java - 可绘制纹波效果颜色错误

"@color/rippleEffectColor" Error in Red

App> Res>值> Colors.xml
-我为RippleEffectColor创建了颜色

<resources>
     <Color name="rippleEffectColor">#F816A463</Color>
</resources>

App>Res>Drawable
    <?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    **android:color="@color/rippleEffectColor"**
    tools:targetApi="lollipop"
    >
    <item>
        <shape android:shape="rectangle">
           <solid android:color="@color/btnSignIn"></solid>
           <stroke android:color="color/btnSignIn" android:width="2dp"></stroke>
           <corners android:radius="2dp"/>
       </shape>
    </item>

</ripple>

但是我在android：color =“ @ color / rippleEffectColor”上一直出错

最佳答案

您的代码中有两个错字。
我这样运行它，它正在工作：

<resources>
     // color has to be lower case
     <color name="rippleEffectColor">#F816A463</color>
</resources>


<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:color="@color/rippleEffectColor"
    tools:targetApi="lollipop"
    >
    <item>
        <shape android:shape="rectangle">
           <solid android:color="@color/btnSignIn"></solid>

           //The @ sign was missing before color
           <stroke android:color="@color/btnSignIn" android:width="2dp"></stroke>
           <corners android:radius="2dp"/>
       </shape>
    </item>

</ripple>