1、设置webview属性：

webView.setWebChromeClient(new MyWebChromeClient());

        webSettings = webView.getSettings();

        webSettings.setJavaScriptEnabled(true);

        webSettings.setPluginState(WebSettings.PluginState.ON);

        webSettings.setUseWideViewPort(true); 

        webSettings.setAllowFileAccess(true); 

        webSettings.setSupportZoom(true); 

        webSettings.setLoadWithOverviewMode(true);

        webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

            webSettings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);

        }

        webSettings.setUseWideViewPort(true);

        webView.addJavascriptInterface(new JavaScriptObject(this), "android");

2、设置AndroidManifest.xml:

//开启硬件加速

<activity android:name=".webview.WebViewAdActivity"  android:hardwareAccelerated="true"/>

3、关闭界面任在播放的问题：

@Override

public void onPause() {

    super.onPause();

    webView.onPause();

    webView.pauseTimers();

}

@Override

public void onResume() {

    super.onResume();

    webView.resumeTimers();

    webView.onResume();

}

@Override

protected void onDestroy() {

    webView.destroy();

    webView = null;

    super.onDestroy();

}