「horizontalscrollview」Android7.0中文文档（API) -- HorizontalScrollView

horizontalscrollview

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

HorizontalScrollView

public class HorizontalScrollView

extends Framelayout

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

已知的直接子类

TabLayout

Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display. A HorizontalScrollView 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 horizontal orientation, presenting a horizontal 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。HorizontalScrollView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。子项经常在水平方位中，使用一个LinearLayout，其呈现了一个顶层项的水平排列，用户可以滚动浏览。

The TextView class also takes care of its own scrolling, so does not require a HorizontalScrollView, 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HorizontalScrollView，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。

HorizontalScrollView only supports horizontal scrolling. For vertical scrolling, use either ScrollView or listview.

HorizontalScrollView只支持水平方向的滚动。对于垂直方向的滚动，请使用哦那个ScrollView或ListView。

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
`HorizontalScrollView(context context)`
`HorizontalScrollView(Context context, AttributeSet attrs)`
`HorizontalScrollView(Context context, AttributeSet attrs, int defStyleAttr)`
`HorizontalScrollView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)`

Public方法
`void`	`addView(View child, int index)` Adds a child view. 添加一个子视图。
`void`	`addView(View child)` Adds a child view. 添加一个子视图。
`void`	`addView(View child, ViewGroup.layoutparams params)` Adds a child view with the specified layout parameters. 添加具有指定布局参数的子视图。
`void`	`addView(View child, int index, ViewGroup.LayoutParams params)` Adds a child view with the specified layout parameters. 添加具有指定布局参数的子视图。
`boolean`	`arrowScroll(int direction)` handle scrolling in response to a left or right arrow click. 处理左右箭头键的滚动。
`void`	`computeScroll()` Called by a parent to request that a child update its values for mScrollX and mScrollY if necessary. 由父项调用, 以请求子项在必要时，更新mScrollX和mScrollY的值。
`boolean`	`dispatchKeyEvent(KeyEvent event)` Dispatch a key event to the next view on the focus path. 向焦点路径上的下一个视图派发一个KeyEvent。
`void`	`draw(Canvas canvas)` Manually render this view (and all of its children) to the given Canvas. 手动将此视图 (及其所有子项) 渲染到指定的Canvas。
`boolean`	`executeKeyEvent(KeyEvent event)` You can call this function yourself to have the scroll view perform scrolling from a key event, just as if the event had been dispatched to it by the view hierarchy. 你可以自己调用这个函数，让滚动视图从一个按键事件中执行滚动，就好像事件已经被视图层次结构派发给它一样。
`void`	`fling(int velocityX)` Fling the scroll view Fling滚动视图
`boolean`	`fullScroll(int direction)` Handles scrolling in response to a "home/end" shortcut press. 处理按下“home/end”快捷键的滚动。
`Charsequence`	`getAccessibilityClassName()` Return the class name of this object to be used for accessibility purposes. 返回此对象的类名，用于辅助功能目的。
`int`	`getMaxScrollAmount()`
`boolean`	`isFillViewport()` Indicates whether this HorizontalScrollView's content is stretched to fill the viewport. 这个HorizontalScrollView的内容是否被拉伸，以填充视口（viewport）。
`boolean`	`isSmoothScrollingEnabled()`
`boolean`	`onGenericmotionevent(MotionEvent event)` Implement this method to handle generic motion events. 实现此方法以处理普通的MotionEvent。
`boolean`	`onInterceptTouchEvent(MotionEvent ev)` Implement this method to intercept all touch screen motion events. 实现此方法可拦截所有触摸屏MotionEvent。
`boolean`	`onTouchEvent(MotionEvent ev)` Implement this method to handle touch screen motion events. 实现此方法，以处理触摸屏的MotionEvent。
`boolean`	`pageScroll(int direction)` Handles scrolling in response to a "page up/down" shortcut press. 处理按下“page up/down”快捷键的滚动。
`void`	`requestChildFocus(View child, View focused)` Called when a child of this parent wants focus 当此父项的子项请求焦点时调用。
`boolean`	`requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate)` Called when a child of this group wants a particular rectangle to be positioned onto the screen. 当此组的子项希望将特定的矩形置于屏幕上时调用。
`void`	`requestDisallowInterceptTouchEvent(boolean disallowIntercept)` Called when a child does not want this parent and its ancestors to intercept touch events with `onInterceptTouchEvent(MotionEvent)`. 当一个子项不希望此父项，通过`onInterceptTouchEvent(MotionEvent)`截获TouchEvent时调用。
`void`	`requestLayout()` Call this when something has changed which has in validated the layout of this view. 当使此视图的布局失效事件发生时, 调用此方法。
`void`	`scrollTo(int x, int y)` Set the scrolled position of your view. 设置此视图到滚动位置。 This version also clamps the scrolling to the bounds of our child. 这个版本还将控制滚动到子项的边界。
`void`	`setFillViewport(boolean fillViewport)` Indicates this HorizontalScrollView whether it should stretch its content width to fill the viewport or not. 此HorizontalScrollView 是否应该拉伸它的内容宽度来填充视口（viewport）。
`void`	`setOverScrollMode(int mode)` Set the over-scroll mode for this view. 设置此视图的over-scroll模式。
`void`	`setSmoothScrollingEnabled(boolean smoothScrollingEnabled)` Set whether arrow scrolling will animate its transition. 设置箭头滚动是否使用动画转换。
`boolean`	`shouldDelayChildPressedState()` Return true if the pressed state should be delayed for children or descendants of this ViewGroup. 如果这个ViewGroup的子项要延迟按下的状态，则返回true。
`final void`	`smoothScrollBy(int dx, int dy)` Like `scrollBy(int, int)`, but scroll smoothly instead of immediately. 和`scrollBy(int, int)`，但将平滑的滚动，而不是立刻到目的位置。
`final void`	`smoothScrollTo(int x, int y)` Like `scrollTo(int, int)`, but scroll smoothly instead of immediately. 和`scrollTo(int, int)`，但将平滑的滚动，而不是立刻到目的位置。

Android7.0中文文档（API) -- HorizontalScrollView