java.lang.IllegalStateException:ScrollView只能托管一个直接子项

Question

我只是尝试通过添加scrollview添加滚动浏览此布局的功能,但每次我尝试加载布局时,我都会收到一条错误,指出"java.lang.IllegalStateException:ScrollView只能托管一个直接子项",我不确定为什么.

任何建议都非常感谢.

资源:

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:orientation="vertical" >

    <RelativeLayout>

        <View
            android:layout_width="1dp"
            android:layout_height="5dp" >
        </View>

        <ScrollView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1" >

            <com.google.android.youtube.player.YouTubePlayerView
                android:id="@+id/youtubeplayerview"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />

            <View
                android:layout_width="1dp"
                android:layout_height="5dp" >
            </View>

            <TextView
                android:id="@+id/textView1a"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Isaac Daniel at CNN Anderson Cooper"
                android:textAppearance="?android:attr/textAppearanceMedium" />

            <TextView
                android:id="@+id/textView2a"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="by idconex"
                android:textAppearance="?android:attr/textAppearanceSmall" />

            <TextView
                android:id="@+id/textView3a"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="675,000,000 views"
                android:textAppearance="?android:attr/textAppearanceSmall" />

            <com.google.android.youtube.player.YouTubePlayerView
                android:id="@+id/youtubeplayerview2"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />

            <TextView
                android:id="@+id/textView1b"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Rage Against The Machine - Bulls on Parade"
                android:textAppearance="?android:attr/textAppearanceMedium" />

            <TextView
                android:id="@+id/textView2b"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="by RATMVEVO"
                android:textAppearance="?android:attr/textAppearanceSmall" />

            <TextView
                android:id="@+id/textView3b"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="1,195,601 views"
                android:textAppearance="?android:attr/textAppearanceSmall" />
        </ScrollView>
    </RelativeLayout>

</LinearLayout>

编辑(回应CodeMagic的回答)

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:orientation="vertical" >


<ScrollView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1" >
      <LinearLayout android:layout_width="match_parent"
                    android:layout_height="wrap_content">



            <com.google.android.youtube.player.YouTubePlayerView
                android:id="@+id/youtubeplayerview"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />

            <View
                android:layout_width="1dp"
                android:layout_height="5dp" >
            </View>

            <TextView
                android:id="@+id/textView1a"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Isaac Daniel at CNN Anderson Cooper"
                android:textAppearance="?android:attr/textAppearanceMedium" />

            <TextView
                android:id="@+id/textView2a"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="by idconex"
                android:textAppearance="?android:attr/textAppearanceSmall" />

            <TextView
                android:id="@+id/textView3a"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="675,000,000 views"
                android:textAppearance="?android:attr/textAppearanceSmall" />

            <com.google.android.youtube.player.YouTubePlayerView
                android:id="@+id/youtubeplayerview2"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />

            <TextView
                android:id="@+id/textView1b"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Rage Against The Machine - Bulls on Parade"
                android:textAppearance="?android:attr/textAppearanceMedium" />

            <TextView
                android:id="@+id/textView2b"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="by RATMVEVO"
                android:textAppearance="?android:attr/textAppearanceSmall" />

            <TextView
                android:id="@+id/textView3b"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="1,195,601 views"
                android:textAppearance="?android:attr/textAppearanceSmall" />

         </LinearLayout>

Answer 1

正如错误所说的那样

ScrollView can host only one direct child

包裹View内的A S LinearLayout,因此ScrollView只具有LinearLayout作为直接孩子.

来自Docs

ScrollView是一个FrameLayout,意味着你应该在其中放置一个包含整个内容的子项进行滚动; 这个子本身可能是一个具有复杂对象层次结构的布局管理器.经常使用的子项是垂直方向的LinearLayout,呈现用户可以滚动的顶级项目的垂直数组.

<ScrollView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1" >
      <LinearLayout android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical">
           // all the views currently in your ScrollView
     </LinearLayout>
</ScrollView>