属性缺少工具的Android名称空间前缀:context

Question

Eclipse编辑器为以下XML提供了"Attribute is missing the Android namespace prefix"错误:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    tools:context=".MainMenuActivity" >

Answer 1

因为xmlns:tools="http://schemas.android.com/tools"缺少了.代码应该如下所示:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    tools:context=".MainMenuActivity" >