- view
- The WebView that initiated the callback.
- url
- The url of the page requesting the dialog.
- message
- Message to be displayed in the window.
- result
- A JsResult used to send the user's response to javascript.
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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.