

</selector>