native_interface_accessibility.h
Overview
Declares the APIs for accessing Native Accessibility features.
File to include: <arkui/native_interface_accessibility.h>
Library: libace_ndk.z.so
System capability: SystemCapability.ArkUI.ArkUI.Full
Since: 13
Related module: ArkUI_Accessibility
Sample: AccessibilityCapi
Summary
Structs
| Name | typedef Keyword | Description |
|---|---|---|
| ArkUI_AccessibleAction | ArkUI_AccessibleAction | Defines a struct for accessibility actions. |
| ArkUI_AccessibleRect | ArkUI_AccessibleRect | Provides the bounding rectangle coordinates of the node. |
| ArkUI_AccessibleRangeInfo | ArkUI_AccessibleRangeInfo | Configures the current value, minimum value, and maximum value for specific components including Slider, Rating, and Progress. |
| ArkUI_AccessibleGridInfo | ArkUI_AccessibleGridInfo | Configures the number of rows, number of columns, and selection mode for specific components including List, Flex, Select, and Swiper. |
| ArkUI_AccessibleGridItemInfo | ArkUI_AccessibleGridItemInfo | Configures attributes for specific components including List, Flex, Select, and Swiper. |
| ArkUI_AccessibilityProviderCallbacks | ArkUI_AccessibilityProviderCallbacks | Defines a struct for third-party accessibility provider callback functions, which third-party platforms need to implement. These functions are registered with the system side through OH_ArkUI_AccessibilityProviderRegisterCallback. |
| ArkUI_AccessibilityProviderCallbacksWithInstance | ArkUI_AccessibilityProviderCallbacksWithInstance | Defines the callback function struct for third-party accessibility providers in multi-instance scenarios. These functions should be implemented by third-party platforms and registered with the system using OH_ArkUI_AccessibilityProviderRegisterCallbackWithInstance. |
| ArkUI_AccessibilityElementInfo | ArkUI_AccessibilityElementInfo | Provides accessibility node information for accessibility services and assistive applications (such as screen readers). |
| ArkUI_AccessibilityEventInfo | ArkUI_AccessibilityEventInfo | Describes the accessibility event information. After a component completes an action requested by an accessibility service or application, it needs to send a success event to confirm the operation. |
| ArkUI_AccessibilityProvider | ArkUI_AccessibilityProvider | Defines a third-party accessibility provider to implement callback functions. |
| ArkUI_AccessibilityActionArguments | ArkUI_AccessibilityActionArguments | Sets the parameters of accessibility actions. |
| ArkUI_AccessibilityElementInfoList | ArkUI_AccessibilityElementInfoList | Provides a list instance of the encapsulated ArkUI_AccessibilityElementInfo. |
| ArkUI_Node* | ArkUI_NodeHandle | Defines the pointer to an ArkUI native component object. Since: 23 |
Enums
| Name | typedef Keyword | Description |
|---|---|---|
| ArkUI_Accessibility_ActionType | ArkUI_Accessibility_ActionType | Enumerates accessibility action types. |
| ArkUI_AccessibilityEventType | ArkUI_AccessibilityEventType | Enumerates accessibility event types. |
| ArkUI_AcessbilityErrorCode | ArkUI_AcessbilityErrorCode | Enumerates accessibility error codes. |
| ArkUI_AccessibilitySearchMode | ArkUI_AccessibilitySearchMode | Enumerates accessibility search modes. |
| ArkUI_AccessibilityFocusType | ArkUI_AccessibilityFocusType | Enumerates accessibility focus types. |
| ArkUI_AccessibilityFocusMoveDirection | ArkUI_AccessibilityFocusMoveDirection | Enumerates accessibility focus movement directions. |
Functions
Enum Description
ArkUI_Accessibility_ActionType
enum ArkUI_Accessibility_ActionType
Description
Enumerates accessibility action types.
Since: 13
| Value | Description |
|---|---|
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_INVALID = 0 | Invalid value. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_CLICK = 0x00000010 | Triggers the component's click event handling. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_LONG_CLICK = 0x00000020 | Triggers the component's long-click event handling. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_GAIN_ACCESSIBILITY_FOCUS = 0x00000040 | Requests accessibility focus for the component. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_CLEAR_ACCESSIBILITY_FOCUS = 0x00000080 | Clears accessibility focus from the component. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_SCROLL_FORWARD = 0x00000100 | Initiates forward scrolling in scrollable containers. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_SCROLL_BACKWARD = 0x00000200 | Initiates backward scrolling in scrollable containers. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_COPY = 0x00000400 | Copies the current text selection. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_PASTE = 0x00000800 | Pastes content to the text component. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_CUT = 0x00001000 | Cuts the current text selection to the pasteboard. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_SELECT_TEXT = 0x00002000 | Selects a range of text within an editable area in a text component. Selects a range of text within an editable area by using ArkUI_AccessibilityActionArguments and setting selectTextBegin (indicates the start position of the selection), selectTextEnd (indicates the end position of the selection), and selectTextInForWard (true indicates to select text forward, and false indicates to select text backward). |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_SET_TEXT = 0x00004000 | Sets the text content of the text component. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_SET_CURSOR_POSITION = 0x00100000 | Sets the cursor position where the text can be entered for the text component. This API is used together with ArkUI_AccessibilityActionArguments. |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_NEXT_HTML_ITEM = 0x02000000 | Moves focus to the next focusable component. Note: "HTML" indicates the web-like navigation capability, not actual web elements. This attribute is available only when the findNextFocusAccessibilityNode capability is implemented. Since: 15 |
| ARKUI_ACCESSIBILITY_NATIVE_ACTION_TYPE_PREVIOUS_HTML_ITEM = 0x04000000 | Moves focus to the previous focusable component. Note: "HTML" indicates the web-like navigation capability, not actual web elements. This API requires implementation of findNextFocusAccessibilityNode. Since: 15 |
ArkUI_AccessibilityEventType
enum ArkUI_AccessibilityEventType
Description
Enumerates accessibility event types.
Since: 13
| Value | Description |
|---|---|
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_INVALID = 0 | Invalid value. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_CLICKED = 0x00000001 | Click event, sent after the UI component responds. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_LONG_CLICKED = 0x00000002 | Long-click event, sent after the UI component responds. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_SELECTED = 0x00000004 | Selection event, sent after the UI component responds. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_TEXT_UPDATE = 0x00000010 | Text update event, sent when text is updated. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_PAGE_STATE_UPDATE = 0x00000020 | Page state update event, sent on page navigation, switching, resizing, or movement. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_PAGE_CONTENT_UPDATE = 0x00000800 | Page content update event, sent when the page content changes. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_SCROLLED = 0x000001000 | Scroll event, sent when scrolling occurs on scrollable components. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_ACCESSIBILITY_FOCUSED = 0x00008000 | Accessibility focus event, sent after the UI component receives focus. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_ACCESSIBILITY_FOCUS_CLEARED = 0x00010000 | Accessibility focus cleared event, sent after the UI component loses focus. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_REQUEST_ACCESSIBILITY_FOCUS = 0x02000000 | Event to actively requests focus for the specified node. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_PAGE_OPEN = 0x20000000 | Page open event reported by the UI component. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_PAGE_CLOSE = 0x08000000 | Page close event reported by the UI component. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_ANNOUNCE_FOR_ACCESSIBILITY = 0x10000000 | Announcement event, indicating a request to proactively announce specified content. |
| ARKUI_ACCESSIBILITY_NATIVE_EVENT_TYPE_FOCUS_NODE_UPDATE = 0x10000001 | Focus update event, used in the focus update scenarios. |
ArkUI_AcessbilityErrorCode
enum ArkUI_AcessbilityErrorCode
Description
Enumerates accessibility error codes.
Since: 13
| Value | Description |
|---|---|
| ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL = 0 | The operation is successful. |
| ARKUI_ACCESSIBILITY_NATIVE_RESULT_FAILED = -1 | The operation failed. |
| ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER = -2 | Invalid parameter. |
| ARKUI_ACCESSIBILITY_NATIVE_RESULT_OUT_OF_MEMORY = -3 | Insufficient memory. |
ArkUI_AccessibilitySearchMode
enum ArkUI_AccessibilitySearchMode
Description
Enumerates accessibility search modes.
Since: 13
| Value | Description |
|---|---|
| ARKUI_ACCESSIBILITY_NATIVE_SEARCH_MODE_PREFETCH_CURRENT = 0 | Searches the current node. |
| ARKUI_ACCESSIBILITY_NATIVE_SEARCH_MODE_PREFETCH_PREDECESSORS = 1 << 0 | Searches parent nodes. |
| ARKUI_ACCESSIBILITY_NATIVE_SEARCH_MODE_PREFETCH_SIBLINGS = 1 << 1 | Searches sibling nodes. |
| ARKUI_ACCESSIBILITY_NATIVE_SEARCH_MODE_PREFETCH_CHILDREN = 1 << 2 | Searches immediate child nodes. |
| ARKUI_ACCESSIBILITY_NATIVE_SEARCH_MODE_PREFETCH_RECURSIVE_CHILDREN = 1 << 3 | Searches all child nodes. |
ArkUI_AccessibilityFocusType
enum ArkUI_AccessibilityFocusType
Description
Enumerates accessibility focus types.
Since: 13
| Value | Description |
|---|---|
| ARKUI_ACCESSIBILITY_NATIVE_FOCUS_TYPE_INVALID = -1 | Invalid value. |
| ARKUI_ACCESSIBILITY_NATIVE_FOCUS_TYPE_INPUT = 1 << 0 | Input focus type. |
| ARKUI_ACCESSIBILITY_NATIVE_FOCUS_TYPE_ACCESSIBILITY = 1 << 1 | Accessibility focus type. |
ArkUI_AccessibilityFocusMoveDirection
enum ArkUI_AccessibilityFocusMoveDirection
Description
Enumerates accessibility focus movement directions.
Since: 13
| Value | Description |
|---|---|
| ARKUI_ACCESSIBILITY_NATIVE_DIRECTION_INVALID = 0 | Invalid value. |
| ARKUI_ACCESSIBILITY_NATIVE_DIRECTION_UP = 0x00000001 | Moves focus up. |
| ARKUI_ACCESSIBILITY_NATIVE_DIRECTION_DOWN = 0x00000002 | Moves focus down. |
| ARKUI_ACCESSIBILITY_NATIVE_DIRECTION_LEFT = 0x00000004 | Moves focus left. |
| ARKUI_ACCESSIBILITY_NATIVE_DIRECTION_RIGHT = 0x00000008 | Moves focus right. |
| ARKUI_ACCESSIBILITY_NATIVE_DIRECTION_FORWARD = 0x00000010 | Moves focus to the next focusable node (relative to the reference node in query). |
| ARKUI_ACCESSIBILITY_NATIVE_DIRECTION_BACKWARD = 0x00000020 | Moves focus to the previous focusable node (relative to the reference node in query). |
Function Description
OH_ArkUI_AccessibilityProviderRegisterCallback()
int32_t OH_ArkUI_AccessibilityProviderRegisterCallback(ArkUI_AccessibilityProvider* provider, ArkUI_AccessibilityProviderCallbacks* callbacks)
Description
Defines a struct for third-party accessibility provider callback functions, which third-party platforms need to implement. These functions are registered with the system side through OH_ArkUI_AccessibilityProviderRegisterCallback.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityProvider* provider | Pointer to an ArkUI_AccessibilityProvider instance. |
| ArkUI_AccessibilityProviderCallbacks* callbacks | Pointer to an ArkUI_AccessibilityProviderCallbacks struct that contains the set of callback functions implemented by the third-party platform. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityProviderRegisterCallbackWithInstance()
int32_t OH_ArkUI_AccessibilityProviderRegisterCallbackWithInstance(const char* instanceId, ArkUI_AccessibilityProvider* provider, ArkUI_AccessibilityProviderCallbacksWithInstance* callbacks)
Description
Registers accessibility provider callback functions for third-party platforms in multi-instance scenarios.
Since: 15
Parameters
| Name | Description |
|---|---|
| const char* instanceId | Pointer to the instance ID for third-party platform integration, used to distinguish between different instances in multi-instance scenarios. The ID is assigned and maintained by the third-party platform. |
| ArkUI_AccessibilityProvider* provider | Handle to the third-party platform provider. |
| ArkUI_AccessibilityProviderCallbacksWithInstance* callbacks | Pointer to an ArkUI_AccessibilityProviderCallbacksWithInstance instance. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_SendAccessibilityAsyncEvent()
void OH_ArkUI_SendAccessibilityAsyncEvent(ArkUI_AccessibilityProvider* provider, ArkUI_AccessibilityEventInfo* eventInfo, void (*callback)(int32_t errorCode))
Description
Proactively sends an event to notify the accessibility service.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityProvider* provider | Handle to the third-party platform provider. |
| ArkUI_AccessibilityEventInfo* eventInfo | Pointer to the accessibility event information. |
| void (*callback)(int32_t errorCode) | Callback that receives the asynchronous operation result. |
OH_ArkUI_AddAndGetAccessibilityElementInfo()
ArkUI_AccessibilityElementInfo* OH_ArkUI_AddAndGetAccessibilityElementInfo(ArkUI_AccessibilityElementInfoList* list)
Description
Adds an ArkUI_AccessibilityElementInfo member to the specified list and returns the ArkUI_AccessibilityElementInfo struct.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfoList* list | ArkUI_AccessibilityElementInfoList struct to which the newly created ArkUI_AccessibilityElementInfo member is added and then returned to the function caller. |
Returns
| Type | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* | Pointer to the created ArkUI_AccessibilityElementInfo struct; returns NULL if creation fails. |
OH_ArkUI_AccessibilityElementInfoSetElementId()
int32_t OH_ArkUI_AccessibilityElementInfoSetElementId(ArkUI_AccessibilityElementInfo* elementInfo, int32_t elementId)
Description
Sets the component ID for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to an ArkUI_AccessibilityElementInfo object. |
| int32_t elementId | Unique ID of the accessibility element. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetParentId()
int32_t OH_ArkUI_AccessibilityElementInfoSetParentId(ArkUI_AccessibilityElementInfo* elementInfo, int32_t parentId)
Description
Sets the parent ID for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t parentId | Accessibility ID of the element's parent component. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetComponentType()
int32_t OH_ArkUI_AccessibilityElementInfoSetComponentType(ArkUI_AccessibilityElementInfo* elementInfo, const char* componentType)
Description
Sets the component type for the ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* componentType | Pointer to the component type of the element. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetContents()
int32_t OH_ArkUI_AccessibilityElementInfoSetContents(ArkUI_AccessibilityElementInfo* elementInfo, const char* contents)
Description
Sets the component text content for the ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* contents | Pointer to the text content recognized by accessibility services for the element. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetHintText()
int32_t OH_ArkUI_AccessibilityElementInfoSetHintText(ArkUI_AccessibilityElementInfo* elementInfo, const char* hintText)
Description
Sets the hint text for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* hintText | Pointer to the hint text. The default value is "". |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetAccessibilityText()
int32_t OH_ArkUI_AccessibilityElementInfoSetAccessibilityText(ArkUI_AccessibilityElementInfo* elementInfo, const char* accessibilityText)
Description
Sets the accessibility text for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* accessibilityText | Pointer to the accessibility text. The default value is "". |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetAccessibilityDescription()
int32_t OH_ArkUI_AccessibilityElementInfoSetAccessibilityDescription(ArkUI_AccessibilityElementInfo* elementInfo, const char* accessibilityDescription)
Description
Sets the accessibility description for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* accessibilityDescription | Pointer to the accessibility description. The default value is "". |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetChildNodeIds()
int32_t OH_ArkUI_AccessibilityElementInfoSetChildNodeIds(ArkUI_AccessibilityElementInfo* elementInfo, int32_t childCount, int64_t* childNodeIds)
Description
Sets the child node count and IDs for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t childCount | Child node count. The default value is 0. |
| int64_t* childNodeIds | Pointer to the array of child node IDs. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetOperationActions()
int32_t OH_ArkUI_AccessibilityElementInfoSetOperationActions(ArkUI_AccessibilityElementInfo* elementInfo,int32_t operationCount, ArkUI_AccessibleAction* operationActions)
Description
Sets the supported operations for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t* operationCount | Pointer to the number of actions supported by the component. |
| ArkUI_AccessibleAction* operationActions | Pointer to the array of actions supported by the component. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetScreenRect()
int32_t OH_ArkUI_AccessibilityElementInfoSetScreenRect(ArkUI_AccessibilityElementInfo* elementInfo, ArkUI_AccessibleRect* screenRect)
Description
Sets the screen coordinates for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| ArkUI_AccessibleRect* screenRect | Pointer to the screen coordinates. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetCheckable()
int32_t OH_ArkUI_AccessibilityElementInfoSetCheckable(ArkUI_AccessibilityElementInfo* elementInfo, bool checkable)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is checkable.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool checkable | Whether the object is checkable. true: checkable; false: not checkable. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetChecked()
int32_t OH_ArkUI_AccessibilityElementInfoSetChecked(ArkUI_AccessibilityElementInfo* elementInfo, bool checked)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is checked.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool checked | Whether the object is checked. true: checked; false: unchecked. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetFocusable()
int32_t OH_ArkUI_AccessibilityElementInfoSetFocusable(ArkUI_AccessibilityElementInfo* elementInfo, bool focusable)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is focusable.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool focusable | Whether the object is focusable. true: focusable; false: not focusable. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetFocused()
int32_t OH_ArkUI_AccessibilityElementInfoSetFocused(ArkUI_AccessibilityElementInfo* elementInfo, bool isFocused)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is focused.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool isFocused | Whether the object is focused. true: focused; false: not focused. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetVisible()
int32_t OH_ArkUI_AccessibilityElementInfoSetVisible(ArkUI_AccessibilityElementInfo* elementInfo, bool isVisible)
Description
Sets whether an ArkUI_AccessibilityElementInfo object is visible.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool isVisible | Whether the element is visible. true: visible; false: not visible. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetAccessibilityFocused()
int32_t OH_ArkUI_AccessibilityElementInfoSetAccessibilityFocused(ArkUI_AccessibilityElementInfo* elementInfo, bool accessibilityFocused)
Description
Sets whether the element is focused for accessibility purposes for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool accessibilityFocused | Accessibility focus state. true: Accessibility focus is set. false: Accessibility focus is not set. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetSelected()
int32_t OH_ArkUI_AccessibilityElementInfoSetSelected(ArkUI_AccessibilityElementInfo* elementInfo, bool selected)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is selected.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool selected | Whether the object is selected. true: selected; false: not selected. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetClickable()
int32_t OH_ArkUI_AccessibilityElementInfoSetClickable(ArkUI_AccessibilityElementInfo* elementInfo, bool clickable)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is clickable.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool clickable | Whether the object is clickable. true: supported; false: not supported. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetLongClickable()
int32_t OH_ArkUI_AccessibilityElementInfoSetLongClickable(ArkUI_AccessibilityElementInfo* elementInfo, bool longClickable)
Description
Sets whether the ArkUI_AccessibilityElementInfo object supports long-press gestures.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool longClickable | Whether long-press gestures are supported. true: supported; false: not supported. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetEnabled()
int32_t OH_ArkUI_AccessibilityElementInfoSetEnabled(ArkUI_AccessibilityElementInfo* elementInfo, bool isEnabled)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is enabled.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool isEnabled | Whether the object is enabled. true: enabled; false: not enabled. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetIsPassword()
int32_t OH_ArkUI_AccessibilityElementInfoSetIsPassword(ArkUI_AccessibilityElementInfo* elementInfo, bool isPassword)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is a password.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool isPassword | Whether the object is a password. true: The object is a password. false: The object is not a password. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetScrollable()
int32_t OH_ArkUI_AccessibilityElementInfoSetScrollable(ArkUI_AccessibilityElementInfo* elementInfo, bool scrollable)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is scrollable.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool scrollable | Whether scrolling is supported. true: supported; false: not supported. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetEditable()
int32_t OH_ArkUI_AccessibilityElementInfoSetEditable(ArkUI_AccessibilityElementInfo* elementInfo, bool editable)
Description
Sets whether the ArkUI_AccessibilityElementInfo object is editable.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool editable | Whether editing is supported. true: supported; false: not supported. The default value is false. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetIsHint()
int32_t OH_ArkUI_AccessibilityElementInfoSetIsHint(ArkUI_AccessibilityElementInfo* elementInfo, bool isHint)
Description
Sets the hint status for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool isHint | Whether the object represents a hint. true if the object represents a hint, false otherwise. The hintText information is obtained only when the object is in the hint state. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetRangeInfo()
int32_t OH_ArkUI_AccessibilityElementInfoSetRangeInfo(ArkUI_AccessibilityElementInfo* elementInfo, ArkUI_AccessibleRangeInfo* rangeInfo)
Description
Sets the range information for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| ArkUI_AccessibleRangeInfo* rangeInfo | Pointer to the current value, maximum value, and minimum value of the specific component. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetGridInfo()
int32_t OH_ArkUI_AccessibilityElementInfoSetGridInfo(ArkUI_AccessibilityElementInfo* elementInfo, ArkUI_AccessibleGridInfo* gridInfo)
Description
Sets the grid information for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| ArkUI_AccessibleGridInfo* gridInfo | Pointer to the number of rows, number of columns, and selection mode of the specific component. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetGridItemInfo()
int32_t OH_ArkUI_AccessibilityElementInfoSetGridItemInfo(ArkUI_AccessibilityElementInfo* elementInfo, ArkUI_AccessibleGridItemInfo* gridItem)
Description
Sets a single-item container within a grid container for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| ArkUI_AccessibleGridItemInfo* gridItem | Pointer to the attribute values for the specific component. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetSelectedTextStart()
int32_t OH_ArkUI_AccessibilityElementInfoSetSelectedTextStart(ArkUI_AccessibilityElementInfo* elementInfo, int32_t selectedTextStart)
Description
Sets the start position of the selected text for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t selectedTextStart | Start position of the selected text. Applicable to text components. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetSelectedTextEnd()
int32_t OH_ArkUI_AccessibilityElementInfoSetSelectedTextEnd(ArkUI_AccessibilityElementInfo* elementInfo, int32_t selectedTextEnd)
Description
Sets the end position of the selected text for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t selectedTextEnd | End position of the selected text. Applicable to text components. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetCurrentItemIndex()
int32_t OH_ArkUI_AccessibilityElementInfoSetCurrentItemIndex(ArkUI_AccessibilityElementInfo* elementInfo, int32_t currentItemIndex)
Description
Sets the position information of the currently focused component for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t currentItemIndex | Position information of the currently focused component. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetStartItemIndex()
int32_t OH_ArkUI_AccessibilityElementInfoSetStartItemIndex(ArkUI_AccessibilityElementInfo* elementInfo, int32_t startItemIndex)
Description
Sets the position information of the first element displayed on the current screen for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t startItemIndex | Index of the first item displayed on the current screen. Applicable to components such as List, Select, Swiper, and Tab_Bar. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetEndItemIndex()
int32_t OH_ArkUI_AccessibilityElementInfoSetEndItemIndex(ArkUI_AccessibilityElementInfo* elementInfo, int32_t endItemIndex)
Description
Sets the position information of the last element displayed on the current screen for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t endItemIndex | Index of the last item displayed on the current screen. Applicable to components such as List, Select, Swiper, and Tab_Bar. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetItemCount()
int32_t OH_ArkUI_AccessibilityElementInfoSetItemCount(ArkUI_AccessibilityElementInfo* elementInfo, int32_t itemCount)
Description
Sets the total number of elements of a specific component for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t itemCount | Total count of items of the specific component. Applicable to components such as List, Select, Swiper, and Tab_Bar. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetAccessibilityOffset()
int32_t OH_ArkUI_AccessibilityElementInfoSetAccessibilityOffset(ArkUI_AccessibilityElementInfo* elementInfo, int32_t offset)
Description
Sets the scrolling pixel offset of the content area relative to the top coordinate of the element for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t offset | Scrolling pixel offset of the content area relative to the top coordinate of the element for scrollable controls, such as List and Grid. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetAccessibilityGroup()
int32_t OH_ArkUI_AccessibilityElementInfoSetAccessibilityGroup(ArkUI_AccessibilityElementInfo* elementInfo, bool accessibilityGroup)
Description
Sets whether the ArkUI_AccessibilityElementInfo object should be treated as an accessibility group.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| bool accessibilityGroup | Whether to enable accessibility group behavior for the object. true: enable; false: disable. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetAccessibilityLevel()
int32_t OH_ArkUI_AccessibilityElementInfoSetAccessibilityLevel(ArkUI_AccessibilityElementInfo* elementInfo, const char* accessibilityLevel)
Description
Sets the accessibility level for the ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* accessibilityLevel | Pointer to the accessibility level of the component, which is used to decide whether the component is recognized by accessibility services. - auto: The system automatically determines the component's importance based on its attributes and decides whether to allow accessibility services to recognize it. - yes: The component is important and allows recognition by accessibility services. - no: The component is not important and prohibits recognition by accessibility services. - no-hide-descendants: The component and its descendant nodes are not important, and prohibits recognition of the component and its descendants by accessibility services. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetZIndex()
int32_t OH_ArkUI_AccessibilityElementInfoSetZIndex(ArkUI_AccessibilityElementInfo* elementInfo, int32_t zIndex)
Description
Sets the z-order of the component for the ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| int32_t zIndex | Z-order of the component, used to control the position of the component along the z-axis perpendicular to the screen. This parameter is required for UiTest. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetAccessibilityOpacity()
int32_t OH_ArkUI_AccessibilityElementInfoSetAccessibilityOpacity(ArkUI_AccessibilityElementInfo* elementInfo, float opacity)
Description
Sets the opacity for the ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| float opacity | Opacity. The value ranges from 0 to 1, where 1 indicates opaque and 0 indicates completely transparent. This parameter is required for UiTest. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetBackgroundColor()
int32_t OH_ArkUI_AccessibilityElementInfoSetBackgroundColor(ArkUI_AccessibilityElementInfo* elementInfo, const char* backgroundColor)
Description
Sets the background color for the ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* backgroundColor | Pointer to the background color. The value is in the #ARGB format. For example, the value for non-transparent white is "#FFFFFFFF". This parameter is required for UiTest. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetBackgroundImage()
int32_t OH_ArkUI_AccessibilityElementInfoSetBackgroundImage(ArkUI_AccessibilityElementInfo* elementInfo, const char* backgroundImage)
Description
Sets the background image for the ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* backgroundImage | Pointer to the background image. This parameter is required for UiTest. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetBlur()
int32_t OH_ArkUI_AccessibilityElementInfoSetBlur(ArkUI_AccessibilityElementInfo* elementInfo, const char* blur)
Description
Sets the blur value for the ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* blur | Pointer to the blur value. This parameter is required for UiTest. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetHitTestBehavior()
int32_t OH_ArkUI_AccessibilityElementInfoSetHitTestBehavior(ArkUI_AccessibilityElementInfo* elementInfo, const char* hitTestBehavior)
Description
Sets the response logic and node blocking rules for the hit test for an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
| const char* hitTestBehavior | Pointer to the hit test mode. For details about the value range, see HitTestMode. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityElementInfoSetComponentIdentifier()
int32_t OH_ArkUI_AccessibilityElementInfoSetComponentIdentifier(ArkUI_AccessibilityElementInfo* elementInfo, const char* identifier)
Description
Sets the component identifier for the accessibility node information of the ArkUI_AccessibilityElementInfo object, which can be used to identify specific components in automated tests.
Since: 24
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the element information of an accessibility node. |
| const char* identifier | Pointer to the unique identifier of a component. Ensure that the component identifier in the reported component tree is unique and the character string contains a maximum of 1024 characters. If the character string exceeds 1024 characters, it will be truncated. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_CreateAccessibilityElementInfo()
ArkUI_AccessibilityElementInfo* OH_ArkUI_CreateAccessibilityElementInfo(void)
Description
Creates an ArkUI_AccessibilityElementInfo object, which must be destroyed with OH_ArkUI_DestoryAccessibilityElementInfo.
Since: 13
Returns
| Type | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* | Pointer to the ArkUI_AccessibilityElementInfo object. |
OH_ArkUI_DestoryAccessibilityElementInfo()
void OH_ArkUI_DestoryAccessibilityElementInfo(ArkUI_AccessibilityElementInfo* elementInfo)
Description
Destroys an ArkUI_AccessibilityElementInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to the target ArkUI_AccessibilityElementInfo object. |
OH_ArkUI_CreateAccessibilityEventInfo()
ArkUI_AccessibilityEventInfo* OH_ArkUI_CreateAccessibilityEventInfo(void)
Description
Creates an ArkUI_AccessibilityEventInfo object, which must be destroyed with OH_ArkUI_DestoryAccessibilityEventInfo.
Since: 13
Returns
| Type | Description |
|---|---|
| ArkUI_AccessibilityEventInfo* | Pointer to the ArkUI_AccessibilityEventInfo object. |
OH_ArkUI_DestoryAccessibilityEventInfo()
void OH_ArkUI_DestoryAccessibilityEventInfo(ArkUI_AccessibilityEventInfo* eventInfo)
Description
Destroys an ArkUI_AccessibilityEventInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityEventInfo* eventInfo | Pointer to the ArkUI_AccessibilityEventInfo object to destroy. |
OH_ArkUI_AccessibilityEventSetEventType()
int32_t OH_ArkUI_AccessibilityEventSetEventType(ArkUI_AccessibilityEventInfo* eventInfo, ArkUI_AccessibilityEventType eventType)
Description
Sets the event type for an ArkUI_AccessibilityEventInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityEventInfo* eventInfo | Pointer to an ArkUI_AccessibilityEventInfo object. |
| ArkUI_AccessibilityEventType eventType | Event type. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityEventSetTextAnnouncedForAccessibility()
int32_t OH_ArkUI_AccessibilityEventSetTextAnnouncedForAccessibility(ArkUI_AccessibilityEventInfo* eventInfo, const char* textAnnouncedForAccessibility)
Description
Sets the content for auto-broadcasting for the ArkUI_AccessibilityEventInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityEventInfo* eventInfo | Pointer to an ArkUI_AccessibilityEventInfo object. |
| const char* textAnnouncedForAccessibility | Pointer to the content for auto-broadcasting. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityEventSetRequestFocusId()
int32_t OH_ArkUI_AccessibilityEventSetRequestFocusId(ArkUI_AccessibilityEventInfo* eventInfo, int32_t requestFocusId)
Description
Sets the focus request ID for an ArkUI_AccessibilityEventInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityEventInfo* eventInfo | Pointer to an ArkUI_AccessibilityEventInfo object. |
| int32_t requestFocusId | Focus request ID. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_AccessibilityEventSetElementInfo()
int32_t OH_ArkUI_AccessibilityEventSetElementInfo(ArkUI_AccessibilityEventInfo* eventInfo, ArkUI_AccessibilityElementInfo* elementInfo)
Description
Sets the element information for an ArkUI_AccessibilityEventInfo object.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityEventInfo* eventInfo | Pointer to an ArkUI_AccessibilityEventInfo object. |
| ArkUI_AccessibilityElementInfo* elementInfo | Pointer to an ArkUI_AccessibilityElementInfo object. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_FindAccessibilityActionArgumentByKey()
int32_t OH_ArkUI_FindAccessibilityActionArgumentByKey(ArkUI_AccessibilityActionArguments* arguments, const char* key, char** value)
Description
Obtains the value associated with a specified key in an ArkUI_AccessibilityActionArguments struct.
Since: 13
Parameters
| Name | Description |
|---|---|
| ArkUI_AccessibilityActionArguments* arguments | Pointer to an ArkUI_AccessibilityActionArguments object. |
| const char* key | Pointer to the key. |
| char** value | Pointer to the value. |
Returns
| Type | Description |
|---|---|
| int32_t | Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_SUCCESSFUL if the operation is successful. Returns ARKUI_ACCESSIBILITY_NATIVE_RESULT_BAD_PARAMETER if a parameter error occurs. |
OH_ArkUI_NativeModule_GetNativeAccessibilityProvider()
int32_t OH_ArkUI_NativeModule_GetNativeAccessibilityProvider(ArkUI_NodeHandle* node, ArkUI_AccessibilityProvider** provider)
Description
Obtains the level-2 pointer variable of the pointer to the ArkUI_AccessibilityProvider object.
The ArkUI_AccessibilityProvider object corresponds to the ArkUI_NodeHandle instance passed.
A third-party framework maps its UI components as RenderNode of the ARKUI_NODE_CUSTOM type to obtain ArkUI_NodeHandle.
Then, it calls OH_ArkUI_NativeModule_GetNativeAccessibilityProvider to obtain the ArkUI_AccessibilityProvider pointer and register an accessibility callback.
Finally, the ArkUI accessibility service can identify the UI of the third-party framework and trigger events.
This API takes effect only when the third-party framework maps its UI components as RenderNode of the ARKUI_NODE_CUSTOM type. Otherwise, an error code will be reported.
This API uses RenderNode to implement the access of the third-party framework. Only ARKUI_NODE_CUSTOM can access the accessibility service to obtain the accessibility control tree.
Multi-thread concurrency is not supported. The third-party framework ensures thread security during the API calling.
Since: 23
Parameters
| Name | Description |
|---|---|
| ArkUI_NodeHandle* node | Pointer to an ArkUI_NodeHandle object. |
| ArkUI_AccessibilityProvider** provider | Double pointer to an object of the ArkUI_AccessibilityProvider type. provider is used to register an accessibility callback function. |
Returns
| Type | Description |
|---|---|
| int32_t | Status code. Returns ARKUI_ERROR_CODE_NO_ERROR if the operation is successful. Returns ARKUI_ERROR_CODE_PARAM_INVALID if a parameter error occurs. Parameter error: 1. The input parameter node or provider is a null pointer. 2. The ArkUI_NodeHandle type corresponding to node is not ARKUI_NODE_CUSTOM. |
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