Get webview html5 video data source from Java reflections

WebViewDataSourceReflect.java

import android.net.Uri;
import android.util.Log;
import android.webkit.WebView;

/**
 * using java reflect method to get html5 video data source
 */
public class WebViewDataSourceReflect {

	private static final String TAG = WebViewDataSourceReflect.class.getSimpleName();

	private WebViewDataSourceReflect() {
		// TODO Auto-generated constructor stub
		throw new AssertionError();
	}
	
	public static String getVideoDataSource(WebView webView) {
	
		if (webView == null) {
			return null;
		}
		
		try {
			Field providerField = WebView.class.getDeclaredField("mProvider");
			providerField.setAccessible(true);
			
			Object providerObject = providerField.get(webView);
			
			if (providerObject != null) {
				Log.d(TAG, "get provider successfully " + providerObject.getClass().getName());
			}

			Class<?> webWebClassicClass = Class.forName("android.webkit.WebViewClassic");
			Field html5VideoProxyField = webWebClassicClass.getDeclaredField("mHTML5VideoViewProxy");
			html5VideoProxyField.setAccessible(true);
			
			Object html5VideoProxyObject = html5VideoProxyField.get(providerObject);
			
			if (html5VideoProxyObject != null) {
				Log.d(TAG, "get video proxy successfully " + html5VideoProxyObject.getClass().getName());
			}
			
			Class<?> html5VideoProxyClass = Class.forName("android.webkit.HTML5VideoViewProxy");
			for (Class<?> declaredClass: html5VideoProxyClass.getDeclaredClasses()) {
				if (declaredClass.getName().equals("android.webkit.HTML5VideoViewProxy$VideoPlayer")) {
					Field html5VideoViewField  = declaredClass.getDeclaredField("mHTML5VideoView");
					html5VideoViewField.setAccessible(true);
					Object html5VideoViewObject = html5VideoViewField.get(new Object());
					
					if (html5VideoViewObject != null) {
						Log.d(TAG, "get video view successfully " + html5VideoViewObject.getClass().getName());
						Class<?> html5VideoViewClass = Class.forName("android.webkit.HTML5VideoView");
						Field mediaPlayerField = html5VideoViewClass.getDeclaredField("mUri");
						mediaPlayerField.setAccessible(true);
						Uri uri = (Uri) mediaPlayerField.get(html5VideoViewObject);

						return uri.toString();
					}
				}
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}
}

This code snippet will return video's url after playback begin in Android webview

WanghongLin, thank you very much. But what to do for devices which have higher API (API 17 +) ? These devices use com.android.webview.chromium, and the reflection returns ClassNotFound exception for "android.webkit.WebViewClassic" and "android.webkit.HTML5VideoView". . I'm looking forward for your reply.