类 com.ab.view.wheel.AbWheelView 继承关系图:

类
interface	AbOnWheelChangedListener

interface	AbOnWheelScrollListener

Public 成员函数
	AbWheelView (Context context, AttributeSet attrs, int defStyle)

	AbWheelView (Context context, AttributeSet attrs)

	AbWheelView (Context context)

AbWheelAdapter	getAdapter ()

void	setAdapter (AbWheelAdapter adapter)

void	setInterpolator (Interpolator interpolator)

int	getVisibleItems ()

void	setVisibleItems (int count)

String	getLabel ()

void	setLabel (String newLabel)

void	addChangingListener (AbOnWheelChangedListener listener)

void	removeChangingListener (AbOnWheelChangedListener listener)

void	addScrollingListener (AbOnWheelScrollListener listener)

void	removeScrollingListener (AbOnWheelScrollListener listener)

int	getCurrentItem ()

void	setCurrentItem (int index, boolean animated)

void	setCurrentItem (int index)

boolean	isCyclic ()

void	setCyclic (boolean isCyclic)

boolean	onTouchEvent (MotionEvent event)

void	scroll (int itemsToScroll, int time)

void	setValueTextSize (int textSize)

int[]	getCenterSelectGradientColors ()

void	setCenterSelectGradientColors (int[] centerSelectGradientColors)

int	getCenterSelectStrokeWidth ()

void	setCenterSelectStrokeWidth (int centerSelectStrokeWidth)

int	getCenterSelectStrokeColor ()

void	setCenterSelectStrokeColor (int centerSelectStrokeColor)

void	setCenterSelectDrawable (Drawable centerSelectDrawable)

void	setValueTextColor (int valueTextColor)

void	setLabelTextColor (int labelTextColor)

void	setLabelTextSize (int labelTextSize)

void	setAdditionalItemHeight (int additionalItemHeight)

Protected 成员函数
void	notifyChangingListeners (int oldValue, int newValue)

void	notifyScrollingListenersAboutStart ()

void	notifyScrollingListenersAboutEnd ()

void	onMeasure (int widthMeasureSpec, int heightMeasureSpec)

void	onDraw (Canvas canvas)

包函数
void	finishScrolling ()

包属性
boolean	isCyclic = false

Private 成员函数
void	initData (Context context)

void	invalidateLayouts ()

void	initResourcesIfNecessary ()

int	getDesiredHeight (Layout layout)

String	getTextItem (int index)

String	buildText (boolean useCurrentValue)

int	getMaxTextLength ()

int	getItemHeight ()

int	calculateLayoutWidth (int widthSize, int mode)

void	createLayouts (int widthItems, int widthLabel)

void	drawShadows (Canvas canvas)

void	drawValue (Canvas canvas)

void	drawItems (Canvas canvas)

void	drawCenterRect (Canvas canvas)

void	doScroll (int delta)

void	setNextMessage (int message)

void	clearMessages ()

void	justify ()

void	startScrolling ()

Private 属性
Context	mContext = null

AbWheelAdapter	adapter = null

int	currentItem = 0

int	itemsWidth = 0

int	labelWidth = 0

int	visibleItems = DEF_VISIBLE_ITEMS

int	itemHeight = 0

TextPaint	itemsPaint

TextPaint	valuePaint

TextPaint	labelPaint

StaticLayout	itemsLayout

StaticLayout	labelLayout

StaticLayout	valueLayout

String	label

boolean	isScrollingPerformed

int	scrollingOffset

GestureDetector	gestureDetector

Scroller	scroller

int	lastScrollY

List< AbOnWheelChangedListener >	changingListeners = new LinkedList<AbOnWheelChangedListener>()

List< AbOnWheelScrollListener >	scrollingListeners = new LinkedList<AbOnWheelScrollListener>()

Drawable	centerSelectDrawable

int[]	centerSelectGradientColors = new int[] {0x70222222,0x70222222, 0x70EEEEEE}

int	centerSelectStrokeWidth = 1

int	centerSelectStrokeColor = 0x70333333

GradientDrawable	topShadow

GradientDrawable	bottomShadow

int	valueTextColor = 0xF0000000

int	labelTextColor = 0xF0000000

int[]	bottomGradientColors = new int[] { 0x333, 0xDDD, 0x333 }

int[]	topGradientColors = new int[] { 0xAAA, 0xFFF, 0xAAA }

int	topStrokeWidth = 1

int	topStrokeColor = 0xFF333333

int	valueTextSize = 35

int	labelTextSize = 35

int	itemOffset = valueTextSize / 5

int	additionalItemHeight = 30

int	screenWidth = 0

int	screenHeight = 0

SimpleOnGestureListener	gestureListener

final int	MESSAGE_SCROLL = 0

final int	MESSAGE_JUSTIFY = 1

Handler	animationHandler

静态 Private 属性
static final int	SCROLLING_DURATION = 400

static final int	MIN_DELTA_FOR_SCROLLING = 1

static final int	ITEMS_TEXT_COLOR = 0xFF000000

static int[]	SHADOWS_COLORS = new int[] { 0xFF111111, 0x00AAAAAA, 0x00AAAAAA }

static final int	LABEL_OFFSET = 8

static final int	PADDING = 5

static final int	DEF_VISIBLE_ITEMS = 5

详细描述

作者: 还如一梦中

版本: v1.0

日期: ：2013-05-17 下午6:46:29

构造及析构函数说明

com.ab.view.wheel.AbWheelView.AbWheelView	(	Context	context,
		AttributeSet	attrs,
		int	defStyle
	)

inline

Constructor.

参数

context	the context
attrs	the attrs
defStyle	the def style

com.ab.view.wheel.AbWheelView.AbWheelView	(	Context	context,
		AttributeSet	attrs
	)

inline

Constructor.

参数

context	the context
attrs	the attrs

com.ab.view.wheel.AbWheelView.AbWheelView ( Context context )

inline

Constructor.

参数

context the context

成员函数说明

void com.ab.view.wheel.AbWheelView.addChangingListener ( AbOnWheelChangedListener listener )

inline

Adds wheel changing listener.

参数

listener the listener

void com.ab.view.wheel.AbWheelView.addScrollingListener ( AbOnWheelScrollListener listener )

inline

Adds wheel scrolling listener.

参数

listener the listener

String com.ab.view.wheel.AbWheelView.buildText ( boolean useCurrentValue )

inlineprivate

Builds text depending on current value.

参数

useCurrentValue the use current value

返回: the text

int com.ab.view.wheel.AbWheelView.calculateLayoutWidth	(	int	widthSize,
		int	mode
	)

inlineprivate

Calculates control width and creates text layouts.

参数

widthSize	the input layout width
mode	the layout mode

返回: the calculated control width

void com.ab.view.wheel.AbWheelView.clearMessages ( )

inlineprivate

Clears messages from queue.

void com.ab.view.wheel.AbWheelView.createLayouts	(	int	widthItems,
		int	widthLabel
	)

inlineprivate

Creates layouts.

参数

widthItems	width of items layout
widthLabel	width of label layout

void com.ab.view.wheel.AbWheelView.doScroll ( int delta )

inlineprivate

Scrolls the wheel.

参数

delta the scrolling value

void com.ab.view.wheel.AbWheelView.drawCenterRect ( Canvas canvas )

inlineprivate

Draws rect for current value.

参数

canvas the canvas for drawing

void com.ab.view.wheel.AbWheelView.drawItems ( Canvas canvas )

inlineprivate

Draws items.

参数

canvas the canvas for drawing

void com.ab.view.wheel.AbWheelView.drawShadows ( Canvas canvas )

inlineprivate

Draws shadows on top and bottom of control.

参数

canvas the canvas for drawing

void com.ab.view.wheel.AbWheelView.drawValue ( Canvas canvas )

inlineprivate

Draws value and label layout.

参数

canvas the canvas for drawing

void com.ab.view.wheel.AbWheelView.finishScrolling ( )

inlinepackage

Finishes scrolling.

AbWheelAdapter com.ab.view.wheel.AbWheelView.getAdapter ( )

inline

Gets wheel adapter.

返回: the adapter

int [] com.ab.view.wheel.AbWheelView.getCenterSelectGradientColors ( )

inline

Gets the center select gradient colors.

返回: the center select gradient colors

int com.ab.view.wheel.AbWheelView.getCenterSelectStrokeColor ( )

inline

Gets the center select stroke color.

返回: the center select stroke color

int com.ab.view.wheel.AbWheelView.getCenterSelectStrokeWidth ( )

inline

Gets the center select stroke width.

返回: the center select stroke width

int com.ab.view.wheel.AbWheelView.getCurrentItem ( )

inline

Gets current value.

返回: the current value

int com.ab.view.wheel.AbWheelView.getDesiredHeight ( Layout layout )

inlineprivate

Calculates desired height for layout.

参数

layout the source layout

返回: the desired layout height

int com.ab.view.wheel.AbWheelView.getItemHeight ( )

inlineprivate

Returns height of wheel item.

返回: the item height

String com.ab.view.wheel.AbWheelView.getLabel ( )

inline

Gets label.

返回: the label

int com.ab.view.wheel.AbWheelView.getMaxTextLength ( )

inlineprivate

Returns the max item length that can be present.

返回: the max length

String com.ab.view.wheel.AbWheelView.getTextItem ( int index )

inlineprivate

Returns text item by index.

参数

index the item index

返回: the item or null

int com.ab.view.wheel.AbWheelView.getVisibleItems ( )

inline

Gets count of visible items.

返回: the count of visible items

void com.ab.view.wheel.AbWheelView.initData ( Context context )

inlineprivate

Initializes class data.

参数

context the context

void com.ab.view.wheel.AbWheelView.initResourcesIfNecessary ( )

inlineprivate

Initializes resources.

void com.ab.view.wheel.AbWheelView.invalidateLayouts ( )

inlineprivate

Invalidates layouts.

boolean com.ab.view.wheel.AbWheelView.isCyclic ( )

inline

Tests if wheel is cyclic. That means before the 1st item there is shown the last one

返回: true if wheel is cyclic

void com.ab.view.wheel.AbWheelView.justify ( )

inlineprivate

Justifies wheel.

void com.ab.view.wheel.AbWheelView.notifyChangingListeners	(	int	oldValue,
		int	newValue
	)

inlineprotected

Notifies changing listeners.

参数

oldValue	the old wheel value
newValue	the new wheel value

void com.ab.view.wheel.AbWheelView.notifyScrollingListenersAboutEnd ( )

inlineprotected

Notifies listeners about ending scrolling.

void com.ab.view.wheel.AbWheelView.notifyScrollingListenersAboutStart ( )

inlineprotected

Notifies listeners about starting scrolling.

void com.ab.view.wheel.AbWheelView.onDraw ( Canvas canvas )

inlineprotected

描述：TODO.

版本: v1.0

参数

canvas the canvas

参见: android.view.View::onDraw(android.graphics.Canvas)

作者: : amsoft.cn

日期: ：2013-6-17 上午9:04:47

void com.ab.view.wheel.AbWheelView.onMeasure	(	int	widthMeasureSpec,
		int	heightMeasureSpec
	)

inlineprotected

描述：TODO.

版本: v1.0

参数

widthMeasureSpec	the width measure spec
heightMeasureSpec	the height measure spec

参见: android.view.View::onMeasure(int, int)

作者: : amsoft.cn

日期: ：2013-6-17 上午9:04:47

boolean com.ab.view.wheel.AbWheelView.onTouchEvent ( MotionEvent event )

inline

描述：TODO.

版本: v1.0

参数

event the event

返回: true, if successful

参见: android.view.View::onTouchEvent(android.view.MotionEvent)

作者: : amsoft.cn

日期: ：2013-6-17 上午9:04:47

void com.ab.view.wheel.AbWheelView.removeChangingListener ( AbOnWheelChangedListener listener )

inline

Removes wheel changing listener.

参数

listener the listener

void com.ab.view.wheel.AbWheelView.removeScrollingListener ( AbOnWheelScrollListener listener )

inline

Removes wheel scrolling listener.

参数

listener the listener

void com.ab.view.wheel.AbWheelView.scroll	(	int	itemsToScroll,
		int	time
	)

inline

Scroll the wheel.

参数

itemsToScroll	the items to scroll
time	scrolling duration

void com.ab.view.wheel.AbWheelView.setAdapter ( AbWheelAdapter adapter )

inline

Sets wheel adapter.

参数

adapter the new wheel adapter

void com.ab.view.wheel.AbWheelView.setAdditionalItemHeight ( int additionalItemHeight )

inline

Sets the additional item height.

参数

additionalItemHeight the new additional item height

void com.ab.view.wheel.AbWheelView.setCenterSelectDrawable ( Drawable centerSelectDrawable )

inline

描述：设置中间的选中层图片.

参数

centerSelectDrawable the new center select drawable

void com.ab.view.wheel.AbWheelView.setCenterSelectGradientColors ( int[] centerSelectGradientColors )

inline

Sets the center select gradient colors.

参数

centerSelectGradientColors the new center select gradient colors

void com.ab.view.wheel.AbWheelView.setCenterSelectStrokeColor ( int centerSelectStrokeColor )

inline

Sets the center select stroke color.

参数

centerSelectStrokeColor the new center select stroke color

void com.ab.view.wheel.AbWheelView.setCenterSelectStrokeWidth ( int centerSelectStrokeWidth )

inline

Sets the center select stroke width.

参数

centerSelectStrokeWidth the new center select stroke width

void com.ab.view.wheel.AbWheelView.setCurrentItem	(	int	index,
		boolean	animated
	)

inline

Sets the current item. Does nothing when index is wrong.

参数

index	the item index
animated	the animation flag

void com.ab.view.wheel.AbWheelView.setCurrentItem ( int index )

inline

Sets the current item w/o animation. Does nothing when index is wrong.

参数

index the item index

void com.ab.view.wheel.AbWheelView.setCyclic ( boolean isCyclic )

inline

Set wheel cyclic flag.

参数

isCyclic the flag to set

void com.ab.view.wheel.AbWheelView.setInterpolator ( Interpolator interpolator )

inline

Set the the specified scrolling interpolator.

参数

interpolator the interpolator

void com.ab.view.wheel.AbWheelView.setLabel ( String newLabel )

inline

Sets label.

参数

newLabel the label to set

void com.ab.view.wheel.AbWheelView.setLabelTextColor ( int labelTextColor )

inline

Sets the label text color.

参数

labelTextColor the new label text color

void com.ab.view.wheel.AbWheelView.setLabelTextSize ( int labelTextSize )

inline

Sets the label text size.

参数

labelTextSize the new label text size

void com.ab.view.wheel.AbWheelView.setNextMessage ( int message )

inlineprivate

Set next message to queue. Clears queue before.

参数

message the message to set

void com.ab.view.wheel.AbWheelView.setValueTextColor ( int valueTextColor )

inline

Sets the value text color.

参数

valueTextColor the new value text color

void com.ab.view.wheel.AbWheelView.setValueTextSize ( int textSize )

inline

Sets the value text size.

参数

textSize the new value text size

void com.ab.view.wheel.AbWheelView.setVisibleItems ( int count )

inline

Sets count of visible items.

参数

count the new count

void com.ab.view.wheel.AbWheelView.startScrolling ( )

inlineprivate

Starts scrolling.

类成员变量说明

AbWheelAdapter com.ab.view.wheel.AbWheelView.adapter = null

private

The adapter.

int com.ab.view.wheel.AbWheelView.additionalItemHeight = 30

private

中间覆盖条高度.

Handler com.ab.view.wheel.AbWheelView.animationHandler

private

初始值:

= new Handler() {
        public void handleMessage(Message msg) {
            scroller.computeScrollOffset();
            int currY = scroller.getCurrY();
            int delta = lastScrollY - currY;
            lastScrollY = currY;
            if (delta != 0) {
                doScroll(delta);
            }
            
            
            if (Math.abs(currY - scroller.getFinalY()) < MIN_DELTA_FOR_SCROLLING) {
                currY = scroller.getFinalY();
                scroller.forceFinished(true);
            }
            if (!scroller.isFinished()) {
                animationHandler.sendEmptyMessage(msg.what);
            } else if (msg.what == MESSAGE_SCROLL) {
                justify();
            } else {
                finishScrolling();
            }
        }
    }

The animation handler.

int [] com.ab.view.wheel.AbWheelView.bottomGradientColors = new int[] { 0x333, 0xDDD, 0x333 }

private

The bottom gradient colors.

GradientDrawable com.ab.view.wheel.AbWheelView.bottomShadow

private

The bottom shadow.

Drawable com.ab.view.wheel.AbWheelView.centerSelectDrawable

private

中间覆盖条的背景图.

int [] com.ab.view.wheel.AbWheelView.centerSelectGradientColors = new int[] {0x70222222,0x70222222, 0x70EEEEEE}

private

中间覆盖条的颜色，如果没有设置centerDrawable时才生效.

int com.ab.view.wheel.AbWheelView.centerSelectStrokeColor = 0x70333333

private

The center select stroke color.

int com.ab.view.wheel.AbWheelView.centerSelectStrokeWidth = 1

private

The center select stroke width.

List<AbOnWheelChangedListener> com.ab.view.wheel.AbWheelView.changingListeners = new LinkedList<AbOnWheelChangedListener>()

private

The changing listeners.

int com.ab.view.wheel.AbWheelView.currentItem = 0

private

The current item.

final int com.ab.view.wheel.AbWheelView.DEF_VISIBLE_ITEMS = 5

staticprivate

Default count of visible items.

GestureDetector com.ab.view.wheel.AbWheelView.gestureDetector

private

The gesture detector.

SimpleOnGestureListener com.ab.view.wheel.AbWheelView.gestureListener

private

初始值:

= new SimpleOnGestureListener() {
        public boolean onDown(MotionEvent e) {
            if (isScrollingPerformed) {
                scroller.forceFinished(true);
                clearMessages();
                return true;
            }
            return false;
        }
        public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
            startScrolling();
            doScroll((int) -distanceY);
            return true;
        }
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
            lastScrollY = currentItem * getItemHeight() + scrollingOffset;
            int maxY = isCyclic ? 0x7FFFFFFF : adapter.getItemsCount() * getItemHeight();
            int minY = isCyclic ? -maxY : 0;
            scroller.fling(0, lastScrollY, 0, (int) -velocityY / 2, 0, 0, minY, maxY);
            setNextMessage(MESSAGE_SCROLL);
            return true;
        }
    }

The gesture listener.

boolean com.ab.view.wheel.AbWheelView.isCyclic = false

package

The is cyclic.

boolean com.ab.view.wheel.AbWheelView.isScrollingPerformed

private

The is scrolling performed.

int com.ab.view.wheel.AbWheelView.itemHeight = 0

private

The item height.

int com.ab.view.wheel.AbWheelView.itemOffset = valueTextSize / 5

private

Top and bottom items offset.

final int com.ab.view.wheel.AbWheelView.ITEMS_TEXT_COLOR = 0xFF000000

staticprivate

Items text color.

StaticLayout com.ab.view.wheel.AbWheelView.itemsLayout

private

The items layout.

TextPaint com.ab.view.wheel.AbWheelView.itemsPaint

private

The items paint.

int com.ab.view.wheel.AbWheelView.itemsWidth = 0

private

The items width.

String com.ab.view.wheel.AbWheelView.label

private

The label.

final int com.ab.view.wheel.AbWheelView.LABEL_OFFSET = 8

staticprivate

Label offset.

StaticLayout com.ab.view.wheel.AbWheelView.labelLayout

private

The label layout.

TextPaint com.ab.view.wheel.AbWheelView.labelPaint

private

The label paint.

int com.ab.view.wheel.AbWheelView.labelTextColor = 0xF0000000

private

Current label text color.

int com.ab.view.wheel.AbWheelView.labelTextSize = 35

private

标签的文字大小.

int com.ab.view.wheel.AbWheelView.labelWidth = 0

private

The label width.

int com.ab.view.wheel.AbWheelView.lastScrollY

private

The last scroll y.

Context com.ab.view.wheel.AbWheelView.mContext = null

private

The m context.

final int com.ab.view.wheel.AbWheelView.MESSAGE_JUSTIFY = 1

private

The message justify.

final int com.ab.view.wheel.AbWheelView.MESSAGE_SCROLL = 0

private

The message scroll.

final int com.ab.view.wheel.AbWheelView.MIN_DELTA_FOR_SCROLLING = 1

staticprivate

Minimum delta for scrolling.

final int com.ab.view.wheel.AbWheelView.PADDING = 5

staticprivate

Left and right padding value.

int com.ab.view.wheel.AbWheelView.screenHeight = 0

private

屏幕高度.

int com.ab.view.wheel.AbWheelView.screenWidth = 0

private

屏幕宽度.

Scroller com.ab.view.wheel.AbWheelView.scroller

private

The scroller.

final int com.ab.view.wheel.AbWheelView.SCROLLING_DURATION = 400

staticprivate

Scrolling duration.

List<AbOnWheelScrollListener> com.ab.view.wheel.AbWheelView.scrollingListeners = new LinkedList<AbOnWheelScrollListener>()

private

The scrolling listeners.

int com.ab.view.wheel.AbWheelView.scrollingOffset

private

The scrolling offset.

int [] com.ab.view.wheel.AbWheelView.SHADOWS_COLORS = new int[] { 0xFF111111, 0x00AAAAAA, 0x00AAAAAA }

staticprivate

Top and bottom shadows colors.

int [] com.ab.view.wheel.AbWheelView.topGradientColors = new int[] { 0xAAA, 0xFFF, 0xAAA }

private

The top gradient colors.

GradientDrawable com.ab.view.wheel.AbWheelView.topShadow

private

Shadows drawables.

int com.ab.view.wheel.AbWheelView.topStrokeColor = 0xFF333333

private

The top stroke color.

int com.ab.view.wheel.AbWheelView.topStrokeWidth = 1

private

The top stroke width.

StaticLayout com.ab.view.wheel.AbWheelView.valueLayout

private

The value layout.

TextPaint com.ab.view.wheel.AbWheelView.valuePaint

private

The value paint.

int com.ab.view.wheel.AbWheelView.valueTextColor = 0xF0000000

private

Current value.

int com.ab.view.wheel.AbWheelView.valueTextSize = 35

private

值的文字大小.

int com.ab.view.wheel.AbWheelView.visibleItems = DEF_VISIBLE_ITEMS

private

The visible items.

该类的文档由以下文件生成:

src/com/ab/view/wheel/AbWheelView.java

类

Public 成员函数

Protected 成员函数

包函数

包属性

Private 成员函数

Private 属性

静态 Private 属性

详细描述

构造及析构函数说明

成员函数说明

类成员变量说明