程序包 ohos.agp.components

类 DirectionalLayout

java.lang.Object

ohos.agp.components.Component

ohos.agp.components.ComponentContainer

ohos.agp.components.DirectionalLayout

所有已实现的接口:

ComponentParent

直接已知子类:

NestedScrollCoordinator, Picker, RadioContainer, SearchBar

public class DirectionalLayout
extends ComponentContainer

A directional layout in which controls are arranged horizontally or vertically.

Component.HORIZONTAL means arranging controls horizontally and Component.VERTICAL means arranging controls vertically.

从以下版本开始:

3

嵌套类概要

嵌套类

限定符和类型	类	说明
static class	DirectionalLayout.LayoutConfig	Specifies layout parameters of a child control.

从类继承的嵌套类/接口 ohos.agp.components.Component

Component.BindStateChangedListener, Component.CanAcceptScrollListener, Component.ClickedListener, Component.ComponentStateChangedListener, Component.ContourRefreshedListener, Component.DefSpeechEventListener, Component.DoubleClickedListener, Component.DragFeedbackProvider, Component.DraggedListener, Component.DrawTask, Component.EditEventListener, Component.EstimateSizeListener, Component.EstimateSpec, Component.FadeEffectEnum, Component.FocusChangedListener, Component.ForwardHoverListener, Component.ForwardTouchListener, Component.GestureType, Component.HoverEventListener, Component.KeyEventListener, Component.LayoutDirection, Component.LayoutRefreshedListener, Component.LongClickedListener, Component.MeasureSpec, Component.MouseEventListener, Component.MousePointerStyleListener, Component.OnDragListener, Component.RotationEventListener, Component.ScaledListener, Component.ScrolledListener, Component.ShadowDevice, Component.ShadowMode, Component.ShadowSize, Component.SpeechEventListener, Component.TouchEventListener, Component.UnconsumedKeyEventListener, Component.VoiceEvent

从类继承的嵌套类/接口 ohos.agp.components.ComponentContainer

ComponentContainer.ArrangeListener

字段概要

从类继承的字段 ohos.agp.components.Component

ACCESSIBILITY_ADAPTABLE, ACCESSIBILITY_DISABLE, ACCESSIBILITY_ENABLE, AXIS_X, AXIS_Y, CONTOUR_BACKGROUND, CONTOUR_BORDER, CONTOUR_PADDING_BORDER, DEFAULT_SCALE, DRAG_DOWN, DRAG_HORIZONTAL, DRAG_HORIZONTAL_VERTICAL, DRAG_LEFT, DRAG_RIGHT, DRAG_UP, DRAG_VERTICAL, EVENT_TYPE_COMPONENT_ACCESSIBILITY_FOCUSED, EVENT_TYPE_COMPONENT_ACCESSIBILITY_FOCUSED_CLEAR, EVENT_TYPE_COMPONENT_CLICKED, EVENT_TYPE_COMPONENT_FOCUSED, EVENT_TYPE_COMPONENT_LONG_CLICKED, EVENT_TYPE_COMPONENT_SCROLLED, EVENT_TYPE_COMPONENT_SELECTED, EVENT_TYPE_COMPONENT_TEXT_UPDATE, EVENT_TYPE_NOTICE, EVENT_TYPE_NOTIFICATION_STATE_UPDATE, EVENT_TYPE_TOAST_SHOW, EVENT_TYPE_WINDOW_STATE_UPDATE, FOCUS_ADAPTABLE, FOCUS_DISABLE, FOCUS_ENABLE, FOCUS_NEXT, FOCUS_PREVIOUS, FOCUS_SIDE_BOTTOM, FOCUS_SIDE_LEFT, FOCUS_SIDE_RIGHT, FOCUS_SIDE_TOP, HIDE, HORIZONTAL, ID_DEFAULT, INHERITED_MODE, INVISIBLE, mBackgroundElement, mCanvasForTaskOverContent, mCanvasForTaskUnderContent, mComponentParent, mContext, mDrawTaskOverContent, mDrawTaskUnderContent, mEstimateSizeListener, mForegroundElement, mForwardHoverListener, mHoverEventListener, mKeyEventListener, mMouseEventListener, mPosition, mRotationEventListener, mShadowElement, mUnconsumedKeyEventListener, OVAL_MODE, OVAL_SCROLL_BAR_MODE, POSITION_X_INDEX, POSITION_Y_INDEX, RECT_MODE, RECT_SCROLL_BAR_MODE, SCROLL_AUTO_STAGE, SCROLL_IDLE_STAGE, SCROLL_NORMAL_STAGE, UNSPECIFIED_SCROLL_BAR_MODE, VERTICAL, VISIBLE

从类继承的字段 ohos.agp.components.ComponentContainer

FOCUS_CHILDREN_FIRST, FOCUS_CHILDREN_HIDE, FOCUS_PARENT_FIRST, mArrangeListener

构造器概要

构造器

构造器	说明
DirectionalLayout(Context context)	Default constructor used to create a DirectionalLayout instance by using the default attribute set and style.
DirectionalLayout(Context context, AttrSet attrSet)	A constructor used to create a DirectionalLayout instance by using specified attribute set and default style after the XML file is parsed.
DirectionalLayout(Context context, AttrSet attrSet, String styleName)	A constructor used to create a DirectionalLayout instance by using specified attribute set and specified style after the XML file is parsed.

方法概要

限定符和类型	方法	说明
ComponentContainer.LayoutConfig	createLayoutConfig(Context context, AttrSet attrSet)	Creates layout parameters using the attribute set of a child component.
int	getAlignment()	Obtains the child component alignment.
int	getOrientation()	Obtains the direction in which controls are arranged in the directional layout.
float	getTotalWeight()	Obtains the total weight of all child controls.
boolean	isLayoutBaselined()	Checks whether components in the layout are aligned on their baseline or not.
void	setAlignment(int alignment)	Sets the child component alignment in the available space (if any) of the container.
void	setLayoutBaselined(boolean baselined)	Defines whether views in the layout are aligned on their baseline or not.
void	setOrientation(int orientation)	Specifies the direction in which controls are arranged in the directional layout.
void	setTotalWeight(float totalWeight)	Configures the total weight of all child controls.
ComponentContainer.LayoutConfig	verifyLayoutConfig(ComponentContainer.LayoutConfig config)	Verifies layout parameters based on the current layout type.

从类继承的方法 ohos.agp.components.Component

addDrawTask, addDrawTask, addScrolledListener, announceAccessibility, arrange, bindCornerMark, callOnClick, canScroll, clearFocus, createAnimatorProperty, disableFadeEffect, draw, enableCornerMark, enableFadeEffect, enableSaveState, enableScrollBar, estimateSize, executeDoubleClick, executeLongClick, findFocus, findNextFocusableComponent, findRequestNextFocus, getAccessibility, getAccessibilityDescription, getAlpha, getAltitude, getBackgroundElement, getBaseLine, getBottom, getBoundaryFadeEffectBottomRate, getBoundaryFadeEffectLeftRate, getBoundaryFadeEffectRightRate, getBoundaryFadeEffectTopRate, getCenterZoomFactor, getCentralScrollMode, getClickedListener, getClipEnabled, getComponentDescription, getComponentMinSize, getComponentParent, getComponentPosition, getComponentSize, getComponentStateChangedListener, getComponentTreeObserver, getContentEnable, getContentPosition, getContentPositionX, getContentPositionY, getContext, getContour, getContourRefreshedListener, getCornerMark, getDragAcceptAngle, getDraggedListener, getEditEventListener, getEstimatedHeight, getEstimatedWidth, getFadeEffectBoundaryWidth, getFadeEffectColor, getFocusable, getFocusBorderEnable, getFocusBorderPadding, getFocusBorderRadius, getFocusBorderWidth, getForegroundElement, getForegroundGravity, getForwardHoverListener, getForwardTouchListener, getGesturePriority, getHeight, getHorizontalPadding, getHorizontalPosition, getHoverEventListener, getId, getKeyEventListener, getLayoutConfig, getLayoutDirection, getLayoutDirectionResolved, getLayoutRefreshedListener, getLeft, getLocationOnScreen, getMarginBottom, getMarginLeft, getMarginRight, getMargins, getMarginsLeftAndRight, getMarginsTopAndBottom, getMarginTop, getMatrix, getMinHeight, getMinWidth, getMode, getModeResolved, getMouseEventListener, getMousePointerStyleListener, getName, getPadding, getPaddingBottom, getPaddingEnd, getPaddingLeft, getPaddingRight, getPaddingStart, getPaddingTop, getPivot, getPivotX, getPivotY, getResourceManager, getRight, getRotation, getRotationEventListener, getRotationSensitivity, getScale, getScaledListener, getScaleX, getScaleY, getScrollbarBackgroundColor, getScrollbarColor, getScrollbarFadingDelay, getScrollbarFadingDuration, getScrollBarMode, getScrollbarRadius, getScrollbarRoundRect, getScrollbarStartAngle, getScrollbarSweepAngle, getScrollbarThickness, getScrollState, getScrollValue, getSelfVisibleRect, getShadowColor, getSpeechEventListener, getTag, getTop, getTouchEventListener, getTransitionSymbol, getTranslation, getTranslationX, getTranslationY, getTranslationZ, getUserNextFocus, getVerticalPadding, getVerticalPosition, getVisibility, getVisibleRectOnScreen, getWidth, getWindowVisibleRect, hasFocus, hasFocusedEffect, hasOverlaps, hideFocusBorder, invalidate, isBoundaryFadeEffectEnable, isBoundToWindow, isClickable, isClipToContourEnabled, isComponentDisplayed, isEnabled, isFadeEffected, isFocusable, isFocused, isIdentityMatrix, isLongClickOn, isPressed, isRtl, isSaveStateEnabled, isScrollbarFadingOn, isScrollBarOn, isScrollbarOverlapEnabled, isSelected, isSoundEnable, isTouchFocusable, isVibrationEffectEnabled, notifyAccessibility, onAttributeConfigChanged, onRestoreState, onRtlChanged, onSaveState, performScale, playSound, postLayout, refreshContour, release, removeBindStateChangedListener, removeScrolledListener, requestFocus, requestForceForwardTouchEvent, restoreComponentTreeState, saveComponentTreeState, scrollBy, scrollTo, setAccessibility, setAccessibilityDescription, setAlpha, setAltitude, setBackground, setBindStateChangedListener, setBottom, setBoundaryFadeEffectEnable, setCanAcceptScrollListener, setCenterZoomFactor, setCentralScrollMode, setClickable, setClickedListener, setClipEnabled, setClipToContourEnabled, setComponentDescription, setComponentMinSize, setComponentPosition, setComponentPosition, setComponentSize, setComponentStateChangedListener, setContentEnable, setContentPosition, setContentPositionX, setContentPositionY, setContour, setContourRefreshedListener, setDoubleClickedListener, setDragAcceptAngle, setDraggedListener, setEditEventListener, setEnabled, setEstimatedSize, setEstimateSizeListener, setFadeEffectBoundaryWidth, setFadeEffectColor, setFocusable, setFocusBorderEnable, setFocusBorderPadding, setFocusBorderRadius, setFocusBorderRadius, setFocusBorderWidth, setFocusChangedListener, setFocusedEffect, setForeground, setForegroundGravity, setForwardHoverListener, setForwardTouchListener, setGesturePriority, setHeight, setHorizontalPadding, setHorizontalPosition, setHoverEventListener, setId, setKeyEventListener, setLayoutConfig, setLayoutDirection, setLayoutRefreshedListener, setLeft, setLongClickable, setLongClickedListener, setMarginBottom, setMarginLeft, setMarginRight, setMarginsLeftAndRight, setMarginsTopAndBottom, setMarginTop, setMinHeight, setMinWidth, setMode, setMouseEventListener, setMousePointerStyleListener, setName, setOnDragListener, setPadding, setPaddingBottom, setPaddingLeft, setPaddingRelative, setPaddingRight, setPaddingTop, setPivot, setPivot, setPivotX, setPivotY, setPosition, setPositionX, setPositionY, setPressState, setRight, setRotation, setRotationEventListener, setRotationSensitivity, setScale, setScaledListener, setScaleX, setScaleY, setScrollbarBackgroundColor, setScrollbarColor, setScrollbarFadingDelay, setScrollbarFadingDuration, setScrollbarFadingEnabled, setScrollBarMode, setScrollbarOverlapEnabled, setScrollbarRadius, setScrollbarRoundRect, setScrollbarStartAngle, setScrollbarSweepAngle, setScrollbarThickness, setScrolledListener, setSelected, setShadowColor, setShadowStyle, setSoundEnable, setSpeechEventListener, setTag, setTop, setTouchEventListener, setTouchFocusable, setTransitionSymbol, setTranslation, setTranslationX, setTranslationY, setTranslationZ, setUnconsumedKeyEventListener, setUserNextFocus, setVerticalPadding, setVerticalPosition, setVibrationEffectEnabled, setVisibility, setWidth, showFocusBorder, simulateClick, simulateDrag, startDragAndDrop, subscribeVoiceEvents, unsubscribeVoiceEvents

从类继承的方法 ohos.agp.components.ComponentContainer

addComponent, addComponent, addComponent, addComponent, addComponent, dispatchRestoreState, dispatchSaveState, findComponentById, findComponentHolderById, getAutoLayout, getChildCount, getChildIndex, getComponentAt, getComponentTransition, getFocusOrder, getLayoutManager, informConfigurationChanged, isClipToChildBoundsEnabled, isClipToPaddingBoundsEnabled, isTouchEventSplitable, moveChildToFront, onDrag, removeAllComponents, removeComponent, removeComponentAt, removeComponentById, removeComponents, setArrangeListener, setAutoLayout, setAutoLayout, setClipToChildBoundsEnabled, setClipToPaddingBoundsEnabled, setComponentTransition, setFocusOrder, setLayoutManager, setTouchEventSplitable

从接口继承的方法 ohos.agp.components.ComponentParent

getComponentParent, postLayout

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

DirectionalLayout

public DirectionalLayout(Context context)

Default constructor used to create a DirectionalLayout instance by using the default attribute set and style.

参数:

context - Indicates the application context.

DirectionalLayout

public DirectionalLayout(Context context,
                         AttrSet attrSet)

A constructor used to create a DirectionalLayout instance by using specified attribute set and default style after the XML file is parsed.

参数:

context - Indicates the application context.

attrSet - Indicates the attribute set to be used.

DirectionalLayout

public DirectionalLayout(Context context,
                         AttrSet attrSet,
                         String styleName)

A constructor used to create a DirectionalLayout instance by using specified attribute set and specified style after the XML file is parsed.

参数:

context - Indicates the application context.

attrSet - Indicates the attribute set to be used.

styleName - Indicates the style name to use.

方法详细资料

setAlignment

public void setAlignment(int alignment)

Sets the child component alignment in the available space (if any) of the container. If the child components are laid out vertically, this method sets how they will be aligned in the vertical space. If the child components are laid out horizontally, this method sets how they will be aligned in the horizontal space.

参数:

alignment - Indicates the alignment of the child components.

从以下版本开始:

4

另请参阅:

LayoutAlignment

setOrientation

public void setOrientation(int orientation)

Specifies the direction in which controls are arranged in the directional layout.

参数:

orientation - Specifies the direction in which controls are arranged. Component.HORIZONTAL indicates that controls are arranged horizontally; Component.VERTICAL indicates that controls are arranged vertically.

getAlignment

public int getAlignment()

Obtains the child component alignment.

返回:

Returns the alignment of the child components.

从以下版本开始:

4

另请参阅:

setAlignment(int), LayoutAlignment

getOrientation

public int getOrientation()

Obtains the direction in which controls are arranged in the directional layout.

返回:

Returns the direction in which controls are arranged. Component.HORIZONTAL indicates that controls are arranged horizontally; Component.VERTICAL indicates that controls are arranged vertically.

setTotalWeight

public void setTotalWeight(float totalWeight)

Configures the total weight of all child controls.

参数:

totalWeight - Specifies the total weight of all child controls.

从以下版本开始:

4

getTotalWeight

public float getTotalWeight()

Obtains the total weight of all child controls.

返回:

Returns the total weight of all child controls.

从以下版本开始:

4

verifyLayoutConfig

public ComponentContainer.LayoutConfig verifyLayoutConfig(ComponentContainer.LayoutConfig config)

Verifies layout parameters based on the current layout type.

指定者:

verifyLayoutConfig 在接口中 ComponentParent

覆盖:

verifyLayoutConfig 在类中 ComponentContainer

参数:

config - Indicates a group of layout parameters to be converted into a ComponentContainer instance.

返回:

Returns the LayoutConfig instance, which represents the layout parameters.

createLayoutConfig

public ComponentContainer.LayoutConfig createLayoutConfig(Context context,
                                                          AttrSet attrSet)

Creates layout parameters using the attribute set of a child component.

覆盖:

createLayoutConfig 在类中 ComponentContainer

参数:

context - Indicates the application context.

attrSet - Indicates the attribute set.

返回:

Returns the layout parameters created.

setLayoutBaselined

public void setLayoutBaselined(boolean baselined)

Defines whether views in the layout are aligned on their baseline or not.

This API may cause components with different baseline to display differently depending on their gravity.

参数:

baselined - Specifies whether views in the layout are aligned on their baseline. Set it to true if you want to align views on their baseline; set it to false otherwise. The default value is true.

从以下版本开始:

7

isLayoutBaselined

public boolean isLayoutBaselined()

Checks whether components in the layout are aligned on their baseline or not.

返回:

Returns True if components in the layout are aligned on their baseline; returns False otherwise.

从以下版本开始:

7