WebChromeClient

WebChromeClient

WebChromeClient ()

getDefaultVideoPoster

Bitmap getDefaultVideoPoster ()

When not playing, video elements are represented by a 'poster' image. The image to use can be specified by the poster attribute of the video tag in HTML. If the attribute is absent, then a default poster will be used. This method allows the ChromeClient to provide that default image.

getVideoLoadingProgressView

View getVideoLoadingProgressView ()

Obtains a View to be displayed while buffering of full screen video is taking place. The host application can override this method to provide a View containing a spinner or similar.

getVisitedHistory

void getVisitedHistory (ValueCallback<String[]> callback)

Obtains a list of all visited history items, used for link coloring

onCloseWindow

void onCloseWindow (WebView window)

Notify the host application to close the given WebView and remove it from the view system if necessary. At this point, WebCore has stopped any loading in this window and has removed any cross-scripting ability in javascript.

onConsoleMessage

boolean onConsoleMessage (ConsoleMessage consoleMessage)

Report a JavaScript console message to the host application. The ChromeClient should override this to process the log message as they see fit.

onConsoleMessage

void onConsoleMessage (String message, 
                int lineNumber, 
                String sourceID)

This method was deprecated in API level 8.
Use onConsoleMessage(ConsoleMessage) instead.

Report a JavaScript error message to the host application. The ChromeClient should override this to process the log message as they see fit.

onCreateWindow

boolean onCreateWindow (WebView view, 
                boolean isDialog, 
                boolean isUserGesture, 
                Message resultMsg)

Request the host application to create a new window. If the host application chooses to honor this request, it should return true from this method, create a new WebView to host the window, insert it into the View system and send the supplied resultMsg message to its target with the new WebView as an argument. If the host application chooses not to honor the request, it should return false from this method. The default implementation of this method does nothing and hence returns false.

onExceededDatabaseQuota

void onExceededDatabaseQuota (String url, 
                String databaseIdentifier, 
                long quota, 
                long estimatedDatabaseSize, 
                long totalQuota, 
                WebStorage.QuotaUpdater quotaUpdater)

This method was deprecated in API level 19.
This method is no longer called; WebView now uses the HTML5 / JavaScript Quota Management API.

Tell the client that the quota has been exceeded for the Web SQL Database API for a particular origin and request a new quota. The client must respond by invoking the updateQuota(long) method of the supplied WebStorage.QuotaUpdater instance. The minimum value that can be set for the new quota is the current quota. The default implementation responds with the current quota, so the quota will not be increased.

onGeolocationPermissionsHidePrompt

void onGeolocationPermissionsHidePrompt ()

Notify the host application that a request for Geolocation permissions, made with a previous call to onGeolocationPermissionsShowPrompt() has been canceled. Any related UI should therefore be hidden.

onGeolocationPermissionsShowPrompt

void onGeolocationPermissionsShowPrompt (String origin, 
                GeolocationPermissions.Callback callback)

Notify the host application that web content from the specified origin is attempting to use the Geolocation API, but no permission state is currently set for that origin. The host application should invoke the specified callback with the desired permission state. See GeolocationPermissions for details.

Note that for applications targeting Android N and later SDKs (API level > M) this method is only called for requests originating from secure origins such as https. On non-secure origins geolocation requests are automatically denied.

onHideCustomView

void onHideCustomView ()

Notify the host application that the current page has exited full screen mode. The host application must hide the custom View, ie. the View passed to onShowCustomView(View, WebChromeClient.CustomViewCallback) when the content entered fullscreen. Also see "Full screen support" documentation on WebView.

onJsAlert

boolean onJsAlert (WebView view, 
                String url, 
                String message, 
                JsResult result)

Tell the client to display a javascript alert dialog. If the client returns true, WebView will assume that the client will handle the dialog. If the client returns false, it will continue execution.

onJsBeforeUnload

boolean onJsBeforeUnload (WebView view, 
                String url, 
                String message, 
                JsResult result)

Tell the client to display a dialog to confirm navigation away from the current page. This is the result of the onbeforeunload javascript event. If the client returns true, WebView will assume that the client will handle the confirm dialog and call the appropriate JsResult method. If the client returns false, a default value of true will be returned to javascript to accept navigation away from the current page. The default behavior is to return false. Setting the JsResult to true will navigate away from the current page, false will cancel the navigation.

onJsConfirm

boolean onJsConfirm (WebView view, 
                String url, 
                String message, 
                JsResult result)

Tell the client to display a confirm dialog to the user. If the client returns true, WebView will assume that the client will handle the confirm dialog and call the appropriate JsResult method. If the client returns false, a default value of false will be returned to javascript. The default behavior is to return false.

onJsPrompt

boolean onJsPrompt (WebView view, 
                String url, 
                String message, 
                String defaultValue, 
                JsPromptResult result)

Tell the client to display a prompt dialog to the user. If the client returns true, WebView will assume that the client will handle the prompt dialog and call the appropriate JsPromptResult method. If the client returns false, a default value of false will be returned to to javascript. The default behavior is to return false.

onJsTimeout

boolean onJsTimeout ()

This method was deprecated in API level 17.
This method is no longer supported and will not be invoked.

Tell the client that a JavaScript execution timeout has occured. And the client may decide whether or not to interrupt the execution. If the client returns true, the JavaScript will be interrupted. If the client returns false, the execution will continue. Note that in the case of continuing execution, the timeout counter will be reset, and the callback will continue to occur if the script does not finish at the next check point.

onPermissionRequest

void onPermissionRequest (PermissionRequest request)

Notify the host application that web content is requesting permission to access the specified resources and the permission currently isn't granted or denied. The host application must invoke grant(String[]) or deny(). If this method isn't overridden, the permission is denied.

onPermissionRequestCanceled

void onPermissionRequestCanceled (PermissionRequest request)

Notify the host application that the given permission request has been canceled. Any related UI should therefore be hidden.

onProgressChanged

void onProgressChanged (WebView view, 
                int newProgress)

Tell the host application the current progress of loading a page.

onReachedMaxAppCacheSize

void onReachedMaxAppCacheSize (long requiredStorage, 
                long quota, 
                WebStorage.QuotaUpdater quotaUpdater)

This method was deprecated in API level 19.
This method is no longer called; WebView now uses the HTML5 / JavaScript Quota Management API.

Notify the host application that the Application Cache has reached the maximum size. The client must respond by invoking the updateQuota(long) method of the supplied WebStorage.QuotaUpdater instance. The minimum value that can be set for the new quota is the current quota. The default implementation responds with the current quota, so the quota will not be increased.

onReceivedIcon

void onReceivedIcon (WebView view, 
                Bitmap icon)

Notify the host application of a new favicon for the current page.

onReceivedTitle

void onReceivedTitle (WebView view, 
                String title)

Notify the host application of a change in the document title.

onReceivedTouchIconUrl

void onReceivedTouchIconUrl (WebView view, 
                String url, 
                boolean precomposed)

Notify the host application of the url for an apple-touch-icon.

onRequestFocus

void onRequestFocus (WebView view)

Request display and focus for this WebView. This may happen due to another WebView opening a link in this WebView and requesting that this WebView be displayed.

onShowCustomView

void onShowCustomView (View view, 
                int requestedOrientation, 
                WebChromeClient.CustomViewCallback callback)

This method was deprecated in API level 18.
This method supports the obsolete plugin mechanism, and will not be invoked in future

Notify the host application that the current page would like to show a custom View in a particular orientation.

onShowCustomView

void onShowCustomView (View view, 
                WebChromeClient.CustomViewCallback callback)

Notify the host application that the current page has entered full screen mode. The host application must show the custom View which contains the web contents — video or other HTML content — in full screen mode. Also see "Full screen support" documentation on WebView.

onShowFileChooser

boolean onShowFileChooser (WebView webView, 
                ValueCallback<Uri[]> filePathCallback, 
                WebChromeClient.FileChooserParams fileChooserParams)

Tell the client to show a file chooser. This is called to handle HTML forms with 'file' input type, in response to the user pressing the "Select File" button. To cancel the request, call filePathCallback.onReceiveValue(null) and return true.