关于'android'属性的警告

Question

每次我将“android”属性放到位置时，我都会收到此警告。请帮忙。

Answer 1

您需要添加 xmlns：android =＆＃34; http：//schemas.android.com/apk/res/android"在根布局中

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent">
........
</RelativeLayout>

Answer 2

试试这个：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical"
      android:layout_width="match_parent"
      android:layout_height="match_parent">

    //put your radio group here

</LinearLayout>