Inheritance diagram for com.freerdp.freerdpcore.presentation.ScrollView2D:

Collaboration diagram for com.freerdp.freerdpcore.presentation.ScrollView2D:

Data Structures
interface	ScrollView2DListener

Public Member Functions
	ScrollView2D (Context context)

	ScrollView2D (Context context, AttributeSet attrs)

	ScrollView2D (Context context, AttributeSet attrs, int defStyle)

void	setScrollEnabled (boolean enable)

int	getMaxScrollAmountVertical ()

int	getMaxScrollAmountHorizontal ()

void	addView (View child)

void	addView (View child, int index)

void	addView (View child, ViewGroup.LayoutParams params)

void	addView (View child, int index, ViewGroup.LayoutParams params)

boolean	dispatchKeyEvent (KeyEvent event)

boolean	executeKeyEvent (KeyEvent event)

boolean	onInterceptTouchEvent (MotionEvent ev)

boolean	onTouchEvent (MotionEvent ev)

boolean	fullScroll (int direction, boolean horizontal)

boolean	arrowScroll (int direction, boolean horizontal)

final void	smoothScrollBy (int dx, int dy)

final void	smoothScrollTo (int x, int y)

void	computeScroll ()

void	requestChildFocus (View child, View focused)

boolean	requestChildRectangleOnScreen (View child, Rect rectangle, boolean immediate)

void	requestLayout ()

void	fling (int velocityX, int velocityY)

void	scrollTo (int x, int y)

void	setScrollViewListener (ScrollView2DListener scrollViewListener)

Protected Member Functions
float	getTopFadingEdgeStrength ()

float	getBottomFadingEdgeStrength ()

float	getLeftFadingEdgeStrength ()

float	getRightFadingEdgeStrength ()

int	computeVerticalScrollRange ()

int	computeHorizontalScrollRange ()

void	measureChild (View child, int parentWidthMeasureSpec, int parentHeightMeasureSpec)

void	measureChildWithMargins (View child, int parentWidthMeasureSpec, int widthUsed, int parentHeightMeasureSpec, int heightUsed)

int	computeScrollDeltaToGetChildRectOnScreen (Rect rect)

boolean	onRequestFocusInDescendants (int direction, Rect previouslyFocusedRect)

void	onLayout (boolean changed, int l, int t, int r, int b)

void	onSizeChanged (int w, int h, int oldw, int oldh)

void	onScrollChanged (int x, int y, int oldx, int oldy)

Detailed Description

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

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

Constructor & Destructor Documentation

◆ ScrollView2D() [1/3]

com.freerdp.freerdpcore.presentation.ScrollView2D.ScrollView2D ( Context context )

inline

◆ ScrollView2D() [2/3]

com.freerdp.freerdpcore.presentation.ScrollView2D.ScrollView2D	(	Context	context,
		AttributeSet	attrs
	)

inline

◆ ScrollView2D() [3/3]

com.freerdp.freerdpcore.presentation.ScrollView2D.ScrollView2D	(	Context	context,
		AttributeSet	attrs,
		int	defStyle
	)

inline

Member Function Documentation

◆ addView() [1/4]

void com.freerdp.freerdpcore.presentation.ScrollView2D.addView ( View child )

inline

◆ addView() [2/4]

void com.freerdp.freerdpcore.presentation.ScrollView2D.addView	(	View	child,
		int	index
	)

inline

◆ addView() [3/4]

void com.freerdp.freerdpcore.presentation.ScrollView2D.addView	(	View	child,
		int	index,
		ViewGroup.LayoutParams	params
	)

inline

◆ addView() [4/4]

void com.freerdp.freerdpcore.presentation.ScrollView2D.addView	(	View	child,
		ViewGroup.LayoutParams	params
	)

inline

◆ arrowScroll()

boolean com.freerdp.freerdpcore.presentation.ScrollView2D.arrowScroll	(	int	direction,
		boolean	horizontal
	)

inline

Handle scrolling in response to an up or down arrow click.

Parameters

direction The direction corresponding to the arrow key that was pressed

Returns: True if we consumed the event, false otherwise

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◆ computeHorizontalScrollRange()

int com.freerdp.freerdpcore.presentation.ScrollView2D.computeHorizontalScrollRange ( )

inlineprotected

◆ computeScroll()

void com.freerdp.freerdpcore.presentation.ScrollView2D.computeScroll ( )

inline

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◆ computeScrollDeltaToGetChildRectOnScreen()

int com.freerdp.freerdpcore.presentation.ScrollView2D.computeScrollDeltaToGetChildRectOnScreen ( Rect rect )

inlineprotected

Compute the amount to scroll in the Y direction in order to get a rectangle completely on the screen (or, if taller than the screen, at least the first screen size chunk of it).

Parameters

rect The rect.

Returns: The scroll delta.

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◆ computeVerticalScrollRange()

int com.freerdp.freerdpcore.presentation.ScrollView2D.computeVerticalScrollRange ( )

inlineprotected

The scroll range of a scroll view is the overall height of all of its children.

◆ dispatchKeyEvent()

boolean com.freerdp.freerdpcore.presentation.ScrollView2D.dispatchKeyEvent ( KeyEvent event )

inline

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◆ executeKeyEvent()

boolean com.freerdp.freerdpcore.presentation.ScrollView2D.executeKeyEvent ( KeyEvent event )

inline

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.

Parameters

event The key event to execute.

Returns: Return true if the event was handled, else false.

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◆ fling()

void com.freerdp.freerdpcore.presentation.ScrollView2D.fling	(	int	velocityX,
		int	velocityY
	)

inline

Fling the scroll view

Parameters

velocityY The initial velocity in the Y direction. Positive numbers mean that the finger/curor is moving down the screen, which means we want to scroll towards the top.

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◆ fullScroll()

boolean com.freerdp.freerdpcore.presentation.ScrollView2D.fullScroll	(	int	direction,
		boolean	horizontal
	)

inline

Handles scrolling in response to a "home/end" shortcut press. This method will scroll the view to the top or bottom and give the focus to the topmost/bottommost component in the new visible area. If no component is a good candidate for focus, this scrollview reclaims the focus.

Parameters

direction the scroll direction: android.view.View#FOCUS_UP to go the top of the view or android.view.View#FOCUS_DOWN to go the bottom

Returns: true if the key event is consumed by this method, false otherwise

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◆ getBottomFadingEdgeStrength()

float com.freerdp.freerdpcore.presentation.ScrollView2D.getBottomFadingEdgeStrength ( )

inlineprotected

◆ getLeftFadingEdgeStrength()

float com.freerdp.freerdpcore.presentation.ScrollView2D.getLeftFadingEdgeStrength ( )

inlineprotected

◆ getMaxScrollAmountHorizontal()

int com.freerdp.freerdpcore.presentation.ScrollView2D.getMaxScrollAmountHorizontal ( )

inline

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◆ getMaxScrollAmountVertical()

int com.freerdp.freerdpcore.presentation.ScrollView2D.getMaxScrollAmountVertical ( )

inline

Returns: The maximum amount this scroll view will scroll in response to an arrow event.

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◆ getRightFadingEdgeStrength()

float com.freerdp.freerdpcore.presentation.ScrollView2D.getRightFadingEdgeStrength ( )

inlineprotected

◆ getTopFadingEdgeStrength()

float com.freerdp.freerdpcore.presentation.ScrollView2D.getTopFadingEdgeStrength ( )

inlineprotected

◆ measureChild()

void com.freerdp.freerdpcore.presentation.ScrollView2D.measureChild	(	View	child,
		int	parentWidthMeasureSpec,
		int	parentHeightMeasureSpec
	)

inlineprotected

◆ measureChildWithMargins()

void com.freerdp.freerdpcore.presentation.ScrollView2D.measureChildWithMargins	(	View	child,
		int	parentWidthMeasureSpec,
		int	widthUsed,
		int	parentHeightMeasureSpec,
		int	heightUsed
	)

inlineprotected

◆ onInterceptTouchEvent()

boolean com.freerdp.freerdpcore.presentation.ScrollView2D.onInterceptTouchEvent ( MotionEvent ev )

inline

◆ onLayout()

void com.freerdp.freerdpcore.presentation.ScrollView2D.onLayout	(	boolean	changed,
		int	l,
		int	t,
		int	r,
		int	b
	)

inlineprotected

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◆ onRequestFocusInDescendants()

boolean com.freerdp.freerdpcore.presentation.ScrollView2D.onRequestFocusInDescendants	(	int	direction,
		Rect	previouslyFocusedRect
	)

inlineprotected

When looking for focus in children of a scroll view, need to be a little more careful not to give focus to something that is scrolled off screen.

This is more expensive than the default android.view.ViewGroup implementation, otherwise this behavior might have been made the default.

◆ onScrollChanged()

void com.freerdp.freerdpcore.presentation.ScrollView2D.onScrollChanged	(	int	x,
		int	y,
		int	oldx,
		int	oldy
	)

inlineprotected

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◆ onSizeChanged()

void com.freerdp.freerdpcore.presentation.ScrollView2D.onSizeChanged	(	int	w,
		int	h,
		int	oldw,
		int	oldh
	)

inlineprotected

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◆ onTouchEvent()

boolean com.freerdp.freerdpcore.presentation.ScrollView2D.onTouchEvent ( MotionEvent ev )

inline

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◆ requestChildFocus()

void com.freerdp.freerdpcore.presentation.ScrollView2D.requestChildFocus	(	View	child,
		View	focused
	)

inline

◆ requestChildRectangleOnScreen()

boolean com.freerdp.freerdpcore.presentation.ScrollView2D.requestChildRectangleOnScreen	(	View	child,
		Rect	rectangle,
		boolean	immediate
	)

inline

◆ requestLayout()

void com.freerdp.freerdpcore.presentation.ScrollView2D.requestLayout ( )

inline

◆ scrollTo()

void com.freerdp.freerdpcore.presentation.ScrollView2D.scrollTo	(	int	x,
		int	y
	)

inline

This version also clamps the scrolling to the bounds of our child.

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◆ setScrollEnabled()

void com.freerdp.freerdpcore.presentation.ScrollView2D.setScrollEnabled ( boolean enable )

inline

Disable/Enable scrolling

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◆ setScrollViewListener()

void com.freerdp.freerdpcore.presentation.ScrollView2D.setScrollViewListener ( ScrollView2DListener scrollViewListener )

inline

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◆ smoothScrollBy()

final void com.freerdp.freerdpcore.presentation.ScrollView2D.smoothScrollBy	(	int	dx,
		int	dy
	)

inline

Like View#scrollBy, but scroll smoothly instead of immediately.

Parameters

dx	the number of pixels to scroll by on the X axis
dy	the number of pixels to scroll by on the Y axis

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◆ smoothScrollTo()

final void com.freerdp.freerdpcore.presentation.ScrollView2D.smoothScrollTo	(	int	x,
		int	y
	)

inline

Like scrollTo, but scroll smoothly instead of immediately.

Parameters

x	the position where to scroll on the X axis
y	the position where to scroll on the Y axis

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The documentation for this class was generated from the following file:

ScrollView2D.java

Data Structures

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ ScrollView2D() [1/3]

◆ ScrollView2D() [2/3]

◆ ScrollView2D() [3/3]

Member Function Documentation

◆ addView() [1/4]

◆ addView() [2/4]

◆ addView() [3/4]

◆ addView() [4/4]

◆ arrowScroll()

◆ computeHorizontalScrollRange()

◆ computeScroll()

◆ computeScrollDeltaToGetChildRectOnScreen()

◆ computeVerticalScrollRange()

◆ dispatchKeyEvent()

◆ executeKeyEvent()

◆ fling()

◆ fullScroll()

◆ getBottomFadingEdgeStrength()

◆ getLeftFadingEdgeStrength()

◆ getMaxScrollAmountHorizontal()

◆ getMaxScrollAmountVertical()

◆ getRightFadingEdgeStrength()

◆ getTopFadingEdgeStrength()

◆ measureChild()

◆ measureChildWithMargins()

◆ onInterceptTouchEvent()

◆ onLayout()

◆ onRequestFocusInDescendants()

◆ onScrollChanged()

◆ onSizeChanged()

◆ onTouchEvent()

◆ requestChildFocus()

◆ requestChildRectangleOnScreen()

◆ requestLayout()

◆ scrollTo()

◆ setScrollEnabled()

◆ setScrollViewListener()

◆ smoothScrollBy()

◆ smoothScrollTo()