androidx.webkit

The androidx.webkit library is a static library you can add to your Android application in order to use android.webkit APIs that are not available for older platform versions.

Requirements

The minimum sdk version to use this library is 14.

How to declare the dependencies to use the library

Inside your app's build.gradle file, include this line in dependencies:

dependencies {
    ...
    implementation 'androidx.webkit:webkit:1.2.0'
}

Migrating to androidx.webkit

For static methods:

Old code:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
    WebView.startSafeBrowsing(appContext, callback);
}

New code:

if (WebViewFeature.isFeatureSupported(WebViewFeature.START_SAFE_BROWSING)) {
    WebViewCompat.startSafeBrowsing(appContext, callback);
}

Or, if you are using a non-static method:

Old code:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
    myWebView.postVisualStateCallback(requestId, callback);
}

New code:

if (WebViewFeature.isFeatureSupported(WebViewFeature.VISUAL_STATE_CALLBACK)) {
    WebViewCompat.postVisualStateCallback(myWebView, requestId, callback);
}

Interfaces

WebViewAssetLoader.PathHandler A handler that produces responses for a registered path. 
WebViewCompat.VisualStateCallback Callback interface supplied to WebViewCompat.postVisualStateCallback(WebView, long, WebViewCompat.VisualStateCallback) for receiving notifications about the visual state. 
WebViewCompat.WebMessageListener This listener receives messages sent on the JavaScript object which was injected by WebViewCompat.addWebMessageListener(WebView, String, Set, WebViewCompat.WebMessageListener)

Classes

JavaScriptReplyProxy This class represents the JavaScript object injected by WebViewCompat#addWebMessageListener
ProxyConfig Config for ProxyController.setProxyOverride(ProxyConfig, Executor, Runnable)
ProxyConfig.Builder ProxyConfig builder. 
ProxyConfig.ProxyRule Class that holds a scheme filter and a proxy URL. 
ProxyController Manages setting and clearing a process-specific override for the Android system-wide proxy settings that govern network requests made by WebView
SafeBrowsingResponseCompat Compatibility version of SafeBrowsingResponse
ServiceWorkerClientCompat Base class for clients to capture Service Worker related callbacks, see ServiceWorkerControllerCompat for usage example. 
ServiceWorkerControllerCompat Manages Service Workers used by WebView. 
ServiceWorkerWebSettingsCompat Manages settings state for all Service Workers. 
TracingConfig Holds tracing configuration information and predefined settings for TracingController
TracingConfig.Builder Builder used to create TracingConfig objects. 
TracingController Manages tracing of WebViews. 
WebMessageCompat The Java representation of the HTML5 PostMessage event. 
WebMessagePortCompat

The Java representation of the HTML5 message ports. 

WebMessagePortCompat.WebMessageCallbac