Android XML中的错误-无界前缀

有人能解释我为什么会在这里出错吗？ 这是res/layout文件夹中的my styles.xml

<resources>

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
    -->
    <style name="AppBaseTheme" parent="Theme.AppCompat.Light">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <item name="android:buttonStyle">@style/ButtonTheme</item>
    </style>


   <style name="ButtonTheme" parent="android:Widget.Button">
        <item name="android:textColor">@color/Black</item>
        <item name="android:background">@color/LightGrey</item>
        <item name="android:textSize">23sp</item>
        <padding 
            android:left="1dp"
             android:top="1dp"
             android:right="1dp"
             android:bottom="1dp"
             /> 
    </style>

</resources>

@款式/钮扣
@颜色/黑色
@颜色/浅灰色
23便士

---

错误似乎发生在ButtonTheme中的padding部分，您错过了名称空间声明。 尝试插入

xmlns:android=”http://schemas.android.com/apk/res/android“

转换为

i、 e

---

您必须使用android前缀命名空间，例如：-android:name=“AppBaseTheme”

您应该使用

<item name="android:padding">1dp</item>

1dp

而不是

<padding 
        android:left="1dp"
         android:top="1dp"
         android:right="1dp"
         android:bottom="1dp"
         /> 

---

缺少架构uri，填充格式不正确

<resources xmlns:android="http://schemas.android.com/apk/res/android">

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
    -->
    <style name="AppBaseTheme" parent="Theme.AppCompat.Light">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <item name="android:buttonStyle">@style/ButtonTheme</item>
    </style>

    <style name="ButtonTheme" parent="android:Widget.Button">
        <item name="android:textColor">@color/Black</item>
        <item name="android:background">@color/LightGrey</item>
        <item name="android:textSize">23sp</item>
        <item name="android:paddingLeft">1dp</item>
        <item name="android:paddingRight">1dp</item>
        <item name="android:paddingTop">1dp</item>
        <item name="android:paddingBottom">1dp</item>
    </style>

</resources>

@款式/钮扣
@颜色/黑色
@颜色/浅灰色
23便士
1dp
1dp
1dp
1dp

android没有名称空间。你可以使用

1dp

我认为填充行有问题，它不是这样定义填充的方法。没有必要在style.xml文件中定义填充，你是否检查过答案，在这里发布之前在哪里工作？

<resources xmlns:android="http://schemas.android.com/apk/res/android">

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
    -->
    <style name="AppBaseTheme" parent="Theme.AppCompat.Light">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <item name="android:buttonStyle">@style/ButtonTheme</item>
    </style>

    <style name="ButtonTheme" parent="android:Widget.Button">
        <item name="android:textColor">@color/Black</item>
        <item name="android:background">@color/LightGrey</item>
        <item name="android:textSize">23sp</item>
        <item name="android:paddingLeft">1dp</item>
        <item name="android:paddingRight">1dp</item>
        <item name="android:paddingTop">1dp</item>
        <item name="android:paddingBottom">1dp</item>
    </style>

</resources>