java.lang.IllegalStateException: ScrollView 只能承载一个直接子级
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java.lang.IllegalStateException: ScrollView can host only one direct child
提问by user3009687
I'm simply trying to add the ability to scroll through this layout by adding a scrollview however every time I attempt to load the layout I'm getting an error stating "java.lang.IllegalStateException: ScrollView can host only one direct child" and I'm unsure why.
我只是想通过添加滚动视图来添加滚动浏览此布局的能力，但是每次尝试加载布局时，我都会收到一条错误消息，指出“java.lang.IllegalStateException：ScrollView 只能承载一个直接子项”和我不确定为什么。
Any suggestions are much appreciated.
任何建议都非常感谢。
SOURCE:
来源：
<?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>
EDIT (In response to CodeMagic's answer)
编辑（响应 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>
采纳答案by codeMagic
Just as the error says
正如错误所说
ScrollView can host only one direct child
Wrap the Views inside of a LinearLayoutso the ScrollViewhas only the LinearLayoutas a direct child.
将Views包裹在a 中，LinearLayout因此ScrollView只有 theLinearLayout作为直接子项。
A ScrollView is a FrameLayout, meaning you should place one child in it containing the entire contents to scroll; this child may itself be a layout manager with a complex hierarchy of objects. A child that is often used is a LinearLayout in a vertical orientation, presenting a vertical array of top-level items that the user can scroll through.
ScrollView 是一个 FrameLayout，这意味着您应该在其中放置一个包含要滚动的全部内容的子项；这个孩子本身可能是一个具有复杂对象层次结构的布局管理器。经常使用的子元素是垂直方向的 LinearLayout，呈现用户可以滚动浏览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>
