Summary: Ctors | Methods | Inherited Methods

WebViewRendererClient

public abstract class WebViewRendererClient
extends Object

java.lang.Object
↳	android.webkit.WebViewRendererClient

Used to receive callbacks on WebView renderer events. WebViewRendererClient instances may be set or retrieved via WebView#setWebViewRendererClient(WebViewRendererClient) and WebView#getWebViewRendererClient(). Instances may be attached to multiple WebViews, and thus a single renderer event may cause a callback to be called multiple times with different WebView parameters.

Summary

Public constructors
`WebViewRendererClient()`

Public methods
`abstract void`	`onRendererResponsive(WebView view, WebViewRenderer renderer)` Called once when an unresponsive renderer currently associated with `view` becomes responsive.
`abstract void`	`onRendererUnresponsive(WebView view, WebViewRenderer renderer)` Called when the renderer currently associated with `view` becomes unresponsive as a result of a long running blocking task such as the execution of JavaScript.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

WebViewRendererClient

public WebViewRendererClient ()

Public methods

onRendererResponsive

Added in Android Q

public abstract void onRendererResponsive (WebView view, 
                WebViewRenderer renderer)

Called once when an unresponsive renderer currently associated with view becomes responsive.

After a WebView renderer becomes unresponsive, which is notified to the application by WebViewRendererClient#onRendererUnresponsive, it is possible for the blocking renderer task to complete, returning the renderer to a responsive state. In that case, this method is called once to indicate responsiveness.

No action is taken by WebView as a result of this method call.

Parameters
`view`	`WebView`: The `WebView` for which responsiveness was detected. This value must never be `null`.
`renderer`	`WebViewRenderer`: The `WebViewRenderer` that has become responsive, or `null` if WebView is running in single process mode. This value may be `null`.

onRendererUnresponsive

Added in Android Q

public abstract void onRendererUnresponsive (WebView view, 
                WebViewRenderer renderer)

Called when the renderer currently associated with view becomes unresponsive as a result of a long running blocking task such as the execution of JavaScript.

If a WebView fails to process an input event, or successfully navigate to a new URL within a reasonable time frame, the renderer is considered to be unresponsive, and this callback will be called.

This callback will continue to be called at regular intervals as long as the renderer remains unresponsive. If the renderer becomes responsive again, WebViewRendererClient#onRendererResponsive will be called once, and this method will not subsequently be called unless another period of unresponsiveness is detected.

No action is taken by WebView as a result of this method call. Applications may choose to terminate the associated renderer via the object that is passed to this callback, if in multiprocess mode, however this must be accompanied by correctly handling WebViewClient#onRenderProcessGone for this WebView, and all other WebViews associated with the same renderer. Failure to do so will result in application termination.

Parameters
`view`	`WebView`: The `WebView` for which unresponsiveness was detected. This value must never be `null`.
`renderer`	`WebViewRenderer`: The `WebViewRenderer` that has become unresponsive, or `null` if WebView is running in single process mode. This value may be `null`.