Android7.0中文文档（API） -- ScrollView

完整内容，请查看：http://www.zhdoc.net/android/reference/android/widget/ScrollView.html

ScrollView

public class ScrollView

extends

FrameLayout

java.lang.Object
↳	android.view.View
	↳	android.view.ViewGroup
		↳	android.widget.FrameLayout
			↳	android.widget.ScrollView

Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display. 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.

视图层次结构的布局容器，可以由用户进行滚动，允许它的内容比物理显示屏更大。ScrollView是一个

FrameLayout

，这意味着你应该在其中放置一个子项来滚动，其包含了所有的内容；这个子项本身可能是一个具有复杂的对象层次结构的布局管理器。子项经常在垂直方位中，使用一个

LinearLayout

，其呈现了一个顶层项的垂直排列，用户可以滚动浏览。

You should never use a ScrollView with a

ListView

, because ListView takes care of its own vertical scrolling. Most importantly, doing this defeats
all of the important optimizations in ListView for dealing with large lists, since it effectively forces the ListView to display its entire list of items to fill up the infinite container supplied by ScrollView.

你不能将ScrollView和

ListView

一起使用，因为ListView负责自己的垂直滚动操作。最重要的是，这样做会破坏ListView中为处理大型列表所有重要的优化，因为它有效地迫使ListView显示它的整个列表，以填充由ScrollView提供的无限容器。

The

TextView

class also takes care of its own scrolling, so does not require a ScrollView, but using the two together is possible to achieve the
effect of a text view within a larger container.

TextView

类也负责它自己的滚动，因此不需要ScrollView，但是同时使用，可以实现在较大容器中的显示文本视图的效果。

ScrollView only supports vertical scrolling. For horizontal scrolling, use

HorizontalScrollView

.

ScrollView仅支持垂直滚动。关于水平滚动，请使用

HorizontalScrollView

。

摘要

XML属性
android:fillViewport	设置scrollview是否应拉伸其内容以填充可视区域。

继承XML属性
From class android.widget.FrameLayout
From class android.view.ViewGroup
From class android.view.View

继承常量
From class android.view.ViewGroup
From class android.view.View

继承字段
From class android.view.View

Public构造方法
ScrollView(Context context)
ScrollView(Context context, AttributeSet attrs)
ScrollView(Context context, AttributeSet attrs, int defStyleAttr)
ScrollView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)

Public方法

完整内容，请查看：http://www.zhdoc.net/android/reference/android/widget/ScrollView.html