WebView

java.lang.Object
- ohos.agp.components.Component
- - ohos.agp.components.webengine.WebView

```
public class WebView
extends Component
```
Represents a component that has the web page access capability.
This class is inherited from Component and contains all capabilities of the basic component. This component can be used to load web page content, obtain page details, and control page jumping. You can also use Data abilities to load local web page files.

从以下版本开始:

5

嵌套类概要
- 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

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

构造器概要

构造器
构造器	说明
`WebView(Context context)`	A constructor used to create a `WebView` instance by passing the context and using the default style attributes.
`WebView(Context context, AttrSet attrSet)`	A constructor used to create a `WebView` instance by passing the context and a set of style attributes.

方法概要

所有方法实例方法具体方法
限定符和类型	方法	说明
`void`	`activateGlobalTimers()`	Activates global timers of a `WebView` object.
`void`	`addJsCallback(String name, JsCallback jsCallBack)`	Adds the JavaScript object that can be called in the `WebView`.
`boolean`	`canScroll(int direction, int distance)`	Checks whether the `WebView` content can be scrolled by the specified distance in the horizontal or vertical direction.
`void`	`clearAllCache()`	Clears resource caches of a `WebView` object in both the memory and local storage.
`void`	`clearMemoryCache()`	Clears the resource cache of a `WebView` object in the memory.
`void`	`doFling(int horizonalVelocity, int verticalVelocity)`	Triggers scrolling of a web page.
`void`	`executeJs(String jsContent, AsyncCallback<String> callback)`	Executes the JavaScript script.
`boolean`	`executeLongClick()`	Performs a long-click event in a component.
`String`	`getCurrentUrl()`	Obtains the URL currently loaded by a `WebView` object.
`PixelMap`	`getFavicon()`	Obtains the favicon of the current web page.
`String`	`getFirstRequestUrl()`	Obtains the first loaded URL of the current page.
`FontConfig`	`getFontConfig()`	Obtains a `FontConfig` instance to configure fonts for a `WebView` object.
`Component.KeyEventListener`	`getKeyEventListener()`	Obtains a listener for monitoring key events of this component.
`Navigator`	`getNavigator()`	Obtains a `Navigator` object.
`int`	`getProgress()`	Obtains the loading progress of the current web page.
`ScaleController`	`getScaleController()`	Obtains a `ScaleController` instance to manage and observe scaling of a `WebView` object.
`String`	`getTitle()`	Obtains the title of the current page.
`Component.TouchEventListener`	`getTouchEventListener()`	Obtains a listener for monitoring touch events of this component.
`WebConfig`	`getWebConfig()`	Obtains the `WebConfig` object, which is used to set the `WebView` attributes.
`int`	`getWebPageHeight()`	Obtains the height of a web page.
`void`	`inactivateGlobalTimers()`	Stops global timers of a `WebView` object.
`void`	`load(String url)`	Loads the given web page linked by a specified URL.
`void`	`load(String data, String mimeType, boolean isBase64Encoded)`	Loads data strings to a `WebView` object.
`void`	`load(String data, String mimeType, String encodingName, String baseUrl, String virtualUrl)`	Loads the data schema to the `WebView` object with the base URL and virtual URL specified.
`void`	`notifyJsOnline(boolean isOnline)`	Notifies a `WebView` object of the current network status.
`void`	`onActive()`	Called when the `WebView` is set to be active, for example, when the page containing this `WebView` regains the focus or the page is being displayed in the foreground.
`void`	`onInactive()`	Called when the `WebView` is set to be inactive, for example, when the page containing this `WebView` has lost focus or no operation is allowed on the page.
`void`	`onStop()`	Called when the `WebView` is set to be stopped, for example, when the page containing this `WebView` is destroyed.
`boolean`	`pageDown(boolean isToBottom)`	Scrolls down a web page.
`boolean`	`pageUp(boolean isToTop)`	Scrolls up the web page.
`void`	`post(String url, byte[] data)`	Sends a POST request to a specified URL.
`void`	`reload()`	Reloads the current page.
`void`	`removeJsCallback(String name)`	Removes the JavaScript callback object.
`boolean`	`requestFocus()`	Requests focus for the current component or one of its child components.
`void`	`setBrowserAgent(BrowserAgent browserAgent)`	Sets a specified `BrowserAgent` object, which is used to process the web-page-related callbacks, for example, processing JavaScript events and website attribute change events.
`void`	`setFocusChangedListener(Component.FocusChangedListener listener)`	Registers a listener for focus change events in the component.
`void`	`setKeyEventListener(Component.KeyEventListener listener)`	Registers a listener for key events in the component.
`void`	`setTouchEventListener(Component.TouchEventListener listener)`	Registers a listener for touch events in the component.
`void`	`setVisibility(int visibility)`	Sets the visibility of a component.
`void`	`setWebAgent(WebAgent webAgent)`	Sets a specified `WebAgent` object, which is used to process notifications and requests.
`void`	`setWebViewBackground(RgbColor rgbColor)`	Sets the background color of the `WebView` object.
`void`	`stopLoading()`	Stops loading of data to a `WebView` object.

从类继承的方法 ohos.agp.components.Component
addDrawTask, addDrawTask, addScrolledListener, announceAccessibility, arrange, bindCornerMark, callOnClick, canScroll, clearFocus, createAnimatorProperty, disableFadeEffect, dispatchRestoreState, dispatchSaveState, draw, enableCornerMark, enableFadeEffect, enableSaveState, enableScrollBar, estimateSize, executeDoubleClick, findComponentById, findComponentHolderById, 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, 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, getTransitionSymbol, getTranslation, getTranslationX, getTranslationY, getTranslationZ, getUserNextFocus, getVerticalPadding, getVerticalPosition, getVisibility, getVisibleRectOnScreen, getWidth, getWindowVisibleRect, hasFocus, hasFocusedEffect, hasOverlaps, hideFocusBorder, informConfigurationChanged, invalidate, isBoundaryFadeEffectEnable, isBoundToWindow, isClickable, isClipToContourEnabled, isComponentDisplayed, isEnabled, isFadeEffected, isFocusable, isFocused, isIdentityMatrix, isLongClickOn, isPressed, isRtl, isSaveStateEnabled, isScrollbarFadingOn, isScrollBarOn, isScrollbarOverlapEnabled, isSelected, isSoundEnable, isTouchFocusable, isVibrationEffectEnabled, notifyAccessibility, onAttributeConfigChanged, onDrag, onRestoreState, onRtlChanged, onSaveState, performScale, playSound, postLayout, refreshContour, release, removeBindStateChangedListener, removeScrolledListener, 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, setFocusedEffect, setForeground, setForegroundGravity, setForwardHoverListener, setForwardTouchListener, setGesturePriority, setHeight, setHorizontalPadding, setHorizontalPosition, setHoverEventListener, setId, 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, setTouchFocusable, setTransitionSymbol, setTranslation, setTranslationX, setTranslationY, setTranslationZ, setUnconsumedKeyEventListener, setUserNextFocus, setVerticalPadding, setVerticalPosition, setVibrationEffectEnabled, setWidth, showFocusBorder, simulateClick, simulateDrag, startDragAndDrop, subscribeVoiceEvents, unsubscribeVoiceEvents

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
  - WebView
```
public WebView(Context context)
```
    A constructor used to create a WebView instance by passing the context and using the default style attributes.
    
    参数:
    
    context - Indicates the context to use.
    
    从以下版本开始:
    
    5
  - WebView
```
public WebView(Context context,
               AttrSet attrSet)
```
    A constructor used to create a WebView instance by passing the context and a set of style attributes.
    
    参数:
    
    context - Indicates the context to use.
    
    attrSet - Indicates the attribute set to use.
    
    从以下版本开始:
    
    5
- 方法详细资料
  - setKeyEventListener
```
public void setKeyEventListener(Component.KeyEventListener listener)
```
    从类复制的说明: Component
    
    Registers a listener for key events in the component.
    All registered observers will be notified of key events dispatched to the component.
    
    覆盖:
    
    setKeyEventListener 在类中 Component
    
    参数:
    
    listener - Indicates the listener for key events.
  - getKeyEventListener
```
public Component.KeyEventListener getKeyEventListener()
```
    从类复制的说明: Component
    
    Obtains a listener for monitoring key events of this component.
    
    覆盖:
    
    getKeyEventListener 在类中 Component
    
    返回:
    
    Returns the listener.
  - setTouchEventListener
```
public void setTouchEventListener(Component.TouchEventListener listener)
```
    从类复制的说明: Component
    
    Registers a listener for touch events in the component.
    All registered observers will be notified of touch events dispatched to the component.
    
    覆盖:
    
    setTouchEventListener 在类中 Component
    
    参数:
    
    listener - Indicates the listener for touch events.
  - getTouchEventListener
```
public Component.TouchEventListener getTouchEventListener()
```
    从类复制的说明: Component
    
    Obtains a listener for monitoring touch events of this component.
    
    覆盖:
    
    getTouchEventListener 在类中 Component
    
    返回:
    
    Returns the listener.
  - setFocusChangedListener
```
public void setFocusChangedListener(Component.FocusChangedListener listener)
```
    Registers a listener for focus change events in the component.
    All registered observers will be notified of focus change events dispatched to the component.
    
    覆盖:
    
    setFocusChangedListener 在类中 Component
    
    参数:
    
    listener - Indicates the listener for focus change events.
  - setWebViewBackground
```
public void setWebViewBackground(RgbColor rgbColor)
```
    Sets the background color of the WebView object.
    
    参数:
    
    rgbColor - Indicates the background color to set.
    
    从以下版本开始:
    
    5
  - load
```
public void load(String url)
```
    Loads the given web page linked by a specified URL. The URL supports network protocols such as HTTP and HTTPS, and also supports the scheme "dataability", for loading local files.
    
    参数:
    
    url - Indicates the URL to load.
    
    从以下版本开始:
    
    5
  - load
```
public void load(String data,
                 String mimeType,
                 boolean isBase64Encoded)
```
    Loads data strings to a WebView object.
    If you need to avoid the JavaScript same-origin policy, use the load(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String) method instead.
    
    参数:
    
    data - Indicates the data to be loaded. The value cannot be null. If the data is not encoded using Base64, ensure that all characters in the data string comply with the URL specifications.
    
    mimeType - Indicates the MIME type of the data. If the value is null, text/html is used by default.
    
    isBase64Encoded - Specifies whether the data is encoded using Base64.
    
    从以下版本开始:
    
    5
  - load
```
public void load(String data,
                 String mimeType,
                 String encodingName,
                 String baseUrl,
                 String virtualUrl)
```
    Loads the data schema to the WebView object with the base URL and virtual URL specified.
    When the data schema is used by the base URL, data must be URL or Base64 encoded. Otherwise, the data will be loaded as a pure character string and the URL-encoded entity will not be decoded.
    
    参数:
    
    data - Indicates the data to be loaded. The value cannot be null.
    
    mimeType - Indicates the MIME type of the data. If the value is null, text/html is used by default.
    
    encodingName - Indicates the data encoding format. The value cannot be null.
    
    baseUrl - Indicates the base URL for loading data. The value may be null. The default value is about:blank.
    
    virtualUrl - Indicates the URL displayed to users, which may be null. The default value is about:blank. This parameter is valid only when the data schema is not used by the base URL.
    
    从以下版本开始:
    
    5
  - reload
```
public void reload()
```
    Reloads the current page.
    
    从以下版本开始:
    
    5
  - getFirstRequestUrl
```
public String getFirstRequestUrl()
```
    Obtains the first loaded URL of the current page.
    
    返回:
    
    Returns the first loaded URL, which will be the URL of the current page if no redirect has taken place.
    
    从以下版本开始:
    
    5
  - getTitle
```
public String getTitle()
```
    Obtains the title of the current page.
    
    返回:
    
    Returns the title of the current page.
    
    从以下版本开始:
    
    5
  - onInactive
```
public void onInactive()
```
    Called when the WebView is set to be inactive, for example, when the page containing this WebView has lost focus or no operation is allowed on the page.
    
    从以下版本开始:
    
    5
  - onActive
```
public void onActive()
```
    Called when the WebView is set to be active, for example, when the page containing this WebView regains the focus or the page is being displayed in the foreground.
    
    从以下版本开始:
    
    5
  - onStop
```
public void onStop()
```
    Called when the WebView is set to be stopped, for example, when the page containing this WebView is destroyed.
    
    从以下版本开始:
    
    5
  - executeJs
```
public void executeJs(String jsContent,
                      AsyncCallback<String> callback)
```
    Executes the JavaScript script.
    
    参数:
    
    jsContent - Indicates the script to be executed.
    
    callback - Indicates the asynchronous callback object.
    
    从以下版本开始:
    
    5
  - addJsCallback
```
public void addJsCallback(String name,
                          JsCallback jsCallBack)
```
    Adds the JavaScript object that can be called in the WebView.
    
    参数:
    
    name - Indicates the object name. This parameter cannot be null.
    
    jsCallBack - Indicates the callback object.
    
    从以下版本开始:
    
    5
  - removeJsCallback
```
public void removeJsCallback(String name)
```
    Removes the JavaScript callback object.
    
    参数:
    
    name - Indicates the callback object name.
    
    从以下版本开始:
    
    5
  - stopLoading
```
public void stopLoading()
```
    Stops loading of data to a WebView object.
    
    从以下版本开始:
    
    7
  - getProgress
```
public int getProgress()
```
    Obtains the loading progress of the current web page.
    
    返回:
    
    Returns the loading progress. The value ranges from 0 to 100.
    
    从以下版本开始:
    
    7
  - post
```
public void post(String url,
                 byte[] data)
```
    Sends a POST request to a specified URL. If the URL does not support the POST request, this method is treated as the load(java.lang.String) method.
    
    参数:
    
    url - Indicates the URL for loading. The value cannot be null.
    
    data - Indicates the data content for the POST request. The value must be encoded using application/x-www-form-urlencoded and cannot be null.
    
    从以下版本开始:
    
    5
  - doFling
```
public void doFling(int horizonalVelocity,
                    int verticalVelocity)
```
    Triggers scrolling of a web page.
    
    参数:
    
    horizonalVelocity - Indicates the horizontal velocity.
    
    verticalVelocity - Indicates the vertical velocity.
    
    从以下版本开始:
    
    5
  - getWebPageHeight
```
public int getWebPageHeight()
```
    Obtains the height of a web page.
    
    返回:
    
    Returns the height of the web page.
    
    从以下版本开始:
    
    5
  - getFavicon
```
public PixelMap getFavicon()
```
    Obtains the favicon of the current web page.
    
    返回:
    
    Returns the favicon, which may be null.
    
    从以下版本开始:
    
    7
  - getCurrentUrl
```
public String getCurrentUrl()
```
    Obtains the URL currently loaded by a WebView object.
    
    返回:
    
    Returns the loaded URL.
    
    从以下版本开始:
    
    7
  - pageDown
```
public boolean pageDown(boolean isToBottom)
```
    Scrolls down a web page.
    
    参数:
    
    isToBottom - Indicates whether to scroll a web page to its bottom. Value true indicates scroll-down to the bottom of the web page; value false indicates scroll-down to the half height of the web page.
    
    返回:
    
    Returns true if the page is scrolled down to its bottom; returns false otherwise.
    
    从以下版本开始:
    
    5
  - pageUp
```
public boolean pageUp(boolean isToTop)
```
    Scrolls up the web page.
    
    参数:
    
    isToTop - Specifies whether to scroll a web page to its top. Value true indicates scroll-up to the top of the web page; value false indicates scroll-up to the half height of the web page.
    
    返回:
    
    Returns true if the page is scrolled up to its top; returns false otherwise.
    
    从以下版本开始:
    
    5
  - clearMemoryCache
```
public void clearMemoryCache()
```
    Clears the resource cache of a WebView object in the memory.
    
    从以下版本开始:
    
    7
  - clearAllCache
```
public void clearAllCache()
```
    Clears resource caches of a WebView object in both the memory and local storage.
    
    从以下版本开始:
    
    7
  - notifyJsOnline
```
public void notifyJsOnline(boolean isOnline)
```
    Notifies a WebView object of the current network status.
    
    参数:
    
    isOnline - Specifies whether the current network is online.
    
    从以下版本开始:
    
    7
  - canScroll
```
public boolean canScroll(int direction,
                         int distance)
```
    Checks whether the WebView content can be scrolled by the specified distance in the horizontal or vertical direction.
    
    参数:
    
    direction - Indicates the X-axis or Y-axis direction. Component#AXIS_X indicates the X-axis direction (horizontal), and Component#AXIS_Y indicates the Y-axis direction (vertical).
    
    distance - Indicates the offset distance in the specified direction. A negative value indicates upward or leftward, and a positive value indicates downward or rightward.
    
    返回:
    
    Returns true if the WebView content can be scrolled by the specified distance in the given direction; returns false otherwise.
    
    从以下版本开始:
    
    5
  - inactivateGlobalTimers
```
public void inactivateGlobalTimers()
```
    Stops global timers of a WebView object.
    
    从以下版本开始:
    
    7
  - activateGlobalTimers
```
public void activateGlobalTimers()
```
    Activates global timers of a WebView object.
    
    从以下版本开始:
    
    7
  - getWebConfig
```
public WebConfig getWebConfig()
```
    Obtains the WebConfig object, which is used to set the WebView attributes.
    
    返回:
    
    Returns the WebConfig object.
    
    从以下版本开始:
    
    5
  - getNavigator
```
public Navigator getNavigator()
```
    Obtains a Navigator object.
    
    返回:
    
    Returns the Navigator object.
    
    从以下版本开始:
    
    5
  - getScaleController
```
public ScaleController getScaleController()
```
    Obtains a ScaleController instance to manage and observe scaling of a WebView object.
    
    返回:
    
    Returns a ScaleController instance.
    
    从以下版本开始:
    
    6
  - getFontConfig
```
public FontConfig getFontConfig()
```
    Obtains a FontConfig instance to configure fonts for a WebView object.
    
    返回:
    
    Returns a FontConfig instance.
    
    从以下版本开始:
    
    7
  - setWebAgent
```
public void setWebAgent(WebAgent webAgent)
```
    Sets a specified WebAgent object, which is used to process notifications and requests.
    
    参数:
    
    webAgent - Indicates the specified WebAgent object.
    
    从以下版本开始:
    
    5
  - setBrowserAgent
```
public void setBrowserAgent(BrowserAgent browserAgent)
```
    Sets a specified BrowserAgent object, which is used to process the web-page-related callbacks, for example, processing JavaScript events and website attribute change events.
    
    参数:
    
    browserAgent - Indicates the specified BrowserAgent object.
    
    从以下版本开始:
    
    5
  - setVisibility
```
public void setVisibility(int visibility)
```
    从类复制的说明: Component
    
    Sets the visibility of a component.
    When the parameter value is Component.VISIBLE, the component occupies space and needs to be rendered. When the parameter value is Component.INVISIBLE, the component occupies space but does not need to be rendered. When the parameter value is Component.HIDE, the component occupies no space and does not need to be rendered.
    
    覆盖:
    
    setVisibility 在类中 Component
    
    参数:
    
    visibility - The value is one of the following: Component.VISIBLE, Component.INVISIBLE, or Component.HIDE.
  - requestFocus
```
public boolean requestFocus()
```
    从类复制的说明: Component
    
    Requests focus for the current component or one of its child components.
    A component will not be able to actually take focus in any of the following situations: the component is not focusable (Component.isFocusable() returns false); or the component is not focusable in touch mode (Component.isTouchFocusable() returns false); or the component is invisible, disabled, or has not acquired space for drawing.
    
    覆盖:
    
    requestFocus 在类中 Component
    
    返回:
    
    Returns true if the component or one of its child components has taken focus; returns false otherwise.
  - executeLongClick
```
public boolean executeLongClick()
```
    从类复制的说明: Component
    
    Performs a long-click event in a component.
    This method calls the OnLongClickListener created for the component. Observers registered by the Component.setLongClickedListener(ohos.agp.components.Component.LongClickedListener) method will be notified. After the callback is executed, the system passes a lifting event to the long-click event listener.
    
    覆盖:
    
    executeLongClick 在类中 Component
    
    返回:
    
    Returns true if the callback function is executed successfully.

类 WebView

嵌套类概要

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

字段概要

从类继承的字段 ohos.agp.components.Component

构造器概要

方法概要

从类继承的方法 ohos.agp.components.Component

从类继承的方法 java.lang.Object

构造器详细资料

WebView

WebView

方法详细资料

setKeyEventListener

getKeyEventListener

setTouchEventListener

getTouchEventListener

setFocusChangedListener

setWebViewBackground

load

load

load

reload

getFirstRequestUrl

getTitle

onInactive

onActive

onStop

executeJs

addJsCallback

removeJsCallback

stopLoading

getProgress

post

doFling

getWebPageHeight

getFavicon

getCurrentUrl

pageDown

pageUp

clearMemoryCache

clearAllCache

notifyJsOnline

canScroll

inactivateGlobalTimers

activateGlobalTimers

getWebConfig

getNavigator

getScaleController

getFontConfig

setWebAgent

setBrowserAgent

setVisibility

requestFocus

executeLongClick